mirror of
https://github.com/golang/go
synced 2024-11-26 05:37:57 -07:00
44d4b69942
507 Commits
| Author | SHA1 | Message | Date | |
|---|---|---|---|---|
Danil Timerbulatov
|
527829a7cb |
all: remove newline characters after return statements
This commit is aimed at improving the readability and consistency of the code base. Extraneous newline characters were present after some return statements, creating unnecessary separation in the code. Fixes #64610 Change-Id: Ic1b05bf11761c4dff22691c2f1c3755f66d341f7 Reviewed-on: https://go-review.googlesource.com/c/go/+/548316 Auto-Submit: Dmitri Shuralyov <dmitshur@golang.org> LUCI-TryBot-Result: Go LUCI <golang-scoped@luci-project-accounts.iam.gserviceaccount.com> Reviewed-by: Michael Pratt <mpratt@google.com> Reviewed-by: Dmitri Shuralyov <dmitshur@golang.org> Reviewed-by: Dmitri Shuralyov <dmitshur@google.com> |
||
Joel Sing
|
70c7fb75e9 |
cmd/compile: correct code generation for right shifts on riscv64
The code generation on riscv64 will currently result in incorrect assembly when a 32 bit integer is right shifted by an amount that exceeds the size of the type. In particular, this occurs when an int32 or uint32 is cast to a 64 bit type and right shifted by a value larger than 31. Fix this by moving the SRAW/SRLW conversion into the right shift rules and removing the SignExt32to64/ZeroExt32to64. Add additional rules that rewrite to SRAIW/SRLIW when the shift is less than the size of the type, or replace/eliminate the shift when it exceeds the size of the type. Add SSA tests that would have caught this issue. Also add additional codegen tests to ensure that the resulting assembly is what we expect in these overflow cases. Fixes #64285 Change-Id: Ie97b05668597cfcb91413afefaab18ee1aa145ec Reviewed-on: https://go-review.googlesource.com/c/go/+/545035 Reviewed-by: Russ Cox <rsc@golang.org> Reviewed-by: Cherry Mui <cherryyz@google.com> Reviewed-by: M Zhuo <mzh@golangcn.org> Reviewed-by: Mark Ryan <markdryan@rivosinc.com> Run-TryBot: Joel Sing <joel@sing.id.au> TryBot-Result: Gopher Robot <gobot@golang.org> |
||
Keith Randall
|
bda1ef13f8 |
cmd/compile: fix memcombine pass for big endian, > 1 byte elements
The shift amounts were wrong in this case, leading to miscompilation of load combining. Also the store combining was not triggering when it should. Fixes #64468 Change-Id: Iaeb08972c5fc1d6f628800334789c6af7216e87b Reviewed-on: https://go-review.googlesource.com/c/go/+/546355 Reviewed-by: David Chase <drchase@google.com> Reviewed-by: Mauri de Souza Meneguzzo <mauri870@gmail.com> Reviewed-by: Keith Randall <khr@google.com> LUCI-TryBot-Result: Go LUCI <golang-scoped@luci-project-accounts.iam.gserviceaccount.com> |
||
Matthew Dempsky
|
00715d089d |
cmd/compile/internal/walk: copy SSA-able variables
order.go ensures expressions that are passed to the runtime by address are in fact addressable. However, in the case of local variables, if the variable hasn't already been marked as addrtaken, then taking its address here will effectively prevent the variable from being converted to SSA form. Instead, it's better to just copy the variable into a new temporary, which we can pass by address instead. This ensures the original variable can still be converted to SSA form. Fixes #63332. Change-Id: I182376d98d419df8bf07c400d84c344c9b82c0fb Reviewed-on: https://go-review.googlesource.com/c/go/+/541715 LUCI-TryBot-Result: Go LUCI <golang-scoped@luci-project-accounts.iam.gserviceaccount.com> Reviewed-by: Keith Randall <khr@golang.org> Reviewed-by: Keith Randall <khr@google.com> Auto-Submit: Matthew Dempsky <mdempsky@google.com> |
||
Paul E. Murphy
|
773039ed5c |
cmd/compile/internal/ssa: on PPC64, merge (CMPconst [0] (op ...)) more aggressively
Generate the CC version of many opcodes whose result is compared against signed 0. The approach taken here works even if the opcode result is used in multiple places too. Add support for ADD, ADDconst, ANDN, SUB, NEG, CNTLZD, NOR conversions to their CC opcode variant. These are the most commonly used variants. Also, do not set clobberFlags of CNTLZD and CNTLZW, they do not clobber flags. This results in about 1% smaller text sections in kubernetes binaries, and no regressions in the crypto benchmarks. Change-Id: I9e0381944869c3774106bf348dead5ecb96dffda Reviewed-on: https://go-review.googlesource.com/c/go/+/538636 Run-TryBot: Paul Murphy <murp@ibm.com> TryBot-Result: Gopher Robot <gobot@golang.org> LUCI-TryBot-Result: Go LUCI <golang-scoped@luci-project-accounts.iam.gserviceaccount.com> Reviewed-by: Jayanth Krishnamurthy <jayanth.krishnamurthy@ibm.com> Reviewed-by: Heschi Kreinick <heschi@google.com> Reviewed-by: Cherry Mui <cherryyz@google.com> Reviewed-by: Lynn Boger <laboger@linux.vnet.ibm.com> |
||
|
Paul E. Murphy
|
3128aeec87 |
cmd/internal/obj/ppc64: remove C_UCON optab matching class
This optab matching rule was used to match signed 16 bit values shifted left by 16 bits. Unsigned 16 bit values greater than 0x7FFF<<16 were classified as C_U32CON which led to larger than necessary codegen. Instead, rewrite logical/arithmetic operations in the preprocessor pass to use the 16 bit shifted immediate operation (e.g ADDIS vs ADD). This simplifies the optab matching rules, while also minimizing codegen size for large unsigned values. Note, ADDIS sign-extends the constant argument, all others do not. For matching opcodes, this means: MOVD $is<<16,Rx becomes ADDIS $is,Rx or ORIS $is,Rx MOVW $is<<16,Rx becomes ADDIS $is,Rx ADD $is<<16,[Rx,]Ry becomes ADDIS $is[Rx,]Ry OR $is<<16,[Rx,]Ry becomes ORIS $is[Rx,]Ry XOR $is<<16,[Rx,]Ry becomes XORIS $is[Rx,]Ry Change-Id: I1a988d9f52517a04bb8dc2e41d7caf3d5fff867c Reviewed-on: https://go-review.googlesource.com/c/go/+/536735 LUCI-TryBot-Result: Go LUCI <golang-scoped@luci-project-accounts.iam.gserviceaccount.com> Run-TryBot: Paul Murphy <murp@ibm.com> Reviewed-by: Heschi Kreinick <heschi@google.com> TryBot-Result: Gopher Robot <gobot@golang.org> Reviewed-by: Cherry Mui <cherryyz@google.com> Reviewed-by: Lynn Boger <laboger@linux.vnet.ibm.com> |
||
Ubuntu
|
8fc043ccfa |
cmd/compile: optimize right shifts of int32 on riscv64
The compiler is currently sign extending 32 bit signed integers to
64 bits before right shifting them using a 64 bit shift instruction.
There's no need to do this as RISC-V has instructions for right
shifting 32 bit signed values (sraw and sraiw) which sign extend
the result of the shift to 64 bits. Change the compiler so that
it uses sraw and sraiw for shifts of signed 32 bit integers reducing
in most cases the number of instructions needed to perform the shift.
Here are some examples of code sequences that are changed by this
patch:
int32(a) >> 2
before:
sll x5,x10,0x20
sra x10,x5,0x22
after:
sraw x10,x10,0x2
int32(v) >> int(s)
before:
sext.w x5,x10
sltiu x6,x11,64
add x6,x6,-1
or x6,x11,x6
sra x10,x5,x6
after:
sltiu x5,x11,32
add x5,x5,-1
or x5,x11,x5
sraw x10,x10,x5
int32(v) >> (int(s) & 31)
before:
sext.w x5,x10
and x6,x11,63
sra x10,x5,x6
after:
and x5,x11,31
sraw x10,x10,x5
int32(100) >> int(a)
before:
bltz x10,<target address calls runtime.panicshift>
sltiu x5,x10,64
add x5,x5,-1
or x5,x10,x5
li x6,100
sra x10,x6,x5
after:
bltz x10,<target address calls runtime.panicshift>
sltiu x5,x10,32
add x5,x5,-1
or x5,x10,x5
li x6,100
sraw x10,x6,x5
int32(v) >> (int(s) & 63)
before:
sext.w x5,x10
and x6,x11,63
sra x10,x5,x6
after:
and x5,x11,63
sltiu x6,x5,32
add x6,x6,-1
or x5,x5,x6
sraw x10,x10,x5
In most cases we eliminate one instruction. In the case where
we shift a int32 constant by a variable the number of instructions
generated is identical. A sra is simply replaced by a sraw. In the
unusual case where we shift right by a variable anded with a constant
> 31 but < 64, we generate two additional instructions. As this is
an unusual case we do not try to optimize for it.
Some improvements can be seen in some of the existing benchmarks,
notably in the utf8 package which performs right shifts of runes
which are signed 32 bit integers.
| utf8-old | utf8-new |
| sec/op | sec/op vs base |
EncodeASCIIRune-4 17.68n ± 0% 17.67n ± 0% ~ (p=0.312 n=10)
EncodeJapaneseRune-4 35.34n ± 0% 34.53n ± 1% -2.31% (p=0.000 n=10)
AppendASCIIRune-4 3.213n ± 0% 3.213n ± 0% ~ (p=0.318 n=10)
AppendJapaneseRune-4 36.14n ± 0% 35.35n ± 0% -2.19% (p=0.000 n=10)
DecodeASCIIRune-4 28.11n ± 0% 27.36n ± 0% -2.69% (p=0.000 n=10)
DecodeJapaneseRune-4 38.55n ± 0% 38.58n ± 0% ~ (p=0.612 n=10)
Change-Id: I60a91cbede9ce65597571c7b7dd9943eeb8d3cc2
Reviewed-on: https://go-review.googlesource.com/c/go/+/535115
Run-TryBot: Joel Sing <joel@sing.id.au>
TryBot-Result: Gopher Robot <gobot@golang.org>
Reviewed-by: Joel Sing <joel@sing.id.au>
Reviewed-by: Cherry Mui <cherryyz@google.com>
Reviewed-by: M Zhuo <mzh@golangcn.org>
Reviewed-by: David Chase <drchase@google.com>
|
||
Dmitri Shuralyov
|
b2fd76ab8d |
test: migrate remaining files to go:build syntax
Most of the test cases in the test directory use the new go:build syntax already. Convert the rest. In general, try to place the build constraint line below the test directive comment in more places. For #41184. For #60268. Change-Id: I11c41a0642a8a26dc2eda1406da908645bbc005b Cq-Include-Trybots: luci.golang.try:gotip-linux-386-longtest,gotip-linux-amd64-longtest,gotip-windows-amd64-longtest Reviewed-on: https://go-review.googlesource.com/c/go/+/536236 Reviewed-by: Ian Lance Taylor <iant@google.com> Reviewed-by: Dmitri Shuralyov <dmitshur@google.com> Auto-Submit: Dmitri Shuralyov <dmitshur@golang.org> LUCI-TryBot-Result: Go LUCI <golang-scoped@luci-project-accounts.iam.gserviceaccount.com> |
||
|
Paul E. Murphy
|
1c5862cc0a |
test/codegen: fix PPC64 AddLargeConst test
Commit |
||
|
Paul E. Murphy
|
061d77cb70 |
cmd/compile/internal/ssa: on PPC64, generate large constant paddi
This is only supported power10/linux/PPC64. This generates smaller, faster code by merging a pli + add into paddi. Change-Id: I1f4d522fce53aea4c072713cc119a9e0d7065acc Reviewed-on: https://go-review.googlesource.com/c/go/+/531717 Run-TryBot: Paul Murphy <murp@ibm.com> LUCI-TryBot-Result: Go LUCI <golang-scoped@luci-project-accounts.iam.gserviceaccount.com> Reviewed-by: Than McIntosh <thanm@google.com> Reviewed-by: Dmitri Shuralyov <dmitshur@google.com> TryBot-Result: Gopher Robot <gobot@golang.org> Reviewed-by: Lynn Boger <laboger@linux.vnet.ibm.com> |
||
Lynn Boger
|
80834af206 |
cmd/compile: avoid ANDCCconst on PPC64 if condition not needed
In the PPC64 ISA, the instruction to do an 'and' operation using an immediate constant is only available in the form that also sets CR0 (i.e. clobbers the condition register.) This means CR0 is being clobbered unnecessarily in many cases. That affects some decisions made during some compiler passes that check for it. In those cases when the constant used by the ANDCC is a right justified consecutive set of bits, a shift instruction can be used which has the same effect if CR0 does not need to be set. The rule to do that has been added to the late rules file after other rules using ANDCCconst have been processed in the main rules file. Some codegen tests had to be updated since ANDCC is no longer generated for some cases. A new test case was added to verify the ANDCC is present if the results for both the AND and CR0 are used. Change-Id: I304f607c039a458e2d67d25351dd00aea72ba542 Reviewed-on: https://go-review.googlesource.com/c/go/+/531435 Run-TryBot: Lynn Boger <laboger@linux.vnet.ibm.com> Reviewed-by: Paul Murphy <murp@ibm.com> LUCI-TryBot-Result: Go LUCI <golang-scoped@luci-project-accounts.iam.gserviceaccount.com> Reviewed-by: Carlos Amedee <carlos@golang.org> Reviewed-by: Jayanth Krishnamurthy <jayanth.krishnamurthy@ibm.com> TryBot-Result: Gopher Robot <gobot@golang.org> Reviewed-by: Dmitri Shuralyov <dmitshur@google.com> |
||
|
Keith Randall
|
657c885fb9 |
cmd/compile: when combining stores, use line number of first store
var p *[2]uint32 = ... p[0] = 0 p[1] = 0 When we combine these two 32-bit stores into a single 64-bit store, use the line number of the first store, not the second one. This differs from the default behavior because usually with the combining that the compiler does, we use the line number of the last instruction in the combo (e.g. load+add, we use the line number of the add). This is the same behavior that gcc does in C (picking the line number of the first of a set of combined stores). Change-Id: Ie70bf6151755322d33ecd50e4d9caf62f7881784 Reviewed-on: https://go-review.googlesource.com/c/go/+/521678 TryBot-Result: Gopher Robot <gobot@golang.org> Run-TryBot: Keith Randall <khr@golang.org> Reviewed-by: Keith Randall <khr@google.com> Reviewed-by: David Chase <drchase@google.com> |
||
|
Keith Randall
|
e0948d825d |
cmd/compile: use type hash from itab field instead of type field
It is one less dependent load away, and right next to another field in the itab we also load as part of the type switch or type assert. Change-Id: If7aaa7814c47bd79a6c7ed4232ece0bc1d63550e Reviewed-on: https://go-review.googlesource.com/c/go/+/533117 Reviewed-by: Cuong Manh Le <cuong.manhle.vn@gmail.com> Reviewed-by: Keith Randall <khr@google.com> LUCI-TryBot-Result: Go LUCI <golang-scoped@luci-project-accounts.iam.gserviceaccount.com> Reviewed-by: Matthew Dempsky <mdempsky@google.com> |
||
|
Keith Randall
|
afd7c15c7f |
cmd/compile: use cache in front of convI2I
This is the last of the getitab users to receive a cache. We should now no longer see getitab (and callees) in profiles. Hopefully. Change-Id: I2ed72b9943095bbe8067c805da7f08e00706c98c Reviewed-on: https://go-review.googlesource.com/c/go/+/531055 Reviewed-by: Cuong Manh Le <cuong.manhle.vn@gmail.com> LUCI-TryBot-Result: Go LUCI <golang-scoped@luci-project-accounts.iam.gserviceaccount.com> Reviewed-by: Michael Pratt <mpratt@google.com> Reviewed-by: Matthew Dempsky <mdempsky@google.com> |
||
|
Mark Ryan
|
561bf0457f |
cmd/compile: optimize right shifts of uint32 on riscv
The compiler is currently zero extending 32 bit unsigned integers to
64 bits before right shifting them using a 64 bit shift instruction.
There's no need to do this as RISC-V has instructions for right
shifting 32 bit unsigned values (srlw and srliw) which zero extend
the result of the shift to 64 bits. Change the compiler so that
it uses srlw and srliw for 32 bit unsigned shifts reducing in most
cases the number of instructions needed to perform the shift.
Here are some examples of code sequences that are changed by this
patch:
uint32(a) >> 2
before:
sll x5,x10,0x20
srl x10,x5,0x22
after:
srlw x10,x10,0x2
uint32(a) >> int(b)
before:
sll x5,x10,0x20
srl x5,x5,0x20
srl x5,x5,x11
sltiu x6,x11,64
neg x6,x6
and x10,x5,x6
after:
srlw x5,x10,x11
sltiu x6,x11,32
neg x6,x6
and x10,x5,x6
bits.RotateLeft32(uint32(a), 1)
before:
sll x5,x10,0x1
sll x6,x10,0x20
srl x7,x6,0x3f
or x5,x5,x7
after:
sll x5,x10,0x1
srlw x6,x10,0x1f
or x10,x5,x6
bits.RotateLeft32(uint32(a), int(b))
before:
and x6,x11,31
sll x7,x10,x6
sll x8,x10,0x20
srl x8,x8,0x20
add x6,x6,-32
neg x6,x6
srl x9,x8,x6
sltiu x6,x6,64
neg x6,x6
and x6,x9,x6
or x6,x6,x7
after:
and x5,x11,31
sll x6,x10,x5
add x5,x5,-32
neg x5,x5
srlw x7,x10,x5
sltiu x5,x5,32
neg x5,x5
and x5,x7,x5
or x10,x6,x5
The one regression observed is the following case, an unbounded right
shift of a uint32 where the value we're shifting by is known to be
< 64 but > 31. As this is an unusual case this commit does not
optimize for it, although the existing code does.
uint32(a) >> (b & 63)
before:
sll x5,x10,0x20
srl x5,x5,0x20
and x6,x11,63
srl x10,x5,x6
after
and x5,x11,63
srlw x6,x10,x5
sltiu x5,x5,32
neg x5,x5
and x10,x6,x5
Here we have one extra instruction.
Some benchmark highlights, generated on a VisionFive2 8GB running
Ubuntu 23.04.
pkg: math/bits
LeadingZeros32-4 18.64n ± 0% 17.32n ± 0% -7.11% (p=0.000 n=10)
LeadingZeros64-4 15.47n ± 0% 15.51n ± 0% +0.26% (p=0.027 n=10)
TrailingZeros16-4 18.48n ± 0% 17.68n ± 0% -4.33% (p=0.000 n=10)
TrailingZeros32-4 16.87n ± 0% 16.07n ± 0% -4.74% (p=0.000 n=10)
TrailingZeros64-4 15.26n ± 0% 15.27n ± 0% +0.07% (p=0.043 n=10)
OnesCount32-4 20.08n ± 0% 19.29n ± 0% -3.96% (p=0.000 n=10)
RotateLeft-4 8.864n ± 0% 8.838n ± 0% -0.30% (p=0.006 n=10)
RotateLeft32-4 8.837n ± 0% 8.032n ± 0% -9.11% (p=0.000 n=10)
Reverse32-4 29.77n ± 0% 26.52n ± 0% -10.93% (p=0.000 n=10)
ReverseBytes32-4 9.640n ± 0% 8.838n ± 0% -8.32% (p=0.000 n=10)
Sub32-4 8.835n ± 0% 8.035n ± 0% -9.06% (p=0.000 n=10)
geomean 11.50n 11.33n -1.45%
pkg: crypto/md5
Hash8Bytes-4 1.486µ ± 0% 1.426µ ± 0% -4.04% (p=0.000 n=10)
Hash64-4 2.079µ ± 0% 1.968µ ± 0% -5.36% (p=0.000 n=10)
Hash128-4 2.720µ ± 0% 2.557µ ± 0% -5.99% (p=0.000 n=10)
Hash256-4 3.996µ ± 0% 3.733µ ± 0% -6.58% (p=0.000 n=10)
Hash512-4 6.541µ ± 0% 6.072µ ± 0% -7.18% (p=0.000 n=10)
Hash1K-4 11.64µ ± 0% 10.75µ ± 0% -7.58% (p=0.000 n=10)
Hash8K-4 82.95µ ± 0% 76.32µ ± 0% -7.99% (p=0.000 n=10)
Hash1M-4 10.436m ± 0% 9.591m ± 0% -8.10% (p=0.000 n=10)
Hash8M-4 83.50m ± 0% 76.73m ± 0% -8.10% (p=0.000 n=10)
Hash8BytesUnaligned-4 1.494µ ± 0% 1.434µ ± 0% -4.02% (p=0.000 n=10)
Hash1KUnaligned-4 11.64µ ± 0% 10.76µ ± 0% -7.52% (p=0.000 n=10)
Hash8KUnaligned-4 83.01µ ± 0% 76.32µ ± 0% -8.07% (p=0.000 n=10)
geomean 28.32µ 26.42µ -6.72%
Change-Id: I20483a6668cca1b53fe83944bee3706aadcf8693
Reviewed-on: https://go-review.googlesource.com/c/go/+/528975
Reviewed-by: Michael Pratt <mpratt@google.com>
Reviewed-by: Cherry Mui <cherryyz@google.com>
Reviewed-by: Joel Sing <joel@sing.id.au>
Run-TryBot: Joel Sing <joel@sing.id.au>
TryBot-Result: Gopher Robot <gobot@golang.org>
|
||
David Chase
|
b72bbaebf9 |
cmd/compile: expand calls cleanup
Convert expand calls into a smaller number of focused recursive rewrites, and rely on an enhanced version of "decompose" to clean up afterwards. Debugging information seems to emerge intact. Change-Id: Ic46da4207e3a4da5c8e2c47b637b0e35abbe56bb Reviewed-on: https://go-review.googlesource.com/c/go/+/507295 Run-TryBot: David Chase <drchase@google.com> Reviewed-by: Cherry Mui <cherryyz@google.com> Reviewed-by: Keith Randall <khr@golang.org> TryBot-Result: Gopher Robot <gobot@golang.org> |
||
|
Keith Randall
|
cbcf8efa5f |
cmd/compile: use cache in front of type assert runtime call
That way we don't need to call into the runtime for every type assertion (to an interface type). name old time/op new time/op delta TypeAssert-24 3.78ns ± 3% 1.00ns ± 1% -73.53% (p=0.000 n=10+8) Change-Id: I0ba308aaf0f24a5495b4e13c814d35af0c58bfde Reviewed-on: https://go-review.googlesource.com/c/go/+/529316 LUCI-TryBot-Result: Go LUCI <golang-scoped@luci-project-accounts.iam.gserviceaccount.com> Reviewed-by: Keith Randall <khr@google.com> Reviewed-by: Matthew Dempsky <mdempsky@google.com> Reviewed-by: Cuong Manh Le <cuong.manhle.vn@gmail.com> |
||
|
Keith Randall
|
39263f34a3 |
cmd/compile: add a cache to interface type switches
That way we don't need to call into the runtime when the type being switched on has been seen many times before. The cache is just a hash table of a sample of all the concrete types that have been switched on at that source location. We record the matching case number and the resulting itab for each concrete input type. The caches seldom get large. The only two in a run of all.bash that get more than 100 entries, even with the sampling rate set to 1, are test/fixedbugs/issue29264.go, with 101 test/fixedbugs/issue29312.go, with 254 Both happen at the type switch in fmt.(*pp).handleMethods, perhaps unsurprisingly. name old time/op new time/op delta SwitchInterfaceTypePredictable-24 25.8ns ± 2% 2.5ns ± 3% -90.43% (p=0.000 n=10+10) SwitchInterfaceTypeUnpredictable-24 37.5ns ± 2% 11.2ns ± 1% -70.02% (p=0.000 n=10+10) Change-Id: I4961ac9547b7f15b03be6f55cdcb972d176955eb Reviewed-on: https://go-review.googlesource.com/c/go/+/526658 Reviewed-by: Cuong Manh Le <cuong.manhle.vn@gmail.com> LUCI-TryBot-Result: Go LUCI <golang-scoped@luci-project-accounts.iam.gserviceaccount.com> Reviewed-by: Matthew Dempsky <mdempsky@google.com> Reviewed-by: Keith Randall <khr@google.com> |
||
|
Keith Randall
|
28f4ea16a2 |
cmd/compile: improve interface type switches
For type switches where the targets are interface types, call into the runtime once instead of doing a sequence of assert* calls. name old time/op new time/op delta SwitchInterfaceTypePredictable-24 26.6ns ± 1% 25.8ns ± 2% -2.86% (p=0.000 n=10+10) SwitchInterfaceTypeUnpredictable-24 39.3ns ± 1% 37.5ns ± 2% -4.57% (p=0.000 n=10+10) Not super helpful by itself, but this code organization allows followon CLs that add caching to the lookups. Change-Id: I7967f85a99171faa6c2550690e311bea8b54b01c Reviewed-on: https://go-review.googlesource.com/c/go/+/526657 Reviewed-by: Matthew Dempsky <mdempsky@google.com> LUCI-TryBot-Result: Go LUCI <golang-scoped@luci-project-accounts.iam.gserviceaccount.com> Reviewed-by: Cuong Manh Le <cuong.manhle.vn@gmail.com> Reviewed-by: Keith Randall <khr@google.com> |
||
|
Paul E. Murphy
|
dcd018b5c5 |
cmd/internal/obj/ppc64: generate MOVD mask constants in register
Add a new form of RLDC which maps directly to the ISA definition of rldc: RLDC Rs, $sh, $mb, Ra. This is used to generate mask constants described below. Using MOVD $-1, Rx; RLDC Rx, $sh, $mb, Rx, any mask constant can be generated. A mask is a contiguous series of 1 bits, which may wrap. Change-Id: Ifcaae1114080ad58b5fdaa3e5fc9019e2051f282 Reviewed-on: https://go-review.googlesource.com/c/go/+/531120 Reviewed-by: Matthew Dempsky <mdempsky@google.com> LUCI-TryBot-Result: Go LUCI <golang-scoped@luci-project-accounts.iam.gserviceaccount.com> Reviewed-by: Michael Pratt <mpratt@google.com> Reviewed-by: Lynn Boger <laboger@linux.vnet.ibm.com> Run-TryBot: Paul Murphy <murp@ibm.com> TryBot-Result: Gopher Robot <gobot@golang.org> |
||
|
Paul E. Murphy
|
36ecff0893 |
cmd/internal/obj/ppc64: generate small, shifted constants in register
Check for shifted 16b constants, and transform them to avoid the load penalty. This should be much faster than loading, and reduce binary size by reducing the constant pool size. Change-Id: I6834e08be7ca88e3b77449d226d08d199db84299 Reviewed-on: https://go-review.googlesource.com/c/go/+/531119 TryBot-Result: Gopher Robot <gobot@golang.org> Reviewed-by: Lynn Boger <laboger@linux.vnet.ibm.com> Reviewed-by: Michael Pratt <mpratt@google.com> Reviewed-by: Matthew Dempsky <mdempsky@google.com> Run-TryBot: Paul Murphy <murp@ibm.com> LUCI-TryBot-Result: Go LUCI <golang-scoped@luci-project-accounts.iam.gserviceaccount.com> |
||
|
Paul E. Murphy
|
c8caad423c |
cmd/compile/internal/ssa: optimize (AND (MOVDconst [-1] x)) on PPC64
This sequence can show up in the lowering pass on PPC64. If it makes it to the latelower pass, it will cause an error because it looks like it can be turned into RLDICL, but -1 isn't an accepted mask. Also, print more debug info if panic is called from encodePPC64RotateMask. Fixes #62698 Change-Id: I0f3322e2205357abe7fc28f96e05e3f7ad65567c Reviewed-on: https://go-review.googlesource.com/c/go/+/529195 Reviewed-by: Lynn Boger <laboger@linux.vnet.ibm.com> Run-TryBot: Paul Murphy <murp@ibm.com> TryBot-Result: Gopher Robot <gobot@golang.org> Reviewed-by: Matthew Dempsky <mdempsky@google.com> LUCI-TryBot-Result: Go LUCI <golang-scoped@luci-project-accounts.iam.gserviceaccount.com> Reviewed-by: Cherry Mui <cherryyz@google.com> |
||
eric fang
|
ace1494d92 |
cmd/compile: optimize absorbing InvertFlags into Noov comparisons for arm64
Previously (LessThanNoov (InvertFlags x)) is lowered as:
CSET
CSET
BIC
With this CL it's lowered as:
CSET
CSEL
This saves one instruction.
Similarly (GreaterEqualNoov (InvertFlags x)) is now lowered as:
CSET
CSINC
$ benchstat old.bench new.bench
goos: linux
goarch: arm64
│ old.bench │ new.bench │
│ sec/op │ sec/op vs base │
InvertLessThanNoov-160 2.249n ± 2% 2.190n ± 1% -2.62% (p=0.003 n=10)
Change-Id: Idd8979b7f4fe466e74b1a201c4aba7f1b0cffb0b
Reviewed-on: https://go-review.googlesource.com/c/go/+/526237
Reviewed-by: Heschi Kreinick <heschi@google.com>
TryBot-Result: Gopher Robot <gobot@golang.org>
Run-TryBot: Eric Fang <eric.fang@arm.com>
Reviewed-by: Cherry Mui <cherryyz@google.com>
|
||
Yi Yang
|
4ee1d542ed |
cmd/compile: sparse conditional constant propagation
sparse conditional constant propagation can discover optimization
opportunities that cannot be found by just combining constant folding
and constant propagation and dead code elimination separately.
This is a re-submit of PR#59575, which fix a broken dominance relationship caught by ssacheck
Updates https://github.com/golang/go/issues/59399
Change-Id: I57482dee38f8e80a610aed4f64295e60c38b7a47
GitHub-Last-Rev:
|
||
|
Paul E. Murphy
|
5cdb132228 |
cmd/compile/internal/ssa: improve masking codegen on PPC64
Generate RLDIC[LR] instead of MOVD mask, Rx; AND Rx, Ry, Rz. This helps reduce code size, and reduces the latency caused by the constant load. Similarly, for smaller-than-register values, truncate constants which exceed the range of the value's type to avoid needing to load a constant. Change-Id: I6019684795eb8962d4fd6d9585d08b17c15e7d64 Reviewed-on: https://go-review.googlesource.com/c/go/+/515576 Reviewed-by: Lynn Boger <laboger@linux.vnet.ibm.com> Reviewed-by: Dmitri Shuralyov <dmitshur@google.com> Run-TryBot: Paul Murphy <murp@ibm.com> TryBot-Result: Gopher Robot <gobot@golang.org> Reviewed-by: Cherry Mui <cherryyz@google.com> |
||
|
Keith Randall
|
4711299661 |
cmd/compile: use jump tables for large type switches
For large interface -> concrete type switches, we can use a jump table on some bits of the type hash instead of a binary search on the type hash. name old time/op new time/op delta SwitchTypePredictable-24 1.99ns ± 2% 1.78ns ± 5% -10.87% (p=0.000 n=10+10) SwitchTypeUnpredictable-24 11.0ns ± 1% 9.1ns ± 2% -17.55% (p=0.000 n=7+9) Change-Id: Ida4768e5d62c3ce1c2701288b72664aaa9e64259 Reviewed-on: https://go-review.googlesource.com/c/go/+/521497 Reviewed-by: Keith Randall <khr@google.com> Auto-Submit: Keith Randall <khr@google.com> TryBot-Result: Gopher Robot <gobot@golang.org> Reviewed-by: Cherry Mui <cherryyz@google.com> Run-TryBot: Keith Randall <khr@golang.org> |
||
|
Keith Randall
|
556e9c5f3e |
cmd/compile: allow non-pointer writes in the middle of a write barrier
This lets us combine more write barriers, getting rid of some of the test+branch and gcWriteBarrier* calls. With the new write barriers, it's easy to add a few non-pointer writes to the set of values written. We allow up to 2 non-pointer writes between pointer writes. This is enough for, for example, adjacent slice fields. Fixes #62126 Change-Id: I872d0fa9cc4eb855e270ffc0223b39fde1723c4b Reviewed-on: https://go-review.googlesource.com/c/go/+/521498 TryBot-Result: Gopher Robot <gobot@golang.org> Run-TryBot: Keith Randall <khr@golang.org> Reviewed-by: Cherry Mui <cherryyz@google.com> Reviewed-by: Keith Randall <khr@google.com> |
||
Meng Zhuo
|
63ab68ddc5 |
cmd/compile: add single-precision FMA code generation for riscv64
This CL adds FMADDS,FMSUBS,FNMADDS,FNMSUBS SSA support for riscv Change-Id: I1e7dd322b46b9e0f4923dbba256303d69ed12066 Reviewed-on: https://go-review.googlesource.com/c/go/+/506616 Reviewed-by: Joel Sing <joel@sing.id.au> Reviewed-by: David Chase <drchase@google.com> TryBot-Result: Gopher Robot <gobot@golang.org> Reviewed-by: Keith Randall <khr@google.com> Run-TryBot: M Zhuo <mzh@golangcn.org> |
||
|
Meng Zhuo
|
05f9511582 |
cmd/compile: improve FP FMA performance on riscv64
FMADD/FMSUB/FNSUB are an efficient FP FMA instructions, which can be used by the compiler to improve FP performance. Erf 188.0n ± 2% 139.5n ± 2% -25.82% (p=0.000 n=10) Erfc 193.6n ± 1% 143.2n ± 1% -26.01% (p=0.000 n=10) Erfinv 244.4n ± 2% 172.6n ± 0% -29.40% (p=0.000 n=10) Erfcinv 244.7n ± 2% 173.0n ± 1% -29.31% (p=0.000 n=10) geomean 216.0n 156.3n -27.65% Ref: The RISC-V Instruction Set Manual Volume I: Unprivileged ISA 11.6 Single-Precision Floating-Point Computational Instructions Change-Id: I89aa3a4df7576fdd47f4a6ee608ac16feafd093c Reviewed-on: https://go-review.googlesource.com/c/go/+/506036 Reviewed-by: Joel Sing <joel@sing.id.au> Run-TryBot: M Zhuo <mzh@golangcn.org> Reviewed-by: David Chase <drchase@google.com> Reviewed-by: Keith Randall <khr@golang.org> Reviewed-by: Keith Randall <khr@google.com> TryBot-Result: Gopher Robot <gobot@golang.org> |
||
|
Keith Randall
|
0b47b94a62 |
cmd/compile: remove more extension ops when not needed
If we're not using the upper bits, don't bother issuing a sign/zero extension operation. For arm64, after CL 520916 which fixed a correctness bug with extensions but as a side effect leaves many unnecessary ones still in place. Change-Id: I5f4fe4efbf2e9f80969ab5b9a6122fb812dc2ec0 Reviewed-on: https://go-review.googlesource.com/c/go/+/521496 Reviewed-by: Cherry Mui <cherryyz@google.com> Reviewed-by: Keith Randall <khr@google.com> Run-TryBot: Keith Randall <khr@golang.org> TryBot-Result: Gopher Robot <gobot@golang.org> |
||
|
Keith Randall
|
611706b171 |
cmd/compile: don't use BTS when OR works, add direct memory BTS operations
Stop using BTSconst and friends when ORLconst can be used instead. OR can be issued by more function units than BTS can, so it could lead to better IPC. OR might take a few more bytes to encode, but not a lot more. Still use BTSconst for cases where the constant otherwise wouldn't fit and would require a separate movabs instruction to materialize the constant. This happens when setting bits 31-63 of 64-bit targets. Add BTS-to-memory operations so we don't need to load/bts/store. Fixes #61694 Change-Id: I00379608df8fb0167cb01466e97d11dec7c1596c Reviewed-on: https://go-review.googlesource.com/c/go/+/515755 Reviewed-by: Keith Randall <khr@google.com> Run-TryBot: Keith Randall <khr@golang.org> TryBot-Result: Gopher Robot <gobot@golang.org> Reviewed-by: Cherry Mui <cherryyz@google.com> |
||
Jorropo
|
bac4e2f241 |
cmd/compile: try to rewrite loops to count down
Fixes #61629 This reduce the pressure on regalloc because then the loop only keep alive one value (the iterator) instead of the iterator and the upper bound since the comparison now acts against an immediate, often zero which can be skipped. This optimize things like: for i := 0; i < n; i++ { Or a range over a slice where the index is not used: for _, v := range someSlice { Or the new range over int from #61405: for range n { It is hit in 975 unique places while doing ./make.bash. Change-Id: I5facff8b267a0b60ea3c1b9a58c4d74cdb38f03f Reviewed-on: https://go-review.googlesource.com/c/go/+/512935 TryBot-Result: Gopher Robot <gobot@golang.org> Run-TryBot: Jorropo <jorropo.pgm@gmail.com> Reviewed-by: Keith Randall <khr@google.com> Reviewed-by: David Chase <drchase@google.com> Reviewed-by: Keith Randall <khr@golang.org> Auto-Submit: Keith Randall <khr@golang.org> |
||
Junxian Zhu
|
b1474672c6 |
cmd/compile: intrinsify Sub64 on mips64
This CL intrinsify Sub64 on mips64.
pkg: math/bits
_ sec/op _ sec/op vs base _
Sub-4 2.849n _ 0% 1.948n _ 0% -31.64% (p=0.000 n=8)
Sub32-4 3.447n _ 0% 3.446n _ 0% ~ (p=0.982 n=8)
Sub64-4 2.815n _ 0% 1.948n _ 0% -30.78% (p=0.000 n=8)
Sub64multiple-4 6.124n _ 0% 3.340n _ 0% -45.46% (p=0.000 n=8)
Change-Id: Ibba91a4350e4a549ae0b60d8cafc4bca05034b84
Reviewed-on: https://go-review.googlesource.com/c/go/+/498497
Reviewed-by: Keith Randall <khr@google.com>
Reviewed-by: Keith Randall <khr@golang.org>
TryBot-Result: Gopher Robot <gobot@golang.org>
Reviewed-by: Joel Sing <joel@sing.id.au>
Run-TryBot: Keith Randall <khr@golang.org>
Reviewed-by: Heschi Kreinick <heschi@google.com>
|
||
|
Junxian Zhu
|
5f8a2fdf09 |
cmd/compile: intrinsify Add64 on mips64
This CL intrinsify Add64 on mips64.
pkg: math/bits
_ sec/op _ sec/op vs base _
Add64-4 2.783n _ 0% 1.950n _ 0% -29.93% (p=0.000 n=8)
Add64multiple-4 5.713n _ 0% 3.063n _ 0% -46.38% (p=0.000 n=8)
pkg: crypto/elliptic
_ sec/op _ sec/op vs base _
ScalarBaseMult/P256-4 353.7_ _ 0% 282.7_ _ 0% -20.09% (p=0.000 n=8)
ScalarBaseMult/P224-4 330.5_ _ 0% 250.0_ _ 0% -24.37% (p=0.000 n=8)
ScalarBaseMult/P384-4 1228.8_ _ 0% 791.5_ _ 0% -35.59% (p=0.000 n=8)
ScalarBaseMult/P521-4 15.412m _ 0% 2.438m _ 0% -84.18% (p=0.000 n=8)
ScalarMult/P256-4 1189.4_ _ 0% 904.2_ _ 0% -23.98% (p=0.000 n=8)
ScalarMult/P224-4 1138.8_ _ 0% 813.8_ _ 0% -28.54% (p=0.000 n=8)
ScalarMult/P384-4 4.419m _ 0% 2.692m _ 0% -39.08% (p=0.000 n=8)
ScalarMult/P521-4 59.768m _ 0% 8.773m _ 0% -85.32% (p=0.000 n=8)
MarshalUnmarshal/P256/Uncompressed-4 8.697_ _ 1% 7.923_ _ 1% -8.91% (p=0.000 n=8)
MarshalUnmarshal/P256/Compressed-4 104.75_ _ 0% 66.29_ _ 0% -36.72% (p=0.000 n=8)
MarshalUnmarshal/P224/Uncompressed-4 8.728_ _ 1% 7.823_ _ 1% -10.37% (p=0.000 n=8)
MarshalUnmarshal/P224/Compressed-4 1035.7_ _ 0% 676.5_ _ 2% -34.69% (p=0.000 n=8)
MarshalUnmarshal/P384/Uncompressed-4 15.32_ _ 1% 11.81_ _ 1% -22.90% (p=0.000 n=8)
MarshalUnmarshal/P384/Compressed-4 399.8_ _ 0% 217.4_ _ 0% -45.62% (p=0.000 n=8)
MarshalUnmarshal/P521/Uncompressed-4 96.79_ _ 0% 20.32_ _ 0% -79.01% (p=0.000 n=8)
MarshalUnmarshal/P521/Compressed-4 6640.4_ _ 0% 790.8_ _ 0% -88.09% (p=0.000 n=8)
Change-Id: I8a0960b9665720c1d3e57dce36386e74db37fefa
Reviewed-on: https://go-review.googlesource.com/c/go/+/498496
Reviewed-by: Heschi Kreinick <heschi@google.com>
Run-TryBot: Keith Randall <khr@golang.org>
TryBot-Result: Gopher Robot <gobot@golang.org>
Reviewed-by: Keith Randall <khr@google.com>
Reviewed-by: Joel Sing <joel@sing.id.au>
Reviewed-by: Keith Randall <khr@golang.org>
|
||
|
Keith Randall
|
67983c0f78 |
cmd/compile: add indexed SET* opcodes for amd64
Update #61356 Change-Id: I391af98563b1c068208784c80ea736c78c29639d Reviewed-on: https://go-review.googlesource.com/c/go/+/510435 Run-TryBot: Keith Randall <khr@golang.org> Reviewed-by: Matthew Dempsky <mdempsky@google.com> Reviewed-by: Martin Möhrmann <martin@golang.org> TryBot-Result: Gopher Robot <gobot@golang.org> Reviewed-by: Martin Möhrmann <moehrmann@google.com> |
||
|
Keith Randall
|
505e50b1e3 |
cmd/compile: get rid of special case in scheduler for entry block
It isn't needed. Fixes #61356 Change-Id: Ib466a3eac90c3ea57888cf40c294513033fc6118 Reviewed-on: https://go-review.googlesource.com/c/go/+/509856 TryBot-Result: Gopher Robot <gobot@golang.org> Reviewed-by: Bryan Mills <bcmills@google.com> Reviewed-by: David Chase <drchase@google.com> Run-TryBot: Keith Randall <khr@golang.org> |
||
|
Keith Randall
|
d0964e172b |
cmd/compile: optimize s==s for strings
s==s is always true for strings. This comes up in NaN testing in generic code, where we want x==x to compile completely away except for float types. Fixes #60777 Change-Id: I3ce054b5121354de2f9751b010fb409f148cb637 Reviewed-on: https://go-review.googlesource.com/c/go/+/503795 Reviewed-by: Keith Randall <khr@google.com> Reviewed-by: Cherry Mui <cherryyz@google.com> TryBot-Result: Gopher Robot <gobot@golang.org> Run-TryBot: Keith Randall <khr@golang.org> |
||
|
Keith Randall
|
e713d6f939 |
cmd/compile: memcombine if values being stored are from consecutive loads
If we load 2 values and then store those 2 loaded values, we can likely perform that operation with a single wider load and store. Fixes #60709 Change-Id: Ifc5f92c2f1b174c6ed82a69070f16cec6853c770 Reviewed-on: https://go-review.googlesource.com/c/go/+/502295 Reviewed-by: David Chase <drchase@google.com> TryBot-Result: Gopher Robot <gobot@golang.org> Reviewed-by: Keith Randall <khr@google.com> Run-TryBot: Keith Randall <khr@golang.org> |
||
Jes Cok
|
5d481abc87 |
all: fix typos
Change-Id: I510b0a4bf3472d937393800dd57472c30beef329
GitHub-Last-Rev:
|
||
|
Paul E. Murphy
|
5e4000ad7f |
cmd/compile: on PPC64, fix sign/zero extension when masking
(ANDCCconst [y] (MOV.*reg x)) should only be merged when zero extending. Otherwise, sign bits are lost on negative values. (ANDCCconst [0xFF] (MOVBreg x)) should be simplified to a zero extension of x. Likewise for the MOVHreg variant. Fixes #61297 Change-Id: I04e4fd7dc6a826e870681f37506620d48393698b Reviewed-on: https://go-review.googlesource.com/c/go/+/508775 TryBot-Result: Gopher Robot <gobot@golang.org> Run-TryBot: Paul Murphy <murp@ibm.com> Reviewed-by: Bryan Mills <bcmills@google.com> Reviewed-by: Cherry Mui <cherryyz@google.com> |
||
|
Meng Zhuo
|
3fce111535 |
cmd/compile: fix FMA negative commutativity of riscv64
According to RISCV manual 11.6: FMADD x,y,z computes x*y+z and FNMADD x,y,z => -x*y-z FMSUB x,y,z => x*y-z FNMSUB x,y,z => -x*y+z respectively However our implement of SSA convert FMADD -x,y,z to FNMADD x,y,z which is wrong and should be convert to FNMSUB according to manual. Change-Id: Ib297bc83824e121fd7dda171ed56ea9694a4e575 Reviewed-on: https://go-review.googlesource.com/c/go/+/506575 Run-TryBot: M Zhuo <mzh@golangcn.org> Reviewed-by: Keith Randall <khr@golang.org> Reviewed-by: David Chase <drchase@google.com> Reviewed-by: Joedian Reid <joedian@golang.org> Reviewed-by: Michael Munday <mike.munday@lowrisc.org> TryBot-Result: Gopher Robot <gobot@golang.org> |
||
|
Meng Zhuo
|
5c1a15df41 |
test/codegen: enable Mul2 DivPow2 test for riscv64
Change-Id: Ice0bb7a665599b334e927a1b00d1a5b400c15e3d Reviewed-on: https://go-review.googlesource.com/c/go/+/506035 TryBot-Result: Gopher Robot <gobot@golang.org> Reviewed-by: David Chase <drchase@google.com> Reviewed-by: Keith Randall <khr@google.com> Reviewed-by: Keith Randall <khr@golang.org> Run-TryBot: Keith Randall <khr@golang.org> |
||
|
Meng Zhuo
|
b7e7467865 |
test/codegen: add fsqrt test for riscv64
Add FSQRTD FSQRTS codegen tests for riscv64 Change-Id: I16ca3753ad1ba37afbd9d0f887b078e33f98fda0 Reviewed-on: https://go-review.googlesource.com/c/go/+/503275 Reviewed-by: Keith Randall <khr@golang.org> Auto-Submit: Keith Randall <khr@golang.org> Run-TryBot: M Zhuo <mzh@golangcn.org> Reviewed-by: David Chase <drchase@google.com> Reviewed-by: Keith Randall <khr@google.com> TryBot-Result: Gopher Robot <gobot@golang.org> |
||
|
Keith Randall
|
c643b29381 |
cmd/compile: use callsite as line number for argument marshaling
Don't use the line number of the argument itself, as that may be from arbitrarily earlier in the function. Fixes #60673 Change-Id: Ifc0a2aaae221a256be3a4b0b2e04849bae4b79d7 Reviewed-on: https://go-review.googlesource.com/c/go/+/502656 TryBot-Result: Gopher Robot <gobot@golang.org> Run-TryBot: Keith Randall <khr@golang.org> Reviewed-by: David Chase <drchase@google.com> Reviewed-by: Keith Randall <khr@google.com> |
||
Austin Clements
|
c2e0bf0abf |
cmd/internal/testdir: pass if GOEXPERIMENT=cgocheck2 is set
Some testdir tests fail if GOEXPERIMENT=cgocheck2 is set. Fix this by skipping these tests. Change-Id: I58d4ef0cceb86bcf93220b4a44de9b9dc4879b16 Reviewed-on: https://go-review.googlesource.com/c/go/+/499675 TryBot-Result: Gopher Robot <gobot@golang.org> Run-TryBot: Austin Clements <austin@google.com> Reviewed-by: Keith Randall <khr@google.com> Reviewed-by: Keith Randall <khr@golang.org> |
||
Bryan Mills
|
02d234e34d |
Revert "cmd/compile: sparse conditional constant propagation"
This reverts CL 483875. Reason for revert: appears to cause internal compiler errors on the ssacheck builder. Change-Id: I662418384291470c1962c417797a5890dd9aa7a4 Reviewed-on: https://go-review.googlesource.com/c/go/+/497855 Reviewed-by: Keith Randall <khr@google.com> Run-TryBot: Bryan Mills <bcmills@google.com> Reviewed-by: Keith Randall <khr@golang.org> TryBot-Result: Gopher Robot <gobot@golang.org> Auto-Submit: Bryan Mills <bcmills@google.com> |
||
|
Junxian Zhu
|
f0d575c266 |
cmd/compile: optimize math.Float64(32)bits and math.Float64(32)frombits on mips64x
This CL use MFC1/MTC1 instructions to move data between GPR and FPR instead of stores and loads to move float/int values.
goos: linux
goarch: mips64le
pkg: math
│ oldmath │ newmath │
│ sec/op │ sec/op vs base │
Acos-4 258.2n ± 0% 258.2n ± 0% ~ (p=0.859 n=8)
Acosh-4 378.7n ± 0% 323.9n ± 0% -14.47% (p=0.000 n=8)
Asin-4 255.1n ± 2% 255.5n ± 0% +0.16% (p=0.002 n=8)
Asinh-4 407.1n ± 0% 348.7n ± 0% -14.35% (p=0.000 n=8)
Atan-4 189.5n ± 0% 189.9n ± 3% ~ (p=0.205 n=8)
Atanh-4 355.6n ± 0% 323.4n ± 2% -9.03% (p=0.000 n=8)
Atan2-4 284.1n ± 7% 280.1n ± 4% ~ (p=0.313 n=8)
Cbrt-4 314.3n ± 0% 236.4n ± 0% -24.79% (p=0.000 n=8)
Ceil-4 144.3n ± 3% 139.6n ± 0% ~ (p=0.069 n=8)
Compare-4 21.100n ± 0% 7.035n ± 0% -66.66% (p=0.000 n=8)
Compare32-4 20.100n ± 0% 6.030n ± 0% -70.00% (p=0.000 n=8)
Copysign-4 34.970n ± 0% 6.221n ± 0% -82.21% (p=0.000 n=8)
Cos-4 183.4n ± 3% 184.1n ± 5% ~ (p=0.159 n=8)
Cosh-4 487.9n ± 2% 419.6n ± 0% -14.00% (p=0.000 n=8)
Erf-4 160.6n ± 0% 157.9n ± 0% -1.68% (p=0.009 n=8)
Erfc-4 183.7n ± 4% 169.8n ± 0% -7.54% (p=0.000 n=8)
Erfinv-4 191.5n ± 4% 183.6n ± 0% -4.13% (p=0.023 n=8)
Erfcinv-4 192.0n ± 7% 184.3n ± 0% ~ (p=0.425 n=8)
Exp-4 398.2n ± 0% 340.1n ± 4% -14.58% (p=0.000 n=8)
ExpGo-4 383.3n ± 0% 327.3n ± 0% -14.62% (p=0.000 n=8)
Expm1-4 248.7n ± 5% 216.0n ± 0% -13.11% (p=0.000 n=8)
Exp2-4 372.8n ± 0% 316.9n ± 3% -14.98% (p=0.000 n=8)
Exp2Go-4 374.1n ± 0% 320.5n ± 0% -14.33% (p=0.000 n=8)
Abs-4 3.013n ± 0% 3.016n ± 0% +0.10% (p=0.020 n=8)
Dim-4 5.021n ± 0% 5.022n ± 0% ~ (p=0.270 n=8)
Floor-4 127.5n ± 4% 126.2n ± 3% ~ (p=0.186 n=8)
Max-4 72.32n ± 0% 61.33n ± 0% -15.20% (p=0.000 n=8)
Min-4 83.33n ± 1% 61.36n ± 0% -26.37% (p=0.000 n=8)
Mod-4 690.7n ± 0% 454.5n ± 0% -34.20% (p=0.000 n=8)
Frexp-4 116.30n ± 1% 71.80n ± 1% -38.26% (p=0.000 n=8)
Gamma-4 389.0n ± 0% 355.9n ± 1% -8.48% (p=0.000 n=8)
Hypot-4 102.40n ± 0% 83.90n ± 0% -18.07% (p=0.000 n=8)
HypotGo-4 105.45n ± 4% 84.82n ± 2% -19.56% (p=0.000 n=8)
Ilogb-4 99.13n ± 4% 63.71n ± 2% -35.73% (p=0.000 n=8)
J0-4 859.7n ± 0% 854.8n ± 0% -0.57% (p=0.000 n=8)
J1-4 873.9n ± 0% 875.7n ± 0% +0.21% (p=0.007 n=8)
Jn-4 1.855µ ± 0% 1.867µ ± 0% +0.65% (p=0.000 n=8)
Ldexp-4 130.50n ± 2% 64.35n ± 0% -50.69% (p=0.000 n=8)
Lgamma-4 208.8n ± 0% 200.9n ± 0% -3.78% (p=0.000 n=8)
Log-4 294.1n ± 0% 255.2n ± 3% -13.22% (p=0.000 n=8)
Logb-4 105.45n ± 1% 66.81n ± 1% -36.64% (p=0.000 n=8)
Log1p-4 268.2n ± 0% 211.3n ± 0% -21.21% (p=0.000 n=8)
Log10-4 295.4n ± 0% 255.2n ± 2% -13.59% (p=0.000 n=8)
Log2-4 152.9n ± 1% 127.5n ± 0% -16.61% (p=0.000 n=8)
Modf-4 103.40n ± 0% 75.36n ± 0% -27.12% (p=0.000 n=8)
Nextafter32-4 121.20n ± 1% 78.40n ± 0% -35.31% (p=0.000 n=8)
Nextafter64-4 110.40n ± 1% 64.91n ± 0% -41.20% (p=0.000 n=8)
PowInt-4 509.8n ± 1% 369.3n ± 1% -27.56% (p=0.000 n=8)
PowFrac-4 1189.0n ± 0% 947.8n ± 0% -20.29% (p=0.000 n=8)
Pow10Pos-4 15.07n ± 0% 15.07n ± 0% ~ (p=0.733 n=8)
Pow10Neg-4 20.10n ± 0% 20.10n ± 0% ~ (p=0.576 n=8)
Round-4 44.22n ± 0% 26.12n ± 0% -40.92% (p=0.000 n=8)
RoundToEven-4 46.22n ± 0% 27.12n ± 0% -41.31% (p=0.000 n=8)
Remainder-4 539.0n ± 1% 417.1n ± 1% -22.62% (p=0.000 n=8)
Signbit-4 17.985n ± 0% 5.694n ± 0% -68.34% (p=0.000 n=8)
Sin-4 185.7n ± 5% 172.9n ± 0% -6.89% (p=0.001 n=8)
Sincos-4 176.6n ± 0% 200.9n ± 0% +13.76% (p=0.000 n=8)
Sinh-4 495.8n ± 0% 435.9n ± 0% -12.09% (p=0.000 n=8)
SqrtIndirect-4 5.022n ± 0% 5.024n ± 0% ~ (p=0.083 n=8)
SqrtLatency-4 8.038n ± 0% 8.044n ± 0% ~ (p=0.524 n=8)
SqrtIndirectLatency-4 8.035n ± 0% 8.039n ± 0% +0.06% (p=0.017 n=8)
SqrtGoLatency-4 340.1n ± 0% 278.3n ± 0% -18.19% (p=0.000 n=8)
SqrtPrime-4 5.381µ ± 0% 5.386µ ± 0% ~ (p=0.662 n=8)
Tan-4 198.6n ± 1% 183.1n ± 0% -7.85% (p=0.000 n=8)
Tanh-4 491.3n ± 1% 440.8n ± 1% -10.29% (p=0.000 n=8)
Trunc-4 121.7n ± 0% 121.7n ± 0% ~ (p=0.769 n=8)
Y0-4 855.1n ± 0% 859.8n ± 0% +0.54% (p=0.007 n=8)
Y1-4 862.3n ± 0% 865.1n ± 0% +0.32% (p=0.007 n=8)
Yn-4 1.830µ ± 0% 1.837µ ± 0% +0.36% (p=0.011 n=8)
Float64bits-4 13.060n ± 0% 3.016n ± 0% -76.91% (p=0.000 n=8)
Float64frombits-4 13.060n ± 0% 3.018n ± 0% -76.90% (p=0.000 n=8)
Float32bits-4 13.060n ± 0% 3.016n ± 0% -76.91% (p=0.000 n=8)
Float32frombits-4 13.070n ± 0% 3.013n ± 0% -76.94% (p=0.000 n=8)
FMA-4 446.0n ± 0% 413.1n ± 1% -7.38% (p=0.000 n=8)
geomean 143.4n 108.3n -24.49%
Change-Id: I2067f7a5ae1126ada7ab3fb2083710e8212535e9
Reviewed-on: https://go-review.googlesource.com/c/go/+/493815
Reviewed-by: Dmitri Shuralyov <dmitshur@google.com>
Reviewed-by: Keith Randall <khr@golang.org>
TryBot-Result: Gopher Robot <gobot@golang.org>
Reviewed-by: Keith Randall <khr@google.com>
Run-TryBot: Dmitri Shuralyov <dmitshur@golang.org>
|
||
|
Yi Yang
|
fa50248ce6 |
cmd/compile: sparse conditional constant propagation
sparse conditional constant propagation can discover optimization opportunities that cannot be found by just combining constant folding and constant propagation and dead code elimination separately.
Updates #59399
Change-Id: Ia954e906480654a6f0cc065d75b5912f96f36b2e
GitHub-Last-Rev:
|
||
Cuong Manh Le
|
35a71dc56d |
cmd/compile: avoid slicebytetostring call in len(string([]byte))
Change-Id: Ie04503e61400a793a6a29a4b58795254deabe472 Reviewed-on: https://go-review.googlesource.com/c/go/+/497276 Reviewed-by: Keith Randall <khr@golang.org> Auto-Submit: Cuong Manh Le <cuong.manhle.vn@gmail.com> Run-TryBot: Cuong Manh Le <cuong.manhle.vn@gmail.com> Reviewed-by: Keith Randall <khr@google.com> TryBot-Result: Gopher Robot <gobot@golang.org> Reviewed-by: Matthew Dempsky <mdempsky@google.com> |
||
|
Matthew Dempsky
|
7f1467ff4d |
cmd/compile: incorporate inlined function names into closure naming
In Go 1.17, cmd/compile gained the ability to inline calls to functions that contain function literals (aka "closures"). This was implemented by duplicating the function literal body and emitting a second LSym, because in general it might be optimized better than the original function literal. However, the second LSym was named simply as any other function literal appearing literally in the enclosing function would be named. E.g., if f has a closure "f.funcX", and f is inlined into g, we would create "g.funcY" (N.B., X and Y need not be the same.). Users then have no idea this function originally came from f. With this CL, the inlined call stack is incorporated into the clone LSym's name: instead of "g.funcY", it's named "g.f.funcY". In the future, it seems desirable to arrange for the clone's name to appear exactly as the original name, so stack traces remain the same as when -l or -d=inlfuncswithclosures are used. But it's unclear whether the linker supports that today, or whether any downstream tooling would be confused by this. Updates #60324. Change-Id: Ifad0ccef7e959e72005beeecdfffd872f63982f8 Reviewed-on: https://go-review.googlesource.com/c/go/+/497137 Reviewed-by: Michael Pratt <mpratt@google.com> TryBot-Result: Gopher Robot <gobot@golang.org> Run-TryBot: Matthew Dempsky <mdempsky@google.com> |
||
|
Keith Randall
|
6042a062dc |
cmd/compile: make memcombine pass a bit more robust to reassociation of exprs
Be more liberal about expanding the OR tree. Handle any tree shape instead of a fully left or right associative tree. Also remove tail feature, it isn't ever needed. Change-Id: If16bebef94b952a604d6069e9be3d9129994cb6f Reviewed-on: https://go-review.googlesource.com/c/go/+/494056 TryBot-Result: Gopher Robot <gobot@golang.org> Run-TryBot: Keith Randall <khr@golang.org> Reviewed-by: Ryan Berger <ryanbberger@gmail.com> Reviewed-by: Keith Randall <khr@google.com> Reviewed-by: David Chase <drchase@google.com> |
||
|
Lynn Boger
|
4481042c43 |
cmd/compile: update rules to generate more prefixed instructions
This modifies some existing rules to allow more prefixed instructions to be generated when using GOPPC64=power10. Some rules also check if PCRel is available, which is currently supported for linux/ppc64le and linux/ppc64 (internal linking only). Prior to p10, DS-offset loads and stores had a 16 bit size limit for the offset field. If the offset of the data for load or store was beyond this range then an indexed load or store would be selected by the rules. In p10 the assembler can generate prefixed instructions in this case, but does not if an indexed instruction was selected during the lowering pass. This allows many more cases to use prefixed loads or stores, reducing function sizes and improving performance in some cases where the code change happens in key loops. For example in strconv BenchmarkAppendQuoteRune before: 12c5e4: 15 00 10 06 pla r10,1425660 12c5e8: fc c0 40 39 12c5ec: 00 00 6a e8 ld r3,0(r10) 12c5f0: 10 00 aa e8 ld r5,16(r10) After this change: 12a828: 15 00 10 04 pld r3,1433272 12a82c: b8 de 60 e4 12a830: 15 00 10 04 pld r5,1433280 12a834: c0 de a0 e4 Performs better in the second case. A testcase was added to verify that the rules correctly select a load or store based on the offset and whether power10 or earlier. Change-Id: I4335fed0bd9b8aba8a4f84d69b89f819cc464846 Reviewed-on: https://go-review.googlesource.com/c/go/+/477398 Reviewed-by: Heschi Kreinick <heschi@google.com> Reviewed-by: Archana Ravindar <aravind5@in.ibm.com> Reviewed-by: Cherry Mui <cherryyz@google.com> TryBot-Result: Gopher Robot <gobot@golang.org> Run-TryBot: Lynn Boger <laboger@linux.vnet.ibm.com> Reviewed-by: Paul Murphy <murp@ibm.com> |
||
|
Dmitri Shuralyov
|
7cc4516ac8 |
internal/testdir: move to cmd/internal/testdir
The effect and motivation is for the test to be selected when doing 'go test cmd' and not when doing 'go test std' since it's primarily about testing the Go compiler and linker. Other than that, it's run by all.bash and 'go test std cmd' as before. For #56844. Fixes #60059. Change-Id: I2d499af013f9d9b8761fdf4573f8d27d80c1fccf Reviewed-on: https://go-review.googlesource.com/c/go/+/493876 Run-TryBot: Dmitri Shuralyov <dmitshur@golang.org> Reviewed-by: Bryan Mills <bcmills@google.com> Auto-Submit: Dmitri Shuralyov <dmitshur@golang.org> TryBot-Result: Gopher Robot <gobot@golang.org> Reviewed-by: Dmitri Shuralyov <dmitshur@google.com> |
||
Stefan
|
95c4f320d5 |
cmd/compile: add De Morgan's rewrite rule
Adds rules that rewrites statements such as ~P&~Q as ~(P|Q) and ~P|~Q as ~(P&Q), removing an extraneous instruction.
Change-Id: Icedb97df741680ddf9799df79df78657173aa500
GitHub-Last-Rev:
|
||
|
Lynn Boger
|
bc3bdfa977 |
test: add memcombine testcases for ppc64
Thanks to the recent addition of the memcombine pass, the ppc64 ports now have the memcombine optimizations. Previously in PPC64.rules, the memcombine rules were only added for ppc64le targets due to the significant increase in size of the rewritePPC64.go file when those rules were added. The ppc64 and ppc64le rules had to be different because of the byte order due to endianness differences. This enables the memcombine tests to be run on ppc64 as well as ppc64le. Change-Id: I4081e2d94617a1b66541d536c0c2662e266c9c1e Reviewed-on: https://go-review.googlesource.com/c/go/+/492615 Run-TryBot: Lynn Boger <laboger@linux.vnet.ibm.com> Reviewed-by: Cherry Mui <cherryyz@google.com> TryBot-Result: Gopher Robot <gobot@golang.org> Reviewed-by: Keith Randall <khr@golang.org> Reviewed-by: Keith Randall <khr@google.com> Auto-Submit: Lynn Boger <laboger@linux.vnet.ibm.com> |
||
|
Junxian Zhu
|
5cad8d41ca |
math: optimize math.Abs on mipsx
This commit optimized math.Abs function implementation on mipsx.
Tested on loongson 3A2000.
goos: linux
goarch: mipsle
pkg: math
│ oldmath │ newmath │
│ sec/op │ sec/op vs base │
Acos-4 282.6n ± 0% 282.3n ± 0% ~ (p=0.140 n=7)
Acosh-4 506.1n ± 0% 451.8n ± 0% -10.73% (p=0.001 n=7)
Asin-4 272.3n ± 0% 272.2n ± 0% ~ (p=0.808 n=7)
Asinh-4 529.7n ± 0% 475.3n ± 0% -10.27% (p=0.001 n=7)
Atan-4 208.2n ± 0% 207.9n ± 0% ~ (p=0.134 n=7)
Atanh-4 503.4n ± 1% 449.7n ± 0% -10.67% (p=0.001 n=7)
Atan2-4 310.5n ± 0% 310.5n ± 0% ~ (p=0.928 n=7)
Cbrt-4 359.3n ± 0% 358.8n ± 0% ~ (p=0.121 n=7)
Ceil-4 203.9n ± 0% 204.0n ± 0% ~ (p=0.600 n=7)
Compare-4 23.11n ± 0% 23.11n ± 0% ~ (p=0.702 n=7)
Compare32-4 19.09n ± 0% 19.12n ± 0% ~ (p=0.070 n=7)
Copysign-4 33.20n ± 0% 34.02n ± 0% +2.47% (p=0.001 n=7)
Cos-4 422.5n ± 0% 385.4n ± 1% -8.78% (p=0.001 n=7)
Cosh-4 628.0n ± 0% 545.5n ± 0% -13.14% (p=0.001 n=7)
Erf-4 193.7n ± 2% 192.7n ± 1% ~ (p=0.430 n=7)
Erfc-4 192.8n ± 1% 193.0n ± 0% ~ (p=0.245 n=7)
Erfinv-4 220.7n ± 1% 221.5n ± 2% ~ (p=0.272 n=7)
Erfcinv-4 221.3n ± 1% 220.4n ± 2% ~ (p=0.738 n=7)
Exp-4 471.4n ± 0% 435.1n ± 0% -7.70% (p=0.001 n=7)
ExpGo-4 470.6n ± 0% 434.0n ± 0% -7.78% (p=0.001 n=7)
Expm1-4 243.1n ± 0% 243.4n ± 0% ~ (p=0.417 n=7)
Exp2-4 463.1n ± 0% 427.0n ± 0% -7.80% (p=0.001 n=7)
Exp2Go-4 462.4n ± 0% 426.2n ± 5% -7.83% (p=0.001 n=7)
Abs-4 37.000n ± 0% 8.039n ± 9% -78.27% (p=0.001 n=7)
Dim-4 18.09n ± 0% 18.11n ± 0% ~ (p=0.094 n=7)
Floor-4 151.9n ± 0% 151.8n ± 0% ~ (p=0.190 n=7)
Max-4 116.7n ± 1% 116.7n ± 1% ~ (p=0.842 n=7)
Min-4 116.6n ± 1% 116.6n ± 0% ~ (p=0.464 n=7)
Mod-4 1244.0n ± 0% 980.9n ± 0% -21.15% (p=0.001 n=7)
Frexp-4 199.0n ± 0% 146.7n ± 0% -26.28% (p=0.001 n=7)
Gamma-4 516.4n ± 0% 479.3n ± 1% -7.18% (p=0.001 n=7)
Hypot-4 169.8n ± 0% 117.8n ± 2% -30.62% (p=0.001 n=7)
HypotGo-4 170.8n ± 0% 117.5n ± 0% -31.21% (p=0.001 n=7)
Ilogb-4 160.8n ± 0% 109.5n ± 0% -31.90% (p=0.001 n=7)
J0-4 1.359µ ± 0% 1.305µ ± 0% -3.97% (p=0.001 n=7)
J1-4 1.386µ ± 0% 1.334µ ± 0% -3.75% (p=0.001 n=7)
Jn-4 2.864µ ± 0% 2.758µ ± 0% -3.70% (p=0.001 n=7)
Ldexp-4 202.9n ± 0% 151.7n ± 0% -25.23% (p=0.001 n=7)
Lgamma-4 234.0n ± 0% 234.3n ± 0% ~ (p=0.199 n=7)
Log-4 444.1n ± 0% 407.9n ± 0% -8.15% (p=0.001 n=7)
Logb-4 157.8n ± 0% 121.6n ± 0% -22.94% (p=0.001 n=7)
Log1p-4 354.8n ± 0% 315.4n ± 0% -11.10% (p=0.001 n=7)
Log10-4 453.9n ± 0% 417.9n ± 0% -7.93% (p=0.001 n=7)
Log2-4 245.3n ± 0% 209.1n ± 0% -14.76% (p=0.001 n=7)
Modf-4 126.6n ± 0% 126.6n ± 0% ~ (p=0.126 n=7)
Nextafter32-4 112.5n ± 0% 112.5n ± 0% ~ (p=0.853 n=7)
Nextafter64-4 141.7n ± 0% 141.6n ± 0% ~ (p=0.331 n=7)
PowInt-4 878.8n ± 1% 758.3n ± 1% -13.71% (p=0.001 n=7)
PowFrac-4 1.809µ ± 0% 1.615µ ± 0% -10.72% (p=0.001 n=7)
Pow10Pos-4 18.10n ± 0% 18.12n ± 0% ~ (p=0.464 n=7)
Pow10Neg-4 17.09n ± 0% 17.09n ± 0% ~ (p=0.263 n=7)
Round-4 68.36n ± 0% 68.33n ± 0% ~ (p=0.325 n=7)
RoundToEven-4 78.40n ± 0% 78.40n ± 0% ~ (p=0.934 n=7)
Remainder-4 894.0n ± 1% 753.4n ± 1% -15.73% (p=0.001 n=7)
Signbit-4 18.09n ± 0% 18.09n ± 0% ~ (p=0.761 n=7)
Sin-4 389.8n ± 1% 389.8n ± 0% ~ (p=0.995 n=7)
Sincos-4 416.0n ± 0% 415.9n ± 0% ~ (p=0.361 n=7)
Sinh-4 634.6n ± 4% 585.6n ± 1% -7.72% (p=0.001 n=7)
SqrtIndirect-4 8.035n ± 0% 8.036n ± 0% ~ (p=0.523 n=7)
SqrtLatency-4 8.039n ± 0% 8.037n ± 0% ~ (p=0.218 n=7)
SqrtIndirectLatency-4 8.040n ± 0% 8.040n ± 0% ~ (p=0.652 n=7)
SqrtGoLatency-4 895.7n ± 0% 896.6n ± 0% +0.10% (p=0.004 n=7)
SqrtPrime-4 5.406µ ± 0% 5.407µ ± 0% ~ (p=0.592 n=7)
Tan-4 406.1n ± 0% 405.8n ± 1% ~ (p=0.435 n=7)
Tanh-4 627.6n ± 0% 545.5n ± 0% -13.08% (p=0.001 n=7)
Trunc-4 146.7n ± 1% 146.7n ± 0% ~ (p=0.755 n=7)
Y0-4 1.359µ ± 0% 1.310µ ± 0% -3.61% (p=0.001 n=7)
Y1-4 1.351µ ± 0% 1.301µ ± 0% -3.70% (p=0.001 n=7)
Yn-4 2.829µ ± 0% 2.729µ ± 0% -3.53% (p=0.001 n=7)
Float64bits-4 14.08n ± 0% 14.07n ± 0% ~ (p=0.069 n=7)
Float64frombits-4 19.09n ± 0% 19.10n ± 0% ~ (p=0.755 n=7)
Float32bits-4 13.06n ± 0% 13.07n ± 1% ~ (p=0.586 n=7)
Float32frombits-4 13.06n ± 0% 13.06n ± 0% ~ (p=0.853 n=7)
FMA-4 606.9n ± 0% 606.8n ± 0% ~ (p=0.393 n=7)
geomean 201.1n 185.4n -7.81%
Change-Id: I6d41a97ad3789ed5731588588859ac0b8b13b664
Reviewed-on: https://go-review.googlesource.com/c/go/+/484675
Reviewed-by: Rong Zhang <rongrong@oss.cipunited.com>
Reviewed-by: Bryan Mills <bcmills@google.com>
TryBot-Result: Gopher Robot <gobot@golang.org>
Reviewed-by: Cherry Mui <cherryyz@google.com>
Run-TryBot: Than McIntosh <thanm@google.com>
|
||
|
Junxian Zhu
|
574431cfcd |
math: optimize math.Abs on mips64x
This commit optimized math.Abs function implementation on mips64x.
Tested on loongson 3A2000.
goos: linux
goarch: mips64le
pkg: math
│ oldmath │ newmath │
│ sec/op │ sec/op vs base │
Acos-4 258.0n ± ∞ ¹ 257.1n ± ∞ ¹ -0.35% (p=0.008 n=5)
Acosh-4 417.0n ± ∞ ¹ 377.9n ± ∞ ¹ -9.38% (p=0.008 n=5)
Asin-4 248.0n ± ∞ ¹ 259.9n ± ∞ ¹ +4.80% (p=0.008 n=5)
Asinh-4 439.6n ± ∞ ¹ 408.3n ± ∞ ¹ -7.12% (p=0.008 n=5)
Atan-4 189.6n ± ∞ ¹ 188.8n ± ∞ ¹ ~ (p=0.056 n=5)
Atanh-4 390.0n ± ∞ ¹ 356.4n ± ∞ ¹ -8.62% (p=0.008 n=5)
Atan2-4 279.0n ± ∞ ¹ 263.9n ± ∞ ¹ -5.41% (p=0.008 n=5)
Cbrt-4 314.2n ± ∞ ¹ 322.3n ± ∞ ¹ +2.58% (p=0.008 n=5)
Ceil-4 139.7n ± ∞ ¹ 136.6n ± ∞ ¹ -2.22% (p=0.008 n=5)
Compare-4 21.11n ± ∞ ¹ 21.09n ± ∞ ¹ ~ (p=0.405 n=5)
Compare32-4 20.10n ± ∞ ¹ 20.12n ± ∞ ¹ ~ (p=0.206 n=5)
Copysign-4 32.17n ± ∞ ¹ 35.71n ± ∞ ¹ +11.00% (p=0.008 n=5)
Cos-4 222.8n ± ∞ ¹ 169.8n ± ∞ ¹ -23.79% (p=0.008 n=5)
Cosh-4 550.2n ± ∞ ¹ 477.4n ± ∞ ¹ -13.23% (p=0.008 n=5)
Erf-4 171.6n ± ∞ ¹ 174.5n ± ∞ ¹ ~ (p=0.635 n=5)
Erfc-4 182.6n ± ∞ ¹ 170.2n ± ∞ ¹ -6.79% (p=0.008 n=5)
Erfinv-4 177.6n ± ∞ ¹ 196.6n ± ∞ ¹ +10.70% (p=0.008 n=5)
Erfcinv-4 177.8n ± ∞ ¹ 197.8n ± ∞ ¹ +11.25% (p=0.008 n=5)
Exp-4 422.8n ± ∞ ¹ 382.1n ± ∞ ¹ -9.63% (p=0.008 n=5)
ExpGo-4 416.1n ± ∞ ¹ 383.2n ± ∞ ¹ -7.91% (p=0.008 n=5)
Expm1-4 232.9n ± ∞ ¹ 252.2n ± ∞ ¹ +8.29% (p=0.008 n=5)
Exp2-4 404.8n ± ∞ ¹ 389.1n ± ∞ ¹ -3.88% (p=0.008 n=5)
Exp2Go-4 407.0n ± ∞ ¹ 372.3n ± ∞ ¹ -8.53% (p=0.008 n=5)
Abs-4 30.120n ± ∞ ¹ 3.014n ± ∞ ¹ -89.99% (p=0.008 n=5)
Dim-4 5.021n ± ∞ ¹ 5.023n ± ∞ ¹ ~ (p=0.071 n=5)
Floor-4 127.8n ± ∞ ¹ 127.1n ± ∞ ¹ -0.55% (p=0.008 n=5)
Max-4 77.69n ± ∞ ¹ 76.33n ± ∞ ¹ -1.75% (p=0.008 n=5)
Min-4 83.27n ± ∞ ¹ 77.87n ± ∞ ¹ -6.48% (p=0.008 n=5)
Mod-4 906.2n ± ∞ ¹ 692.9n ± ∞ ¹ -23.54% (p=0.008 n=5)
Frexp-4 150.6n ± ∞ ¹ 108.6n ± ∞ ¹ -27.89% (p=0.008 n=5)
Gamma-4 418.4n ± ∞ ¹ 386.1n ± ∞ ¹ -7.72% (p=0.008 n=5)
Hypot-4 148.20n ± ∞ ¹ 93.78n ± ∞ ¹ -36.72% (p=0.008 n=5)
HypotGo-4 148.20n ± ∞ ¹ 94.47n ± ∞ ¹ -36.26% (p=0.008 n=5)
Ilogb-4 135.50n ± ∞ ¹ 92.38n ± ∞ ¹ -31.82% (p=0.008 n=5)
J0-4 937.7n ± ∞ ¹ 861.7n ± ∞ ¹ -8.10% (p=0.008 n=5)
J1-4 915.4n ± ∞ ¹ 875.9n ± ∞ ¹ -4.32% (p=0.008 n=5)
Jn-4 1.974µ ± ∞ ¹ 1.863µ ± ∞ ¹ -5.62% (p=0.008 n=5)
Ldexp-4 158.5n ± ∞ ¹ 129.3n ± ∞ ¹ -18.42% (p=0.008 n=5)
Lgamma-4 209.0n ± ∞ ¹ 211.8n ± ∞ ¹ ~ (p=0.095 n=5)
Log-4 326.4n ± ∞ ¹ 295.2n ± ∞ ¹ -9.56% (p=0.008 n=5)
Logb-4 147.7n ± ∞ ¹ 105.0n ± ∞ ¹ -28.91% (p=0.008 n=5)
Log1p-4 303.4n ± ∞ ¹ 266.3n ± ∞ ¹ -12.23% (p=0.008 n=5)
Log10-4 329.2n ± ∞ ¹ 298.3n ± ∞ ¹ -9.39% (p=0.008 n=5)
Log2-4 187.4n ± ∞ ¹ 153.0n ± ∞ ¹ -18.36% (p=0.008 n=5)
Modf-4 110.5n ± ∞ ¹ 103.5n ± ∞ ¹ -6.33% (p=0.008 n=5)
Nextafter32-4 128.4n ± ∞ ¹ 121.5n ± ∞ ¹ -5.37% (p=0.016 n=5)
Nextafter64-4 109.5n ± ∞ ¹ 110.5n ± ∞ ¹ +0.91% (p=0.008 n=5)
PowInt-4 603.3n ± ∞ ¹ 516.4n ± ∞ ¹ -14.40% (p=0.008 n=5)
PowFrac-4 1.365µ ± ∞ ¹ 1.183µ ± ∞ ¹ -13.33% (p=0.008 n=5)
Pow10Pos-4 15.07n ± ∞ ¹ 15.07n ± ∞ ¹ ~ (p=0.738 n=5)
Pow10Neg-4 21.11n ± ∞ ¹ 21.10n ± ∞ ¹ ~ (p=0.190 n=5)
Round-4 44.23n ± ∞ ¹ 44.22n ± ∞ ¹ ~ (p=0.635 n=5)
RoundToEven-4 50.25n ± ∞ ¹ 46.27n ± ∞ ¹ -7.92% (p=0.008 n=5)
Remainder-4 675.6n ± ∞ ¹ 530.4n ± ∞ ¹ -21.49% (p=0.008 n=5)
Signbit-4 17.07n ± ∞ ¹ 17.95n ± ∞ ¹ +5.16% (p=0.008 n=5)
Sin-4 171.6n ± ∞ ¹ 189.1n ± ∞ ¹ +10.20% (p=0.008 n=5)
Sincos-4 201.5n ± ∞ ¹ 200.5n ± ∞ ¹ ~ (p=0.421 n=5)
Sinh-4 529.6n ± ∞ ¹ 484.6n ± ∞ ¹ -8.50% (p=0.008 n=5)
SqrtIndirect-4 5.021n ± ∞ ¹ 5.023n ± ∞ ¹ +0.04% (p=0.048 n=5)
SqrtLatency-4 8.032n ± ∞ ¹ 8.039n ± ∞ ¹ +0.09% (p=0.024 n=5)
SqrtIndirectLatency-4 8.036n ± ∞ ¹ 8.038n ± ∞ ¹ ~ (p=0.056 n=5)
SqrtGoLatency-4 338.8n ± ∞ ¹ 338.7n ± ∞ ¹ ~ (p=0.841 n=5)
SqrtPrime-4 5.379µ ± ∞ ¹ 5.382µ ± ∞ ¹ +0.06% (p=0.048 n=5)
Tan-4 182.7n ± ∞ ¹ 191.8n ± ∞ ¹ +4.98% (p=0.008 n=5)
Tanh-4 558.7n ± ∞ ¹ 497.6n ± ∞ ¹ -10.94% (p=0.008 n=5)
Trunc-4 122.5n ± ∞ ¹ 122.6n ± ∞ ¹ ~ (p=0.405 n=5)
Y0-4 892.8n ± ∞ ¹ 851.7n ± ∞ ¹ -4.60% (p=0.008 n=5)
Y1-4 887.2n ± ∞ ¹ 863.2n ± ∞ ¹ -2.71% (p=0.008 n=5)
Yn-4 1.889µ ± ∞ ¹ 1.832µ ± ∞ ¹ -3.02% (p=0.008 n=5)
Float64bits-4 13.05n ± ∞ ¹ 13.06n ± ∞ ¹ +0.08% (p=0.040 n=5)
Float64frombits-4 13.05n ± ∞ ¹ 13.06n ± ∞ ¹ ~ (p=0.143 n=5)
Float32bits-4 13.05n ± ∞ ¹ 13.06n ± ∞ ¹ +0.08% (p=0.008 n=5)
Float32frombits-4 13.05n ± ∞ ¹ 13.08n ± ∞ ¹ +0.23% (p=0.016 n=5)
FMA-4 445.7n ± ∞ ¹ 448.1n ± ∞ ¹ +0.54% (p=0.008 n=5)
geomean 157.2n 142.8n -9.17%
Change-Id: I9bf104848b588c9ecf79401a81d483d7fcdb0a79
Reviewed-on: https://go-review.googlesource.com/c/go/+/481575
Reviewed-by: M Zhuo <mzh@golangcn.org>
TryBot-Result: Gopher Robot <gobot@golang.org>
Reviewed-by: Cherry Mui <cherryyz@google.com>
Auto-Submit: Than McIntosh <thanm@google.com>
Reviewed-by: Bryan Mills <bcmills@google.com>
Run-TryBot: Than McIntosh <thanm@google.com>
Reviewed-by: Rong Zhang <rongrong@oss.cipunited.com>
|
||
|
Keith Randall
|
6b165577fe |
cmd/compile: remove memequal call from string compares in more cases
Add more rules to ensure that order doesn't matter. Add memequal 0 rule. Try to use a constant argument to memequal when one is available. Fixes #59684 Change-Id: I36e85ffbd949396ed700ed6e8ec2bc3ae013f5d2 Reviewed-on: https://go-review.googlesource.com/c/go/+/485535 Reviewed-by: Keith Randall <khr@google.com> Reviewed-by: Cherry Mui <cherryyz@google.com> Run-TryBot: Keith Randall <khr@golang.org> TryBot-Result: Gopher Robot <gobot@golang.org> |
||
ruinan
|
9be533a8ee |
cmd/compile: get more bounds info from logic operators in prove pass
Currently, the prove pass can get knowledge from some specific logic operators only before the CFG is explored, which means that the bounds information of the branch will be ignored. This CL updates the facts table by the logic operators in every branch. Combined with the branch information, this will be helpful for BCE in some circumstances. Fixes #57243 Change-Id: I0bd164f1b47804ccfc37879abe9788740b016fd5 Reviewed-on: https://go-review.googlesource.com/c/go/+/419555 Reviewed-by: Keith Randall <khr@golang.org> Run-TryBot: Eric Fang <eric.fang@arm.com> Reviewed-by: Keith Randall <khr@google.com> TryBot-Result: Gopher Robot <gobot@golang.org> Reviewed-by: Heschi Kreinick <heschi@google.com> |
||
|
erifan01
|
42f99b203d |
cmd/compile: optimize cmp to cmn under conditions < and >= on arm64
Under the right conditions we can optimize cmp comparisons to cmn
comparisons, such as:
func foo(a, b int) int {
var c int
if a + b < 0 {
c = 1
}
return c
}
Previously it's compiled as:
ADD R1, R0, R1
CMP $0, R1
CSET LT, R0
With this CL it's compiled as:
CMN R1, R0
CSET MI, R0
Here we need to pay attention to the overflow situation of a+b, the MI
flag means N==1, which doesn't honor the overflow flag V, its value
depends only on the sign of the result. So it has the same semantic of
the Go code, so it's correct.
Similarly, this CL also optimizes the case of >= comparison
using the PL conditional flag.
Change-Id: I47179faba5b30cca84ea69bafa2ad5241bf6dfba
Reviewed-on: https://go-review.googlesource.com/c/go/+/476116
Run-TryBot: Eric Fang <eric.fang@arm.com>
Reviewed-by: Cherry Mui <cherryyz@google.com>
Reviewed-by: David Chase <drchase@google.com>
TryBot-Result: Gopher Robot <gobot@golang.org>
|
||
|
erifan01
|
91a2e921dd |
cmd/compile: fix incorrect truncating when converting CMP to TST on arm64
CL 420434 optimized CMP into TST in some situations, but it has a bug, these four rules are not correct: (LessThan (CMPWconst [0] x:(ANDconst [c] y))) && x.Uses == 1 => (LessThan (TSTconst [c] y)) (LessEqual (CMPWconst [0] x:(ANDconst [c] y))) && x.Uses == 1 => (LessEqual (TSTconst [c] y)) (GreaterThan (CMPWconst [0] x:(ANDconst [c] y))) && x.Uses == 1 => (GreaterThan (TSTconst [c] y)) (GreaterEqual (CMPWconst [0] x:(ANDconst [c] y))) && x.Uses == 1 => (GreaterEqual (TSTconst [c] y)) But due to the existence of this rule (LessThan (CMPWconst [0] x:(ANDconst [c] y))) && x.Uses == 1 => (LessThan (TSTWconst [int32(c)] y)), the above rules have never been fired. This CL corrects them as: (LessThan (CMPconst [0] x:(ANDconst [c] y))) && x.Uses == 1 => (LessThan (TSTconst [c] y)) (LessEqual (CMPconst [0] x:(ANDconst [c] y))) && x.Uses == 1 => (LessEqual (TSTconst [c] y)) (GreaterThan (CMPconst [0] x:(ANDconst [c] y))) && x.Uses == 1 => (GreaterThan (TSTconst [c] y)) (GreaterEqual (CMPconst [0] x:(ANDconst [c] y))) && x.Uses == 1 => (GreaterEqual (TSTconst [c] y)) Change-Id: I7d60bcc9a266ee58388baeaab9f493b57cf1ad55 Reviewed-on: https://go-review.googlesource.com/c/go/+/473617 TryBot-Result: Gopher Robot <gobot@golang.org> Reviewed-by: Cherry Mui <cherryyz@google.com> Reviewed-by: Dmitri Shuralyov <dmitshur@google.com> Run-TryBot: Eric Fang <eric.fang@arm.com> |
||
Yi Yang
|
da4687923b |
cmd/compile: add rewrite rules for arithmetic operations
Add the following common local transformations
(t + x) - (t + y) == x - y
(t + x) - (y + t) == x - y
(x + t) - (y + t) == x - y
(x + t) - (t + y) == x - y
(x - t) + (t + y) == x + y
(x - t) + (y + t) == x + y
The compiler itself matches such patterns many times. This also aligns with other popular compilers.
Fixes #59111
Change-Id: Ibdfdb414782f8fcaa20b84ac5d43d0d9ae2c7b60
GitHub-Last-Rev:
|
||
Wayne Zuo
|
cedfcba3e8 |
cmd/compile: instrinsify TrailingZeros{8,32,64} for 386
This CL add support for instrinsifying the TrialingZeros{8,32,64}
functions for 386 architecture. We need handle the case when the input
is 0, which could lead to undefined output from the BSFL instruction.
Next CL will remove the assembly code in runtime/internal/sys package.
Change-Id: Ic168edf68e81bf69a536102100fdd3f56f0f4a1b
Reviewed-on: https://go-review.googlesource.com/c/go/+/475735
Reviewed-by: Keith Randall <khr@golang.org>
Reviewed-by: Keith Randall <khr@google.com>
Reviewed-by: Cherry Mui <cherryyz@google.com>
Run-TryBot: Wayne Zuo <wdvxdr@golangcn.org>
TryBot-Result: Gopher Robot <gobot@golang.org>
|
||
|
ruinan
|
4d180f71dc |
cmd/compile: omit redundant sign/unsign extension on arm64
On Arm64, all 32-bit instructions will ignore the upper 32 bits and clear them to zero for the result. No need to do an unsign extend before a 32 bit op. This CL removes the redundant unsign extension only for the existing 32-bit opcodes, and also omits the sign extension when the upper bit of the result can be predicted. Fixes #42162 Change-Id: I61e6670bfb8982572430e67a4fa61134a3ea240a CustomizedGitHooks: yes Reviewed-on: https://go-review.googlesource.com/c/go/+/427454 Reviewed-by: Keith Randall <khr@google.com> Auto-Submit: Eric Fang <eric.fang@arm.com> Reviewed-by: Keith Randall <khr@golang.org> Run-TryBot: Eric Fang <eric.fang@arm.com> Reviewed-by: Cherry Mui <cherryyz@google.com> TryBot-Result: Gopher Robot <gobot@golang.org> |
||
|
Dmitri Shuralyov
|
7a0799b2c0 |
cmd/dist, test: convert test/run.go runner to a cmd/go test
As motivated on the issue, we want to move the functionality of the run.go program to happen via a normal go test. Each .go test case in the GOROOT/test directory gets a subtest, and cmd/go's support for parallel test execution replaces run.go's own implementation thereof. The goal of this change is to have fairly minimal and readable diff while making an atomic changeover. The working directory is modified during the test execution to be GOROOT/test as it was with run.go, and most of the test struct and its run method are kept unchanged. The next CL in the stack applies further simplifications and cleanups that become viable. There's no noticeable difference in test execution time: it takes around 60-80 seconds both before and after on my machine. Test caching, which the previous runner lacked, can shorten the time significantly. For #37486. Fixes #56844. Change-Id: I209619dc9d90e7529624e49c01efeadfbeb5c9ae Reviewed-on: https://go-review.googlesource.com/c/go/+/463276 Run-TryBot: Dmitri Shuralyov <dmitshur@golang.org> Reviewed-by: Austin Clements <austin@google.com> Auto-Submit: Dmitri Shuralyov <dmitshur@golang.org> Reviewed-by: Dmitri Shuralyov <dmitshur@google.com> TryBot-Result: Gopher Robot <gobot@golang.org> |
||
Michael Munday
|
85d54a7667 |
cmd/compile: use zero constants in comparisons where possible
Some integer comparisons with 1 and -1 can be rewritten as comparisons with 0. For example, x < 1 is equivalent to x <= 0. This is an advantageous transformation on riscv64 because comparisons with zero do not require a constant to be loaded into a register. Other architectures will likely benefit too and the transformation is relatively benign on architectures that do not benefit. Change-Id: I2ce9821dd7605a660eb71d76e83a61f9bae1bf25 Reviewed-on: https://go-review.googlesource.com/c/go/+/350831 Reviewed-by: Keith Randall <khr@golang.org> Reviewed-by: Ian Lance Taylor <iant@google.com> Reviewed-by: Michael Knyszek <mknyszek@google.com> Run-TryBot: Michael Munday <mike.munday@lowrisc.org> TryBot-Result: Gopher Robot <gobot@golang.org> |
||
|
Lynn Boger
|
ebe49f98c8 |
cmd/compile: inline constant sized memclrNoHeapPointers calls on PPC64
Update the function isInlinableMemclr for ppc64 and ppc64le to enable inlining for the constant sized cases < 512. Larger cases can use dcbz which performs better but requires alignment checking so it is best to continue using memclrNoHeapPointers for those cases. Results on p10: MemclrKnownSize1 2.07ns ± 0% 0.57ns ± 0% -72.59% MemclrKnownSize2 2.56ns ± 5% 0.57ns ± 0% -77.82% MemclrKnownSize4 5.15ns ± 0% 0.57ns ± 0% -89.00% MemclrKnownSize8 2.23ns ± 0% 0.57ns ± 0% -74.57% MemclrKnownSize16 2.23ns ± 0% 0.50ns ± 0% -77.74% MemclrKnownSize32 2.28ns ± 0% 0.56ns ± 0% -75.28% MemclrKnownSize64 2.49ns ± 0% 0.72ns ± 0% -70.95% MemclrKnownSize112 2.97ns ± 2% 1.14ns ± 0% -61.72% MemclrKnownSize128 4.64ns ± 6% 2.45ns ± 1% -47.17% MemclrKnownSize192 5.45ns ± 5% 2.79ns ± 0% -48.87% MemclrKnownSize248 4.51ns ± 0% 2.83ns ± 0% -37.12% MemclrKnownSize256 6.34ns ± 1% 3.58ns ± 0% -43.53% MemclrKnownSize512 3.64ns ± 0% 3.64ns ± 0% -0.03% MemclrKnownSize1024 4.73ns ± 0% 4.73ns ± 0% +0.01% MemclrKnownSize4096 17.1ns ± 0% 17.1ns ± 0% +0.07% MemclrKnownSize512KiB 2.12µs ± 0% 2.12µs ± 0% ~ (all equal) Change-Id: If1abf5749f4802c64523a41fe0058bd144d0ea46 Reviewed-on: https://go-review.googlesource.com/c/go/+/464340 Run-TryBot: Lynn Boger <laboger@linux.vnet.ibm.com> Reviewed-by: Jakub Ciolek <jakub@ciolek.dev> Reviewed-by: Archana Ravindar <aravind5@in.ibm.com> Reviewed-by: Ian Lance Taylor <iant@google.com> Reviewed-by: Carlos Eduardo Seo <carlos.seo@linaro.org> TryBot-Result: Gopher Robot <gobot@golang.org> Reviewed-by: Than McIntosh <thanm@google.com> |
||
|
Wayne Zuo
|
d7ac5d1480 |
cmd/compile: intrinsify math/bits/ReverseBytes{32|64} for 386
The BSWAPL instruction is supported in i486 and newer. https://github.com/golang/go/wiki/MinimumRequirements#386 says we support "All Pentium MMX or later". The Pentium is also referred to as i586, so that we are safe with these instructions. Change-Id: I6dea1f9d864a45bb07c8f8f35a81cfe16cca216c Reviewed-on: https://go-review.googlesource.com/c/go/+/465515 Run-TryBot: Wayne Zuo <wdvxdr@golangcn.org> Reviewed-by: Keith Randall <khr@golang.org> TryBot-Result: Gopher Robot <gobot@golang.org> Reviewed-by: Matthew Dempsky <mdempsky@google.com> Reviewed-by: Keith Randall <khr@google.com> |
||
Archana R
|
a432d89137 |
cmd/compile: add rules to emit SETBC/R instructions on power10
This CL adds rules that replaces instances of ISEL that produce a boolean result based on a condition register by SETBC/SETBCR operations. On Power10 these are convereted to SETBC/SETBCR instructions that use one register instead of 3 registers conventionally used by ISEL and hence reduces register pressure. On loops written specifically to exercise such instances of ISEL extensively, a performance improvement of 2.5% is seen on Power10. Also added verification tests to verify correct generation of SETBC/SETBCR instructions on Power10. Change-Id: Ib719897f09d893de40324440a43052dca026e8fa Reviewed-on: https://go-review.googlesource.com/c/go/+/449795 Reviewed-by: Michael Knyszek <mknyszek@google.com> Reviewed-by: Dmitri Shuralyov <dmitshur@google.com> Run-TryBot: Archana Ravindar <aravind5@in.ibm.com> Reviewed-by: Lynn Boger <laboger@linux.vnet.ibm.com> TryBot-Result: Gopher Robot <gobot@golang.org> |
||
|
Archana R
|
cd1fc87156 |
cmd/compile: intrinsify math/bits/ReverseBytes{16|32|64} for ppc64/power10
This change intrinsifies ReverseBytes{16|32|64} by generating the
corresponding new instructions in Power10: brh, brd and brw and
adds a verification test for the same.
On Power 9 and 8, the .go code performs optimally as it is.
Performance improvement seen on Power10:
ReverseBytes32 1.38ns ± 0% 1.18ns ± 0% -14.2
ReverseBytes64 1.52ns ± 0% 1.11ns ± 0% -26.87
ReverseBytes16 1.41ns ± 1% 1.18ns ± 0% -16.47
Change-Id: I88f127f3ab9ba24a772becc21ad90acfba324b37
Reviewed-on: https://go-review.googlesource.com/c/go/+/446675
Reviewed-by: Lynn Boger <laboger@linux.vnet.ibm.com>
TryBot-Result: Gopher Robot <gobot@golang.org>
Reviewed-by: Dmitri Shuralyov <dmitshur@google.com>
Run-TryBot: Lynn Boger <laboger@linux.vnet.ibm.com>
Reviewed-by: Michael Knyszek <mknyszek@google.com>
|
||
|
Keith Randall
|
6224db9b4d |
cmd/compile: schedule values with no in-block uses later
When scheduling a block, deprioritize values whose results aren't used until subsequent blocks. For #58166, this has the effect of pushing the induction variable increment to the end of the block, past all the other uses of the pre-incremented value. Do this only with optimizations on. Debuggers have a preference for values in source code order, which this CL can degrade. Fixes #58166 Fixes #57976 Change-Id: I40d5885c661b142443c6d4702294c8abe8026c4f Reviewed-on: https://go-review.googlesource.com/c/go/+/463751 Run-TryBot: Keith Randall <khr@golang.org> Reviewed-by: David Chase <drchase@google.com> Reviewed-by: Keith Randall <khr@google.com> TryBot-Result: Gopher Robot <gobot@golang.org> |
||
Jakub Ciolek
|
1fc585dc2f |
cmd/compile: inline known-size memclrNoHeapPointers calls
This patch rewrites known-size calls to memclrNoHeapPointers with an OpZero.
This significantly improves performance and lets some clears get DSE'd.
One of the cases where this applies is zeroing a known-size array, example:
var x [256]int8
...
for a := range x {
x[a] = 0
}
Other cases can be found in the runtime itself where memclrNoHeapPointers is sometimes directly invoked with a constant.
It seems that for some sized-clears on some architectures (AMD64, maybe others) the memcrlNoHeapPointers is more performant than OpZero.
See the issue #56997 for more details.
Benches ARM (M1 Pro):
name old time/op new time/op delta
MemclrKnownSize1-10 2.03ns ± 0% 0.31ns ± 0% -84.69% (p=0.000 n=18+19)
MemclrKnownSize2-10 1.97ns ± 0% 0.31ns ± 0% -84.19% (p=0.000 n=12+19)
MemclrKnownSize4-10 2.02ns ± 0% 0.31ns ± 0% -84.56% (p=0.000 n=12+20)
MemclrKnownSize8-10 2.02ns ± 0% 0.31ns ± 0% -84.59% (p=0.000 n=14+19)
MemclrKnownSize16-10 2.15ns ± 0% 0.31ns ± 0% -85.50% (p=0.000 n=18+19)
MemclrKnownSize32-10 2.48ns ± 0% 0.31ns ± 0% -87.48% (p=0.000 n=20+19)
MemclrKnownSize64-10 1.93ns ± 0% 0.62ns ± 0% -67.88% (p=0.000 n=20+19)
MemclrKnownSize112-10 2.48ns ± 0% 1.80ns ± 0% -27.74% (p=0.000 n=19+20)
MemclrKnownSize128-10 10.0ns ±112% 2.0ns ± 0% -79.76% (p=0.000 n=18+17)
MemclrKnownSize192-10 27.4ns ±103% 2.6ns ± 0% -90.38% (p=0.000 n=16+19)
MemclrKnownSize248-10 9.67ns ±43% 3.26ns ± 0% -66.29% (p=0.000 n=19+19)
MemclrKnownSize256-10 85.4ns ±148% 3.3ns ± 0% -96.18% (p=0.000 n=20+20)
MemclrKnownSize512-10 223ns ±54% 6ns ± 0% -97.42% (p=0.000 n=18+20)
MemclrKnownSize1024-10 216ns ±26% 11ns ± 0% -95.00% (p=0.000 n=18+15)
MemclrKnownSize4096-10 265ns ± 2% 88ns ± 0% -66.84% (p=0.000 n=19+17)
MemclrKnownSize512KiB-10 9.91µs ± 1% 10.23µs ± 2% +3.14% (p=0.000 n=19+19)
[Geo mean] 15.6ns 2.5ns -83.62%
name old speed new speed delta
MemclrKnownSize1-10 493MB/s ± 0% 3216MB/s ± 0% +553.04% (p=0.000 n=18+19)
MemclrKnownSize2-10 1.02GB/s ± 0% 6.43GB/s ± 0% +532.33% (p=0.000 n=16+19)
MemclrKnownSize4-10 1.99GB/s ± 0% 12.86GB/s ± 0% +547.67% (p=0.000 n=18+20)
MemclrKnownSize8-10 3.96GB/s ± 0% 25.72GB/s ± 0% +548.81% (p=0.000 n=19+19)
MemclrKnownSize16-10 7.46GB/s ± 0% 51.43GB/s ± 0% +589.72% (p=0.000 n=20+19)
MemclrKnownSize32-10 12.9GB/s ± 0% 102.9GB/s ± 0% +698.60% (p=0.000 n=20+18)
MemclrKnownSize64-10 33.1GB/s ± 0% 103.0GB/s ± 0% +211.34% (p=0.000 n=19+19)
MemclrKnownSize112-10 45.1GB/s ± 0% 62.4GB/s ± 0% +38.38% (p=0.000 n=19+20)
MemclrKnownSize128-10 13.3GB/s ±107% 63.5GB/s ± 0% +378.03% (p=0.000 n=19+18)
MemclrKnownSize192-10 6.97GB/s ±139% 72.72GB/s ± 0% +943.44% (p=0.000 n=19+19)
MemclrKnownSize248-10 25.9GB/s ±46% 76.1GB/s ± 0% +194.16% (p=0.000 n=20+17)
MemclrKnownSize256-10 8.64GB/s ±196% 78.51GB/s ± 0% +808.19% (p=0.000 n=20+20)
MemclrKnownSize512-10 2.33GB/s ±86% 89.13GB/s ± 0% +3719.50% (p=0.000 n=17+20)
MemclrKnownSize1024-10 4.85GB/s ±32% 94.93GB/s ± 0% +1856.74% (p=0.000 n=18+19)
MemclrKnownSize4096-10 15.4GB/s ± 2% 46.6GB/s ± 0% +201.55% (p=0.000 n=19+18)
MemclrKnownSize512KiB-10 52.9GB/s ± 1% 51.3GB/s ± 2% -3.04% (p=0.000 n=19+19)
[Geo mean] 7.54GB/s 42.86GB/s +468.76%
Intel Alder Lake 12600k:
name old time/op new time/op delta
MemclrKnownSize1-16 0.59ns ± 3% 0.38ns ± 6% -36.00% (p=0.000 n=19+18)
MemclrKnownSize2-16 0.57ns ± 1% 0.19ns ± 5% -66.27% (p=0.000 n=19+19)
MemclrKnownSize4-16 0.66ns ± 2% 0.36ns ±21% -45.12% (p=0.000 n=19+20)
MemclrKnownSize8-16 0.74ns ± 1% 0.30ns ±26% -59.81% (p=0.000 n=18+20)
MemclrKnownSize16-16 1.00ns ± 7% 0.21ns ± 8% -79.51% (p=0.000 n=20+19)
MemclrKnownSize32-16 0.95ns ± 1% 0.40ns ± 1% -57.61% (p=0.000 n=20+18)
MemclrKnownSize64-16 1.20ns ± 2% 0.41ns ± 0% -65.82% (p=0.000 n=20+18)
MemclrKnownSize112-16 1.27ns ± 2% 1.03ns ± 0% -19.35% (p=0.000 n=20+18)
MemclrKnownSize128-16 1.34ns ± 2% 1.03ns ± 0% -23.02% (p=0.000 n=20+20)
MemclrKnownSize192-16 1.92ns ± 2% 1.44ns ± 0% -24.89% (p=0.000 n=20+16)
MemclrKnownSize248-16 2.77ns ± 1% 3.29ns ± 0% +18.81% (p=0.000 n=20+16)
MemclrKnownSize256-16 1.92ns ± 1% 1.86ns ± 0% -3.49% (p=0.000 n=19+15)
MemclrKnownSize512-16 2.81ns ± 2% 3.49ns ± 0% +24.15% (p=0.000 n=20+17)
MemclrKnownSize1024-16 4.02ns ± 1% 6.78ns ± 0% +68.44% (p=0.000 n=20+18)
MemclrKnownSize4096-16 17.2ns ± 2% 14.4ns ± 0% -16.73% (p=0.000 n=20+17)
MemclrKnownSize512KiB-16 6.71µs ± 1% 6.52µs ± 0% -2.85% (p=0.000 n=20+18)
[Geo mean] 2.60ns 1.71ns -34.06%
name old speed new speed delta
MemclrKnownSize1-16 1.71GB/s ± 3% 2.67GB/s ± 6% +56.39% (p=0.000 n=19+18)
MemclrKnownSize2-16 3.52GB/s ± 2% 10.43GB/s ± 6% +196.04% (p=0.000 n=20+20)
MemclrKnownSize4-16 6.06GB/s ± 1% 10.83GB/s ±11% +78.63% (p=0.000 n=19+18)
MemclrKnownSize8-16 10.7GB/s ± 1% 27.0GB/s ±21% +151.49% (p=0.000 n=18+20)
MemclrKnownSize16-16 16.0GB/s ± 8% 78.1GB/s ± 7% +387.24% (p=0.000 n=20+19)
MemclrKnownSize32-16 33.6GB/s ± 1% 79.4GB/s ± 1% +135.89% (p=0.000 n=20+18)
MemclrKnownSize64-16 53.3GB/s ± 2% 155.9GB/s ± 0% +192.58% (p=0.000 n=20+18)
MemclrKnownSize112-16 88.0GB/s ± 2% 109.1GB/s ± 0% +23.97% (p=0.000 n=20+18)
MemclrKnownSize128-16 95.3GB/s ± 2% 123.8GB/s ± 0% +29.88% (p=0.000 n=20+20)
MemclrKnownSize192-16 100GB/s ± 2% 133GB/s ± 0% +33.12% (p=0.000 n=20+17)
MemclrKnownSize248-16 89.7GB/s ± 1% 75.5GB/s ± 0% -15.84% (p=0.000 n=20+19)
MemclrKnownSize256-16 133GB/s ± 1% 138GB/s ± 0% +3.61% (p=0.000 n=19+14)
MemclrKnownSize512-16 182GB/s ± 2% 147GB/s ± 0% -19.46% (p=0.000 n=20+17)
MemclrKnownSize1024-16 254GB/s ± 1% 151GB/s ± 0% -40.64% (p=0.000 n=20+18)
MemclrKnownSize4096-16 237GB/s ± 2% 285GB/s ± 0% +20.09% (p=0.000 n=20+17)
MemclrKnownSize512KiB-16 78.2GB/s ± 1% 80.4GB/s ± 0% +2.93% (p=0.000 n=20+18)
[Geo mean] 42.1GB/s 63.8GB/s +51.53%
compilecmp linux/amd64:
runtime
runtime.(*pallocData).allocAll 85 -> 45 (-47.06%)
runtime.(*pageAlloc).allocRange 942 -> 923 (-2.02%)
runtime.(*pageAlloc).free 798 -> 774 (-3.01%)
runtime.(*pageBits).clearAll 66 -> 20 (-69.70%)
runtime.startCheckmarks 255 -> 246 (-3.53%)
runtime.(*pallocData).freeAll 86 -> 46 (-46.51%)
runtime.(*pallocBits).freeAll 66 -> 20 (-69.70%)
runtime.(*consistentHeapStats).unsafeClear 66 -> 19 (-71.21%)
runtime.newproc1 965 -> 933 (-3.32%)
crypto/rc4
crypto/rc4.(*Cipher).Reset 78 -> 69 (-11.54%)
compress/bzip2
compress/bzip2.(*reader).readBlock 2973 -> 2941 (-1.08%)
image/jpeg
image/jpeg.(*decoder).processDHT 1179 -> 1166 (-1.10%)
index/suffixarray
index/suffixarray.bucketMax_8_32 394 -> 241 (-38.83%)
index/suffixarray.freq_8_32 317 -> 185 (-41.64%)
index/suffixarray.freq_8_64 317 -> 178 (-43.85%)
index/suffixarray.bucketMin_8_32 394 -> 243 (-38.32%)
index/suffixarray.bucketMin_8_64 398 -> 234 (-41.21%)
index/suffixarray.bucketMax_8_64 398 -> 234 (-41.21%)
compress/flate
compress/flate.(*huffmanBitWriter).generateCodegen 965 -> 838 (-13.16%)
compress/flate.(*compressor).reset 429 -> 409 (-4.66%)
cmd/vendor/golang.org/x/sys/unix
cmd/vendor/golang.org/x/sys/unix.(*FdSet).Zero 66 -> 60 (-9.09%)
cmd/vendor/golang.org/x/sys/unix.(*Ifreq).SetInet4Addr 211 -> 129 (-38.86%)
cmd/vendor/golang.org/x/sys/unix.(*Ifreq).SetUint32 98 -> 14 (-85.71%)
cmd/vendor/golang.org/x/sys/unix.(*Ifreq).clear 66 -> 11 (-83.33%)
cmd/vendor/golang.org/x/sys/unix.(*Ifreq).SetUint16 101 -> 15 (-85.15%)
cmd/vendor/golang.org/x/sys/unix.(*CPUSet).Zero 66 -> 60 (-9.09%)
internal/coverage/decodemeta
internal/coverage/decodemeta.(*CoverageMetaFileReader).rdUint64 325 -> 293 (-9.85%)
crypto/tls
crypto/tls.(*halfConn).setTrafficSecret 253 -> 247 (-2.37%)
crypto/tls.(*Conn).readRecordOrCCS 10315 -> 10283 (-0.31%)
crypto/tls.(*halfConn).changeCipherSpec 271 -> 261 (-3.69%)
crypto/tls.(*Conn).writeRecordLocked 1765 -> 1748 (-0.96%)
file before after Δ %
runtime.s 512467 512164 -303 -0.059%
crypto/rc4.s 955 946 -9 -0.942%
compress/bzip2.s 9586 9554 -32 -0.334%
image/jpeg.s 32122 32109 -13 -0.040%
index/suffixarray.s 38547 37644 -903 -2.343%
compress/flate.s 46668 46521 -147 -0.315%
cmd/vendor/golang.org/x/sys/unix.s 118620 118301 -319 -0.269%
internal/coverage/decodemeta.s 7224 7192 -32 -0.443%
crypto/tls.s 288762 288697 -65 -0.023%
cmd/compile/internal/ssa.s 3639799 3640727 +928 +0.025%
total 20790248 20789353 -895 -0.004%
src/runtime benchmarks (Linux Alder Lake 12600k):
name old time/op new time/op delta
MakeChan/Byte-16 26.2ns ± 2% 25.6ns ± 3% -2.05% (p=0.003 n=9+10)
MakeChan/Int-16 33.9ns ± 2% 33.3ns ± 4% -1.99% (p=0.015 n=10+10)
MakeChan/Ptr-16 54.2ns ± 2% 53.7ns ± 1% -0.90% (p=0.016 n=10+9)
MakeChan/Struct/0-16 23.8ns ± 3% 23.4ns ± 1% -1.72% (p=0.009 n=10+8)
MakeChan/Struct/32-16 55.9ns ± 2% 53.9ns ± 1% -3.48% (p=0.000 n=10+10)
MakeChan/Struct/40-16 63.5ns ± 1% 61.1ns ± 2% -3.79% (p=0.000 n=10+9)
ChanNonblocking-16 0.22ns ± 0% 0.22ns ± 0% +0.40% (p=0.011 n=9+8)
SelectUncontended-16 4.63ns ± 1% 4.62ns ± 0% -0.35% (p=0.001 n=10+8)
SelectSyncContended-16 1.58µs ± 2% 1.59µs ± 1% ~ (p=0.540 n=10+10)
SelectAsyncContended-16 290ns ± 0% 291ns ± 0% +0.14% (p=0.012 n=8+9)
SelectNonblock-16 0.95ns ± 1% 0.95ns ± 1% ~ (p=0.546 n=9+9)
ChanUncontended-16 239ns ± 3% 242ns ± 6% ~ (p=0.886 n=9+10)
ChanContended-16 17.7µs ± 1% 18.2µs ± 1% +2.87% (p=0.000 n=10+9)
ChanSync-16 109ns ± 2% 109ns ± 1% ~ (p=0.342 n=10+10)
ChanSyncWork-16 6.55µs ± 1% 6.53µs ± 1% ~ (p=0.101 n=10+10)
ChanProdCons0-16 502ns ± 1% 499ns ± 0% -0.55% (p=0.001 n=10+9)
ChanProdCons10-16 373ns ± 2% 377ns ± 1% ~ (p=0.095 n=10+9)
ChanProdCons100-16 224ns ± 2% 223ns ± 3% ~ (p=0.150 n=9+10)
ChanProdConsWork0-16 491ns ± 1% 484ns ± 0% -1.26% (p=0.000 n=10+9)
ChanProdConsWork10-16 451ns ± 2% 448ns ± 2% ~ (p=0.210 n=8+10)
ChanProdConsWork100-16 406ns ± 0% 407ns ± 1% ~ (p=0.138 n=8+8)
SelectProdCons-16 509ns ± 0% 509ns ± 0% ~ (p=0.917 n=9+9)
ReceiveDataFromClosedChan-16 12.1ns ± 0% 12.1ns ± 0% ~ (p=0.780 n=10+10)
ChanCreation-16 22.6ns ± 1% 22.4ns ± 0% -0.72% (p=0.001 n=10+8)
ChanSem-16 165ns ± 1% 166ns ± 1% +0.72% (p=0.002 n=10+10)
ChanPopular-16 500µs ± 2% 498µs ± 1% ~ (p=0.218 n=10+10)
ChanClosed-16 0.29ns ± 0% 0.29ns ± 0% +0.09% (p=0.019 n=9+8)
CallClosure-16 1.28ns ± 0% 1.27ns ± 0% -0.51% (p=0.000 n=9+9)
CallClosure1-16 1.50ns ± 0% 1.50ns ± 0% ~ (p=0.123 n=9+9)
CallClosure2-16 8.86ns ± 1% 8.86ns ± 3% ~ (p=0.590 n=9+10)
CallClosure3-16 8.75ns ± 2% 8.69ns ± 2% ~ (p=0.247 n=10+10)
CallClosure4-16 8.65ns ± 2% 8.56ns ± 2% ~ (p=0.105 n=10+10)
Complex128DivNormal-16 2.47ns ± 0% 2.47ns ± 0% ~ (p=0.790 n=10+9)
Complex128DivNisNaN-16 4.44ns ± 0% 4.43ns ± 0% ~ (p=0.564 n=10+10)
Complex128DivDisNaN-16 4.48ns ± 0% 4.48ns ± 0% ~ (p=0.101 n=10+10)
Complex128DivNisInf-16 2.58ns ± 0% 2.58ns ± 0% ~ (p=0.808 n=10+10)
Complex128DivDisInf-16 6.30ns ± 0% 6.31ns ± 0% ~ (p=0.305 n=10+10)
SetTypePtr-16 0.73ns ± 1% 0.73ns ± 3% ~ (p=0.644 n=10+10)
SetTypePtr8-16 4.12ns ± 0% 4.12ns ± 0% ~ (p=0.127 n=10+10)
SetTypePtr16-16 4.13ns ± 1% 4.12ns ± 0% ~ (p=0.109 n=10+10)
SetTypePtr32-16 4.12ns ± 0% 4.12ns ± 0% ~ (p=0.203 n=9+10)
SetTypePtr64-16 4.12ns ± 0% 4.12ns ± 0% ~ (p=0.696 n=10+10)
SetTypePtr126-16 6.91ns ± 0% 6.91ns ± 0% ~ (p=0.469 n=10+10)
SetTypePtr128-16 6.66ns ± 0% 6.67ns ± 0% ~ (p=0.246 n=9+10)
SetTypePtrSlice-16 54.1ns ± 1% 54.1ns ± 1% ~ (p=0.509 n=9+10)
SetTypeNode1-16 4.13ns ± 1% 4.12ns ± 0% ~ (p=0.342 n=10+10)
SetTypeNode1Slice-16 10.1ns ± 1% 10.0ns ± 1% -1.18% (p=0.000 n=10+10)
SetTypeNode8-16 4.12ns ± 0% 4.12ns ± 0% ~ (p=0.137 n=8+8)
SetTypeNode8Slice-16 22.6ns ± 0% 22.6ns ± 0% ~ (p=0.423 n=10+10)
SetTypeNode64-16 6.90ns ± 0% 6.91ns ± 0% ~ (p=0.275 n=10+10)
SetTypeNode64Slice-16 173ns ± 0% 173ns ± 0% ~ (p=0.610 n=9+10)
SetTypeNode64Dead-16 5.53ns ± 0% 5.52ns ± 0% ~ (p=0.123 n=10+6)
SetTypeNode64DeadSlice-16 150ns ± 0% 150ns ± 0% ~ (p=0.398 n=10+10)
SetTypeNode124-16 6.90ns ± 0% 6.90ns ± 0% ~ (p=0.779 n=10+10)
SetTypeNode124Slice-16 222ns ± 5% 217ns ± 0% ~ (p=0.302 n=10+10)
SetTypeNode126-16 6.66ns ± 0% 6.66ns ± 0% ~ (p=0.324 n=10+9)
SetTypeNode126Slice-16 218ns ± 0% 218ns ± 0% ~ (p=0.119 n=9+10)
SetTypeNode128-16 9.76ns ± 0% 9.73ns ± 0% -0.31% (p=0.003 n=9+10)
SetTypeNode128Slice-16 279ns ± 0% 278ns ± 0% ~ (p=0.112 n=10+9)
SetTypeNode130-16 9.77ns ± 0% 9.73ns ± 0% -0.33% (p=0.002 n=10+10)
SetTypeNode130Slice-16 284ns ± 0% 284ns ± 0% ~ (p=0.668 n=10+10)
SetTypeNode1024-16 51.2ns ± 0% 51.6ns ± 1% ~ (p=0.080 n=9+9)
SetTypeNode1024Slice-16 1.83µs ± 0% 1.82µs ± 0% ~ (p=0.115 n=10+10)
Allocation-16 4.64µs ± 1% 4.37µs ± 1% -5.69% (p=0.000 n=9+9)
ReadMemStats-16 5.62µs ± 2% 5.55µs ± 5% -1.36% (p=0.050 n=10+10)
WriteBarrier-16 4.95ns ± 3% 4.99ns ± 3% ~ (p=0.255 n=10+10)
BulkWriteBarrier-16 1.69ns ± 2% 1.63ns ± 4% -3.77% (p=0.001 n=10+10)
ScanStackNoLocals-16 12.8ms ± 2% 12.9ms ± 1% +0.72% (p=0.019 n=10+10)
MSpanCountAlloc/bits=64-16 1.65ns ± 0% 1.65ns ± 0% ~ (p=0.124 n=10+10)
MSpanCountAlloc/bits=128-16 2.08ns ± 1% 2.06ns ± 1% -0.87% (p=0.000 n=10+10)
MSpanCountAlloc/bits=256-16 2.71ns ± 1% 2.69ns ± 1% -0.74% (p=0.001 n=10+9)
MSpanCountAlloc/bits=512-16 4.15ns ± 0% 4.23ns ± 2% +2.15% (p=0.000 n=10+10)
MSpanCountAlloc/bits=1024-16 7.89ns ± 1% 7.89ns ± 1% ~ (p=0.867 n=10+10)
Hash5-16 1.93ns ± 1% 2.01ns ± 0% +3.99% (p=0.000 n=10+8)
Hash16-16 2.04ns ± 1% 2.21ns ± 1% +8.61% (p=0.000 n=10+10)
Hash64-16 2.67ns ± 0% 2.67ns ± 0% ~ (p=0.154 n=9+9)
Hash1024-16 16.4ns ± 0% 16.4ns ± 0% +0.17% (p=0.020 n=9+10)
Hash65536-16 886ns ± 0% 885ns ± 0% ~ (p=0.725 n=10+10)
AlignedLoad-16 0.96ns ± 2% 0.95ns ± 3% ~ (p=0.123 n=10+10)
UnalignedLoad-16 0.95ns ± 2% 1.01ns ± 2% +6.31% (p=0.000 n=10+10)
EqEfaceConcrete-16 0.31ns ± 3% 0.33ns ± 5% +8.10% (p=0.000 n=10+10)
EqIfaceConcrete-16 0.31ns ±13% 0.28ns ± 2% -9.23% (p=0.001 n=10+10)
NeEfaceConcrete-16 0.29ns ± 1% 0.31ns ± 7% +5.59% (p=0.010 n=8+8)
NeIfaceConcrete-16 0.28ns ± 2% 0.29ns ± 1% +4.49% (p=0.000 n=9+8)
ConvT2EByteSized/bool-16 0.53ns ± 1% 0.52ns ± 1% -2.18% (p=0.000 n=10+10)
ConvT2EByteSized/uint8-16 0.53ns ± 1% 0.53ns ± 0% +1.22% (p=0.000 n=10+10)
ConvT2ESmall-16 1.13ns ± 0% 1.13ns ± 0% ~ (p=0.774 n=9+9)
ConvT2EUintptr-16 1.03ns ± 0% 1.04ns ± 0% +0.50% (p=0.000 n=10+8)
ConvT2ELarge-16 14.4ns ± 2% 14.4ns ± 1% ~ (p=0.726 n=10+10)
ConvT2ISmall-16 1.13ns ± 0% 1.13ns ± 0% ~ (p=0.693 n=9+10)
ConvT2IUintptr-16 1.03ns ± 0% 1.03ns ± 0% +0.44% (p=0.000 n=10+10)
ConvT2ILarge-16 14.2ns ± 1% 14.4ns ± 1% +0.85% (p=0.007 n=9+10)
ConvI2E-16 0.54ns ± 1% 0.54ns ± 0% -0.39% (p=0.037 n=10+8)
ConvI2I-16 2.68ns ± 0% 2.70ns ± 1% +0.73% (p=0.000 n=9+10)
AssertE2T-16 0.28ns ± 1% 0.39ns ± 5% +37.38% (p=0.000 n=10+10)
AssertE2TLarge-16 0.42ns ± 2% 0.48ns ± 1% +14.92% (p=0.000 n=9+10)
AssertE2I-16 2.67ns ± 0% 2.67ns ± 0% ~ (p=0.352 n=9+9)
AssertI2T-16 0.37ns ± 3% 0.34ns ± 1% -6.16% (p=0.000 n=10+10)
AssertI2I-16 2.67ns ± 0% 2.67ns ± 0% ~ (p=0.286 n=10+10)
AssertI2E-16 0.54ns ± 1% 0.54ns ± 0% -0.94% (p=0.000 n=10+10)
AssertE2E-16 0.41ns ± 0% 0.41ns ± 1% ~ (p=0.880 n=9+9)
AssertE2T2-16 0.41ns ± 1% 0.41ns ± 1% ~ (p=0.725 n=10+10)
AssertE2T2Blank-16 0.24ns ± 5% 0.21ns ± 1% -14.79% (p=0.000 n=10+9)
AssertI2E2-16 0.69ns ± 0% 0.69ns ± 1% ~ (p=0.541 n=10+10)
AssertI2E2Blank-16 0.26ns ± 9% 0.21ns ± 1% -18.86% (p=0.000 n=10+9)
AssertE2E2-16 0.53ns ± 1% 0.53ns ± 1% +0.72% (p=0.004 n=10+10)
AssertE2E2Blank-16 0.23ns ± 4% 0.21ns ± 1% -8.42% (p=0.000 n=10+10)
ConvT2Ezero/zero/16-16 1.13ns ± 0% 1.14ns ± 1% ~ (p=0.583 n=9+10)
ConvT2Ezero/zero/32-16 1.13ns ± 0% 1.13ns ± 0% ~ (p=0.417 n=10+10)
ConvT2Ezero/zero/64-16 1.03ns ± 1% 1.03ns ± 0% ~ (p=0.051 n=10+10)
ConvT2Ezero/zero/str-16 1.03ns ± 0% 1.03ns ± 0% ~ (p=0.132 n=10+10)
ConvT2Ezero/zero/slice-16 1.14ns ± 0% 1.15ns ± 0% +0.49% (p=0.001 n=10+10)
ConvT2Ezero/zero/big-16 123ns ± 1% 123ns ± 1% ~ (p=0.171 n=10+10)
ConvT2Ezero/nonzero/str-16 19.4ns ± 1% 19.3ns ± 3% ~ (p=0.548 n=9+10)
ConvT2Ezero/nonzero/slice-16 22.2ns ± 2% 22.0ns ± 2% ~ (p=0.109 n=10+10)
ConvT2Ezero/nonzero/big-16 123ns ± 1% 123ns ± 1% ~ (p=0.446 n=10+8)
ConvT2Ezero/smallint/16-16 1.13ns ± 0% 1.14ns ± 1% ~ (p=0.362 n=10+10)
ConvT2Ezero/smallint/32-16 1.13ns ± 0% 1.13ns ± 0% ~ (p=0.907 n=10+9)
ConvT2Ezero/smallint/64-16 1.04ns ± 0% 1.03ns ± 0% -0.38% (p=0.002 n=10+10)
ConvT2Ezero/largeint/16-16 6.65ns ± 1% 6.65ns ± 2% ~ (p=0.618 n=10+9)
ConvT2Ezero/largeint/32-16 6.75ns ± 3% 6.63ns ± 2% -1.77% (p=0.015 n=10+10)
ConvT2Ezero/largeint/64-16 9.19ns ± 1% 9.26ns ± 2% ~ (p=0.123 n=10+10)
Malloc8-16 8.66ns ± 1% 8.89ns ± 2% +2.74% (p=0.000 n=10+10)
Malloc16-16 13.7ns ± 1% 13.8ns ± 1% +0.71% (p=0.022 n=10+8)
MallocTypeInfo8-16 11.7ns ± 3% 11.6ns ± 2% ~ (p=0.469 n=10+10)
MallocTypeInfo16-16 18.3ns ± 1% 18.2ns ± 2% ~ (p=0.251 n=9+10)
MallocLargeStruct-16 195ns ± 1% 198ns ± 1% +1.65% (p=0.000 n=9+10)
GoroutineSelect-16 1.10ms ± 1% 1.12ms ± 1% +1.36% (p=0.000 n=10+8)
GoroutineBlocking-16 986µs ± 1% 998µs ± 1% +1.23% (p=0.002 n=10+10)
GoroutineForRange-16 985µs ± 1% 1001µs ± 1% +1.68% (p=0.000 n=10+10)
GoroutineIdle-16 679µs ± 1% 691µs ± 0% +1.74% (p=0.000 n=10+9)
HashStringSpeed-16 5.33ns ± 5% 5.19ns ± 4% ~ (p=0.113 n=9+9)
HashBytesSpeed-16 8.20ns ± 3% 8.24ns ± 1% ~ (p=0.497 n=10+9)
HashInt32Speed-16 4.01ns ± 2% 3.90ns ± 4% -2.63% (p=0.011 n=9+10)
HashInt64Speed-16 3.94ns ± 4% 3.79ns ± 1% -3.74% (p=0.003 n=10+9)
HashStringArraySpeed-16 12.5ns ± 4% 12.3ns ± 1% ~ (p=0.055 n=10+10)
MegMap-16 3.72ns ± 1% 3.73ns ± 1% ~ (p=0.484 n=9+10)
MegOneMap-16 2.28ns ± 1% 2.27ns ± 1% ~ (p=0.287 n=10+10)
MegEqMap-16 22.0µs ± 3% 22.3µs ± 2% +1.48% (p=0.028 n=10+9)
MegEmptyMap-16 0.93ns ± 1% 0.92ns ± 1% -0.52% (p=0.030 n=10+10)
SmallStrMap-16 3.77ns ± 0% 3.77ns ± 0% ~ (p=0.324 n=10+10)
MapStringKeysEight_16-16 3.91ns ± 0% 3.91ns ± 0% ~ (p=0.088 n=9+9)
MapStringKeysEight_32-16 3.58ns ± 1% 3.50ns ± 0% -2.11% (p=0.000 n=10+10)
MapStringKeysEight_64-16 3.58ns ± 1% 3.50ns ± 0% -2.23% (p=0.000 n=10+10)
MapStringKeysEight_1M-16 3.57ns ± 1% 3.50ns ± 0% -1.92% (p=0.000 n=10+10)
IntMap-16 2.89ns ± 1% 2.89ns ± 0% ~ (p=0.381 n=10+10)
MapFirst/1-16 1.60ns ± 1% 1.59ns ± 2% -0.49% (p=0.020 n=10+9)
MapFirst/2-16 1.61ns ± 0% 1.59ns ± 1% -1.17% (p=0.001 n=10+10)
MapFirst/3-16 1.61ns ± 1% 1.59ns ± 1% -1.45% (p=0.000 n=10+10)
MapFirst/4-16 1.60ns ± 1% 1.59ns ± 1% -1.16% (p=0.000 n=10+10)
MapFirst/5-16 1.60ns ± 1% 1.58ns ± 1% -0.98% (p=0.000 n=10+10)
MapFirst/6-16 1.60ns ± 1% 1.59ns ± 1% -0.87% (p=0.001 n=10+10)
MapFirst/7-16 1.60ns ± 1% 1.59ns ± 1% -0.79% (p=0.002 n=10+10)
MapFirst/8-16 1.60ns ± 1% 1.59ns ± 1% -0.67% (p=0.017 n=9+10)
MapFirst/9-16 2.83ns ± 0% 2.83ns ± 0% ~ (p=0.492 n=10+10)
MapFirst/10-16 2.83ns ± 0% 2.84ns ± 0% +0.24% (p=0.017 n=10+10)
MapFirst/11-16 2.83ns ± 0% 2.83ns ± 0% ~ (p=0.445 n=10+10)
MapFirst/12-16 2.83ns ± 0% 2.83ns ± 0% ~ (p=0.564 n=10+10)
MapFirst/13-16 2.83ns ± 0% 2.84ns ± 0% ~ (p=0.175 n=9+10)
MapFirst/14-16 2.83ns ± 0% 2.83ns ± 0% ~ (p=0.322 n=10+9)
MapFirst/15-16 2.83ns ± 0% 2.84ns ± 1% ~ (p=0.209 n=10+10)
MapFirst/16-16 2.83ns ± 1% 2.84ns ± 0% ~ (p=0.238 n=10+10)
MapMid/1-16 1.64ns ± 0% 1.64ns ± 0% ~ (p=0.453 n=10+9)
MapMid/2-16 1.86ns ± 1% 1.86ns ± 0% ~ (p=0.764 n=10+9)
MapMid/3-16 1.86ns ± 0% 1.86ns ± 1% ~ (p=1.000 n=10+10)
MapMid/4-16 2.06ns ± 0% 2.06ns ± 0% -0.27% (p=0.014 n=10+9)
MapMid/5-16 2.06ns ± 0% 2.06ns ± 0% ~ (p=0.075 n=9+10)
MapMid/6-16 2.27ns ± 0% 2.27ns ± 1% ~ (p=0.898 n=10+10)
MapMid/7-16 2.27ns ± 1% 2.26ns ± 0% -0.23% (p=0.049 n=10+10)
MapMid/8-16 2.47ns ± 0% 2.47ns ± 1% ~ (p=0.840 n=10+10)
MapMid/9-16 4.21ns ± 7% 4.13ns ±19% ~ (p=0.315 n=10+10)
MapMid/10-16 4.17ns ± 7% 4.31ns ± 5% +3.37% (p=0.021 n=10+9)
MapMid/11-16 4.18ns ± 7% 4.32ns ± 6% +3.50% (p=0.015 n=10+10)
MapMid/12-16 4.34ns ± 7% 4.30ns ± 5% ~ (p=0.858 n=9+10)
MapMid/13-16 4.25ns ± 6% 4.28ns ± 6% ~ (p=0.489 n=9+9)
MapMid/14-16 3.75ns ±23% 3.90ns ±16% ~ (p=0.353 n=10+10)
MapMid/15-16 3.87ns ±25% 3.95ns ±26% ~ (p=0.315 n=10+10)
MapMid/16-16 4.06ns ±19% 3.94ns ±16% ~ (p=0.796 n=10+10)
MapLast/1-16 1.65ns ± 0% 1.65ns ± 0% ~ (p=0.607 n=10+10)
MapLast/2-16 1.86ns ± 0% 1.86ns ± 0% +0.26% (p=0.029 n=10+10)
MapLast/3-16 2.06ns ± 1% 2.06ns ± 0% ~ (p=0.689 n=8+9)
MapLast/4-16 2.27ns ± 1% 2.26ns ± 0% ~ (p=0.148 n=10+9)
MapLast/5-16 2.47ns ± 0% 2.47ns ± 0% ~ (p=0.385 n=9+10)
MapLast/6-16 2.67ns ± 0% 2.68ns ± 0% ~ (p=0.202 n=9+10)
MapLast/7-16 2.88ns ± 0% 2.88ns ± 0% ~ (p=0.751 n=10+10)
MapLast/8-16 3.08ns ± 0% 3.08ns ± 0% ~ (p=0.826 n=10+9)
MapLast/9-16 4.31ns ± 6% 4.54ns ± 5% ~ (p=0.070 n=9+8)
MapLast/10-16 4.25ns ± 5% 4.42ns ± 6% ~ (p=0.321 n=9+8)
MapLast/11-16 4.59ns ±16% 5.42ns ±44% +17.99% (p=0.019 n=10+10)
MapLast/12-16 5.04ns ±19% 6.11ns ±28% +21.35% (p=0.005 n=9+10)
MapLast/13-16 6.00ns ±35% 5.76ns ± 3% ~ (p=0.173 n=10+8)
MapLast/14-16 4.27ns ± 5% 4.53ns ± 6% +6.14% (p=0.007 n=10+10)
MapLast/15-16 4.41ns ± 1% 4.44ns ± 7% ~ (p=0.515 n=8+10)
MapLast/16-16 4.18ns ± 6% 4.99ns ±18% +19.48% (p=0.000 n=10+10)
MapCycle-16 7.48ns ± 2% 7.46ns ± 1% ~ (p=0.699 n=10+10)
RepeatedLookupStrMapKey32-16 6.98ns ± 3% 6.73ns ± 2% -3.63% (p=0.000 n=10+10)
RepeatedLookupStrMapKey1M-16 14.7µs ± 5% 14.7µs ± 4% ~ (p=0.604 n=9+10)
MakeMap/[Byte]Byte-16 58.5ns ± 1% 58.5ns ± 1% ~ (p=0.780 n=10+9)
MakeMap/[Int]Int-16 113ns ± 0% 113ns ± 1% ~ (p=0.100 n=8+10)
NewEmptyMap-16 2.47ns ± 0% 2.47ns ± 0% ~ (p=0.638 n=10+10)
NewSmallMap-16 11.5ns ± 1% 11.6ns ± 0% +1.18% (p=0.000 n=10+10)
MapIter-16 42.2ns ± 0% 42.8ns ± 1% +1.50% (p=0.000 n=10+10)
MapIterEmpty-16 1.85ns ± 0% 1.85ns ± 0% ~ (p=0.651 n=10+10)
SameLengthMap-16 1.85ns ± 1% 1.85ns ± 0% ~ (p=0.247 n=10+10)
BigKeyMap-16 7.18ns ± 1% 7.42ns ± 4% +3.33% (p=0.004 n=10+10)
BigValMap-16 7.03ns ± 2% 7.19ns ± 1% +2.33% (p=0.000 n=10+9)
SmallKeyMap-16 5.32ns ± 1% 5.24ns ± 1% -1.41% (p=0.000 n=10+10)
MapPopulate/1-16 6.30ns ± 0% 6.41ns ± 1% +1.81% (p=0.000 n=8+10)
MapPopulate/10-16 239ns ± 2% 234ns ± 2% -2.05% (p=0.001 n=9+10)
MapPopulate/100-16 4.19µs ± 2% 4.22µs ± 2% ~ (p=0.171 n=10+10)
MapPopulate/1000-16 52.3µs ± 1% 52.5µs ± 1% ~ (p=0.133 n=9+10)
MapPopulate/10000-16 459µs ± 1% 466µs ± 2% +1.45% (p=0.005 n=10+10)
MapPopulate/100000-16 4.22ms ± 2% 4.25ms ± 2% ~ (p=0.393 n=10+10)
ComplexAlgMap-16 12.5ns ± 1% 12.4ns ± 1% -0.95% (p=0.022 n=10+10)
GoMapClear/Reflexive/1-16 9.61ns ± 1% 9.58ns ± 0% -0.27% (p=0.027 n=10+10)
GoMapClear/Reflexive/10-16 10.0ns ± 1% 10.0ns ± 1% ~ (p=0.648 n=9+9)
GoMapClear/Reflexive/100-16 31.4ns ± 0% 31.4ns ± 1% ~ (p=0.305 n=9+10)
GoMapClear/Reflexive/1000-16 147ns ± 0% 149ns ± 2% +1.21% (p=0.000 n=10+10)
GoMapClear/Reflexive/10000-16 3.99µs ± 0% 4.00µs ± 0% +0.21% (p=0.018 n=9+10)
GoMapClear/NonReflexive/1-16 41.4ns ± 2% 41.7ns ± 1% +0.55% (p=0.043 n=9+10)
GoMapClear/NonReflexive/10-16 50.3ns ± 1% 50.9ns ± 1% +1.16% (p=0.000 n=10+10)
GoMapClear/NonReflexive/100-16 125ns ± 0% 126ns ± 0% +0.96% (p=0.000 n=8+10)
GoMapClear/NonReflexive/1000-16 1.08µs ± 0% 1.08µs ± 1% ~ (p=0.097 n=10+10)
GoMapClear/NonReflexive/10000-16 8.18µs ± 2% 8.10µs ± 0% -0.91% (p=0.019 n=10+8)
MapStringConversion/32/simple-16 4.66ns ± 1% 4.69ns ± 3% ~ (p=0.905 n=9+10)
MapStringConversion/32/struct-16 4.65ns ± 3% 4.94ns ± 2% +6.23% (p=0.000 n=10+10)
MapStringConversion/32/array-16 4.69ns ± 3% 4.72ns ± 3% ~ (p=0.631 n=10+10)
MapStringConversion/64/simple-16 4.14ns ± 0% 4.14ns ± 1% ~ (p=0.342 n=10+10)
MapStringConversion/64/struct-16 4.13ns ± 0% 4.13ns ± 0% ~ (p=0.809 n=10+10)
MapStringConversion/64/array-16 4.13ns ± 1% 4.13ns ± 1% ~ (p=0.752 n=10+10)
MapInterfaceString-16 7.90ns ±23% 8.51ns ±33% ~ (p=0.604 n=9+10)
MapInterfacePtr-16 7.68ns ±29% 7.10ns ±36% ~ (p=0.353 n=10+10)
NewEmptyMapHintLessThan8-16 3.70ns ± 0% 3.70ns ± 0% ~ (p=0.209 n=10+10)
NewEmptyMapHintGreaterThan8-16 270ns ± 1% 272ns ± 1% +0.71% (p=0.005 n=10+9)
MapPop100-16 6.45µs ± 0% 6.50µs ± 1% +0.77% (p=0.000 n=10+10)
MapPop1000-16 114µs ± 1% 114µs ± 1% ~ (p=0.190 n=10+10)
MapPop10000-16 2.28ms ± 2% 2.28ms ± 2% ~ (p=0.912 n=10+10)
MapAssign/Int32/256-16 4.75ns ± 2% 4.82ns ± 4% ~ (p=0.101 n=10+10)
MapAssign/Int32/65536-16 16.4ns ± 1% 16.7ns ± 0% +1.44% (p=0.000 n=10+9)
MapAssign/Int64/256-16 4.79ns ± 5% 4.79ns ± 1% ~ (p=0.616 n=10+8)
MapAssign/Int64/65536-16 17.1ns ± 1% 16.8ns ± 0% -1.28% (p=0.000 n=10+8)
MapAssign/Str/256-16 6.07ns ± 6% 6.24ns ± 2% +2.84% (p=0.035 n=10+9)
MapAssign/Str/65536-16 21.4ns ± 0% 21.4ns ± 3% ~ (p=0.300 n=7+10)
MapOperatorAssign/Int32/256-16 4.82ns ± 3% 4.81ns ± 3% ~ (p=0.684 n=10+10)
MapOperatorAssign/Int32/65536-16 16.8ns ± 1% 16.5ns ± 1% -1.68% (p=0.000 n=9+10)
MapOperatorAssign/Int64/256-16 4.74ns ± 1% 4.77ns ± 3% ~ (p=0.563 n=10+9)
MapOperatorAssign/Int64/65536-16 16.9ns ± 1% 17.2ns ± 1% +1.88% (p=0.000 n=10+10)
MapOperatorAssign/Str/256-16 1.09µs ± 1% 1.10µs ± 2% ~ (p=0.210 n=10+10)
MapOperatorAssign/Str/65536-16 184ns ± 9% 184ns ± 8% ~ (p=0.922 n=10+9)
MapAppendAssign/Int32/256-16 13.8ns ±10% 14.4ns ±11% ~ (p=0.190 n=10+10)
MapAppendAssign/Int32/65536-16 28.9ns ± 5% 30.7ns ± 6% +6.13% (p=0.001 n=9+10)
MapAppendAssign/Int64/256-16 14.5ns ±12% 13.8ns ± 8% -5.02% (p=0.037 n=10+10)
MapAppendAssign/Int64/65536-16 30.9ns ± 1% 30.4ns ± 2% -1.56% (p=0.001 n=10+10)
MapAppendAssign/Str/256-16 30.2ns ± 6% 30.0ns ±10% ~ (p=0.645 n=10+10)
MapAppendAssign/Str/65536-16 44.5ns ± 4% 46.8ns ± 3% +5.17% (p=0.001 n=8+9)
MapDelete/Int32/100-16 18.7ns ± 0% 18.7ns ± 0% -0.27% (p=0.017 n=10+10)
MapDelete/Int32/1000-16 17.6ns ± 1% 17.5ns ± 1% -0.85% (p=0.000 n=9+10)
MapDelete/Int32/10000-16 18.7ns ± 0% 18.3ns ± 1% -1.92% (p=0.000 n=10+10)
MapDelete/Int64/100-16 19.1ns ± 0% 19.2ns ± 0% +0.68% (p=0.000 n=10+9)
MapDelete/Int64/1000-16 17.7ns ± 2% 18.3ns ± 1% +3.00% (p=0.000 n=10+10)
MapDelete/Int64/10000-16 18.8ns ± 1% 19.2ns ± 0% +2.01% (p=0.000 n=10+9)
MapDelete/Str/100-16 26.5ns ± 0% 26.4ns ± 1% -0.73% (p=0.000 n=10+10)
MapDelete/Str/1000-16 23.5ns ± 2% 23.4ns ± 1% ~ (p=0.425 n=10+10)
MapDelete/Str/10000-16 25.1ns ± 0% 25.1ns ± 1% +0.28% (p=0.037 n=10+10)
MapDelete/Pointer/100-16 20.6ns ± 1% 20.6ns ± 0% ~ (p=0.117 n=10+10)
MapDelete/Pointer/1000-16 19.2ns ± 1% 19.4ns ± 1% +0.97% (p=0.004 n=10+10)
MapDelete/Pointer/10000-16 20.0ns ± 0% 20.1ns ± 1% +0.52% (p=0.022 n=10+10)
Memmove/0-16 0.21ns ± 2% 0.21ns ± 1% ~ (p=0.671 n=10+10)
Memmove/1-16 0.93ns ± 0% 0.93ns ± 0% +0.21% (p=0.034 n=10+10)
Memmove/2-16 0.93ns ± 0% 0.93ns ± 0% ~ (p=0.101 n=10+10)
Memmove/3-16 0.93ns ± 1% 0.93ns ± 1% +0.49% (p=0.004 n=10+10)
Memmove/4-16 1.03ns ± 0% 1.03ns ± 0% ~ (p=0.260 n=10+10)
Memmove/5-16 1.13ns ± 0% 1.13ns ± 0% +0.20% (p=0.034 n=10+10)
Memmove/6-16 1.13ns ± 0% 1.13ns ± 1% ~ (p=0.126 n=10+10)
Memmove/7-16 1.13ns ± 0% 1.13ns ± 1% +0.22% (p=0.028 n=10+10)
Memmove/8-16 1.13ns ± 0% 1.13ns ± 0% ~ (p=0.545 n=9+10)
Memmove/9-16 1.25ns ± 0% 1.35ns ± 0% +7.98% (p=0.000 n=10+10)
Memmove/10-16 1.25ns ± 0% 1.35ns ± 0% +7.96% (p=0.000 n=9+9)
Memmove/11-16 1.25ns ± 0% 1.35ns ± 0% +8.53% (p=0.000 n=10+9)
Memmove/12-16 1.25ns ± 0% 1.35ns ± 1% +8.24% (p=0.000 n=10+10)
Memmove/13-16 1.25ns ± 0% 1.34ns ± 0% +7.75% (p=0.000 n=10+10)
Memmove/14-16 1.25ns ± 0% 1.35ns ± 1% +8.28% (p=0.000 n=10+9)
Memmove/15-16 1.25ns ± 0% 1.35ns ± 0% +8.07% (p=0.000 n=10+9)
Memmove/16-16 1.25ns ± 0% 1.35ns ± 1% +8.35% (p=0.000 n=9+10)
Memmove/32-16 1.34ns ± 0% 1.36ns ± 1% +1.22% (p=0.000 n=10+10)
Memmove/64-16 1.45ns ± 0% 1.64ns ± 0% +13.07% (p=0.000 n=10+9)
Memmove/128-16 1.86ns ± 0% 2.02ns ± 0% +8.64% (p=0.000 n=10+10)
Memmove/256-16 2.47ns ± 0% 2.49ns ± 1% +1.14% (p=0.000 n=10+10)
Memmove/512-16 3.96ns ± 1% 3.96ns ± 0% ~ (p=0.182 n=10+10)
Memmove/1024-16 5.90ns ± 1% 5.87ns ± 1% ~ (p=0.258 n=9+9)
Memmove/2048-16 9.62ns ± 1% 9.62ns ± 2% ~ (p=0.963 n=8+9)
Memmove/4096-16 16.4ns ± 0% 17.1ns ± 4% +4.19% (p=0.003 n=8+9)
MemmoveOverlap/32-16 1.62ns ± 1% 1.68ns ± 1% +3.53% (p=0.000 n=10+10)
MemmoveOverlap/64-16 1.64ns ± 0% 1.65ns ± 0% +0.29% (p=0.002 n=9+9)
MemmoveOverlap/128-16 2.06ns ± 0% 2.06ns ± 0% ~ (p=0.070 n=10+10)
MemmoveOverlap/256-16 2.67ns ± 0% 2.67ns ± 0% +0.26% (p=0.012 n=10+10)
MemmoveOverlap/512-16 6.20ns ±18% 5.74ns ± 0% ~ (p=0.645 n=10+8)
MemmoveOverlap/1024-16 7.28ns ± 0% 7.30ns ± 0% +0.28% (p=0.006 n=8+10)
MemmoveOverlap/2048-16 11.9ns ± 0% 12.0ns ± 1% +0.37% (p=0.014 n=9+9)
MemmoveOverlap/4096-16 23.3ns ± 1% 23.1ns ± 1% -0.84% (p=0.000 n=8+10)
MemmoveUnalignedDst/0-16 1.03ns ± 0% 1.03ns ± 0% +0.19% (p=0.007 n=10+10)
MemmoveUnalignedDst/1-16 1.24ns ± 0% 1.25ns ± 1% +0.52% (p=0.022 n=10+10)
MemmoveUnalignedDst/2-16 1.23ns ± 0% 1.23ns ± 0% ~ (p=0.051 n=10+10)
MemmoveUnalignedDst/3-16 1.23ns ± 0% 1.23ns ± 0% +0.14% (p=0.006 n=9+9)
MemmoveUnalignedDst/4-16 1.23ns ± 0% 1.24ns ± 1% +0.37% (p=0.004 n=10+10)
MemmoveUnalignedDst/5-16 1.35ns ± 0% 1.35ns ± 0% ~ (p=0.075 n=10+10)
MemmoveUnalignedDst/6-16 1.34ns ± 0% 1.34ns ± 0% ~ (p=0.779 n=10+10)
MemmoveUnalignedDst/7-16 1.34ns ± 0% 1.34ns ± 0% ~ (p=1.000 n=10+10)
MemmoveUnalignedDst/8-16 1.34ns ± 0% 1.35ns ± 1% +0.39% (p=0.024 n=10+10)
MemmoveUnalignedDst/9-16 1.44ns ± 0% 1.44ns ± 0% ~ (p=0.849 n=10+10)
MemmoveUnalignedDst/10-16 1.44ns ± 0% 1.44ns ± 0% ~ (p=0.255 n=10+10)
MemmoveUnalignedDst/11-16 1.44ns ± 0% 1.44ns ± 0% ~ (p=0.304 n=10+10)
MemmoveUnalignedDst/12-16 1.44ns ± 0% 1.44ns ± 0% ~ (p=0.672 n=10+10)
MemmoveUnalignedDst/13-16 1.44ns ± 0% 1.44ns ± 0% ~ (p=0.435 n=10+10)
MemmoveUnalignedDst/14-16 1.44ns ± 0% 1.44ns ± 0% ~ (p=0.340 n=10+10)
MemmoveUnalignedDst/15-16 1.44ns ± 0% 1.44ns ± 0% ~ (p=0.911 n=10+9)
MemmoveUnalignedDst/16-16 1.44ns ± 0% 1.44ns ± 0% ~ (p=0.074 n=10+10)
MemmoveUnalignedDst/32-16 1.62ns ± 0% 1.63ns ± 0% ~ (p=0.059 n=10+10)
MemmoveUnalignedDst/64-16 1.65ns ± 0% 1.65ns ± 0% ~ (p=0.234 n=10+10)
MemmoveUnalignedDst/128-16 2.06ns ± 0% 2.06ns ± 0% ~ (p=0.709 n=10+9)
MemmoveUnalignedDst/256-16 3.69ns ± 0% 3.70ns ± 0% ~ (p=0.144 n=10+10)
MemmoveUnalignedDst/512-16 4.15ns ± 1% 4.14ns ± 0% ~ (p=0.778 n=10+8)
MemmoveUnalignedDst/1024-16 7.52ns ± 0% 7.53ns ± 1% ~ (p=0.650 n=9+9)
MemmoveUnalignedDst/2048-16 12.9ns ± 0% 12.9ns ± 1% ~ (p=0.548 n=8+8)
MemmoveUnalignedDst/4096-16 25.4ns ± 0% 25.4ns ± 0% ~ (p=0.947 n=9+9)
MemmoveUnalignedDstOverlap/32-16 4.08ns ± 0% 4.09ns ± 0% ~ (p=0.360 n=10+10)
MemmoveUnalignedDstOverlap/64-16 4.56ns ± 0% 4.56ns ± 0% ~ (p=0.705 n=10+9)
MemmoveUnalignedDstOverlap/128-16 4.67ns ± 0% 4.67ns ± 0% ~ (p=0.397 n=10+10)
MemmoveUnalignedDstOverlap/256-16 5.08ns ± 0% 5.08ns ± 0% ~ (p=0.159 n=10+9)
MemmoveUnalignedDstOverlap/512-16 8.45ns ± 5% 8.19ns ± 0% -3.10% (p=0.021 n=10+9)
MemmoveUnalignedDstOverlap/1024-16 9.55ns ± 0% 9.56ns ± 0% ~ (p=0.221 n=8+8)
MemmoveUnalignedDstOverlap/2048-16 14.0ns ± 0% 14.0ns ± 1% ~ (p=0.200 n=10+9)
MemmoveUnalignedDstOverlap/4096-16 26.5ns ± 0% 26.5ns ± 0% ~ (p=0.458 n=10+9)
MemmoveUnalignedSrc/0-16 1.02ns ± 1% 0.99ns ± 1% -2.67% (p=0.000 n=10+9)
MemmoveUnalignedSrc/1-16 1.13ns ± 0% 1.13ns ± 1% -0.25% (p=0.027 n=10+9)
MemmoveUnalignedSrc/2-16 1.13ns ± 1% 1.13ns ± 0% -0.28% (p=0.012 n=10+9)
MemmoveUnalignedSrc/3-16 1.24ns ± 1% 1.23ns ± 0% -0.25% (p=0.022 n=9+10)
MemmoveUnalignedSrc/4-16 1.24ns ± 0% 1.23ns ± 1% ~ (p=0.118 n=9+10)
MemmoveUnalignedSrc/5-16 1.34ns ± 0% 1.34ns ± 1% ~ (p=0.564 n=8+10)
MemmoveUnalignedSrc/6-16 1.34ns ± 0% 1.34ns ± 0% -0.39% (p=0.000 n=10+10)
MemmoveUnalignedSrc/7-16 1.34ns ± 0% 1.34ns ± 0% ~ (p=0.235 n=10+10)
MemmoveUnalignedSrc/8-16 1.34ns ± 0% 1.34ns ± 0% -0.37% (p=0.002 n=10+9)
MemmoveUnalignedSrc/9-16 1.44ns ± 0% 1.44ns ± 0% ~ (p=0.579 n=10+9)
MemmoveUnalignedSrc/10-16 1.44ns ± 0% 1.44ns ± 0% ~ (p=0.534 n=10+9)
MemmoveUnalignedSrc/11-16 1.44ns ± 0% 1.44ns ± 1% ~ (p=0.415 n=10+10)
MemmoveUnalignedSrc/12-16 1.44ns ± 0% 1.44ns ± 0% ~ (p=0.218 n=10+10)
MemmoveUnalignedSrc/13-16 1.44ns ± 0% 1.44ns ± 1% ~ (p=0.693 n=10+10)
MemmoveUnalignedSrc/14-16 1.44ns ± 0% 1.44ns ± 0% ~ (p=0.901 n=10+10)
MemmoveUnalignedSrc/15-16 1.44ns ± 0% 1.44ns ± 0% ~ (p=0.379 n=10+10)
MemmoveUnalignedSrc/16-16 1.44ns ± 1% 1.44ns ± 0% ~ (p=0.538 n=10+10)
MemmoveUnalignedSrc/32-16 1.60ns ± 1% 1.60ns ± 0% ~ (p=0.491 n=10+10)
MemmoveUnalignedSrc/64-16 1.65ns ± 0% 1.65ns ± 0% ~ (p=0.564 n=10+10)
MemmoveUnalignedSrc/128-16 2.09ns ± 0% 2.09ns ± 0% ~ (p=0.497 n=10+9)
MemmoveUnalignedSrc/256-16 2.70ns ± 0% 2.78ns ± 1% +2.81% (p=0.000 n=10+10)
MemmoveUnalignedSrc/512-16 4.31ns ± 0% 4.30ns ± 0% -0.26% (p=0.031 n=8+9)
MemmoveUnalignedSrc/1024-16 7.28ns ± 0% 7.21ns ± 1% -1.05% (p=0.000 n=8+10)
MemmoveUnalignedSrc/2048-16 13.0ns ± 0% 13.0ns ± 0% ~ (p=0.180 n=9+8)
MemmoveUnalignedSrc/4096-16 25.4ns ± 0% 25.3ns ± 1% ~ (p=0.054 n=10+10)
MemmoveUnalignedSrcOverlap/32-16 4.04ns ± 0% 4.06ns ± 0% +0.62% (p=0.000 n=9+10)
MemmoveUnalignedSrcOverlap/64-16 4.12ns ± 0% 4.12ns ± 0% ~ (p=0.421 n=10+10)
MemmoveUnalignedSrcOverlap/128-16 4.53ns ± 0% 4.52ns ± 0% ~ (p=0.251 n=10+10)
MemmoveUnalignedSrcOverlap/256-16 6.17ns ± 0% 6.15ns ± 0% -0.35% (p=0.000 n=10+9)
MemmoveUnalignedSrcOverlap/512-16 7.43ns ± 0% 7.44ns ± 0% ~ (p=0.524 n=9+8)
MemmoveUnalignedSrcOverlap/1024-16 8.94ns ± 0% 8.94ns ± 0% ~ (p=0.419 n=8+8)
MemmoveUnalignedSrcOverlap/2048-16 13.2ns ± 0% 14.5ns ±21% ~ (p=0.107 n=8+10)
MemmoveUnalignedSrcOverlap/4096-16 25.6ns ± 0% 25.6ns ± 1% ~ (p=0.650 n=9+9)
Memclr/5-16 0.86ns ± 1% 0.86ns ± 2% ~ (p=0.531 n=9+9)
Memclr/16-16 1.04ns ± 0% 1.04ns ± 0% +0.32% (p=0.013 n=9+10)
Memclr/64-16 1.23ns ± 0% 1.26ns ± 0% +2.28% (p=0.000 n=10+10)
Memclr/256-16 2.27ns ± 0% 2.27ns ± 0% ~ (p=0.127 n=10+10)
Memclr/4096-16 17.1ns ± 1% 17.3ns ± 0% +0.88% (p=0.000 n=10+10)
Memclr/65536-16 821ns ± 0% 822ns ± 0% ~ (p=0.516 n=10+10)
Memclr/1M-16 14.1µs ± 1% 14.0µs ± 1% ~ (p=0.516 n=10+10)
Memclr/4M-16 86.1µs ± 1% 85.9µs ± 0% ~ (p=0.123 n=10+10)
Memclr/8M-16 174µs ± 2% 173µs ± 0% ~ (p=0.408 n=10+8)
Memclr/16M-16 385µs ± 4% 387µs ± 0% ~ (p=0.173 n=10+8)
Memclr/64M-16 2.18ms ± 0% 2.19ms ± 0% ~ (p=0.113 n=10+9)
GoMemclr/5-16 0.82ns ± 0% 0.82ns ± 0% ~ (p=0.346 n=9+10)
GoMemclr/16-16 1.02ns ± 0% 1.02ns ± 0% +0.22% (p=0.003 n=10+8)
GoMemclr/64-16 1.14ns ± 0% 1.14ns ± 0% ~ (p=0.948 n=10+9)
GoMemclr/256-16 2.06ns ± 0% 2.06ns ± 0% ~ (p=0.868 n=10+10)
MemclrRange/1K_2K-16 457ns ± 0% 428ns ± 1% -6.38% (p=0.000 n=10+10)
MemclrRange/2K_8K-16 1.46µs ± 0% 1.46µs ± 0% ~ (p=0.700 n=10+10)
MemclrRange/4K_16K-16 1.16µs ± 0% 1.16µs ± 0% ~ (p=0.567 n=9+10)
MemclrRange/160K_228K-16 20.7µs ± 0% 20.7µs ± 0% ~ (p=0.160 n=10+10)
ClearFat7-16 0.38ns ± 5% 0.21ns ± 1% -45.79% (p=0.000 n=9+10)
ClearFat8-16 0.21ns ± 3% 0.12ns ± 2% -44.16% (p=0.000 n=8+9)
ClearFat11-16 0.35ns ± 3% 0.21ns ± 1% -40.46% (p=0.000 n=9+9)
ClearFat12-16 0.23ns ± 9% 0.21ns ± 1% -10.23% (p=0.000 n=10+9)
ClearFat13-16 0.22ns ± 6% 0.21ns ± 2% -6.53% (p=0.000 n=10+10)
ClearFat14-16 0.22ns ± 4% 0.21ns ± 1% -5.97% (p=0.000 n=10+10)
ClearFat15-16 0.22ns ± 4% 0.21ns ± 1% -6.96% (p=0.000 n=10+9)
ClearFat16-16 0.19ns ± 9% 0.12ns ± 6% -34.89% (p=0.000 n=9+10)
ClearFat24-16 0.23ns ± 6% 0.21ns ± 1% -10.26% (p=0.000 n=10+9)
ClearFat32-16 0.22ns ± 5% 0.21ns ± 2% -5.31% (p=0.000 n=10+10)
ClearFat40-16 0.34ns ± 4% 0.62ns ± 1% +83.00% (p=0.000 n=10+10)
ClearFat48-16 0.33ns ± 2% 0.41ns ± 0% +26.71% (p=0.000 n=10+10)
ClearFat56-16 0.41ns ± 1% 0.41ns ± 0% ~ (p=0.838 n=10+10)
ClearFat64-16 0.41ns ± 0% 0.41ns ± 0% ~ (p=0.178 n=10+8)
ClearFat72-16 0.82ns ± 0% 0.82ns ± 0% ~ (p=0.669 n=10+10)
ClearFat128-16 1.04ns ± 0% 1.04ns ± 0% ~ (p=0.679 n=10+10)
ClearFat256-16 1.86ns ± 0% 1.86ns ± 0% ~ (p=0.066 n=9+10)
ClearFat512-16 3.50ns ± 0% 3.50ns ± 0% ~ (p=0.626 n=10+10)
ClearFat1024-16 6.79ns ± 0% 6.79ns ± 0% ~ (p=0.986 n=10+10)
ClearFat1032-16 13.6ns ± 0% 13.6ns ± 0% +0.13% (p=0.044 n=10+10)
ClearFat1040-16 10.3ns ± 0% 10.3ns ± 0% ~ (p=0.175 n=10+9)
CopyFat7-16 0.37ns ±13% 0.25ns ± 1% -31.74% (p=0.000 n=10+9)
CopyFat8-16 0.17ns ± 1% 0.17ns ± 2% +1.35% (p=0.004 n=9+9)
CopyFat11-16 0.26ns ± 1% 0.30ns ± 3% +12.58% (p=0.000 n=9+10)
CopyFat12-16 0.28ns ± 2% 0.26ns ± 1% -5.66% (p=0.000 n=9+9)
CopyFat13-16 0.26ns ± 0% 0.28ns ± 4% +7.35% (p=0.000 n=8+10)
CopyFat14-16 0.29ns ± 6% 0.26ns ± 2% -10.46% (p=0.000 n=10+9)
CopyFat15-16 0.26ns ± 1% 0.30ns ± 6% +14.12% (p=0.000 n=8+10)
CopyFat16-16 0.21ns ± 1% 0.21ns ± 0% ~ (p=0.426 n=8+8)
CopyFat24-16 0.29ns ± 3% 0.25ns ± 1% -12.27% (p=0.000 n=9+10)
CopyFat32-16 0.26ns ± 4% 0.29ns ± 4% +11.71% (p=0.000 n=10+10)
CopyFat64-16 0.46ns ± 8% 0.42ns ± 1% -8.37% (p=0.002 n=10+10)
CopyFat72-16 0.82ns ± 0% 0.82ns ± 0% ~ (p=0.563 n=10+10)
CopyFat128-16 1.53ns ± 0% 1.54ns ± 0% +0.62% (p=0.000 n=10+10)
CopyFat256-16 2.68ns ± 0% 2.65ns ± 1% -1.23% (p=0.000 n=10+10)
CopyFat512-16 4.93ns ± 1% 5.19ns ± 3% +5.16% (p=0.000 n=9+9)
CopyFat520-16 6.99ns ± 0% 6.99ns ± 0% ~ (p=0.539 n=10+10)
CopyFat1024-16 11.5ns ± 1% 9.8ns ± 1% -14.98% (p=0.000 n=9+10)
CopyFat1032-16 13.6ns ± 0% 13.6ns ± 0% ~ (p=0.728 n=10+10)
CopyFat1040-16 11.0ns ± 0% 11.1ns ± 0% +0.53% (p=0.000 n=10+10)
Issue18740/2byte-16 10.1µs ± 0% 10.1µs ± 0% ~ (p=0.342 n=10+10)
Issue18740/4byte-16 2.34µs ± 0% 2.35µs ± 0% +0.30% (p=0.002 n=10+8)
Issue18740/8byte-16 1.28µs ± 0% 1.28µs ± 0% +0.32% (p=0.000 n=9+10)
Finalizer-16 345µs ± 1% 336µs ± 0% -2.55% (p=0.000 n=10+9)
FinalizerRun-16 450ns ± 3% 420ns ± 1% -6.65% (p=0.000 n=10+10)
PallocBitsSummarize/Unpacked00-16 2.88ns ± 0% 2.88ns ± 0% ~ (p=0.358 n=10+10)
PallocBitsSummarize/UnpackedFFFFFFFFFFFFFFFF-16 15.2ns ± 0% 15.2ns ± 0% ~ (p=0.925 n=10+10)
PallocBitsSummarize/UnpackedAA-16 16.4ns ± 0% 16.3ns ± 0% ~ (p=0.113 n=9+9)
PallocBitsSummarize/UnpackedAAAAAAAAAAAAAAAA-16 16.5ns ± 0% 16.6ns ± 0% ~ (p=0.238 n=10+10)
PallocBitsSummarize/Unpacked80000000AAAAAAAA-16 37.8ns ± 1% 36.4ns ± 0% -3.70% (p=0.000 n=10+9)
PallocBitsSummarize/UnpackedAAAAAAAA00000001-16 41.8ns ± 1% 39.9ns ± 0% -4.68% (p=0.000 n=9+10)
PallocBitsSummarize/UnpackedBBBBBBBBBBBBBBBB-16 18.3ns ± 0% 18.3ns ± 0% ~ (p=0.781 n=10+10)
PallocBitsSummarize/Unpacked80000000BBBBBBBB-16 38.8ns ± 1% 38.1ns ± 0% -1.78% (p=0.000 n=9+10)
PallocBitsSummarize/UnpackedBBBBBBBB00000001-16 37.5ns ± 0% 36.1ns ± 1% -3.88% (p=0.000 n=8+10)
PallocBitsSummarize/UnpackedCCCCCCCCCCCCCCCC-16 21.8ns ± 0% 21.9ns ± 0% +0.20% (p=0.018 n=10+9)
PallocBitsSummarize/Unpacked4444444444444444-16 21.8ns ± 0% 21.9ns ± 0% +0.20% (p=0.029 n=10+9)
PallocBitsSummarize/Unpacked4040404040404040-16 26.5ns ± 0% 26.5ns ± 0% -0.24% (p=0.001 n=9+10)
PallocBitsSummarize/Unpacked4000400040004000-16 33.4ns ± 1% 31.3ns ± 0% -6.20% (p=0.000 n=9+10)
PallocBitsSummarize/Unpacked1000404044CCAAFF-16 36.4ns ± 1% 35.9ns ± 0% -1.50% (p=0.000 n=10+10)
FindBitRange64/Pattern00Size2-16 0.34ns ± 1% 0.35ns ± 1% +3.80% (p=0.000 n=10+9)
FindBitRange64/Pattern00Size8-16 0.70ns ± 1% 0.70ns ± 0% -0.68% (p=0.000 n=10+10)
FindBitRange64/Pattern00Size32-16 0.70ns ± 1% 0.69ns ± 0% -0.86% (p=0.001 n=10+8)
FindBitRange64/PatternFFFFFFFFFFFFFFFFSize2-16 0.34ns ± 1% 0.35ns ± 1% +4.45% (p=0.000 n=9+8)
FindBitRange64/PatternFFFFFFFFFFFFFFFFSize8-16 1.54ns ± 0% 1.54ns ± 1% ~ (p=0.914 n=9+9)
FindBitRange64/PatternFFFFFFFFFFFFFFFFSize32-16 2.78ns ± 0% 2.78ns ± 0% ~ (p=0.295 n=9+10)
FindBitRange64/PatternAASize2-16 0.34ns ± 2% 0.35ns ± 2% +4.61% (p=0.000 n=10+10)
FindBitRange64/PatternAASize8-16 0.70ns ± 1% 0.70ns ± 1% -0.82% (p=0.005 n=10+10)
FindBitRange64/PatternAASize32-16 0.70ns ± 1% 0.70ns ± 0% -0.73% (p=0.003 n=10+9)
FindBitRange64/PatternAAAAAAAAAAAAAAAASize2-16 0.34ns ± 2% 0.35ns ± 2% +3.94% (p=0.000 n=10+10)
FindBitRange64/PatternAAAAAAAAAAAAAAAASize8-16 0.70ns ± 1% 0.70ns ± 1% -0.67% (p=0.025 n=10+10)
FindBitRange64/PatternAAAAAAAAAAAAAAAASize32-16 0.70ns ± 1% 0.70ns ± 1% ~ (p=0.118 n=9+10)
FindBitRange64/Pattern80000000AAAAAAAASize2-16 0.34ns ± 1% 0.35ns ± 2% +3.72% (p=0.000 n=10+9)
FindBitRange64/Pattern80000000AAAAAAAASize8-16 0.70ns ± 1% 0.70ns ± 0% ~ (p=0.102 n=10+10)
FindBitRange64/Pattern80000000AAAAAAAASize32-16 0.70ns ± 1% 0.70ns ± 1% -0.55% (p=0.011 n=10+10)
FindBitRange64/PatternAAAAAAAA00000001Size2-16 0.34ns ± 2% 0.35ns ± 1% +3.83% (p=0.000 n=10+9)
FindBitRange64/PatternAAAAAAAA00000001Size8-16 0.70ns ± 1% 0.70ns ± 1% ~ (p=0.065 n=10+10)
FindBitRange64/PatternAAAAAAAA00000001Size32-16 0.70ns ± 1% 0.70ns ± 1% -0.95% (p=0.002 n=10+10)
FindBitRange64/PatternBBBBBBBBBBBBBBBBSize2-16 0.34ns ± 0% 0.35ns ± 1% +4.12% (p=0.000 n=8+10)
FindBitRange64/PatternBBBBBBBBBBBBBBBBSize8-16 1.24ns ± 0% 1.23ns ± 0% -0.30% (p=0.002 n=10+9)
FindBitRange64/PatternBBBBBBBBBBBBBBBBSize32-16 1.24ns ± 0% 1.24ns ± 0% -0.17% (p=0.023 n=9+10)
FindBitRange64/Pattern80000000BBBBBBBBSize2-16 0.34ns ± 1% 0.35ns ± 2% +4.82% (p=0.000 n=9+10)
FindBitRange64/Pattern80000000BBBBBBBBSize8-16 1.24ns ± 1% 1.24ns ± 0% ~ (p=0.063 n=10+10)
FindBitRange64/Pattern80000000BBBBBBBBSize32-16 1.24ns ± 0% 1.24ns ± 0% ~ (p=0.164 n=9+10)
FindBitRange64/PatternBBBBBBBB00000001Size2-16 0.34ns ± 1% 0.35ns ± 1% +4.38% (p=0.000 n=8+10)
FindBitRange64/PatternBBBBBBBB00000001Size8-16 1.24ns ± 1% 1.24ns ± 0% ~ (p=0.052 n=10+10)
FindBitRange64/PatternBBBBBBBB00000001Size32-16 1.24ns ± 0% 1.23ns ± 0% -0.40% (p=0.000 n=10+10)
FindBitRange64/PatternCCCCCCCCCCCCCCCCSize2-16 0.34ns ± 0% 0.35ns ± 2% +3.96% (p=0.000 n=9+10)
FindBitRange64/PatternCCCCCCCCCCCCCCCCSize8-16 1.24ns ± 0% 1.23ns ± 0% -0.30% (p=0.000 n=10+9)
FindBitRange64/PatternCCCCCCCCCCCCCCCCSize32-16 1.24ns ± 0% 1.24ns ± 1% ~ (p=0.284 n=10+10)
FindBitRange64/Pattern4444444444444444Size2-16 0.34ns ± 1% 0.35ns ± 1% +3.91% (p=0.000 n=9+9)
FindBitRange64/Pattern4444444444444444Size8-16 0.70ns ± 1% 0.70ns ± 1% ~ (p=0.617 n=10+10)
FindBitRange64/Pattern4444444444444444Size32-16 0.70ns ± 1% 0.70ns ± 1% -0.60% (p=0.006 n=10+10)
FindBitRange64/Pattern4040404040404040Size2-16 0.34ns ± 2% 0.35ns ± 2% +3.67% (p=0.000 n=10+10)
FindBitRange64/Pattern4040404040404040Size8-16 0.70ns ± 2% 0.70ns ± 1% -0.87% (p=0.014 n=10+10)
FindBitRange64/Pattern4040404040404040Size32-16 0.70ns ± 1% 0.70ns ± 1% ~ (p=0.256 n=10+10)
FindBitRange64/Pattern4000400040004000Size2-16 0.34ns ± 2% 0.35ns ± 3% +4.71% (p=0.000 n=10+10)
FindBitRange64/Pattern4000400040004000Size8-16 0.70ns ± 1% 0.70ns ± 1% ~ (p=0.393 n=10+10)
FindBitRange64/Pattern4000400040004000Size32-16 0.70ns ± 1% 0.70ns ± 1% -0.86% (p=0.014 n=10+10)
NetpollBreak-16 1.49µs ± 1% 1.50µs ± 3% ~ (p=0.181 n=8+10)
Syscall-16 3.68ns ± 1% 3.66ns ± 2% ~ (p=0.148 n=10+10)
SyscallWork-16 5.15ns ± 1% 5.13ns ± 0% ~ (p=0.188 n=10+9)
SyscallExcess-16 3.89ns ± 2% 3.83ns ± 1% -1.52% (p=0.001 n=10+10)
SyscallExcessWork-16 5.34ns ± 1% 5.31ns ± 0% -0.64% (p=0.000 n=10+9)
PingPongHog-16 397ns ± 7% 394ns ±11% ~ (p=0.912 n=10+10)
StackGrowth-16 67.9ns ± 0% 68.8ns ± 0% +1.28% (p=0.000 n=10+8)
StackGrowthDeep-16 7.70µs ± 1% 8.48µs ± 2% +10.06% (p=0.000 n=9+10)
CreateGoroutines-16 124ns ± 1% 124ns ± 1% ~ (p=0.254 n=10+10)
CreateGoroutinesParallel-16 25.7ns ± 1% 27.6ns ± 2% +7.51% (p=0.000 n=10+10)
CreateGoroutinesCapture-16 823ns ± 1% 821ns ± 2% ~ (p=0.699 n=10+10)
CreateGoroutinesSingle-16 175ns ± 3% 172ns ± 3% -1.90% (p=0.011 n=10+10)
ClosureCall-16 0.11ns ± 7% 0.12ns ± 3% ~ (p=0.842 n=9+10)
WakeupParallelSpinning/0s-16 11.4µs ± 0% 11.4µs ± 0% ~ (p=0.325 n=9+10)
WakeupParallelSpinning/1µs-16 15.4µs ± 0% 15.4µs ± 1% ~ (p=0.955 n=10+10)
WakeupParallelSpinning/2µs-16 18.7µs ± 2% 18.9µs ± 2% ~ (p=0.052 n=10+10)
WakeupParallelSpinning/5µs-16 30.7µs ± 0% 30.7µs ± 0% -0.03% (p=0.003 n=10+10)
WakeupParallelSpinning/10µs-16 48.8µs ± 0% 48.8µs ± 0% ~ (p=0.670 n=10+10)
WakeupParallelSpinning/20µs-16 90.8µs ± 0% 90.8µs ± 0% -0.02% (p=0.004 n=10+10)
WakeupParallelSpinning/50µs-16 211µs ± 0% 211µs ± 0% ~ (p=0.194 n=10+10)
WakeupParallelSpinning/100µs-16 323µs ± 0% 323µs ± 0% ~ (p=1.000 n=10+9)
WakeupParallelSyscall/0s-16 118µs ± 0% 118µs ± 0% ~ (p=0.447 n=10+9)
WakeupParallelSyscall/1µs-16 119µs ± 2% 119µs ± 1% ~ (p=0.604 n=10+9)
WakeupParallelSyscall/2µs-16 120µs ± 1% 121µs ± 3% ~ (p=0.263 n=8+10)
WakeupParallelSyscall/5µs-16 126µs ± 2% 126µs ± 2% ~ (p=0.510 n=10+9)
WakeupParallelSyscall/10µs-16 136µs ± 1% 137µs ± 1% ~ (p=0.095 n=9+10)
WakeupParallelSyscall/20µs-16 156µs ± 2% 157µs ± 3% ~ (p=0.604 n=10+9)
WakeupParallelSyscall/50µs-16 221µs ± 1% 220µs ± 1% ~ (p=0.063 n=10+10)
WakeupParallelSyscall/100µs-16 326µs ± 0% 325µs ± 0% -0.26% (p=0.003 n=9+10)
Matmult-16 0.67ns ± 2% 0.66ns ± 2% ~ (p=0.256 n=10+10)
Fastrand-16 0.08ns ±11% 0.08ns ±13% ~ (p=0.661 n=9+10)
Fastrand64-16 0.08ns ±11% 0.08ns ± 6% ~ (p=0.631 n=10+10)
FastrandHashiter-16 1.76ns ± 1% 1.76ns ± 1% ~ (p=0.854 n=8+8)
Fastrandn/2-16 0.86ns ± 1% 0.86ns ± 1% +1.09% (p=0.000 n=10+9)
Fastrandn/3-16 0.85ns ± 1% 0.86ns ± 1% +1.23% (p=0.001 n=10+10)
Fastrandn/4-16 0.85ns ± 1% 0.87ns ± 2% +1.60% (p=0.000 n=10+10)
Fastrandn/5-16 0.85ns ± 1% 0.86ns ± 1% +1.05% (p=0.000 n=10+10)
IfaceCmp100-16 46.6ns ± 0% 46.1ns ± 0% -1.18% (p=0.000 n=10+10)
IfaceCmpNil100-16 26.8ns ± 0% 26.8ns ± 0% ~ (p=0.777 n=10+8)
EfaceCmpDiff-16 132ns ± 0% 130ns ± 0% -0.95% (p=0.000 n=10+9)
EfaceCmpDiffIndirect-16 209ns ± 0% 211ns ± 0% +1.14% (p=0.000 n=10+9)
Defer-16 3.40ns ± 1% 3.04ns ± 0% -10.67% (p=0.000 n=10+10)
Defer10-16 29.4ns ± 2% 27.2ns ± 3% -7.26% (p=0.000 n=10+10)
DeferMany-16 110ns ± 6% 113ns ± 2% +3.45% (p=0.017 n=9+9)
PanicRecover-16 67.6ns ± 0% 67.7ns ± 2% ~ (p=0.436 n=9+9)
GoroutineProfile/small-nil/idle-16 3.90µs ± 4% 3.86µs ± 2% ~ (p=0.305 n=10+9)
GoroutineProfile/small-nil/loaded-16 4.82µs ± 6% 4.82µs ± 4% ~ (p=0.905 n=10+9)
GoroutineProfile/small/idle-16 103µs ± 3% 102µs ± 3% ~ (p=0.113 n=9+9)
GoroutineProfile/small/loaded-16 432µs ± 5% 440µs ±13% ~ (p=0.604 n=9+10)
GoroutineProfile/large-nil/idle-16 3.86µs ± 3% 3.82µs ± 3% ~ (p=0.210 n=10+10)
GoroutineProfile/large-nil/loaded-16 4.90µs ± 2% 4.90µs ± 5% ~ (p=0.780 n=10+9)
GoroutineProfile/large/idle-16 2.58ms ± 1% 2.52ms ± 1% -2.38% (p=0.000 n=10+10)
GoroutineProfile/large/loaded-16 8.62ms ± 9% 8.90ms ±11% ~ (p=0.400 n=9+10)
GoroutineProfile/sparse-nil/idle-16 3.85µs ± 4% 3.81µs ± 3% ~ (p=0.470 n=10+10)
GoroutineProfile/sparse-nil/loaded-16 4.82µs ± 4% 4.69µs ± 5% ~ (p=0.052 n=10+10)
GoroutineProfile/sparse/idle-16 102µs ± 4% 102µs ± 2% ~ (p=0.497 n=10+9)
GoroutineProfile/sparse/loaded-16 438µs ± 7% 437µs ± 6% ~ (p=0.796 n=10+10)
RWMutexUncontended-16 6.79ns ± 0% 6.78ns ± 0% ~ (p=0.228 n=10+8)
RWMutexWrite100-16 85.4ns ± 0% 87.1ns ± 0% +2.00% (p=0.000 n=10+8)
RWMutexWrite10-16 168ns ±25% 152ns ±11% ~ (p=0.063 n=10+10)
RWMutexWorkWrite100-16 106ns ± 0% 106ns ± 3% ~ (p=0.136 n=10+10)
RWMutexWorkWrite10-16 567ns ± 3% 571ns ± 1% ~ (p=0.326 n=10+9)
SemTable/OneAddrCollision/n=1000-16 15.9µs ± 1% 16.0µs ± 1% +0.50% (p=0.031 n=9+9)
SemTable/ManyAddrCollision/n=1000-16 56.2µs ± 1% 56.8µs ± 1% +1.06% (p=0.000 n=10+10)
SemTable/OneAddrCollision/n=2000-16 32.6µs ± 2% 32.9µs ± 4% ~ (p=0.156 n=10+9)
SemTable/ManyAddrCollision/n=2000-16 118µs ± 0% 119µs ± 0% +0.75% (p=0.000 n=9+10)
SemTable/OneAddrCollision/n=4000-16 65.3µs ± 1% 65.6µs ± 3% ~ (p=0.497 n=9+10)
SemTable/ManyAddrCollision/n=4000-16 245µs ± 0% 248µs ± 2% +1.36% (p=0.000 n=9+10)
SemTable/OneAddrCollision/n=8000-16 131µs ± 1% 130µs ± 1% -1.01% (p=0.002 n=9+10)
SemTable/ManyAddrCollision/n=8000-16 503µs ± 1% 508µs ± 0% +0.97% (p=0.000 n=10+10)
MakeSliceCopy/mallocmove/Byte-16 67.6ns ± 1% 64.1ns ± 2% -5.20% (p=0.000 n=10+10)
MakeSliceCopy/mallocmove/Int-16 65.0ns ± 7% 61.7ns ± 4% -5.08% (p=0.009 n=10+10)
MakeSliceCopy/mallocmove/Ptr-16 88.1ns ± 1% 79.9ns ± 1% -9.29% (p=0.000 n=10+10)
MakeSliceCopy/makecopy/Byte-16 65.2ns ± 6% 63.4ns ± 0% ~ (p=0.500 n=10+8)
MakeSliceCopy/makecopy/Int-16 63.2ns ± 1% 64.1ns ± 1% +1.34% (p=0.001 n=9+9)
MakeSliceCopy/makecopy/Ptr-16 88.1ns ± 1% 80.1ns ± 1% -9.09% (p=0.000 n=10+10)
MakeSliceCopy/nilappend/Byte-16 69.8ns ± 1% 65.7ns ± 3% -5.80% (p=0.000 n=10+10)
MakeSliceCopy/nilappend/Int-16 69.6ns ± 2% 67.2ns ± 1% -3.50% (p=0.000 n=10+9)
MakeSliceCopy/nilappend/Ptr-16 91.5ns ± 1% 83.8ns ± 1% -8.42% (p=0.000 n=9+10)
MakeSlice/Byte-16 6.64ns ± 3% 6.58ns ± 2% ~ (p=0.393 n=10+10)
MakeSlice/Int16-16 8.60ns ± 1% 8.38ns ± 3% -2.48% (p=0.001 n=9+10)
MakeSlice/Int-16 17.7ns ± 3% 16.9ns ± 1% -4.67% (p=0.000 n=10+9)
MakeSlice/Ptr-16 24.0ns ± 3% 23.3ns ± 2% -3.25% (p=0.000 n=10+9)
MakeSlice/Struct/24-16 34.1ns ± 1% 32.0ns ± 1% -6.11% (p=0.000 n=10+10)
MakeSlice/Struct/32-16 39.1ns ± 4% 38.2ns ± 1% ~ (p=0.829 n=10+8)
MakeSlice/Struct/40-16 47.0ns ± 5% 43.0ns ± 2% -8.55% (p=0.000 n=10+9)
GrowSlice/Byte-16 15.3ns ± 3% 15.0ns ± 2% -1.75% (p=0.005 n=9+9)
GrowSlice/Int16-16 18.9ns ± 2% 18.4ns ± 2% -2.71% (p=0.000 n=10+9)
GrowSlice/Int-16 33.9ns ± 1% 32.2ns ± 1% -4.89% (p=0.000 n=10+9)
GrowSlice/Ptr-16 45.3ns ± 2% 43.5ns ± 1% -4.12% (p=0.000 n=10+10)
GrowSlice/Struct/24-16 61.9ns ± 2% 60.0ns ± 4% -3.10% (p=0.002 n=10+10)
GrowSlice/Struct/32-16 79.9ns ± 2% 72.3ns ± 3% -9.58% (p=0.000 n=8+10)
GrowSlice/Struct/40-16 97.1ns ± 7% 88.8ns ± 5% -8.49% (p=0.000 n=10+10)
ExtendSlice/IntSlice-16 21.1ns ± 2% 20.3ns ± 2% -3.71% (p=0.000 n=10+10)
ExtendSlice/PointerSlice-16 26.8ns ± 2% 26.3ns ± 2% -1.86% (p=0.004 n=10+10)
ExtendSlice/NoGrow-16 1.23ns ± 0% 1.30ns ± 1% +5.03% (p=0.000 n=10+10)
Append-16 4.58ns ± 1% 4.53ns ± 0% -1.11% (p=0.000 n=10+10)
AppendGrowByte-16 1.46ms ± 8% 1.42ms ± 7% -3.24% (p=0.035 n=10+10)
AppendGrowString-16 27.8ms ± 4% 27.2ms ± 5% ~ (p=0.052 n=10+10)
AppendSlice/1Bytes-16 1.03ns ± 1% 1.04ns ± 1% ~ (p=0.303 n=10+10)
AppendSlice/4Bytes-16 1.04ns ± 0% 1.05ns ± 0% +0.79% (p=0.000 n=9+10)
AppendSlice/7Bytes-16 1.23ns ± 1% 1.24ns ± 0% +0.45% (p=0.001 n=10+10)
AppendSlice/8Bytes-16 1.24ns ± 0% 1.24ns ± 0% ~ (p=0.183 n=10+10)
AppendSlice/15Bytes-16 1.37ns ± 1% 1.43ns ± 1% +3.88% (p=0.000 n=10+10)
AppendSlice/16Bytes-16 1.37ns ± 1% 1.42ns ± 1% +3.63% (p=0.000 n=9+10)
AppendSlice/32Bytes-16 1.44ns ± 0% 1.47ns ± 1% +1.83% (p=0.000 n=10+10)
AppendSliceLarge/1024Bytes-16 257ns ± 2% 234ns ± 1% -8.96% (p=0.000 n=8+9)
AppendSliceLarge/4096Bytes-16 871ns ± 6% 812ns ± 1% -6.80% (p=0.000 n=10+10)
AppendSliceLarge/16384Bytes-16 3.15µs ± 6% 3.04µs ± 5% ~ (p=0.052 n=10+10)
AppendSliceLarge/65536Bytes-16 10.7µs ± 7% 10.8µs ± 2% ~ (p=0.278 n=10+9)
AppendSliceLarge/262144Bytes-16 42.9µs ± 1% 39.6µs ± 5% -7.75% (p=0.000 n=9+10)
AppendSliceLarge/1048576Bytes-16 147µs ± 4% 144µs ± 4% -2.21% (p=0.035 n=10+10)
AppendStr/1Bytes-16 1.20ns ± 0% 1.20ns ± 0% ~ (p=0.755 n=10+10)
AppendStr/4Bytes-16 1.13ns ± 0% 1.14ns ± 1% +1.20% (p=0.000 n=10+10)
AppendStr/8Bytes-16 1.24ns ± 0% 1.25ns ± 0% +0.93% (p=0.000 n=10+10)
AppendStr/16Bytes-16 1.40ns ± 0% 1.42ns ± 0% +2.10% (p=0.000 n=9+10)
AppendStr/32Bytes-16 1.44ns ± 0% 1.45ns ± 0% +0.99% (p=0.000 n=10+10)
AppendSpecialCase-16 8.64ns ± 1% 8.89ns ± 2% +2.90% (p=0.000 n=10+10)
Copy/1Byte-16 1.24ns ± 1% 1.24ns ± 0% -0.28% (p=0.000 n=10+6)
Copy/1String-16 1.24ns ± 0% 1.23ns ± 0% ~ (p=0.160 n=10+10)
Copy/2Byte-16 1.24ns ± 0% 1.24ns ± 0% ~ (p=0.115 n=10+10)
Copy/2String-16 1.24ns ± 0% 1.24ns ± 1% ~ (p=0.954 n=10+10)
Copy/4Byte-16 1.24ns ± 0% 1.24ns ± 0% -0.44% (p=0.001 n=10+10)
Copy/4String-16 1.23ns ± 0% 1.23ns ± 0% ~ (p=0.081 n=10+10)
Copy/8Byte-16 1.37ns ± 0% 1.34ns ± 0% -1.79% (p=0.000 n=9+9)
Copy/8String-16 1.34ns ± 0% 1.34ns ± 0% -0.58% (p=0.000 n=9+10)
Copy/12Byte-16 1.44ns ± 0% 1.44ns ± 0% ~ (p=0.149 n=9+9)
Copy/12String-16 1.44ns ± 0% 1.45ns ± 0% ~ (p=0.124 n=9+9)
Copy/16Byte-16 1.44ns ± 0% 1.44ns ± 0% -0.19% (p=0.004 n=10+9)
Copy/16String-16 1.44ns ± 0% 1.45ns ± 0% +0.30% (p=0.008 n=10+10)
Copy/32Byte-16 1.63ns ± 1% 1.62ns ± 1% -0.72% (p=0.002 n=10+10)
Copy/32String-16 1.60ns ± 1% 1.64ns ± 0% +2.23% (p=0.000 n=10+10)
Copy/128Byte-16 2.06ns ± 0% 2.06ns ± 0% ~ (p=0.757 n=9+10)
Copy/128String-16 2.07ns ± 0% 2.07ns ± 0% +0.36% (p=0.004 n=10+10)
Copy/1024Byte-16 6.07ns ± 2% 6.00ns ± 1% -1.20% (p=0.000 n=9+10)
Copy/1024String-16 6.05ns ± 0% 5.95ns ± 1% -1.54% (p=0.000 n=10+9)
AppendInPlace/NoGrow/Byte-16 288ns ± 1% 284ns ± 1% -1.58% (p=0.000 n=10+10)
AppendInPlace/NoGrow/1Ptr-16 844ns ± 1% 809ns ± 3% -4.13% (p=0.000 n=9+10)
AppendInPlace/NoGrow/2Ptr-16 1.47µs ± 1% 1.46µs ± 1% ~ (p=0.388 n=9+10)
AppendInPlace/NoGrow/3Ptr-16 1.87µs ± 7% 1.91µs ± 1% ~ (p=0.166 n=10+8)
AppendInPlace/NoGrow/4Ptr-16 2.66µs ± 1% 2.67µs ± 3% ~ (p=0.968 n=9+10)
AppendInPlace/Grow/Byte-16 126ns ± 2% 121ns ± 2% -4.06% (p=0.000 n=10+10)
AppendInPlace/Grow/1Ptr-16 132ns ± 2% 127ns ± 2% -4.28% (p=0.000 n=10+9)
AppendInPlace/Grow/2Ptr-16 196ns ± 2% 188ns ± 1% -4.20% (p=0.000 n=10+8)
AppendInPlace/Grow/3Ptr-16 264ns ± 1% 260ns ± 1% -1.51% (p=0.000 n=9+10)
AppendInPlace/Grow/4Ptr-16 297ns ± 2% 294ns ± 2% ~ (p=0.085 n=10+10)
StackCopyPtr-16 36.4ms ± 2% 36.7ms ± 2% ~ (p=0.481 n=10+10)
StackCopy-16 33.9ms ± 3% 32.6ms ± 1% -3.87% (p=0.000 n=10+8)
StackCopyNoCache-16 1.00ms ± 5% 1.01ms ± 5% ~ (p=0.143 n=10+10)
StackCopyWithStkobj-16 11.0ms ± 3% 10.9ms ± 4% ~ (p=0.579 n=10+10)
Issue18138-16 49.2µs ± 5% 49.0µs ± 4% ~ (p=1.000 n=10+9)
CompareStringEqual-16 1.39ns ± 1% 1.45ns ± 2% +3.80% (p=0.000 n=8+10)
CompareStringIdentical-16 0.55ns ± 1% 0.55ns ± 0% +0.42% (p=0.007 n=10+10)
CompareStringSameLength-16 1.03ns ± 0% 1.03ns ± 0% ~ (p=0.430 n=9+10)
CompareStringDifferentLength-16 0.11ns ± 2% 0.11ns ± 3% ~ (p=0.139 n=9+10)
CompareStringBigUnaligned-16 23.9µs ± 1% 24.0µs ± 1% ~ (p=0.370 n=9+8)
CompareStringBig-16 22.0µs ± 3% 22.2µs ± 3% ~ (p=0.243 n=9+10)
ConcatStringAndBytes-16 10.7ns ± 1% 10.0ns ± 2% -6.33% (p=0.000 n=10+10)
SliceByteToString/1-16 1.34ns ± 0% 1.34ns ± 0% ~ (p=0.057 n=10+10)
SliceByteToString/2-16 6.67ns ± 2% 6.60ns ± 3% ~ (p=0.101 n=10+10)
SliceByteToString/4-16 7.76ns ± 2% 7.56ns ± 3% -2.59% (p=0.001 n=10+10)
SliceByteToString/8-16 9.81ns ± 4% 9.57ns ± 2% -2.48% (p=0.005 n=10+10)
SliceByteToString/16-16 14.0ns ± 3% 13.7ns ± 2% -2.31% (p=0.009 n=10+10)
SliceByteToString/32-16 17.3ns ± 1% 16.7ns ± 2% -3.41% (p=0.000 n=10+10)
SliceByteToString/64-16 25.1ns ± 1% 24.1ns ± 2% -3.93% (p=0.000 n=9+10)
SliceByteToString/128-16 38.6ns ± 1% 36.5ns ± 1% -5.60% (p=0.000 n=10+10)
RuneCount/lenruneslice/ASCII-16 4.12ns ± 0% 4.11ns ± 0% ~ (p=0.382 n=10+10)
RuneCount/lenruneslice/Japanese-16 25.4ns ± 2% 25.6ns ± 2% ~ (p=0.138 n=9+10)
RuneCount/lenruneslice/MixedLength-16 17.1ns ± 0% 17.2ns ± 0% +0.59% (p=0.000 n=9+9)
RuneCount/rangeloop/ASCII-16 3.30ns ± 1% 3.29ns ± 0% ~ (p=0.267 n=10+10)
RuneCount/rangeloop/Japanese-16 20.1ns ± 1% 24.9ns ± 1% +24.31% (p=0.000 n=9+9)
RuneCount/rangeloop/MixedLength-16 16.5ns ± 1% 16.7ns ± 1% +1.34% (p=0.000 n=10+10)
RuneCount/utf8.RuneCountInString/ASCII-16 5.71ns ± 1% 5.73ns ± 2% ~ (p=0.579 n=10+10)
RuneCount/utf8.RuneCountInString/Japanese-16 22.0ns ± 6% 18.4ns ± 3% -16.41% (p=0.000 n=9+10)
RuneCount/utf8.RuneCountInString/MixedLength-16 15.0ns ± 1% 14.9ns ± 1% -1.01% (p=0.004 n=9+10)
RuneIterate/range/ASCII-16 2.69ns ± 1% 2.72ns ± 0% +0.94% (p=0.026 n=10+9)
RuneIterate/range/Japanese-16 24.5ns ± 2% 25.3ns ± 2% +3.23% (p=0.000 n=9+10)
RuneIterate/range/MixedLength-16 17.0ns ± 1% 17.1ns ± 1% +0.85% (p=0.000 n=10+10)
RuneIterate/range1/ASCII-16 2.70ns ± 1% 2.72ns ± 0% ~ (p=0.058 n=9+9)
RuneIterate/range1/Japanese-16 24.1ns ± 2% 25.2ns ± 3% +4.30% (p=0.000 n=10+10)
RuneIterate/range1/MixedLength-16 16.9ns ± 1% 17.7ns ± 0% +5.04% (p=0.000 n=10+8)
RuneIterate/range2/ASCII-16 2.84ns ± 8% 2.72ns ± 1% -4.28% (p=0.003 n=10+9)
RuneIterate/range2/Japanese-16 22.7ns ± 4% 25.2ns ± 3% +10.97% (p=0.000 n=10+10)
RuneIterate/range2/MixedLength-16 17.0ns ± 1% 17.2ns ± 0% +0.95% (p=0.000 n=10+10)
ArrayEqual-16 0.40ns ± 5% 0.35ns ± 2% -11.83% (p=0.000 n=10+10)
Func/Name-16 8.05ns ± 1% 8.09ns ± 1% +0.40% (p=0.025 n=8+10)
Func/Entry-16 1.73ns ± 1% 1.66ns ± 1% -3.93% (p=0.000 n=10+10)
Func/FileLine-16 27.5ns ± 2% 26.0ns ± 0% -5.50% (p=0.000 n=10+10)
[Geo mean] 16.7ns 15.7ns -6.08%
name old speed new speed delta
SetTypePtr-16 11.0GB/s ± 1% 11.0GB/s ± 3% ~ (p=0.684 n=10+10)
SetTypePtr8-16 15.5GB/s ± 0% 15.5GB/s ± 0% ~ (p=0.123 n=10+10)
SetTypePtr16-16 31.0GB/s ± 1% 31.1GB/s ± 0% ~ (p=0.123 n=10+10)
SetTypePtr32-16 62.1GB/s ± 0% 62.2GB/s ± 0% ~ (p=0.123 n=10+10)
SetTypePtr64-16 124GB/s ± 0% 124GB/s ± 0% ~ (p=0.684 n=10+10)
SetTypePtr126-16 146GB/s ± 0% 146GB/s ± 0% ~ (p=0.481 n=10+10)
SetTypePtr128-16 154GB/s ± 0% 154GB/s ± 0% ~ (p=0.243 n=9+10)
SetTypePtrSlice-16 151GB/s ± 1% 151GB/s ± 1% ~ (p=0.497 n=9+10)
SetTypeNode1-16 5.82GB/s ± 1% 5.82GB/s ± 0% ~ (p=0.353 n=10+10)
SetTypeNode1Slice-16 76.1GB/s ± 1% 77.0GB/s ± 1% +1.19% (p=0.000 n=10+10)
SetTypeNode8-16 19.4GB/s ± 0% 19.4GB/s ± 0% ~ (p=0.130 n=8+8)
SetTypeNode8Slice-16 113GB/s ± 0% 113GB/s ± 0% ~ (p=0.604 n=10+9)
SetTypeNode64-16 76.5GB/s ± 0% 76.5GB/s ± 0% ~ (p=0.190 n=10+10)
SetTypeNode64Slice-16 97.8GB/s ± 0% 97.7GB/s ± 0% ~ (p=0.549 n=9+10)
SetTypeNode64Dead-16 95.5GB/s ± 0% 95.7GB/s ± 0% ~ (p=0.118 n=10+6)
SetTypeNode64DeadSlice-16 112GB/s ± 0% 112GB/s ± 0% ~ (p=0.353 n=10+10)
SetTypeNode124-16 146GB/s ± 0% 146GB/s ± 0% ~ (p=0.853 n=10+10)
SetTypeNode124Slice-16 146GB/s ± 5% 149GB/s ± 0% ~ (p=0.315 n=10+10)
SetTypeNode126-16 154GB/s ± 0% 154GB/s ± 0% ~ (p=0.356 n=10+9)
SetTypeNode126Slice-16 150GB/s ± 0% 150GB/s ± 0% ~ (p=0.095 n=9+10)
SetTypeNode128-16 107GB/s ± 0% 107GB/s ± 0% +0.31% (p=0.003 n=9+10)
SetTypeNode128Slice-16 119GB/s ± 0% 120GB/s ± 0% ~ (p=0.156 n=10+9)
SetTypeNode130-16 108GB/s ± 0% 108GB/s ± 0% +0.33% (p=0.002 n=10+10)
SetTypeNode130Slice-16 119GB/s ± 0% 119GB/s ± 0% ~ (p=0.739 n=10+10)
SetTypeNode1024-16 160GB/s ± 0% 159GB/s ± 1% ~ (p=0.113 n=9+9)
SetTypeNode1024Slice-16 144GB/s ± 0% 144GB/s ± 0% ~ (p=0.063 n=10+10)
Hash5-16 2.59GB/s ± 1% 2.49GB/s ± 0% -3.90% (p=0.000 n=10+9)
Hash16-16 7.85GB/s ± 1% 7.23GB/s ± 1% -7.92% (p=0.000 n=10+10)
Hash64-16 24.0GB/s ± 0% 23.9GB/s ± 0% ~ (p=0.190 n=9+9)
Hash1024-16 62.4GB/s ± 0% 62.3GB/s ± 0% -0.16% (p=0.017 n=9+10)
Hash65536-16 74.0GB/s ± 0% 74.0GB/s ± 0% ~ (p=0.796 n=10+10)
Memmove/1-16 1.08GB/s ± 0% 1.08GB/s ± 0% -0.21% (p=0.035 n=10+10)
Memmove/2-16 2.16GB/s ± 0% 2.15GB/s ± 0% ~ (p=0.105 n=10+10)
Memmove/3-16 3.24GB/s ± 1% 3.22GB/s ± 1% -0.49% (p=0.004 n=10+10)
Memmove/4-16 3.89GB/s ± 0% 3.89GB/s ± 0% ~ (p=0.218 n=10+10)
Memmove/5-16 4.42GB/s ± 0% 4.42GB/s ± 0% ~ (p=0.075 n=10+10)
Memmove/6-16 5.31GB/s ± 0% 5.29GB/s ± 1% ~ (p=0.218 n=10+10)
Memmove/7-16 6.19GB/s ± 0% 6.18GB/s ± 0% -0.15% (p=0.035 n=10+9)
Memmove/8-16 7.07GB/s ± 0% 7.07GB/s ± 0% ~ (p=0.684 n=10+10)
Memmove/9-16 7.22GB/s ± 0% 6.68GB/s ± 0% -7.37% (p=0.000 n=10+10)
Memmove/10-16 8.02GB/s ± 0% 7.43GB/s ± 0% -7.38% (p=0.000 n=9+9)
Memmove/11-16 8.83GB/s ± 0% 8.13GB/s ± 0% -7.87% (p=0.000 n=10+9)
Memmove/12-16 9.62GB/s ± 0% 8.89GB/s ± 1% -7.61% (p=0.000 n=10+10)
Memmove/13-16 10.4GB/s ± 0% 9.7GB/s ± 0% -7.20% (p=0.000 n=10+10)
Memmove/14-16 11.2GB/s ± 0% 10.4GB/s ± 1% -7.64% (p=0.000 n=10+9)
Memmove/15-16 12.0GB/s ± 0% 11.1GB/s ± 0% -7.46% (p=0.000 n=10+9)
Memmove/16-16 12.8GB/s ± 0% 11.8GB/s ± 1% -7.67% (p=0.000 n=10+10)
Memmove/32-16 23.8GB/s ± 0% 23.5GB/s ± 1% -1.20% (p=0.000 n=10+10)
Memmove/64-16 44.2GB/s ± 0% 39.1GB/s ± 0% -11.56% (p=0.000 n=10+9)
Memmove/128-16 68.7GB/s ± 0% 63.2GB/s ± 0% -7.95% (p=0.000 n=10+10)
Memmove/256-16 104GB/s ± 0% 103GB/s ± 0% -1.13% (p=0.000 n=10+10)
Memmove/512-16 129GB/s ± 1% 129GB/s ± 0% ~ (p=0.165 n=10+10)
Memmove/1024-16 174GB/s ± 1% 174GB/s ± 1% ~ (p=0.258 n=9+9)
Memmove/2048-16 213GB/s ± 1% 213GB/s ± 2% ~ (p=0.963 n=8+9)
Memmove/4096-16 250GB/s ± 1% 240GB/s ± 4% -3.83% (p=0.006 n=9+9)
MemmoveOverlap/32-16 19.8GB/s ± 1% 19.1GB/s ± 1% -3.40% (p=0.000 n=10+10)
MemmoveOverlap/64-16 39.0GB/s ± 0% 38.8GB/s ± 0% -0.28% (p=0.001 n=9+9)
MemmoveOverlap/128-16 62.2GB/s ± 0% 62.1GB/s ± 0% ~ (p=0.063 n=10+10)
MemmoveOverlap/256-16 96.0GB/s ± 0% 95.8GB/s ± 0% -0.26% (p=0.009 n=10+10)
MemmoveOverlap/512-16 83.6GB/s ±16% 89.2GB/s ± 0% ~ (p=0.696 n=10+8)
MemmoveOverlap/1024-16 141GB/s ± 0% 140GB/s ± 0% -0.28% (p=0.006 n=8+10)
MemmoveOverlap/2048-16 172GB/s ± 0% 171GB/s ± 1% -0.38% (p=0.008 n=9+9)
MemmoveOverlap/4096-16 176GB/s ± 1% 177GB/s ± 1% +0.84% (p=0.001 n=8+10)
MemmoveUnalignedDst/1-16 806MB/s ± 0% 802MB/s ± 1% -0.52% (p=0.023 n=10+10)
MemmoveUnalignedDst/2-16 1.62GB/s ± 0% 1.62GB/s ± 0% -0.11% (p=0.041 n=10+10)
MemmoveUnalignedDst/3-16 2.43GB/s ± 0% 2.43GB/s ± 0% -0.14% (p=0.006 n=9+9)
MemmoveUnalignedDst/4-16 3.24GB/s ± 0% 3.23GB/s ± 1% -0.36% (p=0.007 n=10+10)
MemmoveUnalignedDst/5-16 3.71GB/s ± 0% 3.71GB/s ± 0% ~ (p=0.063 n=10+10)
MemmoveUnalignedDst/6-16 4.48GB/s ± 0% 4.47GB/s ± 0% ~ (p=0.912 n=10+10)
MemmoveUnalignedDst/7-16 5.22GB/s ± 0% 5.22GB/s ± 0% ~ (p=1.000 n=10+10)
MemmoveUnalignedDst/8-16 5.95GB/s ± 0% 5.93GB/s ± 1% -0.40% (p=0.023 n=10+10)
MemmoveUnalignedDst/9-16 6.24GB/s ± 0% 6.24GB/s ± 0% ~ (p=0.912 n=10+10)
MemmoveUnalignedDst/10-16 6.94GB/s ± 0% 6.94GB/s ± 0% ~ (p=0.353 n=10+10)
MemmoveUnalignedDst/11-16 7.64GB/s ± 0% 7.63GB/s ± 0% ~ (p=0.393 n=10+10)
MemmoveUnalignedDst/12-16 8.33GB/s ± 0% 8.33GB/s ± 0% ~ (p=0.971 n=10+10)
MemmoveUnalignedDst/13-16 9.02GB/s ± 0% 9.01GB/s ± 0% ~ (p=0.436 n=10+10)
MemmoveUnalignedDst/14-16 9.71GB/s ± 0% 9.71GB/s ± 0% ~ (p=0.280 n=10+10)
MemmoveUnalignedDst/15-16 10.4GB/s ± 0% 10.4GB/s ± 1% ~ (p=0.853 n=10+10)
MemmoveUnalignedDst/16-16 11.1GB/s ± 0% 11.1GB/s ± 0% ~ (p=0.089 n=10+10)
MemmoveUnalignedDst/32-16 19.7GB/s ± 1% 19.6GB/s ± 0% ~ (p=0.075 n=10+10)
MemmoveUnalignedDst/64-16 38.9GB/s ± 0% 38.8GB/s ± 0% ~ (p=0.218 n=10+10)
MemmoveUnalignedDst/128-16 62.1GB/s ± 0% 62.1GB/s ± 0% ~ (p=0.549 n=10+9)
MemmoveUnalignedDst/256-16 69.4GB/s ± 0% 69.3GB/s ± 0% ~ (p=0.105 n=10+10)
MemmoveUnalignedDst/512-16 124GB/s ± 1% 124GB/s ± 0% ~ (p=0.762 n=10+8)
MemmoveUnalignedDst/1024-16 136GB/s ± 0% 136GB/s ± 1% ~ (p=0.666 n=9+9)
MemmoveUnalignedDst/2048-16 159GB/s ± 0% 159GB/s ± 0% ~ (p=0.574 n=8+8)
MemmoveUnalignedDst/4096-16 161GB/s ± 0% 161GB/s ± 0% ~ (p=1.000 n=9+9)
MemmoveUnalignedDstOverlap/32-16 7.84GB/s ± 0% 7.83GB/s ± 0% ~ (p=0.353 n=10+10)
MemmoveUnalignedDstOverlap/64-16 14.0GB/s ± 0% 14.0GB/s ± 0% ~ (p=0.661 n=10+9)
MemmoveUnalignedDstOverlap/128-16 27.4GB/s ± 0% 27.4GB/s ± 0% ~ (p=0.353 n=10+10)
MemmoveUnalignedDstOverlap/256-16 50.4GB/s ± 0% 50.4GB/s ± 0% ~ (p=0.156 n=10+9)
MemmoveUnalignedDstOverlap/512-16 60.7GB/s ± 4% 62.5GB/s ± 0% +3.07% (p=0.022 n=10+9)
MemmoveUnalignedDstOverlap/1024-16 107GB/s ± 0% 107GB/s ± 0% ~ (p=0.234 n=8+8)
MemmoveUnalignedDstOverlap/2048-16 146GB/s ± 0% 146GB/s ± 1% ~ (p=0.182 n=10+9)
MemmoveUnalignedDstOverlap/4096-16 155GB/s ± 0% 155GB/s ± 0% ~ (p=0.400 n=10+9)
MemmoveUnalignedSrc/1-16 882MB/s ± 0% 884MB/s ± 1% +0.24% (p=0.033 n=10+9)
MemmoveUnalignedSrc/2-16 1.76GB/s ± 1% 1.77GB/s ± 0% +0.27% (p=0.028 n=10+9)
MemmoveUnalignedSrc/3-16 2.43GB/s ± 0% 2.43GB/s ± 0% +0.26% (p=0.027 n=9+10)
MemmoveUnalignedSrc/4-16 3.24GB/s ± 0% 3.24GB/s ± 1% ~ (p=0.079 n=9+10)
MemmoveUnalignedSrc/5-16 3.73GB/s ± 0% 3.73GB/s ± 1% ~ (p=0.829 n=8+10)
MemmoveUnalignedSrc/6-16 4.47GB/s ± 0% 4.49GB/s ± 0% +0.39% (p=0.000 n=10+10)
MemmoveUnalignedSrc/7-16 5.22GB/s ± 0% 5.23GB/s ± 0% ~ (p=0.280 n=10+10)
MemmoveUnalignedSrc/8-16 5.95GB/s ± 0% 5.98GB/s ± 0% +0.39% (p=0.001 n=10+9)
MemmoveUnalignedSrc/9-16 6.24GB/s ± 0% 6.25GB/s ± 0% ~ (p=0.549 n=10+9)
MemmoveUnalignedSrc/10-16 6.93GB/s ± 0% 6.94GB/s ± 0% ~ (p=0.604 n=10+9)
MemmoveUnalignedSrc/11-16 7.63GB/s ± 0% 7.63GB/s ± 1% ~ (p=0.353 n=10+10)
MemmoveUnalignedSrc/12-16 8.32GB/s ± 0% 8.32GB/s ± 0% ~ (p=0.218 n=10+10)
MemmoveUnalignedSrc/13-16 9.02GB/s ± 0% 9.00GB/s ± 1% ~ (p=0.684 n=10+10)
MemmoveUnalignedSrc/14-16 9.71GB/s ± 0% 9.71GB/s ± 0% ~ (p=0.739 n=10+10)
MemmoveUnalignedSrc/15-16 10.4GB/s ± 0% 10.4GB/s ± 0% ~ (p=0.353 n=10+10)
MemmoveUnalignedSrc/16-16 11.1GB/s ± 1% 11.1GB/s ± 0% ~ (p=0.579 n=10+10)
MemmoveUnalignedSrc/32-16 20.0GB/s ± 1% 20.0GB/s ± 0% ~ (p=0.631 n=10+10)
MemmoveUnalignedSrc/64-16 38.8GB/s ± 0% 38.8GB/s ± 0% ~ (p=0.579 n=10+10)
MemmoveUnalignedSrc/128-16 61.2GB/s ± 0% 61.2GB/s ± 0% ~ (p=0.780 n=10+9)
MemmoveUnalignedSrc/256-16 94.8GB/s ± 0% 92.2GB/s ± 1% -2.73% (p=0.000 n=10+10)
MemmoveUnalignedSrc/512-16 119GB/s ± 0% 119GB/s ± 0% +0.26% (p=0.027 n=8+9)
MemmoveUnalignedSrc/1024-16 141GB/s ± 0% 142GB/s ± 1% +1.07% (p=0.000 n=8+10)
MemmoveUnalignedSrc/2048-16 157GB/s ± 0% 157GB/s ± 0% ~ (p=0.167 n=9+8)
MemmoveUnalignedSrc/4096-16 161GB/s ± 0% 162GB/s ± 1% ~ (p=0.063 n=10+10)
MemmoveUnalignedSrcOverlap/32-16 7.93GB/s ± 0% 7.88GB/s ± 0% -0.63% (p=0.000 n=9+10)
MemmoveUnalignedSrcOverlap/64-16 15.5GB/s ± 0% 15.5GB/s ± 0% ~ (p=0.529 n=10+10)
MemmoveUnalignedSrcOverlap/128-16 28.3GB/s ± 0% 28.3GB/s ± 0% ~ (p=0.218 n=10+10)
MemmoveUnalignedSrcOverlap/256-16 41.5GB/s ± 0% 41.6GB/s ± 0% +0.35% (p=0.000 n=10+9)
MemmoveUnalignedSrcOverlap/512-16 68.9GB/s ± 0% 68.8GB/s ± 0% ~ (p=0.541 n=9+8)
MemmoveUnalignedSrcOverlap/1024-16 115GB/s ± 0% 115GB/s ± 0% ~ (p=0.382 n=8+8)
MemmoveUnalignedSrcOverlap/2048-16 155GB/s ± 0% 144GB/s ±18% ~ (p=0.101 n=8+10)
MemmoveUnalignedSrcOverlap/4096-16 160GB/s ± 0% 160GB/s ± 1% ~ (p=0.605 n=9+9)
Memclr/5-16 5.81GB/s ± 1% 5.80GB/s ± 2% ~ (p=0.546 n=9+9)
Memclr/16-16 15.5GB/s ± 0% 15.4GB/s ± 0% -0.32% (p=0.008 n=9+10)
Memclr/64-16 51.8GB/s ± 0% 50.7GB/s ± 0% -2.22% (p=0.000 n=10+10)
Memclr/256-16 113GB/s ± 0% 113GB/s ± 0% ~ (p=0.143 n=10+10)
Memclr/4096-16 239GB/s ± 1% 237GB/s ± 0% -0.87% (p=0.000 n=10+10)
Memclr/65536-16 79.8GB/s ± 0% 79.7GB/s ± 0% ~ (p=0.529 n=10+10)
Memclr/1M-16 74.6GB/s ± 1% 74.7GB/s ± 1% ~ (p=0.529 n=10+10)
Memclr/4M-16 48.7GB/s ± 1% 48.8GB/s ± 0% ~ (p=0.123 n=10+10)
Memclr/8M-16 48.2GB/s ± 2% 48.6GB/s ± 0% ~ (p=0.408 n=10+8)
Memclr/16M-16 43.6GB/s ± 4% 43.3GB/s ± 0% ~ (p=0.173 n=10+8)
Memclr/64M-16 30.7GB/s ± 0% 30.7GB/s ± 0% ~ (p=0.113 n=10+9)
GoMemclr/5-16 6.07GB/s ± 0% 6.08GB/s ± 0% ~ (p=0.367 n=9+10)
GoMemclr/16-16 15.6GB/s ± 0% 15.6GB/s ± 0% -0.22% (p=0.004 n=9+9)
GoMemclr/64-16 56.1GB/s ± 0% 56.1GB/s ± 0% ~ (p=0.968 n=10+9)
GoMemclr/256-16 125GB/s ± 0% 124GB/s ± 0% ~ (p=0.912 n=10+10)
MemclrRange/1K_2K-16 210GB/s ± 0% 224GB/s ± 1% +6.81% (p=0.000 n=10+10)
MemclrRange/2K_8K-16 228GB/s ± 0% 228GB/s ± 0% ~ (p=0.684 n=10+10)
MemclrRange/4K_16K-16 279GB/s ± 0% 279GB/s ± 0% ~ (p=0.780 n=9+10)
MemclrRange/160K_228K-16 80.3GB/s ± 0% 80.2GB/s ± 0% ~ (p=0.165 n=10+10)
Copy/1Byte-16 808MB/s ± 1% 810MB/s ± 0% +0.28% (p=0.000 n=10+8)
Copy/1String-16 810MB/s ± 0% 811MB/s ± 0% ~ (p=0.105 n=10+10)
Copy/2Byte-16 1.62GB/s ± 0% 1.62GB/s ± 0% ~ (p=0.182 n=10+9)
Copy/2String-16 1.62GB/s ± 1% 1.62GB/s ± 1% ~ (p=1.000 n=10+10)
Copy/4Byte-16 3.22GB/s ± 0% 3.24GB/s ± 0% +0.46% (p=0.000 n=10+10)
Copy/4String-16 3.24GB/s ± 0% 3.24GB/s ± 0% ~ (p=0.075 n=10+10)
Copy/8Byte-16 5.86GB/s ± 0% 5.96GB/s ± 0% +1.82% (p=0.000 n=9+9)
Copy/8String-16 5.95GB/s ± 0% 5.99GB/s ± 0% +0.59% (p=0.000 n=9+10)
Copy/12Byte-16 8.32GB/s ± 0% 8.32GB/s ± 0% ~ (p=0.190 n=9+9)
Copy/12String-16 8.31GB/s ± 0% 8.29GB/s ± 0% ~ (p=0.068 n=9+10)
Copy/16Byte-16 11.1GB/s ± 0% 11.1GB/s ± 0% +0.18% (p=0.003 n=10+9)
Copy/16String-16 11.1GB/s ± 0% 11.1GB/s ± 0% -0.31% (p=0.009 n=10+10)
Copy/32Byte-16 19.6GB/s ± 1% 19.8GB/s ± 1% +0.72% (p=0.002 n=10+10)
Copy/32String-16 20.0GB/s ± 0% 19.5GB/s ± 0% -2.19% (p=0.000 n=10+10)
Copy/128Byte-16 62.2GB/s ± 0% 62.1GB/s ± 0% ~ (p=0.661 n=9+10)
Copy/128String-16 61.9GB/s ± 0% 61.7GB/s ± 0% -0.35% (p=0.005 n=10+10)
Copy/1024Byte-16 169GB/s ± 2% 171GB/s ± 1% +1.21% (p=0.000 n=9+10)
Copy/1024String-16 169GB/s ± 0% 172GB/s ± 1% +1.57% (p=0.000 n=10+9)
CompareStringBigUnaligned-16 43.8GB/s ± 1% 43.7GB/s ± 1% ~ (p=0.370 n=9+8)
CompareStringBig-16 47.6GB/s ± 3% 47.3GB/s ± 3% ~ (p=0.243 n=9+10)
[Geo mean] 25.3GB/s 28.0GB/s +10.66%
name old p50-ns new p50-ns delta
ReadMemStatsLatency-16 98.4k ±37% 112.7k ±64% ~ (p=0.436 n=10+10)
ReadMetricsLatency-16 1.69k ± 3% 1.70k ± 2% ~ (p=0.646 n=9+10)
GoroutineProfile/small-nil/idle-16 3.75k ± 4% 3.72k ± 1% ~ (p=0.447 n=10+9)
GoroutineProfile/small-nil/loaded-16 4.33k ± 3% 4.31k ± 5% ~ (p=0.931 n=9+9)
GoroutineProfile/small/idle-16 102k ± 3% 101k ± 4% ~ (p=0.113 n=9+9)
GoroutineProfile/small/loaded-16 214k ± 3% 215k ± 6% ~ (p=0.842 n=9+10)
GoroutineProfile/large-nil/idle-16 3.70k ± 2% 3.65k ± 2% ~ (p=0.075 n=10+10)
GoroutineProfile/large-nil/loaded-16 4.36k ± 3% 4.31k ±10% ~ (p=0.631 n=10+10)
GoroutineProfile/large/idle-16 2.56M ± 1% 2.51M ± 1% -2.28% (p=0.000 n=10+10)
GoroutineProfile/large/loaded-16 6.77M ± 4% 6.85M ±19% ~ (p=0.536 n=7+10)
GoroutineProfile/sparse-nil/idle-16 3.66k ± 1% 3.64k ± 2% ~ (p=0.136 n=9+9)
GoroutineProfile/sparse-nil/loaded-16 4.25k ± 5% 4.15k ± 4% ~ (p=0.190 n=10+10)
GoroutineProfile/sparse/idle-16 102k ± 4% 101k ± 3% ~ (p=0.447 n=10+9)
GoroutineProfile/sparse/loaded-16 216k ± 4% 218k ± 4% ~ (p=0.549 n=9+10)
[Geo mean] 35.8k 35.9k +0.35%
name old p90-ns new p90-ns delta
ReadMemStatsLatency-16 983k ±310% 200k ±34% -79.62% (p=0.034 n=10+8)
ReadMetricsLatency-16 4.01k ±35% 3.75k ±17% ~ (p=0.315 n=10+10)
GoroutineProfile/small-nil/idle-16 4.21k ± 4% 4.27k ± 8% ~ (p=0.968 n=9+10)
GoroutineProfile/small-nil/loaded-16 5.58k ± 8% 5.35k ±12% ~ (p=0.190 n=10+10)
GoroutineProfile/small/idle-16 108k ± 6% 107k ± 7% ~ (p=0.497 n=9+10)
GoroutineProfile/small/loaded-16 450k ± 5% 432k ± 3% -3.92% (p=0.002 n=9+9)
GoroutineProfile/large-nil/idle-16 4.13k ± 7% 4.04k ± 2% ~ (p=0.181 n=10+8)
GoroutineProfile/large-nil/loaded-16 5.76k ± 4% 5.67k ± 5% ~ (p=0.190 n=10+10)
GoroutineProfile/large/idle-16 2.63M ± 2% 2.58M ± 1% -1.97% (p=0.000 n=10+10)
GoroutineProfile/large/loaded-16 16.9M ± 4% 17.0M ± 6% ~ (p=0.661 n=9+10)
GoroutineProfile/sparse-nil/idle-16 4.21k ±10% 4.07k ± 7% ~ (p=0.128 n=10+10)
GoroutineProfile/sparse-nil/loaded-16 5.55k ± 8% 5.38k ± 6% ~ (p=0.089 n=10+10)
GoroutineProfile/sparse/idle-16 106k ± 4% 106k ± 3% ~ (p=0.661 n=10+9)
GoroutineProfile/sparse/loaded-16 454k ± 6% 441k ± 6% -2.86% (p=0.043 n=10+10)
[Geo mean] 58.4k 51.0k -12.61%
name old p99-ns new p99-ns delta
ReadMemStatsLatency-16 983k ±310% 200k ±34% -79.62% (p=0.034 n=10+8)
ReadMetricsLatency-16 26.6k ±22% 26.6k ±17% ~ (p=0.971 n=10+10)
GoroutineProfile/small-nil/idle-16 5.27k ±12% 5.19k ±12% ~ (p=0.579 n=10+10)
GoroutineProfile/small-nil/loaded-16 7.28k ± 3% 7.04k ± 9% ~ (p=0.113 n=9+10)
GoroutineProfile/small/idle-16 114k ± 6% 113k ± 6% ~ (p=0.604 n=9+10)
GoroutineProfile/small/loaded-16 4.84M ±70% 6.06M ±131% ~ (p=0.842 n=9+10)
GoroutineProfile/large-nil/idle-16 5.38k ±19% 5.26k ±13% ~ (p=0.912 n=10+10)
GoroutineProfile/large-nil/loaded-16 7.38k ± 3% 7.23k ± 4% ~ (p=0.143 n=10+10)
GoroutineProfile/large/idle-16 2.79M ± 5% 2.72M ± 3% ~ (p=0.089 n=10+10)
GoroutineProfile/large/loaded-16 24.0M ±24% 24.9M ±29% ~ (p=0.684 n=10+10)
GoroutineProfile/sparse-nil/idle-16 5.32k ±17% 5.49k ±17% ~ (p=0.684 n=10+10)
GoroutineProfile/sparse-nil/loaded-16 7.25k ± 4% 6.97k ± 5% -3.90% (p=0.005 n=9+10)
GoroutineProfile/sparse/idle-16 113k ± 5% 112k ± 6% ~ (p=0.631 n=10+10)
GoroutineProfile/sparse/loaded-16 4.00M ±66% 4.26M ±65% ~ (p=0.489 n=9+9)
[Geo mean] 107k 97k -9.55%
name old alloc/op new alloc/op delta
NewEmptyMap-16 0.00B 0.00B ~ (all equal)
NewSmallMap-16 0.00B 0.00B ~ (all equal)
MapPopulate/1-16 0.00B 0.00B ~ (all equal)
MapPopulate/10-16 179B ± 0% 179B ± 0% ~ (all equal)
MapPopulate/100-16 3.35kB ± 0% 3.35kB ± 0% ~ (p=0.294 n=10+8)
MapPopulate/1000-16 53.3kB ± 0% 53.3kB ± 0% ~ (p=1.000 n=8+10)
MapPopulate/10000-16 428kB ± 0% 428kB ± 0% ~ (p=0.469 n=10+10)
MapPopulate/100000-16 3.62MB ± 0% 3.62MB ± 0% ~ (p=0.888 n=9+10)
MapStringConversion/32/simple-16 0.00B 0.00B ~ (all equal)
MapStringConversion/32/struct-16 0.00B 0.00B ~ (all equal)
MapStringConversion/32/array-16 0.00B 0.00B ~ (all equal)
MapStringConversion/64/simple-16 0.00B 0.00B ~ (all equal)
MapStringConversion/64/struct-16 0.00B 0.00B ~ (all equal)
MapStringConversion/64/array-16 0.00B 0.00B ~ (all equal)
NewEmptyMapHintLessThan8-16 0.00B 0.00B ~ (all equal)
NewEmptyMapHintGreaterThan8-16 1.15kB ± 0% 1.15kB ± 0% ~ (all equal)
MapAppendAssign/Int32/256-16 41.7B ±15% 44.3B ±12% ~ (p=0.106 n=10+10)
MapAppendAssign/Int32/65536-16 22.6B ± 6% 23.5B ± 6% +4.19% (p=0.025 n=9+10)
MapAppendAssign/Int64/256-16 43.5B ±10% 42.9B ± 7% ~ (p=0.757 n=10+10)
MapAppendAssign/Int64/65536-16 24.7B ± 7% 21.8B ± 6% -11.74% (p=0.000 n=10+10)
MapAppendAssign/Str/256-16 87.6B ±10% 89.2B ± 9% ~ (p=0.379 n=10+10)
MapAppendAssign/Str/65536-16 45.1B ±14% 47.2B ± 8% ~ (p=0.150 n=10+9)
CreateGoroutinesCapture-16 144B ± 0% 144B ± 0% ~ (all equal)
[Geo mean] 769B 770B +0.21%
name old allocs/op new allocs/op delta
NewEmptyMap-16 0.00 0.00 ~ (all equal)
NewSmallMap-16 0.00 0.00 ~ (all equal)
MapPopulate/1-16 0.00 0.00 ~ (all equal)
MapPopulate/10-16 1.00 ± 0% 1.00 ± 0% ~ (all equal)
MapPopulate/100-16 17.0 ± 0% 17.0 ± 0% ~ (all equal)
MapPopulate/1000-16 73.0 ± 0% 73.0 ± 0% ~ (all equal)
MapPopulate/10000-16 320 ± 0% 320 ± 0% ~ (p=1.000 n=10+10)
MapPopulate/100000-16 4.00k ± 0% 4.00k ± 0% ~ (p=0.753 n=10+10)
MapStringConversion/32/simple-16 0.00 0.00 ~ (all equal)
MapStringConversion/32/struct-16 0.00 0.00 ~ (all equal)
MapStringConversion/32/array-16 0.00 0.00 ~ (all equal)
MapStringConversion/64/simple-16 0.00 0.00 ~ (all equal)
MapStringConversion/64/struct-16 0.00 0.00 ~ (all equal)
MapStringConversion/64/array-16 0.00 0.00 ~ (all equal)
NewEmptyMapHintLessThan8-16 0.00 0.00 ~ (all equal)
NewEmptyMapHintGreaterThan8-16 1.00 ± 0% 1.00 ± 0% ~ (all equal)
MapAppendAssign/Int32/256-16 0.00 0.00 ~ (all equal)
MapAppendAssign/Int32/65536-16 0.00 0.00 ~ (all equal)
MapAppendAssign/Int64/256-16 0.00 0.00 ~ (all equal)
MapAppendAssign/Int64/65536-16 0.00 0.00 ~ (all equal)
MapAppendAssign/Str/256-16 0.00 0.00 ~ (all equal)
MapAppendAssign/Str/65536-16 0.00 0.00 ~ (all equal)
CreateGoroutinesCapture-16 5.00 ± 0% 5.00 ± 0% ~ (all equal)
[Geo mean] 26.0 26.0 +0.00%
Change-Id: I5fb03e93df8b380e04795afbdcd1c94aeeecacc6
Reviewed-on: https://go-review.googlesource.com/c/go/+/454255
Reviewed-by: Keith Randall <khr@golang.org>
Reviewed-by: Keith Randall <khr@google.com>
Reviewed-by: Matthew Dempsky <mdempsky@google.com>
Run-TryBot: Jakub Ciolek <jakub@ciolek.dev>
TryBot-Result: Gopher Robot <gobot@golang.org>
|
||
|
Paul E. Murphy
|
1540531746 |
test/codegen: merge identical ppc64 and ppc64le tests
Manually consolidate the remaining ppc64/ppc64le test which are not so trivial to automatically merge. The remaining ppc64le tests are limited to cases where load/stores are merged (this only happens on ppc64le) and the race detector (only supported on ppc64le). Change-Id: I1f9c0f3d3ddbb7fbbd8c81fbbd6537394fba63ce Reviewed-on: https://go-review.googlesource.com/c/go/+/463217 Reviewed-by: Dmitri Shuralyov <dmitshur@google.com> Reviewed-by: Cherry Mui <cherryyz@google.com> Run-TryBot: Paul Murphy <murp@ibm.com> TryBot-Result: Gopher Robot <gobot@golang.org> Reviewed-by: Lynn Boger <laboger@linux.vnet.ibm.com> |
||
|
Paul E. Murphy
|
0301c6c351 |
test/codegen: combine trivial PPC64 tests into ppc64x
Use a small python script to consolidate duplicate
ppc64/ppc64le tests into a single ppc64x codegen test.
This makes small assumption that anytime two tests with
for different arch/variant combos exists, those tests
can be combined into a single ppc64x test.
E.x:
// ppc64le: foo
// ppc64le/power9: foo
into
// ppc64x: foo
or
// ppc64: foo
// ppc64le: foo
into
// ppc64x: foo
import glob
import re
files = glob.glob("codegen/*.go")
for file in files:
with open(file) as f:
text = [l for l in f]
i = 0
while i < len(text):
first = re.match("\s*// ?ppc64(le)?(/power[89])?:(.*)", text[i])
if first:
j = i+1
while j < len(text):
second = re.match("\s*// ?ppc64(le)?(/power[89])?:(.*)", text[j])
if not second:
break
if (not first.group(2) or first.group(2) == second.group(2)) and first.group(3) == second.group(3):
text[i] = re.sub(" ?ppc64(le|x)?"," ppc64x",text[i])
text=text[:j] + (text[j+1:])
else:
j += 1
i+=1
with open(file, 'w') as f:
f.write("".join(text))
Change-Id: Ic6b009b54eacaadc5a23db9c5a3bf7331b595821
Reviewed-on: https://go-review.googlesource.com/c/go/+/463220
Reviewed-by: Cherry Mui <cherryyz@google.com>
Reviewed-by: Lynn Boger <laboger@linux.vnet.ibm.com>
Reviewed-by: Bryan Mills <bcmills@google.com>
Run-TryBot: Paul Murphy <murp@ibm.com>
TryBot-Result: Gopher Robot <gobot@golang.org>
|
||
|
Paul E. Murphy
|
a37672bb7b |
test/codegen: accept ppc64x as alias for ppc64le and ppc64 arches
This helps simplify the noise when adding ppc codegen tests. ppc64x is used in other places to indicate something which runs on either endian. This helps cleanup existing codegen tests which are mostly identical between endian variants. condmove tests are converted as an example. Change-Id: I2b2d98a9a1859015f62db38d62d9d5d7593435b4 Reviewed-on: https://go-review.googlesource.com/c/go/+/462895 Reviewed-by: Cherry Mui <cherryyz@google.com> Reviewed-by: Matthew Dempsky <mdempsky@google.com> TryBot-Result: Gopher Robot <gobot@golang.org> Run-TryBot: Paul Murphy <murp@ibm.com> |
||
|
David Chase
|
e22bd2348c |
internal/abi,runtime: refactor map constants into one place
Previously TryBot-tested with bucket bits = 4. Also tested locally with bucket bits = 5. This makes it much easier to change the size of map buckets, and hopefully provides pointers to all the code that in some way depends on details of map layout. Change-Id: I9f6669d1eadd02f182d0bc3f959dc5f385fa1683 Reviewed-on: https://go-review.googlesource.com/c/go/+/462115 TryBot-Result: Gopher Robot <gobot@golang.org> Run-TryBot: David Chase <drchase@google.com> Reviewed-by: Austin Clements <austin@google.com> |
||
|
Jorropo
|
5c67ebbb31 |
cmd/compile: AMD64v3 remove unnecessary TEST comparision in isPowerOfTwo
With GOAMD64=V3 the canonical isPowerOfTwo function:
func isPowerOfTwo(x uintptr) bool {
return x&(x-1) == 0
}
Used to compile to:
temp := BLSR(x) // x&(x-1)
flags = TEST(temp, temp)
return flags.zf
However the blsr instruction already set ZF according to the result.
So we can remove the TEST instruction if we are just checking ZF.
Such as in multiple pieces of code around memory allocations.
This make the code smaller and faster.
Change-Id: Ia12d5a73aa3cb49188c0b647b1eff7b56c5a7b58
Reviewed-on: https://go-review.googlesource.com/c/go/+/448255
Run-TryBot: Jakub Ciolek <jakub@ciolek.dev>
TryBot-Result: Gopher Robot <gobot@golang.org>
Reviewed-by: Keith Randall <khr@google.com>
Reviewed-by: Keith Randall <khr@golang.org>
Reviewed-by: Cherry Mui <cherryyz@google.com>
|
||
|
Jorropo
|
fc814056aa |
cmd/compile: rewrite empty makeslice to zerobase pointer
make\(\[\][a-zA-Z0-9]+, 0\) is seen 52 times in the go source. And at least 391 times on internet: https://grep.app/search?q=make%5C%28%5C%5B%5C%5D%5Ba-zA-Z0-9%5D%2B%2C%200%5C%29®exp=true This used to compile to calling runtime.makeslice. However we can copy what we do for []T{}, just use a zerobase pointer. On my machine this is 10x faster (from 3ns to 0.3ns). Note that an empty loop also runs in 0.3ns, so this really is free when you count superscallar execution. Change-Id: I1cfe7e69f5a7a4dabbc71912ce6a4f8a2d4a7f3c Reviewed-on: https://go-review.googlesource.com/c/go/+/454036 Reviewed-by: Cherry Mui <cherryyz@google.com> Reviewed-by: Keith Randall <khr@google.com> TryBot-Result: Gopher Robot <gobot@golang.org> Reviewed-by: Keith Randall <khr@golang.org> Run-TryBot: Jakub Ciolek <jakub@ciolek.dev> |
||
|
Keith Randall
|
f959fb3872 |
cmd/compile: add anchored version of SP
The SPanchored opcode is identical to SP, except that it takes a memory argument so that it (and more importantly, anything that uses it) must be scheduled at or after that memory argument. This opcode ensures that a LEAQ of a variable gets scheduled after the corresponding VARDEF for that variable. This may lead to less CSE of LEAQ operations. The effect is very small. The go binary is only 80 bytes bigger after this CL. Usually LEAQs get folded into load/store operations, so the effect is only for pointerful types, large enough to need a duffzero, and have their address passed somewhere. Even then, usually the CSEd LEAQs will be un-CSEd because the two uses are on different sides of a function call and the LEAQ ends up being rematerialized at the second use anyway. Change-Id: Ib893562cd05369b91dd563b48fb83f5250950293 Reviewed-on: https://go-review.googlesource.com/c/go/+/452916 TryBot-Result: Gopher Robot <gobot@golang.org> Run-TryBot: Keith Randall <khr@golang.org> Reviewed-by: Martin Möhrmann <moehrmann@google.com> Reviewed-by: Martin Möhrmann <martin@golang.org> Reviewed-by: Keith Randall <khr@google.com> |
||
|
Keith Randall
|
1eb0465fa5 |
cmd/compile: turn off jump tables when spectre retpolines are on
Fixes #57097 Change-Id: I6ab659abbca1ae0ac8710674d39aec116fab0baa Reviewed-on: https://go-review.googlesource.com/c/go/+/455336 Reviewed-by: Keith Randall <khr@google.com> Reviewed-by: Cherry Mui <cherryyz@google.com> TryBot-Result: Gopher Robot <gobot@golang.org> Run-TryBot: Keith Randall <khr@golang.org> |
||
|
Paul E. Murphy
|
dc6b7c86df |
cmd/compile: merge zero constant ISEL in PPC64 lateLower pass
Add a new SSA opcode ISELZ, similar to ISELB to represent a select of value or 0. Then, merge candidate ISEL opcodes inside the late lower pass. This avoids complicating rules within the the lower pass. Change-Id: I3b14c94b763863aadc834b0e910a85870c131313 Reviewed-on: https://go-review.googlesource.com/c/go/+/442596 TryBot-Result: Gopher Robot <gobot@golang.org> Reviewed-by: Lynn Boger <laboger@linux.vnet.ibm.com> Reviewed-by: Michael Knyszek <mknyszek@google.com> Run-TryBot: Paul Murphy <murp@ibm.com> Reviewed-by: Joedian Reid <joedian@golang.org> |
||
|
Wayne Zuo
|
268f4629df |
cmd/compile: enable brachelim pass on loong64
Change-Id: I4fd1c307901c265ab9865bf8a74460ddc15e5d14 Reviewed-on: https://go-review.googlesource.com/c/go/+/416735 Reviewed-by: Keith Randall <khr@google.com> Reviewed-by: xiaodong liu <teaofmoli@gmail.com> Auto-Submit: Wayne Zuo <wdvxdr@golangcn.org> TryBot-Result: Gopher Robot <gobot@golang.org> Reviewed-by: David Chase <drchase@google.com> Run-TryBot: Wayne Zuo <wdvxdr@golangcn.org> |
||
|
Paul E. Murphy
|
390abbbbf1 |
codegen: check for PPC64 ISEL in condmove tests
ISEL is roughly equivalent to CMOV on PPC64. Verify ISEL generation in all reasonable cases. Note "ISEL test x y z" is the same as "ISEL !test y x z". test is always one of LT (0), GT (1), EQ (2), SO (3). Sometimes x and y are swapped if GE/LE/NE is desired. Change-Id: Ie1bf029224064e004d855099731fe5e8d05aa990 Reviewed-on: https://go-review.googlesource.com/c/go/+/445215 Reviewed-by: Lynn Boger <laboger@linux.vnet.ibm.com> Reviewed-by: Bryan Mills <bcmills@google.com> TryBot-Result: Gopher Robot <gobot@golang.org> Run-TryBot: Paul Murphy <murp@ibm.com> Reviewed-by: Than McIntosh <thanm@google.com> |
||
|
Paul E. Murphy
|
d031e9e07a |
cmd/compile/internal/ssa: re-adjust CarryChainTail scheduling priority
This needs to be as low as possible while not breaking priority assumptions of other scores to correctly schedule carry chains. Prior to the arm64 changes, it was set below ReadTuple. At the time, this prevented the MulHiLo implementation on PPC64 from occluding the scheduling of a full carry chain. Memory scores can also prevent better scheduling, as can be observed with crypto/internal/edwards25519/field.feMulGeneric. Fixes #56497 Change-Id: Ia4b54e6dffcce584faf46b1b8d7cea18a3913887 Reviewed-on: https://go-review.googlesource.com/c/go/+/447435 Reviewed-by: Cherry Mui <cherryyz@google.com> Reviewed-by: Keith Randall <khr@google.com> Run-TryBot: Paul Murphy <murp@ibm.com> TryBot-Result: Gopher Robot <gobot@golang.org> Reviewed-by: Bryan Mills <bcmills@google.com> Reviewed-by: Keith Randall <khr@golang.org> |
||
|
Keith Randall
|
9ce27feaeb |
cmd/compile: add rule for post-decomposed growslice optimization
The recently added rule only works before decomposing slices. Add a rule that works after decomposing slices. The reason we need the latter is because although the length may be a constant, it can be hidden inside a slice that is not constant (its pointer or capacity might be changing). By applying this optimization after decomposing slices, we can find more cases where it applies. Fixes #56440 Change-Id: I0094e59eee3065ab4d210defdda8227a6e897420 Reviewed-on: https://go-review.googlesource.com/c/go/+/446277 Run-TryBot: Keith Randall <khr@golang.org> Reviewed-by: Cherry Mui <cherryyz@google.com> TryBot-Result: Gopher Robot <gobot@golang.org> Reviewed-by: Keith Randall <khr@google.com> |
||
|
Keith Randall
|
0156b797e6 |
cmd/compile: recognize when the result of append has a constant length
Fixes a performance regression due to CL 418554. Fixes #56440 Change-Id: I6ff152e9b83084756363f49ee6b0844a7a284880 Reviewed-on: https://go-review.googlesource.com/c/go/+/445875 Run-TryBot: Keith Randall <khr@golang.org> Reviewed-by: Keith Randall <khr@google.com> TryBot-Result: Gopher Robot <gobot@golang.org> Reviewed-by: Cherry Mui <cherryyz@google.com> |
||
|
Wayne Zuo
|
90a3527427 |
cmd/compile: intrinsify Sub64 on loong64
This is a follow up of CL 420095 on loong64. file before after Δ % compile/internal/ssa.a 35649482 35653274 +3792 +0.011% compile/internal/ssagen.a 4099858 4098728 -1130 -0.028% ecdh.a 227896 226896 -1000 -0.439% internal/nistec/fiat.a 1212254 1128184 -84070 -6.935% tls.a 3256800 3256802 +2 +0.000% big.a 1708518 1702496 -6022 -0.352% bits.a 106762 105734 -1028 -0.963% math.a 578762 577288 -1474 -0.255% netip.a 555922 555610 -312 -0.056% net.a 3286528 3286530 +2 +0.000% golang.org/x/crypto/internal/poly1305.a 109546 107686 -1860 -1.698% total 260392768 260299668 -93100 -0.036% Change-Id: Ieffca705aae5666501f284502d986ca179dde494 Reviewed-on: https://go-review.googlesource.com/c/go/+/428557 Reviewed-by: Carlos Amedee <carlos@golang.org> TryBot-Result: Gopher Robot <gobot@golang.org> Reviewed-by: David Chase <drchase@google.com> Run-TryBot: Wayne Zuo <wdvxdr@golangcn.org> |
||
|
Wayne Zuo
|
97760ed651 |
cmd/compile: intrinsify Add64 on loong64
This is a follow up of CL 420094 on loong64.
Reduce go toolchain size slightly on linux/loong64.
compilecmp HEAD~1 -> HEAD
HEAD~1 (
|
||
|
Wayne Zuo
|
af668c689c |
cmd/compile: fold constant shift with extension on riscv64
For example: movb a0, a0 srai $1, a0, a0 the assembler will expand to: slli $56, a0, a0 srai $56, a0, a0 srai $1, a0, a0 this CL optimize to: slli $56, a0, a0 srai $57, a0, a0 Remove 270+ instructions from Go binary on linux/riscv64. Change-Id: I375e19f9d3bd54f2781791d8cbe5970191297dc8 Reviewed-on: https://go-review.googlesource.com/c/go/+/428496 Reviewed-by: Keith Randall <khr@google.com> Run-TryBot: Wayne Zuo <wdvxdr@golangcn.org> Reviewed-by: Joel Sing <joel@sing.id.au> Reviewed-by: Cherry Mui <cherryyz@google.com> TryBot-Result: Gopher Robot <gobot@golang.org> |
||
|
eric fang
|
ddc7d2a80c |
cmd/compile: add late lower pass for last rules to run
Usually optimization rules have corresponding priorities, some need to
be run first, some run next, and some run last, which produces the best
code. But currently our optimization rules have no priority, this CL
adds a late lower pass that runs those rules that need to be run at last,
such as split unreasonable constant folding. This pass can be seen as
the second round of the lower pass.
For example:
func foo(a, b uint64) uint64 {
d := a+0x1234568
d1 := b+0x1234568
return d&d1
}
The code generated by the master branch:
0x0004 00004 ADD $19088744, R0, R2 // movz+movk+add
0x0010 00016 ADD $19088744, R1, R1 // movz+movk+add
0x001c 00028 AND R1, R2, R0
This is because the current constant folding optimization rules do not
take into account the range of constants, causing the constant to be
loaded repeatedly. This CL splits these unreasonable constants folding
in the late lower pass. With this CL the generated code:
0x0004 00004 MOVD $19088744, R2 // movz+movk
0x000c 00012 ADD R0, R2, R3
0x0010 00016 ADD R1, R2, R1
0x0014 00020 AND R1, R3, R0
This CL also adds constant folding optimization for ADDS instruction.
In addition, in order not to introduce the codegen regression, an
optimization rule is added to change the addition of a negative number
into a subtraction of a positive number.
go1 benchmarks:
name old time/op new time/op delta
BinaryTree17-8 1.22s ± 1% 1.24s ± 0% +1.56% (p=0.008 n=5+5)
Fannkuch11-8 1.54s ± 0% 1.53s ± 0% -0.69% (p=0.016 n=4+5)
FmtFprintfEmpty-8 14.1ns ± 0% 14.1ns ± 0% ~ (p=0.079 n=4+5)
FmtFprintfString-8 26.0ns ± 0% 26.1ns ± 0% +0.23% (p=0.008 n=5+5)
FmtFprintfInt-8 32.3ns ± 0% 32.9ns ± 1% +1.72% (p=0.008 n=5+5)
FmtFprintfIntInt-8 54.5ns ± 0% 55.5ns ± 0% +1.83% (p=0.008 n=5+5)
FmtFprintfPrefixedInt-8 61.5ns ± 0% 62.0ns ± 0% +0.93% (p=0.008 n=5+5)
FmtFprintfFloat-8 72.0ns ± 0% 73.6ns ± 0% +2.24% (p=0.008 n=5+5)
FmtManyArgs-8 221ns ± 0% 224ns ± 0% +1.22% (p=0.008 n=5+5)
GobDecode-8 1.91ms ± 0% 1.93ms ± 0% +0.98% (p=0.008 n=5+5)
GobEncode-8 1.40ms ± 1% 1.39ms ± 0% -0.79% (p=0.032 n=5+5)
Gzip-8 115ms ± 0% 117ms ± 1% +1.17% (p=0.008 n=5+5)
Gunzip-8 19.4ms ± 1% 19.3ms ± 0% -0.71% (p=0.016 n=5+4)
HTTPClientServer-8 27.0µs ± 0% 27.3µs ± 0% +0.80% (p=0.008 n=5+5)
JSONEncode-8 3.36ms ± 1% 3.33ms ± 0% ~ (p=0.056 n=5+5)
JSONDecode-8 17.5ms ± 2% 17.8ms ± 0% +1.71% (p=0.016 n=5+4)
Mandelbrot200-8 2.29ms ± 0% 2.29ms ± 0% ~ (p=0.151 n=5+5)
GoParse-8 1.35ms ± 1% 1.36ms ± 1% ~ (p=0.056 n=5+5)
RegexpMatchEasy0_32-8 24.5ns ± 0% 24.5ns ± 0% ~ (p=0.444 n=4+5)
RegexpMatchEasy0_1K-8 131ns ±11% 118ns ± 6% ~ (p=0.056 n=5+5)
RegexpMatchEasy1_32-8 22.9ns ± 0% 22.9ns ± 0% ~ (p=0.905 n=4+5)
RegexpMatchEasy1_1K-8 126ns ± 0% 127ns ± 0% ~ (p=0.063 n=4+5)
RegexpMatchMedium_32-8 486ns ± 5% 483ns ± 0% ~ (p=0.381 n=5+4)
RegexpMatchMedium_1K-8 15.4µs ± 1% 15.5µs ± 0% ~ (p=0.151 n=5+5)
RegexpMatchHard_32-8 687ns ± 0% 686ns ± 0% ~ (p=0.103 n=5+5)
RegexpMatchHard_1K-8 20.7µs ± 0% 20.7µs ± 1% ~ (p=0.151 n=5+5)
Revcomp-8 175ms ± 2% 176ms ± 3% ~ (p=1.000 n=5+5)
Template-8 20.4ms ± 6% 20.1ms ± 2% ~ (p=0.151 n=5+5)
TimeParse-8 112ns ± 0% 113ns ± 0% +0.97% (p=0.016 n=5+4)
TimeFormat-8 156ns ± 0% 145ns ± 0% -7.14% (p=0.029 n=4+4)
Change-Id: I3ced26e89041f873ac989586514ccc5ee09f13da
Reviewed-on: https://go-review.googlesource.com/c/go/+/425134
Reviewed-by: Keith Randall <khr@google.com>
Reviewed-by: Cherry Mui <cherryyz@google.com>
TryBot-Result: Gopher Robot <gobot@golang.org>
Reviewed-by: Keith Randall <khr@golang.org>
Run-TryBot: Eric Fang <eric.fang@arm.com>
|
||
|
Keith Randall
|
6485e8f503 |
cmd/compile: use stricter rule for possible partial overlap
Partial overlaps can only happen for strict sub-pieces of larger arrays. That's a much stronger condition than the current optimization rules. Update #54467 Change-Id: I11e539b71099e50175f37ee78fddf69283f83ee5 Reviewed-on: https://go-review.googlesource.com/c/go/+/433056 TryBot-Result: Gopher Robot <gobot@golang.org> Reviewed-by: David Chase <drchase@google.com> Run-TryBot: Keith Randall <khr@golang.org> Reviewed-by: Matthew Dempsky <mdempsky@google.com> |
||
|
eric fang
|
cf53990b18 |
cmd/compile: Add some CMP and CMN optimization rules on arm64
This CL adds some optimizaion rules: 1, Converts CMP to CMN, or vice versa, when comparing with a negative number. 2, For equal and not equal comparisons, CMP can be converted to CMN in some cases. In theory we could do the same optimization for LT, LE, GT and GE, but need to account for overflow, this CL doesn't handle them. There are no noticeable performance changes. Change-Id: Ia49266c019ab7908ebc9510c2f02e121b1607869 Reviewed-on: https://go-review.googlesource.com/c/go/+/429795 Reviewed-by: Keith Randall <khr@golang.org> Reviewed-by: Keith Randall <khr@google.com> Reviewed-by: Cherry Mui <cherryyz@google.com> TryBot-Result: Gopher Robot <gobot@golang.org> Run-TryBot: Eric Fang <eric.fang@arm.com> |
||
|
Joel Sing
|
a7bcc94719 |
cmd/compile: resolve known outcomes for SLTI/SLTIU on riscv64
When SLTI/SLTIU is used with ANDI/ORI, it may be possible to determine the outcome based on the values of the immediates. Resolve these cases. Improves code generation for various shift operations. While here, sort tests by architecture to improve readability and ease future maintenance. Change-Id: I87e71e016a0e396a928e7d6389a2df61583dfd8d Reviewed-on: https://go-review.googlesource.com/c/go/+/428217 Reviewed-by: Wayne Zuo <wdvxdr@golangcn.org> TryBot-Result: Gopher Robot <gobot@golang.org> Run-TryBot: Jenny Rakoczy <jenny@golang.org> Reviewed-by: Jenny Rakoczy <jenny@golang.org> Run-TryBot: Joel Sing <joel@sing.id.au> Reviewed-by: Cherry Mui <cherryyz@google.com> Auto-Submit: Jenny Rakoczy <jenny@golang.org> |
||
|
ruinan
|
454a058ffc |
cmd/compile: Add shiftIsBounded check for logic shifts of arm64
This CL adds shiftIsBounded checks for the Lsh* and Rsh* rules in arm64. There is no need to check the shift value again with CMP + CSEL when the shift value is valid. Change-Id: I54620de64f02a1b5a11089add237248ae2de01b4 Reviewed-on: https://go-review.googlesource.com/c/go/+/417714 Reviewed-by: Keith Randall <khr@golang.org> Reviewed-by: Keith Randall <khr@google.com> Reviewed-by: Heschi Kreinick <heschi@google.com> |
||
|
Keith Randall
|
5b1fbfba1c |
cmd/compile: rewrite >>c<<c to &^(1<<c-1)
Fixes #54496 Change-Id: I3c2ed8cd55836d5b07c8cdec00d3b584885aca79 Reviewed-on: https://go-review.googlesource.com/c/go/+/424856 Reviewed-by: Keith Randall <khr@google.com> Reviewed-by: Heschi Kreinick <heschi@google.com> Run-TryBot: Martin Möhrmann <martin@golang.org> TryBot-Result: Gopher Robot <gobot@golang.org> Run-TryBot: Keith Randall <khr@golang.org> Reviewed-by: Martin Möhrmann <martin@golang.org> |
||
|
Matthew Dempsky
|
34f0029a85 |
cmd/compile/internal/noder: allow OCONVNOP for identical iface conversions
In go.dev/cl/421821, I included a hack to force OCONVNOP back to OCONVIFACE for conversions involving shape types and non-empty interfaces. The comment correctly noted that this was only needed for conversions between non-identical types, but the code was conservative and applied to even conversions between identical types. This CL adds an extra bool to record whether the conversion is between identical types, so we can keep OCONVNOP instead of forcing back to OCONVIFACE. This has a small improvement to generated code, because we no longer need a convI2I call (as demonstrated by codegen/ifaces.go). But more usefully, this is relevant to pruning unnecessary itab slots in runtime dictionaries (next CL). Change-Id: I94f89e961cd26629b925037fea58d283140766ff Reviewed-on: https://go-review.googlesource.com/c/go/+/427678 Reviewed-by: Keith Randall <khr@golang.org> Run-TryBot: Matthew Dempsky <mdempsky@google.com> Reviewed-by: Cuong Manh Le <cuong.manhle.vn@gmail.com> Reviewed-by: Keith Randall <khr@google.com> TryBot-Result: Gopher Robot <gobot@golang.org> |
||
Derek Parker
|
6605686e3b |
cmd/compile: new inline heuristic for struct compares
This CL changes the heuristic used to determine whether we can inline a
struct equality check or if we must generate a function and call that
function for equality.
The old method was to count struct fields, but this can lead to poor
in lining decisions. We should really be determining the cost of the
equality check and use that to determine if we should inline or generate
a function.
The new benchmark provided in this CL returns the following when compared
against tip:
```
name old time/op new time/op delta
EqStruct-32 2.46ns ± 4% 0.25ns ±10% -89.72% (p=0.000 n=39+39)
```
Fixes #38494
Change-Id: Ie06b80a2b2a03a3fd0978bcaf7715f9afb66e0ab
GitHub-Last-Rev:
|
||
|
ruinan
|
121344ac33 |
cmd/compile: optimize RotateLeft8/16 on arm64
This CL optimizes RotateLeft8/16 on arm64. For 16 bits, we form a 32 bits register by duplicating two 16 bits registers, then use RORW instruction to do the rotate shift. For 8 bits, we just use LSR and LSL instead of RORW because the code is simpler. Benchmark Old ThisCL delta RotateLeft8-46 2.16 ns/op 1.73 ns/op -19.70% RotateLeft16-46 2.16 ns/op 1.54 ns/op -28.53% Change-Id: I09cde4383d12e31876a57f8cdfd3bb4f324fadb0 Reviewed-on: https://go-review.googlesource.com/c/go/+/420976 Reviewed-by: Keith Randall <khr@google.com> Auto-Submit: Keith Randall <khr@golang.org> Reviewed-by: Keith Randall <khr@golang.org> TryBot-Result: Gopher Robot <gobot@golang.org> Reviewed-by: Heschi Kreinick <heschi@google.com> Run-TryBot: Keith Randall <khr@golang.org> |
||
|
ruinan
|
54c7bc9cff |
cmd/compile: optimize shift ops on arm64 when the shift value is v&63
For the following code case: var x uint64 x >> (shift & 63) We can directly genereta `x >> shift` on arm64, since the hardware will only use the bottom 6 bits of the shift amount. Benchmark old time/op new time/op delta ShiftArithmeticRight-8 0.40ns 0.31ns -21.7% Change-Id: Id58c8a5b2f6dd5c30c3876f4a36e11b4d81e2dc9 Reviewed-on: https://go-review.googlesource.com/c/go/+/425294 Reviewed-by: Keith Randall <khr@golang.org> Reviewed-by: Keith Randall <khr@google.com> TryBot-Result: Gopher Robot <gobot@golang.org> Auto-Submit: Keith Randall <khr@golang.org> Run-TryBot: Keith Randall <khr@golang.org> Reviewed-by: Heschi Kreinick <heschi@google.com> |
||
|
Keith Randall
|
33a7e5a4b4 |
cmd/compile: combine multiple rotate instructions
Rotating by c, then by d, is the same as rotating by c+d. Change-Id: I36df82261460ff80f7c6d39bcdf0e840cef1c91a Reviewed-on: https://go-review.googlesource.com/c/go/+/424894 Reviewed-by: Wayne Zuo <wdvxdr@golangcn.org> TryBot-Result: Gopher Robot <gobot@golang.org> Reviewed-by: Cherry Mui <cherryyz@google.com> Reviewed-by: Ruinan Sun <Ruinan.Sun@arm.com> Run-TryBot: Keith Randall <khr@golang.org> Reviewed-by: Heschi Kreinick <heschi@google.com> |