It makes use of the hiter structure which matches runtime.hiter's.
This change mainly improves the performance of Next method of MapIter.
goos: darwin
goarch: arm64
pkg: reflect
cpu: Apple M2
│ ./old.txt │ ./new.txt │
│ sec/op │ sec/op vs base │
MapIterNext-8 61.95n ± 0% 54.95n ± 0% -11.28% (p=0.000 n=10)
for the change of `test/escape_reflect.go`:
removing mapiterkey, mapiterelem would cause leaking MapIter content
when calling SetIterKey and SetIterValue,
and this may cause map bucket to be allocated on heap instead of stack.
Reproduce:
```
{
m := map[int]int{1: 2} // escapes to heap after this change
it := reflect.ValueOf(m).MapRange()
it.Next()
var k, v int
reflect.ValueOf(&k).Elem().SetIterKey(it)
reflect.ValueOf(&v).Elem().SetIterValue(it)
println(k, v)
}
```
This CL would not introduce abi.NoEscape to fix this. It may need futher
optimization and tests on hiter field usage and its escape analysis.
Fixes#69416
Change-Id: Ibaa33bcf86228070b4a505b9512680791aa59f04
Reviewed-on: https://go-review.googlesource.com/c/go/+/612616
Reviewed-by: Keith Randall <khr@golang.org>
Auto-Submit: Keith Randall <khr@golang.org>
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Reviewed-by: Keith Randall <khr@google.com>
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This CL introduces the ability to print information about the toolchain switch used in the
go command, controlled by the `toolchaintrace` setting. This setting defaults to `toolchaintrace=0`,
meaning no information is printed. Setting it to `toolchaintrace=1` will cause the go command
to print a message indicating the toolchain used and where it was found.
Fixes: #63939
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Change-Id: Idc58e3d5bc76573aa48e1f7df352caa13004c25e
Reviewed-on: https://go-review.googlesource.com/c/go/+/610235
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TestInvalidAddrPortString currently only tests for invalid AddrPorts.
Add some valid cases as well to improve test coverage.
Change-Id: Iaa9192e48a61daed6f7ce7d680d602a021570bdc
Reviewed-on: https://go-review.googlesource.com/c/go/+/613795
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CL 584596 "-range<N>" suffix to the name of closure generated for a
rangefunc loop body. However, this breaks the condition that escape
analysis uses for checking whether a closure contains within function,
which is "F.funcN" for outer function "F" and closure "funcN".
Fixing this by adding new "-rangeN" to the condition.
Fixes#69434Fixes#69507
Change-Id: I411de8f63b69a6514a9e9504d49d62e00ce4115d
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M6 field for all extended mnemonics of VSTRC set to zero
This fixes VSTRC codegen to emit correctly and added testcases for all
the extended mnemonics.
Fixes#69216
Change-Id: I2a1b7fb61d6bd6444286eab56a506225c90b75e7
Reviewed-on: https://go-review.googlesource.com/c/go/+/612315
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Reviewed-by: Carlos Amedee <carlos@golang.org>
Change-Id: Ie3f35183e88d544559743394c34b55483fdf59aa
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Makes it consistent with other code in net/netip, also constants
are visible through LSP hover, which makes it easier to see the size.
Change-Id: I3d02c860ac3c61cc037eaca5418297f78698c3f8
GitHub-Last-Rev: 785a8d58c3
GitHub-Pull-Request: golang/go#69468
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Reword the paragraph to focus on modules rather than GOPATH mode.
Change-Id: Ide33d502311b3539018f167386a92a94ff955f1f
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The auxiliary field could be better documented as it appears in a lot of the operands.
This CL documents and points the user to the code for further information.
Change-Id: I34a73af488358c9799e286f3b5ee4b08639ce608
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Moving these intrinsics to a base package enables other internal/runtime
packages to use them.
There is no immediate need for getclosureptr outside of runtime, but it
is moved for consistency with the other intrinsics.
For #54766.
Change-Id: Ia68b16a938c8cb84cb222469db28e3a83861be5d
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Moving these intrinsics to a base package enables other internal/runtime
packages to use them.
For #54766.
Change-Id: I45a530422207dd94b5ad4eee51216c9410a84040
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Since CL 393354 this should no longer be necessary.
Change-Id: Ifec4ef483f9c06d9b49827327dd6708db146d886
Reviewed-on: https://go-review.googlesource.com/c/go/+/613157
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Moving these intrinsics to a base package enables other internal/runtime
packages to use them.
For #54766.
Change-Id: I0b3eded3bb45af53e3eb5bab93e3792e6a8beb46
Reviewed-on: https://go-review.googlesource.com/c/go/+/613260
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Compute the signature type of an iterator function argument
only once. This eliminates the need for two separate toSig
calls.
Change-Id: Ifeb33d21e381010d2012d74eac045856f1cca312
Reviewed-on: https://go-review.googlesource.com/c/go/+/613635
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This CL special-case User.GroupIds to get the group IDs from the user's
token when the user is the current user.
This approach is more efficient than calling NetUserGetLocalGroups.
It is also more reliable for users joined to an Active Directory domain,
where NetUserGetLocalGroups is likely to fail.
Updates #26041.
Fixes#62712.
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Follow-up on CL 467555.
Change-Id: I1815b5def656ae4b86c31385ad0737f0465fa2d6
Reviewed-on: https://go-review.googlesource.com/c/go/+/613535
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getcallerpc and getcallerps dropped their arguments in CL 65474 and CL
109596, respectively.
Without an argument there is nothing to escape.
Change-Id: I24f300d039a2a0615ca0c3ea247125676a6237d1
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Nothing ever creates this op, so it can be safely removed. Note that SSA
still intrinsifies runtime.getcallerpc.
The similar ir.OGETCALLERSP is still used for defer handling in
typecheck/func.go:tcRecover.
For #54766.
Change-Id: I6bdb2072af2c068080ae977c0cbd4684d0c7c752
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The compiler never does a lookup of these (LookupRuntime), so they
aren't needed here.
getcallerpc is only used in intrinsification. getcallersp is used in
intrinsification and defer handling via a direct OGETCALLERSP op.
For #54766.
Change-Id: I1666ceef3360a84573ae5b41b1c51d9205de7235
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Rather than conditionally assigning ujn, initialise ujn above the
loop to invent the leading 0 for u, then unconditionally load ujn
at the bottom of the loop. This code operates on the basis that
n >= 2, hence j+n-1 is always greater than zero.
Change-Id: I1272ef30c787ed8707ae8421af2adcccc776d389
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As https://go.dev/doc/comment#package says, every package
should have a package comment. Command cmd/preprofile had
one, it was just not being recognized due to a blank line.
For #51430.
For #58102.
Change-Id: I73e31158e0f244f6453728ab68c5c8da4cfb38b1
Reviewed-on: https://go-review.googlesource.com/c/go/+/613375
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CL 612617 did speedup RuneCountInString, thus we can now use it to
speedup RuneCount, too.
name old time/op new time/op delta
RuneCountTenASCIIChars-8 8.69ns ± 1% 3.59ns ± 2% -58.66% (p=0.000 n=9+9)
RuneCountTenJapaneseChars-8 49.8ns ± 2% 40.9ns ± 0% -17.94% (p=0.000 n=10+8)
Change-Id: I311750c00efc79af35fb0ca3b482a5d94e0a7977
Reviewed-on: https://go-review.googlesource.com/c/go/+/612955
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See disccusion in CL 612955.
Change-Id: I2de582321648f1798929ffb80d2f087e41146ead
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Fixes#24755
Change-Id: I00b276c5c2acb227d42a069d1af6027e4b499d31
Reviewed-on: https://go-review.googlesource.com/c/go/+/613115
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Fixes#20027
Change-Id: Ia616d43c0affa7b927ddfb53755072c94ba27917
Reviewed-on: https://go-review.googlesource.com/c/go/+/612618
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Change-Id: I8a38b4c71c34d3544ee32be9c6e767bb1099a720
GitHub-Last-Rev: ff4cb4e91b
GitHub-Pull-Request: golang/go#69424
Reviewed-on: https://go-review.googlesource.com/c/go/+/612735
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Change-Id: I6a23219a9e05350bdd9205e19165d5944f15de31
GitHub-Last-Rev: 8c295bf55f
GitHub-Pull-Request: golang/go#69429
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Change-Id: I2a9d849410002dae1f49a53597298c1903954d12
GitHub-Last-Rev: 20a56b4161
GitHub-Pull-Request: golang/go#69427
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Before this change, test binaries didn't have build info populated on them
unless they were tests for package main. Now we generate them for all
test binaries so that they can be inspected like other binaries.
We don't need to add the default GODEBUG in printLinkerConfig because it
will now always be present on the build info, and when build info is
present we use it to generate the hash.
Fixes#33976
Change-Id: Ib4f51c04f87df3c7f2f21c400ab446e70d66a101
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This reapplies CL 244960, for some reason CL 264181 removed this comment.
Updates #39590
Change-Id: Ia37268812c6929020b0cd583d2c7fa48a098377c
GitHub-Last-Rev: 2acee37fed
GitHub-Pull-Request: golang/go#69019
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GitHub-Last-Rev: 7b8099f1fe
GitHub-Pull-Request: golang/go#69426
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Change-Id: I1da668223b599867afe5483384b458482624adc5
GitHub-Last-Rev: 0a6bd6e84a
GitHub-Pull-Request: golang/go#69423
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All the users of HasSrc call t.Skip anyway, so let's move it to testenv.
Fix go/build to use MustHaveSource rather than MustHaveGoBuild where
appropriate.
Change-Id: I052bf96fd5a5780c1930da5b3a52b7a8dbebea46
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Change-Id: Ib437e272e0eb7d1b0969a4ed94d264ca3aad7c59
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Change-Id: I0a5ce4d50d65b803b001d01d627e8e6d2af66d6e
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CL 28490 speeded up non-ASCII rune decoding, and ASCII rune is also
decoded faster now.
Benchmark using:
perflock -governor 70% go test -run=NONE -bench=BenchmarkRuneCountInString -count=10
Result:
name old time/op new time/op delta
RuneCountInStringTenASCIIChars-8 10.2ns ± 0% 7.1ns ± 1% -30.53% (p=0.000 n=8+9)
RuneCountInStringTenJapaneseChars-8 49.3ns ± 2% 38.5ns ± 2% -21.84% (p=0.000 n=8+8)
Fixes#13162
Change-Id: Ifb01f3799c5c93e7f7c7af13a95becfde85ae807
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clone(CLONE_PIDFD) was added in Linux 5.2 and pidfd_open was added in
Linux 5.3. Thus our feature check for pidfd_open should be sufficient to
ensure that clone(CLONE_PIDFD) works.
Unfortuantely, some alternative Linux implementations may not follow
this strict ordering. For example, QEMU 7.2 (Dec 2022) added pidfd_open,
but clone(CLONE_PIDFD) was only added in QEMU 8.0 (Apr 2023).
Debian bookworm provides QEMU 7.2 by default.
Fixes#69259.
Change-Id: Ie3f3dc51f0cd76944871bf98690abf59f68fd7bf
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The ANDN, ORN and XNOR RISC-V Zbb extension instructions are easily
synthesised. Make them always available by adding support to the
riscv64 assembler so that we either emit two instruction sequences,
or a single instruction, when permitted by the GORISCV64 profile.
This means that these instructions can be used unconditionally,
simplifying compiler rewrite rules, codegen tests and manually
written assembly.
Around 180 instructions are removed from the Go binary on riscv64
when built with rva22u64.
Change-Id: Ib2d90f2593a306530dc0ed08a981acde4d01be20
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Previously we expected the default GODEBUG that's embedded in the binary
to be taken into account for build actionIDs through the build info. The
build info contains the default GODEBUG for a package main, and then
that build info is used to generate the action id. But tests of packages
other than main do not have buildinfo set on them. So the default
GODEBUG isn't taken into account in the action id for those tests.
Explicitly include GODEBUG when generating all link actions' action ids
to make sure it's always present.
Fixes#69203
Change-Id: Ifbc58482454ecfb51ba09cfcff02972cac3270c1
Cq-Include-Trybots: luci.golang.try:gotip-linux-amd64-longtest,gotip-windows-amd64-longtest
Reviewed-on: https://go-review.googlesource.com/c/go/+/610875
LUCI-TryBot-Result: Go LUCI <golang-scoped@luci-project-accounts.iam.gserviceaccount.com>
Reviewed-by: Sam Thanawalla <samthanawalla@google.com>
Compiler's version will not work well if gcc output have
different language. Like 'gcc -v', it may not output:
'gcc version xx.xx.x'
Fixes#69221
Change-Id: I4adcea79dfaaf5853dfb6e718468f8530c67da6a
GitHub-Last-Rev: 069787c083
GitHub-Pull-Request: golang/go#69223
Reviewed-on: https://go-review.googlesource.com/c/go/+/610215
LUCI-TryBot-Result: Go LUCI <golang-scoped@luci-project-accounts.iam.gserviceaccount.com>
Reviewed-by: DING HU <huzuzong123@gmail.com>
Reviewed-by: Ian Lance Taylor <iant@google.com>
Reviewed-by: Michael Matloob <matloob@golang.org>
Fixes#69406
Change-Id: I1c6b1498d87f94cc9196a933c13df1c3369e19a2
Reviewed-on: https://go-review.googlesource.com/c/go/+/610756
LUCI-TryBot-Result: Go LUCI <golang-scoped@luci-project-accounts.iam.gserviceaccount.com>
Run-TryBot: Ian Lance Taylor <iant@golang.org>
Auto-Submit: Tim King <taking@google.com>
TryBot-Result: Gopher Robot <gobot@golang.org>
Auto-Submit: Ian Lance Taylor <iant@google.com>
Reviewed-by: Tim King <taking@google.com>
Reviewed-by: Ian Lance Taylor <iant@google.com>
