Some debugging code was recently added to:
1) provide more detail for the stale reason when it is
determined that a package is stale
2) provide file and package time and date information when
it is determined that runtime.a is stale
This backs out those those debugging messages.
Fixes#19116
Change-Id: I8dd0cbe29324820275b481d8bbb78ff2c5fbc362
Reviewed-on: https://go-review.googlesource.com/37382
Run-TryBot: Lynn Boger <laboger@linux.vnet.ibm.com>
TryBot-Result: Gobot Gobot <gobot@golang.org>
Reviewed-by: Brad Fitzpatrick <bradfitz@golang.org>
This makes a change in the SSA code generated for OpPPC64Xf2i64
and OpPPC64Xi2f64 to use register based instructions to convert
between float and integer. This will require at least power8.
Currently the conversion is done by storing to and loading
from memory, which is more expensive.
This improves some of the math functions:
BenchmarkExp-128 74.1 66.8 -9.85%
BenchmarkExpGo-128 87.4 66.3 -24.14%
BenchmarkExp2-128 72.2 64.3 -10.94%
BenchmarkExp2Go-128 74.3 65.9 -11.31%
BenchmarkLgamma-128 51.0 39.7 -22.16%
BenchmarkLog-128 42.9 40.6 -5.36%
BenchmarkLogb-128 11.5 9.16 -20.35%
BenchmarkLog1p-128 38.9 36.2 -6.94%
BenchmarkSin-128 29.5 23.7 -19.66%
BenchmarkTan-128 32.8 27.4 -16.46%
Fixes#18922
Change-Id: I8e1cf14d3880d7cd720dc5188dd174cba1f7fef7
Reviewed-on: https://go-review.googlesource.com/36725
Reviewed-by: Carlos Eduardo Seo <cseo@linux.vnet.ibm.com>
Reviewed-by: Keith Randall <khr@golang.org>
This was a t.Parallel test but it was using the global DefaultTransport
via the global Get func.
Use a private Transport that won't have its CloseIdleConnections etc
methods called by other tests.
(I hit this flake myself while testing a different change.)
Change-Id: If0665e3e8580ee198f8e5f3079bfaea55f036eca
Reviewed-on: https://go-review.googlesource.com/37624
Run-TryBot: Brad Fitzpatrick <bradfitz@golang.org>
TryBot-Result: Gobot Gobot <gobot@golang.org>
Reviewed-by: Josh Bleecher Snyder <josharian@gmail.com>
Fixes#19329.
Change-Id: I6d8bb112a56d751a6d3ea9bd6021803cb9f59234
Reviewed-on: https://go-review.googlesource.com/37619
Reviewed-by: Ian Lance Taylor <iant@golang.org>
Run-TryBot: Ian Lance Taylor <iant@golang.org>
TryBot-Result: Gobot Gobot <gobot@golang.org>
This reverts commit 12b6c18139.
Reason for revert: Broke vet builder. #19322 was not fully fixed.
Change-Id: Id85131d4d0b8915480d65e3532da62b769463d70
Reviewed-on: https://go-review.googlesource.com/37625
Reviewed-by: Josh Bleecher Snyder <josharian@gmail.com>
The run1 call removed in golang.org/cl/36990 was necessary to
initialize the duration of the benchmark. With it gone, the math in
launch() starts from 100. This doesn't work out well for second-long
benchmark methods. Put it back.
Updates #18815
Change-Id: I461f3466c805d0c61124a2974662f7ad45335794
Reviewed-on: https://go-review.googlesource.com/37530
Run-TryBot: Heschi Kreinick <heschi@google.com>
TryBot-Result: Gobot Gobot <gobot@golang.org>
Reviewed-by: Marcel van Lohuizen <mpvl@golang.org>
Also stop skipping TestExternalLinkerDWARF and
TestDefaultLinkerDWARF.
Fixes#10776.
Change-Id: Ia596a684132e3cdee59ce5539293eedc1752fe5a
Reviewed-on: https://go-review.googlesource.com/36983
Reviewed-by: Ian Lance Taylor <iant@golang.org>
According to issue #19314 waitid on Darwin returns if the process is
stopped, even though we specify WEXITED.
Fixes#19314.
Change-Id: I95faf196c11e43b7741efff79351bab45c811bc2
Reviewed-on: https://go-review.googlesource.com/37610
Run-TryBot: Brad Fitzpatrick <bradfitz@golang.org>
TryBot-Result: Gobot Gobot <gobot@golang.org>
Reviewed-by: Brad Fitzpatrick <bradfitz@golang.org>
Passes go test -race.
Change-Id: I14b5b1b1a8ad1e43d60013823d71d78a6519581f
Reviewed-on: https://go-review.googlesource.com/37588
Run-TryBot: Robert Griesemer <gri@golang.org>
Reviewed-by: Alan Donovan <adonovan@google.com>
TryBot-Result: Gobot Gobot <gobot@golang.org>
The builtin runtime package definitions intentionally diverge from the
actual runtime package's, but this only works as long as they never
overlap.
To make it easier to expand the builtin runtime package, this CL now
loads their definitions into a logically separate "go.runtime"
package. By resetting the package's Prefix field to "runtime", any
references to builtin definitions will still resolve against the real
package runtime.
Fixes#14482.
Passes toolstash -cmp.
Change-Id: I539c0994deaed4506a331f38c5b4d6bc8c95433f
Reviewed-on: https://go-review.googlesource.com/37538
Run-TryBot: Matthew Dempsky <mdempsky@google.com>
TryBot-Result: Gobot Gobot <gobot@golang.org>
Reviewed-by: Robert Griesemer <gri@golang.org>
Link.Plists never contained more than one Plist, and sometimes none.
Passing around the Plist being worked on is straightforward and makes
the data flow easier to follow.
Change-Id: I79cb30cb2bd3d319fdbb1dfa5d35b27fcb748e5c
Reviewed-on: https://go-review.googlesource.com/37169
Run-TryBot: Brad Fitzpatrick <bradfitz@golang.org>
TryBot-Result: Gobot Gobot <gobot@golang.org>
Reviewed-by: Matthew Dempsky <mdempsky@google.com>
Removes an extra function call for TrailingZeroes and thus may
increase chances for inlining.
Change-Id: Iefd8d4402dc89b64baf4e5c865eb3dadade623af
Reviewed-on: https://go-review.googlesource.com/37613
Run-TryBot: Robert Griesemer <gri@golang.org>
Reviewed-by: Brad Fitzpatrick <bradfitz@golang.org>
Nobody intends to have duplicates anyway because it's so undefined
and everything handles it so poorly.
Removing duplicates automatically simplifies code and makes existing
code do what people already expect.
Fixes#12868
Change-Id: I95eeba8c59ff94d0f018012a6f4e031aaabfd5d9
Reviewed-on: https://go-review.googlesource.com/37586
Run-TryBot: Brad Fitzpatrick <bradfitz@golang.org>
TryBot-Result: Gobot Gobot <gobot@golang.org>
Reviewed-by: Ian Lance Taylor <iant@golang.org>
The new Map implementation introduced in golang.org/cl/33201
did not differentiate if an invalid UTF-8 sequence was decoded
or the RuneError rune. It would therefore always advance by
3 bytes (which is the length of the RuneError rune) instead
of 1 for an invalid sequences. This cl adds a check to correctly
determine the length of bytes needed to advance to the next rune.
Fixes#19330.
Change-Id: I1e7f9333f3ef6068ffc64015bb0a9f32b0b7111d
Reviewed-on: https://go-review.googlesource.com/37597
Run-TryBot: Martin Möhrmann <moehrmann@google.com>
TryBot-Result: Gobot Gobot <gobot@golang.org>
Reviewed-by: Joe Tsai <thebrokentoaster@gmail.com>
Reviewed-by: Brad Fitzpatrick <bradfitz@golang.org>
There's no need to use @block rules, as canMergeLoad makes sure that
the load and op are already in the same block.
With no @block needed, we also don't need to set the type explicitly.
It can just be inherited from the op being rewritten.
Noticed while working on #19284.
Change-Id: Ied8bcc8058260118ff7e166093112e29107bcb7e
Reviewed-on: https://go-review.googlesource.com/37585
Run-TryBot: Keith Randall <khr@golang.org>
Reviewed-by: Ilya Tocar <ilya.tocar@intel.com>
TryBot-Result: Gobot Gobot <gobot@golang.org>
SizesFor returns a Sizes implementation for a supported architecture.
Use functionality in srcimporter.
Change-Id: I197e641b419c678030dfaab5c5b8c569fd0410f3
Reviewed-on: https://go-review.googlesource.com/37583
Run-TryBot: Robert Griesemer <gri@golang.org>
Reviewed-by: Alan Donovan <adonovan@google.com>
runtime.memclr* functions have signatures
func memclrNoHeapPointers(ptr unsafe.Pointer, n uintptr)
func memclrHasPointers(ptr unsafe.Pointer, n uintptr)
Update compiler's copy. Also teach gc/mkbuiltin.go to handle
unsafe.Pointer. The import statement and its support is not
really necessary, but just to make it look like real Go code.
Fixes#19185.
Change-Id: I251d02571fde2716d4727e31e04d56ec04b6f22a
Reviewed-on: https://go-review.googlesource.com/37257
Run-TryBot: Cherry Zhang <cherryyz@google.com>
TryBot-Result: Gobot Gobot <gobot@golang.org>
Reviewed-by: Austin Clements <austin@google.com>
This is an inconsequential consequence of updating
math/big to use math/bits.
Better would be to teach the vet shift test
to size int/uint/uintptr to the platform in use,
eliminating the whole category of "might be too small".
Filed #19321 for that.
Change-Id: I7e0b837bd329132d7a564468c18502dd2e724fc6
Reviewed-on: https://go-review.googlesource.com/37576
Run-TryBot: Josh Bleecher Snyder <josharian@gmail.com>
Reviewed-by: Brad Fitzpatrick <bradfitz@golang.org>
This makes the vetall builder friendly to auto-sharding by the build
coordinator.
Change-Id: I0893f5051ec90e7a6adcb89904ba08cd2d590549
Reviewed-on: https://go-review.googlesource.com/37572
Reviewed-by: Josh Bleecher Snyder <josharian@gmail.com>
Explcitly block fused multiply-add pattern matching when a cast is used
after the multiplication, for example:
- (a * b) + c // can emit fused multiply-add
- float64(a * b) + c // cannot emit fused multiply-add
float{32,64} and complex{64,128} casts of matching types are now kept
as OCONV operations rather than being replaced with OCONVNOP operations
because they now imply a rounding operation (and therefore aren't a
no-op anymore).
Operations (for example, multiplication) on complex types may utilize
fused multiply-add and -subtract instructions internally. There is no
way to disable this behavior at the moment.
Improves the performance of the floating point implementation of
poly1305:
name old speed new speed delta
64 246MB/s ± 0% 275MB/s ± 0% +11.48% (p=0.000 n=10+8)
1K 312MB/s ± 0% 357MB/s ± 0% +14.41% (p=0.000 n=10+10)
64Unaligned 246MB/s ± 0% 274MB/s ± 0% +11.43% (p=0.000 n=10+10)
1KUnaligned 312MB/s ± 0% 357MB/s ± 0% +14.39% (p=0.000 n=10+8)
Updates #17895.
Change-Id: Ia771d275bb9150d1a598f8cc773444663de5ce16
Reviewed-on: https://go-review.googlesource.com/36963
Run-TryBot: Michael Munday <munday@ca.ibm.com>
TryBot-Result: Gobot Gobot <gobot@golang.org>
Reviewed-by: Keith Randall <khr@golang.org>
The checkAVX2 test doesn't appear to be correct,
because it always returns the value of support_bmi2,
even if the value of support_avx2 is false.
Consequently, checkAVX2 always returns true, as long
as BMI2 is supported, even if AVX2 is not supported.
We change checkAVX2 to return false when support_avx2
is false.
Fixes#19316.
Change-Id: I2ec9dfaa09f4b54c4a03d60efef891b955d60578
Reviewed-on: https://go-review.googlesource.com/37590
Run-TryBot: David du Colombier <0intro@gmail.com>
TryBot-Result: Gobot Gobot <gobot@golang.org>
Reviewed-by: Russ Cox <rsc@golang.org>
Fix up and enable a few rules.
They trigger a handful of times in std,
despite the frontend handling.
Change-Id: I83378c057cbbc95a4f2b58cd8c36aec0e9dc547f
Reviewed-on: https://go-review.googlesource.com/37227
Run-TryBot: Josh Bleecher Snyder <josharian@gmail.com>
TryBot-Result: Gobot Gobot <gobot@golang.org>
Reviewed-by: Keith Randall <khr@golang.org>
A type conversion inserted between MOVD{LT,LE,GT,GE,EQ,NE} and CMPWconst
by CL 36256 broke the rewrite rule designed to merge the two.
This results in simple for loops (e.g. for i := 0; i < N; i++ {})
emitting two comparisons instead of one, plus a conditional move.
This CL explicitly types the input to CMPWconst so that the type conversion
can be omitted. It also adds a test to check that conditional moves aren't
emitted for loops with 'less than' conditions (i.e. i < N) on s390x.
Fixes#19227.
Change-Id: Ia39e806ed723791c3c755951aef23f957828ea3e
Reviewed-on: https://go-review.googlesource.com/37334
Reviewed-by: Keith Randall <khr@golang.org>
Changes made:
* Adjust the documented form for a URL to make it more obvious what
happens when the scheme is missing.
* Remove references to Go1.5. We are sufficiently far along enough
that this distinction no longer matters.
* Remove the "Opaque" example which provides a hacky and misleading
use of the Opaque field. This workaround is no longer necessary
since RawPath was added in Go1.5 and the obvious approach just works:
// The raw string "/%2f/" will be sent as expected.
req, _ := http.NewRequest("GET", "https://example.com/%2f/")
Fixes#18824
Change-Id: Ie33d27222e06025ce8025f8a0f04b601aaee1513
Reviewed-on: https://go-review.googlesource.com/36127
Run-TryBot: Joe Tsai <thebrokentoaster@gmail.com>
Reviewed-by: Brad Fitzpatrick <bradfitz@golang.org>
The comments in cmd/internal/obj/funcdata.go are identical to the
comments in runtime/funcdata.h, but the majority of the definitions
they refer to don't apply to Go sources and have been stripped out of
funcdata.go.
Remove these stale comments from funcdata.go and clean up the
references to other copies of the PCDATA and FUNCDATA indexes.
Change-Id: I5d6e49a6e586cc9aecd7c3ce1567679f2a605884
Reviewed-on: https://go-review.googlesource.com/37330
Reviewed-by: Keith Randall <khr@golang.org>
If cgo is not available, parse /etc/group in Go to find the name/gid
we need. This does not consult the Network Information System (NIS),
/etc/nsswitch.conf or any other libc extensions to /etc/group.
Fixes#18102.
Change-Id: I6ae4fe0e2c899396c45cdf243d5483113932657c
Reviewed-on: https://go-review.googlesource.com/33713
Reviewed-by: Brad Fitzpatrick <bradfitz@golang.org>
Run-TryBot: Brad Fitzpatrick <bradfitz@golang.org>
TryBot-Result: Gobot Gobot <gobot@golang.org>
This is the escape analysis analog of CL 37499.
Fixes#12397Fixes#16871
The only "moved to heap" decisions eliminated by this
CL in std+cmd are:
cmd/compile/internal/gc/const.go:1514: moved to heap: ac
cmd/compile/internal/gc/const.go:1515: moved to heap: bd
cmd/compile/internal/gc/const.go:1516: moved to heap: bc
cmd/compile/internal/gc/const.go:1517: moved to heap: ad
cmd/compile/internal/gc/const.go:1546: moved to heap: ac
cmd/compile/internal/gc/const.go:1547: moved to heap: bd
cmd/compile/internal/gc/const.go:1548: moved to heap: bc
cmd/compile/internal/gc/const.go:1549: moved to heap: ad
cmd/compile/internal/gc/const.go:1550: moved to heap: cc_plus
cmd/compile/internal/gc/export.go:162: moved to heap: copy
cmd/compile/internal/gc/mpfloat.go:66: moved to heap: b
cmd/compile/internal/gc/mpfloat.go:97: moved to heap: b
Change-Id: I0d420b69c84a41ba9968c394e8957910bab5edea
Reviewed-on: https://go-review.googlesource.com/37508
Reviewed-by: David Chase <drchase@google.com>
Keep liveness bit vectors as simple live-variable vectors during
liveness analysis. We can defer expanding them into runtime heap
bitmaps until we're actually writing out the symbol data, and then we
only need temporary memory to expand one bitmap at a time.
This is logically cleaner (e.g., we no longer depend on stack frame
layout during analysis) and saves a little bit on allocations.
name old alloc/op new alloc/op delta
Template 41.4MB ± 0% 41.3MB ± 0% -0.28% (p=0.000 n=60+60)
Unicode 32.6MB ± 0% 32.6MB ± 0% -0.11% (p=0.000 n=59+60)
GoTypes 119MB ± 0% 119MB ± 0% -0.35% (p=0.000 n=60+59)
Compiler 483MB ± 0% 481MB ± 0% -0.47% (p=0.000 n=59+60)
name old allocs/op new allocs/op delta
Template 381k ± 1% 380k ± 1% -0.32% (p=0.000 n=60+60)
Unicode 325k ± 1% 325k ± 1% ~ (p=0.867 n=60+60)
GoTypes 1.16M ± 0% 1.15M ± 0% -0.40% (p=0.000 n=60+59)
Compiler 4.22M ± 0% 4.19M ± 0% -0.61% (p=0.000 n=59+60)
Passes toolstash -cmp.
Change-Id: I8175efe55201ffb5017f79ae6cb90df03f1b7e99
Reviewed-on: https://go-review.googlesource.com/37458
Run-TryBot: Matthew Dempsky <mdempsky@google.com>
TryBot-Result: Gobot Gobot <gobot@golang.org>
Reviewed-by: Josh Bleecher Snyder <josharian@gmail.com>
