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Commit Graph

53721 Commits

Author SHA1 Message Date
Archana R
59b15726d1 cmd/asm: fix condition check to work on ppc64
A condition check was added to parse.go in CL 405542 to prevent
usage of scaled operands on ppc64. However while trying to improve
the error notification message, an if-condition was left out by
oversight. This CL corrects that.

Change-Id: I8cef3dd194c75343354ffe888b5e639e694badde
Reviewed-on: https://go-review.googlesource.com/c/go/+/426994
Reviewed-by: Lynn Boger <laboger@linux.vnet.ibm.com>
Reviewed-by: David Chase <drchase@google.com>
Run-TryBot: Archana Ravindar <aravind5@in.ibm.com>
Reviewed-by: Heschi Kreinick <heschi@google.com>
TryBot-Result: Gopher Robot <gobot@golang.org>
2022-08-31 16:39:34 +00:00
eric fang
ebc75ac1c6 cmd/internal/obj/arm64: allow transition from $0 to ZR for MSR
Previously the first operand of MSR could be $0, which would be
converted to the ZR register. This is prohibited by CL 404316,
this CL restores this instruction format.

Change-Id: I5b5be59e76aa58423a0fb96942d1b2a9de62e311
Reviewed-on: https://go-review.googlesource.com/c/go/+/426198
TryBot-Result: Gopher Robot <gobot@golang.org>
Reviewed-by: David Chase <drchase@google.com>
Reviewed-by: Heschi Kreinick <heschi@google.com>
Run-TryBot: Eric Fang <eric.fang@arm.com>
2022-08-31 16:37:20 +00:00
bqyang
bc0a033266 runtime: fix comment typo in mpagealloc.go
leve --> level

Change-Id: Ia5ff46c79c4dda2df426ec75d69e8fcede909b47
GitHub-Last-Rev: e57cad22d9
GitHub-Pull-Request: golang/go#54788
Reviewed-on: https://go-review.googlesource.com/c/go/+/426974
Run-TryBot: Daniel Martí <mvdan@mvdan.cc>
Reviewed-by: Keith Randall <khr@golang.org>
TryBot-Result: Gopher Robot <gobot@golang.org>
Reviewed-by: Heschi Kreinick <heschi@google.com>
Auto-Submit: Keith Randall <khr@google.com>
Reviewed-by: Daniel Martí <mvdan@mvdan.cc>
Reviewed-by: Keith Randall <khr@google.com>
2022-08-31 16:27:09 +00:00
cuiweixie
fa0e3bffb4 runtime: convert semaRoot.nwait to atomic type
For #53821

Change-Id: I686fe81268f70acc6a4c3e6b1d3ed0e07bb0d61c
Reviewed-on: https://go-review.googlesource.com/c/go/+/425775
Run-TryBot: xie cui <523516579@qq.com>
TryBot-Result: Gopher Robot <gobot@golang.org>
Reviewed-by: Michael Pratt <mpratt@google.com>
Reviewed-by: Michael Knyszek <mknyszek@google.com>
Auto-Submit: Michael Knyszek <mknyszek@google.com>
Run-TryBot: Michael Pratt <mpratt@google.com>
2022-08-31 15:33:00 +00:00
Andy Pan
6e74c4116a runtime: convert p.numTimers and p.deletedTimers to internal atomic types
Note that this changes the non-atomic operations in p.destroy() to atomic operations.

For #53821

Change-Id: I7bba77c9a2287ba697c87cce2c79293e4d1b3334
Reviewed-on: https://go-review.googlesource.com/c/go/+/425774
Run-TryBot: Michael Knyszek <mknyszek@google.com>
TryBot-Result: Gopher Robot <gobot@golang.org>
Reviewed-by: Michael Pratt <mpratt@google.com>
Reviewed-by: Michael Knyszek <mknyszek@google.com>
2022-08-31 15:31:21 +00:00
cuiweixie
d01200e772 runtime: convert sig.{state,delivering} to atomic type
For #53821

Change-Id: I1c8df255ce9e2345d4fa45bd4d1761b73b9fa064
Reviewed-on: https://go-review.googlesource.com/c/go/+/425780
Reviewed-by: Michael Knyszek <mknyszek@google.com>
Reviewed-by: Michael Pratt <mpratt@google.com>
Run-TryBot: Michael Pratt <mpratt@google.com>
TryBot-Result: Gopher Robot <gobot@golang.org>
2022-08-31 15:30:57 +00:00
cuiweixie
a25a34abe9 runtime: convert mcache.flushGen to atomic type
For #53821

Change-Id: I90ab52a45b7fb6b9e3ff1d6ea97251549306c7aa
Reviewed-on: https://go-review.googlesource.com/c/go/+/425435
Reviewed-by: Michael Pratt <mpratt@google.com>
Reviewed-by: Michael Knyszek <mknyszek@google.com>
Run-TryBot: xie cui <523516579@qq.com>
TryBot-Result: Gopher Robot <gobot@golang.org>
2022-08-31 15:30:26 +00:00
Andy Pan
d3b35a4242 runtime: convert mOS.profileTimerValid to internal atomic type
For #53821

Change-Id: I6ef90867e918d4907baa83c5a811f1f93e8c09a5
Reviewed-on: https://go-review.googlesource.com/c/go/+/426196
Reviewed-by: Michael Knyszek <mknyszek@google.com>
TryBot-Result: Gopher Robot <gobot@golang.org>
Auto-Submit: Michael Pratt <mpratt@google.com>
Run-TryBot: Michael Knyszek <mknyszek@google.com>
Reviewed-by: Michael Pratt <mpratt@google.com>
2022-08-31 15:12:21 +00:00
Andy Pan
28e388589b runtime: convert workType.cycles to internal atomic types
Note that this changes a non-atomic operation to atomic operation in gcStart().

For #53821

Change-Id: I754d254f6f190855144ff62151b6bae673b47867
Reviewed-on: https://go-review.googlesource.com/c/go/+/425776
Reviewed-by: Michael Pratt <mpratt@google.com>
Reviewed-by: Michael Knyszek <mknyszek@google.com>
Auto-Submit: Michael Pratt <mpratt@google.com>
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Run-TryBot: Michael Knyszek <mknyszek@google.com>
2022-08-31 15:12:18 +00:00
Andy Pan
5634629f0b runtime: convert extram and extraMWaiters to internal atomic type
Updates #53821

Change-Id: Id579b2f8e48dfbe9f37e02d2fa8c94354f9887a4
Reviewed-on: https://go-review.googlesource.com/c/go/+/425480
Reviewed-by: Michael Knyszek <mknyszek@google.com>
Reviewed-by: Michael Pratt <mpratt@google.com>
Run-TryBot: hopehook <hopehook@golangcn.org>
Auto-Submit: Michael Pratt <mpratt@google.com>
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2022-08-31 15:01:49 +00:00
Sean Liao
3486735bf2 net/http/pprof: link docs to runtime/pprof
And add some documentation for the debug query param.

Fixes #27737
Fixes #53971

Change-Id: I629aaa2d4a43175381eb04872f1caad238519a41
Reviewed-on: https://go-review.googlesource.com/c/go/+/421635
Run-TryBot: Cherry Mui <cherryyz@google.com>
Reviewed-by: Than McIntosh <thanm@google.com>
Reviewed-by: Daniel Martí <mvdan@mvdan.cc>
Reviewed-by: Cherry Mui <cherryyz@google.com>
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2022-08-31 09:38:38 +00:00
Wayne Zuo
3680b5e9c4 cmd/compile: teach prove about bitwise OR operation
Fixes #45928.

Change-Id: Ifbb0effbca4ab7c0eb56069fee40edb564553c35
Reviewed-on: https://go-review.googlesource.com/c/go/+/410336
Reviewed-by: Cuong Manh Le <cuong.manhle.vn@gmail.com>
Run-TryBot: Wayne Zuo <wdvxdr@golangcn.org>
Reviewed-by: David Chase <drchase@google.com>
Reviewed-by: Than McIntosh <thanm@google.com>
TryBot-Result: Gopher Robot <gobot@golang.org>
2022-08-31 09:35:45 +00:00
Wayne Zuo
d2e0587f77 cmd/compile: derive relation between x+delta and x in prove
If x+delta cannot overflow/underflow, we can derive:
  x+delta < x if delta<0 (this CL included)
  x+delta > x if delta>0 (this CL not included due to
  a recursive stack overflow)

Remove 95 bounds checks during ./make.bat

Fixes #51622

Change-Id: I60d9bd84c5d7e81bbf808508afd09be596644f09
Reviewed-on: https://go-review.googlesource.com/c/go/+/406175
Reviewed-by: David Chase <drchase@google.com>
Reviewed-by: Keith Randall <khr@golang.org>
Run-TryBot: Wayne Zuo <wdvxdr@golangcn.org>
TryBot-Result: Gopher Robot <gobot@golang.org>
Reviewed-by: Heschi Kreinick <heschi@google.com>
2022-08-31 09:35:10 +00:00
Khaled Yakdan
6b113c0fec cmd/compile: avoid excessive libfuzzer instrumentation of int compares
Do not intercept integer compares that are used to increment libFuzzer's
8-bit counters. This is unnecessary and has a negative impact on the
fuzzing performance. This fixes #53760.

Change-Id: Id22efac968b18014eedabb6f0762e1456897024e
GitHub-Last-Rev: 52f69fd68c
GitHub-Pull-Request: golang/go#53786
Reviewed-on: https://go-review.googlesource.com/c/go/+/416796
Run-TryBot: Keith Randall <khr@golang.org>
Auto-Submit: Keith Randall <khr@golang.org>
TryBot-Result: Gopher Robot <gobot@golang.org>
Reviewed-by: Matthew Dempsky <mdempsky@google.com>
Reviewed-by: Keith Randall <khr@golang.org>
Reviewed-by: Keith Randall <khr@google.com>
2022-08-31 07:49:01 +00:00
shaoliming
2f103873c5 cmd/compile/internal/noder: reuse package scope's names
Change-Id: I2cc62efb7bb3b47f1ee3ed0bb77e35c47e2df9a1
GitHub-Last-Rev: 106cb494de
GitHub-Pull-Request: golang/go#54718
Reviewed-on: https://go-review.googlesource.com/c/go/+/426297
Run-TryBot: Keith Randall <khr@golang.org>
Reviewed-by: Keith Randall <khr@google.com>
Reviewed-by: Keith Randall <khr@golang.org>
TryBot-Result: Gopher Robot <gobot@golang.org>
Auto-Submit: Keith Randall <khr@golang.org>
Reviewed-by: Matthew Dempsky <mdempsky@google.com>
2022-08-31 06:12:44 +00:00
Cuong Manh Le
ee0e40aaef reflect: use cgo.Incomplete instead of go:notinheap in tests
go:notinheap will be replaced by runtime/internal/sys.NotInHeap, and for
longer term, we want to restrict all of its usages inside the runtime
package only.

Updates #46731

Change-Id: I267adc2a19f0dc8a1ed29b5b4aeec1a7dc7318d5
Reviewed-on: https://go-review.googlesource.com/c/go/+/421880
Run-TryBot: Cuong Manh Le <cuong.manhle.vn@gmail.com>
Reviewed-by: 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>
2022-08-31 01:16:54 +00:00
Keith Randall
bd56cb90a7 cmd/compile: regenerate node_gen.go
Looks like CL 413361 which added CaseClause.RTypes missed the need
to regenerate this file.

Also CL 413357 added DynamicTypeAssertExpr.SrcRType, same issue.

Change-Id: I45e4d0685cc2f9bdcef1fad2cfc92e7005ef363e
Reviewed-on: https://go-review.googlesource.com/c/go/+/426675
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>
2022-08-30 21:30:15 +00:00
cuiweixie
8a3d167f5b testing: increment tempDirSeq non-atomically
It's unnecessary to to call atomic.AddInt32 since there is a mutex lock.

Change-Id: I31fcece17c34f99a95772d744aebd3f6a8cf1d23
Reviewed-on: https://go-review.googlesource.com/c/go/+/426081
Reviewed-by: Michael Pratt <mpratt@google.com>
TryBot-Result: Gopher Robot <gobot@golang.org>
Run-TryBot: Bryan Mills <bcmills@google.com>
Reviewed-by: Bryan Mills <bcmills@google.com>
Reviewed-by: Heschi Kreinick <heschi@google.com>
Auto-Submit: Bryan Mills <bcmills@google.com>
2022-08-30 19:42:56 +00:00
Zeke Lu
3c6a5cdb9a cmd/go/internal/imports: recognize "unix" build tag
For #20322
For #51572
Fixes #54712

Change-Id: I22fcfa820e83323bfdf1a40deee7286240f02b3e
GitHub-Last-Rev: cd2c6536b0
GitHub-Pull-Request: golang/go#54716
Reviewed-on: https://go-review.googlesource.com/c/go/+/426296
Run-TryBot: Heschi Kreinick <heschi@google.com>
TryBot-Result: Gopher Robot <gobot@golang.org>
Reviewed-by: Heschi Kreinick <heschi@google.com>
Reviewed-by: Bryan Mills <bcmills@google.com>
2022-08-30 19:01:26 +00:00
Cuong Manh Le
f21514c7f8 cmd/compile: only inline method wrapper if method don't contain closures
CL 327871 changes methodWrapper to always perform inlining after global
escape analysis. However, inlining the method may reveal closures, which
require walking all function bodies to decide whether to capture free
variables by value or by ref.

To fix it, just not doing inline if the method contains any closures.

Fixes #53702

Change-Id: I4b0255b86257cc6fe7e5fafbc545cc5cff9113e1
Reviewed-on: https://go-review.googlesource.com/c/go/+/426334
Reviewed-by: Matthew Dempsky <mdempsky@google.com>
TryBot-Result: Gopher Robot <gobot@golang.org>
Run-TryBot: Cuong Manh Le <cuong.manhle.vn@gmail.com>
Reviewed-by: Heschi Kreinick <heschi@google.com>
2022-08-30 18:02:22 +00:00
Cuong Manh Le
ddc93a536f cmd/compile: fix unified IR shapifying recursive instantiated types
Shape-based stenciling in unified IR is done by converting type argument
to its underlying type. So it agressively check that type argument is
not a TFORW. However, for recursive instantiated type argument, it may
still be a TFORW when shapifying happens. Thus the assertion failed,
causing the compiler crashing.

To fix it, just allow fully instantiated type when shapifying.

Fixes #54512
Fixes #54722

Change-Id: I527e3fd696388c8a37454e738f0324f0c2ec16cb
Reviewed-on: https://go-review.googlesource.com/c/go/+/426335
TryBot-Result: Gopher Robot <gobot@golang.org>
Auto-Submit: Cuong Manh Le <cuong.manhle.vn@gmail.com>
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Reviewed-by: Heschi Kreinick <heschi@google.com>
Reviewed-by: Matthew Dempsky <mdempsky@google.com>
2022-08-30 17:23:27 +00:00
cuiweixie
c22865fcfa cmd/go: go clean should not accept flags like -modcache with packages
For #53725

Change-Id: I99a85b437d5f918dba74c4eccefcf8087193646a
Reviewed-on: https://go-review.googlesource.com/c/go/+/425874
Run-TryBot: Bryan Mills <bcmills@google.com>
Auto-Submit: Bryan Mills <bcmills@google.com>
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2022-08-30 17:22:49 +00:00
Archana R
67d85ad00f cmd/asm: add new classification for index memory operands on PPC64
When a base+displacement kind of operand is given in an index-mode
instruction, the assembler does not flag it as an invalid instruction
causing the user to get an incorrect encoding of that instruction
leading to incorrect execution of the program.
Enable assembler to recognize valid and invalid operands used in index
mode instructions by classifying SOREG type into two further types
XOREG (used uniquely in index addressing mode instructions) and SOREG
for instructions working on base+displacement operands.
Also cleaned up usage of obj.Addr.Scale on PPC64.

Change-Id: Ib4d84343ae57477c6c074f44c4c2749496e11b91
Reviewed-on: https://go-review.googlesource.com/c/go/+/405542
Reviewed-by: Lynn Boger <laboger@linux.vnet.ibm.com>
TryBot-Result: Gopher Robot <gobot@golang.org>
Reviewed-by: Heschi Kreinick <heschi@google.com>
Reviewed-by: Cherry Mui <cherryyz@google.com>
Run-TryBot: Archana Ravindar <aravind5@in.ibm.com>
2022-08-30 12:42:54 +00:00
Meng Zhuo
4381c61c58 crypto/sha512: optimize ARM64 sha512 implemention
This CL enable sha512 for arm64 and ~390% performance
improvement.

Contributed under the Go License with permission of
Linaro by Carlos Eduardo Seo <carlos.seo@linaro.org>

https://perf.golang.org/search?q=upload:20220526.18

Hash8Bytes/New		16.0MB/s ± 0%	61.3MB/s ± 0%	+283.97% (p=0.000 n=9+9)
Hash8Bytes/Sum384	16.4MB/s ± 0%	64.8MB/s ± 0%	+295.31% (p=0.000 n=8+9)
Hash8Bytes/Sum512	16.3MB/s ± 0%	64.2MB/s ± 0%	+293.37% (p=0.000 n=10+10)
Hash1K/New		252MB/s ± 0%	1217MB/s ± 0%	+383.00% (p=0.000 n=9+10)
Hash1K/Sum384		253MB/s ± 0%	1237MB/s ± 0%	+389.25% (p=0.000 n=10+10)
Hash1K/Sum512		253MB/s ± 0%	1231MB/s ± 0%	+387.37% (p=0.000 n=10+8)
Hash8K/New		284MB/s ± 0%	1405MB/s ± 2%	+395.19% (p=0.000 n=9+8)
Hash8K/Sum384		284MB/s ± 0%	1413MB/s ± 0%	+397.76% (p=0.000 n=10+8)
Hash8K/Sum512		284MB/s ± 0%	1411MB/s ± 0%	+397.19% (p=0.000 n=10+10)

Change-Id: I4476da23d8cd376bf1f75d946d6b0c58470df1b8
Reviewed-on: https://go-review.googlesource.com/c/go/+/180257
Reviewed-by: Carlos Eduardo Seo <carlos.seo@linaro.org>
Reviewed-by: Ard Biesheuvel <ardb@google.com>
Reviewed-by: Heschi Kreinick <heschi@google.com>
Reviewed-by: Filippo Valsorda <filippo@golang.org>
Run-TryBot: Meng Zhuo <mzh@golangcn.org>
TryBot-Result: Gopher Robot <gobot@golang.org>
2022-08-30 03:43:15 +00:00
Wayne Zuo
e8f0340fa4 cmd/compile: intrinsify RotateLeft{32,64} on loong64
Benchmark on crypto/sha256 (provided by Xiaodong Liu):
name               old time/op    new time/op    delta
Hash8Bytes/New       1.19µs ± 0%    0.97µs ± 0%  -18.75%  (p=0.000 n=9+9)
Hash8Bytes/Sum224    1.21µs ± 0%    0.97µs ± 0%  -20.04%  (p=0.000 n=9+10)
Hash8Bytes/Sum256    1.21µs ± 0%    0.98µs ± 0%  -19.16%  (p=0.000 n=10+7)
Hash1K/New           15.9µs ± 0%    12.4µs ± 0%  -22.10%  (p=0.000 n=10+10)
Hash1K/Sum224        15.9µs ± 0%    12.4µs ± 0%  -22.18%  (p=0.000 n=8+10)
Hash1K/Sum256        15.9µs ± 0%    12.4µs ± 0%  -22.15%  (p=0.000 n=10+9)
Hash8K/New            119µs ± 0%      92µs ± 0%  -22.40%  (p=0.000 n=10+9)
Hash8K/Sum224         119µs ± 0%      92µs ± 0%  -22.41%  (p=0.000 n=9+10)
Hash8K/Sum256         119µs ± 0%      92µs ± 0%  -22.40%  (p=0.000 n=9+9)

name               old speed      new speed      delta
Hash8Bytes/New     6.70MB/s ± 0%  8.25MB/s ± 0%  +23.13%  (p=0.000 n=10+10)
Hash8Bytes/Sum224  6.60MB/s ± 0%  8.26MB/s ± 0%  +25.06%  (p=0.000 n=10+10)
Hash8Bytes/Sum256  6.59MB/s ± 0%  8.15MB/s ± 0%  +23.67%  (p=0.000 n=10+7)
Hash1K/New         64.3MB/s ± 0%  82.5MB/s ± 0%  +28.36%  (p=0.000 n=10+10)
Hash1K/Sum224      64.3MB/s ± 0%  82.6MB/s ± 0%  +28.51%  (p=0.000 n=10+10)
Hash1K/Sum256      64.3MB/s ± 0%  82.6MB/s ± 0%  +28.46%  (p=0.000 n=9+9)
Hash8K/New         69.0MB/s ± 0%  89.0MB/s ± 0%  +28.87%  (p=0.000 n=10+8)
Hash8K/Sum224      69.0MB/s ± 0%  89.0MB/s ± 0%  +28.88%  (p=0.000 n=9+10)
Hash8K/Sum256      69.0MB/s ± 0%  88.9MB/s ± 0%  +28.87%  (p=0.000 n=8+9)

Benchmark on crypto/sha512 (provided by Xiaodong Liu):
name               old time/op    new time/op     delta
Hash8Bytes/New       1.55µs ± 0%     1.31µs ± 0%  -15.67%  (p=0.000 n=10+10)
Hash8Bytes/Sum384    1.59µs ± 0%     1.35µs ± 0%  -14.97%  (p=0.000 n=10+10)
Hash8Bytes/Sum512    1.62µs ± 0%     1.39µs ± 0%  -14.02%  (p=0.000 n=10+10)
Hash1K/New           10.7µs ± 0%      8.6µs ± 0%  -19.60%  (p=0.000 n=8+8)
Hash1K/Sum384        10.8µs ± 0%      8.7µs ± 0%  -19.40%  (p=0.000 n=9+9)
Hash1K/Sum512        10.8µs ± 0%      8.7µs ± 0%  -19.35%  (p=0.000 n=9+10)
Hash8K/New           74.6µs ± 0%     59.6µs ± 0%  -20.08%  (p=0.000 n=10+9)
Hash8K/Sum384        74.7µs ± 0%     59.7µs ± 0%  -20.04%  (p=0.000 n=9+8)
Hash8K/Sum512        74.7µs ± 0%     59.7µs ± 0%  -20.01%  (p=0.000 n=10+10)

name               old speed      new speed       delta
Hash8Bytes/New     5.16MB/s ± 0%   6.12MB/s ± 0%  +18.60%  (p=0.000 n=10+8)
Hash8Bytes/Sum384  5.02MB/s ± 0%   5.90MB/s ± 0%  +17.56%  (p=0.000 n=10+10)
Hash8Bytes/Sum512  4.94MB/s ± 0%   5.74MB/s ± 0%  +16.29%  (p=0.000 n=10+9)
Hash1K/New         95.4MB/s ± 0%  118.6MB/s ± 0%  +24.38%  (p=0.000 n=10+10)
Hash1K/Sum384      95.0MB/s ± 0%  117.9MB/s ± 0%  +24.06%  (p=0.000 n=8+9)
Hash1K/Sum512      94.8MB/s ± 0%  117.5MB/s ± 0%  +23.99%  (p=0.000 n=8+9)
Hash8K/New          110MB/s ± 0%    137MB/s ± 0%  +25.11%  (p=0.000 n=9+6)
Hash8K/Sum384       110MB/s ± 0%    137MB/s ± 0%  +25.07%  (p=0.000 n=9+8)
Hash8K/Sum512       110MB/s ± 0%    137MB/s ± 0%  +25.01%  (p=0.000 n=10+10)

Change-Id: I28ccfce634659305a336c8e0a3f8589f7361d661
Reviewed-on: https://go-review.googlesource.com/c/go/+/422317
Reviewed-by: Keith Randall <khr@golang.org>
Run-TryBot: Wayne Zuo <wdvxdr@golangcn.org>
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2022-08-30 03:21:44 +00:00
Wayne Zuo
7d574466a9 cmd/internal/obj/loong64: add ROTR, ROTRV instructions support
Reference: https://loongson.github.io/LoongArch-Documentation/LoongArch-Vol1-EN.html

Change-Id: I29adb84eb70bffd963c79ed6957a5197896fb2bf
Reviewed-on: https://go-review.googlesource.com/c/go/+/422316
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2022-08-30 03:21:06 +00:00
Cuong Manh Le
629ae1cee6 cmd/compile: fix wrong position when rewriting to OpArg/OpArgXXX
When spilling arg to stack or register, if it's a newly created value,
the arg position should be preserved. Otherwise, we may end up using
position information from deadcode lines.

This fixes the minimized test case in #54625 by mdempsky@, and make
building std successfully. However, the inline trees for these tests
still be corrupted:

 - fixedbugs/issue53982.go
 - typeparam/issue47775.go
 - typeparam/issue47775b.go
 - typeparam/issue49432.go

We probably still mess up the inline position somewhere else.

Updates #54625

Change-Id: I0d87e26b9ab451b85b6e79787da74a2b79a16209
Reviewed-on: https://go-review.googlesource.com/c/go/+/425785
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2022-08-30 00:49:19 +00:00
Cuong Manh Le
47f8db368c reflect: clarify Value.Equal behavior for non-comparable values
The current implementation always returns false for non-comparable
values, update the doc to reflect that.

Change-Id: I87f2da408874b0a209c8f51949e3310da15c5904
Reviewed-on: https://go-review.googlesource.com/c/go/+/426195
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2022-08-30 00:37:15 +00:00
Bryan C. Mills
65535581aa cmd/go: skip gccgo cgo tests in TestScript/build_overlay
cgo builds with -compiler=gccgo are broken as of CL 421879.

For #54761.
Updates #46731.

Change-Id: I0306b0bd96669f70279fc96814cc72d934a1ad6e
Reviewed-on: https://go-review.googlesource.com/c/go/+/426496
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2022-08-29 22:04:21 +00:00
Bryan C. Mills
7b689dcbef cmd/go/internal/modfetch: distinguish "unsupported" errors from RecentTag
CL 426079 started checking errors from RecentTag.
Unfortunately, we forgot to run "-longtest" SlowBots, and it turns out
to have broken non-short tests for non-git VCS implementations,
because those don't implement the RecentTag method.

Updates #53935.

Change-Id: I5935f2f4b3f684515e99e8bf70a840154c36249f
Reviewed-on: https://go-review.googlesource.com/c/go/+/426495
Run-TryBot: Bryan Mills <bcmills@google.com>
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2022-08-29 21:29:04 +00:00
cuiweixie
2113fefe7d context: convert goroutines to atomic type
Change-Id: I021fbc9786a3e3f858770fe3e109a0de487390d8
Reviewed-on: https://go-review.googlesource.com/c/go/+/426089
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2022-08-29 20:21:48 +00:00
cuiweixie
fd2ac5ef96 testing: convert common.hasSub to atomic type
Change-Id: I3d8a9b901efabe62f432c06361826f46c78d2605
Reviewed-on: https://go-review.googlesource.com/c/go/+/426080
Reviewed-by: Bryan Mills <bcmills@google.com>
Reviewed-by: Michael Pratt <mpratt@google.com>
Run-TryBot: Michael Pratt <mpratt@google.com>
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2022-08-29 20:19:15 +00:00
Joe Tsai
b0144b3843 sync: switch Map to use atomic.Pointer
There was no noticeable change in performance.

Change-Id: I9c57bf836c8b6066e0620afb3d536ce99e4b9d87
Reviewed-on: https://go-review.googlesource.com/c/go/+/426074
Reviewed-by: Bryan Mills <bcmills@google.com>
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2022-08-29 20:09:02 +00:00
Dan Kortschak
36d1f23661 debug/macho: use saferio to allocate Load and Symbol slices
Avoid allocating large amounts of memory for corrupt input.

No test case because the problem can only happen for invalid data.
Let the fuzzer find cases like this.

Change-Id: I2d1745200611f0af06ca58adcc3e2309ad6742d8
Reviewed-on: https://go-review.googlesource.com/c/go/+/425882
Run-TryBot: Dan Kortschak <dan@kortschak.io>
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2022-08-29 20:08:15 +00:00
byarbrough
f3a1f9220a testing: explain using a _test package
The existing documentation did not explain the difference between
placing a _test.go file in the same package as what is being
tested vs. adding it to a separate _test package. This explains the
distinction and adds an example.

Concept is explained well here:  https://stackoverflow.com/a/31443271

Fixes #25223

Change-Id: Iebaba15207d8aa24f0b370d8dd4062eadb504b5c
GitHub-Last-Rev: 7f49c5f462
GitHub-Pull-Request: golang/go#54160
Reviewed-on: https://go-review.googlesource.com/c/go/+/420415
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2022-08-29 20:08:10 +00:00
Andy Pan
c108a682ff internal/poll: use sync.Once instead to guard CopyFileRange() with kernel 5.3
The existing implementation creates more branches with more states: -1, 0, 1,
which makes it not very intuitive to understand, let's use sync.Once and boolean
instead to make it more straightforward.

Change-Id: I05766e5fdf7dba37d6565f84d3db4373f9342fe5
Reviewed-on: https://go-review.googlesource.com/c/go/+/425880
Run-TryBot: Ian Lance Taylor <iant@google.com>
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2022-08-29 20:06:09 +00:00
Tobias Klauser
9da49a7d2e time: use internal/itoa
In initLocal for GOOS=js, use internal/itoa introduced in CL 301549
instead of a local implementation.

Change-Id: If107d5cf0ce56f4d926507db2cbd6da422c6d15a
Reviewed-on: https://go-review.googlesource.com/c/go/+/425302
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2022-08-29 20:05:34 +00:00
Dan Kortschak
dbd0ce84d7 debug/elf: validate offset and file size ranges
Change-Id: Iebe31b91c6e81438120f50a8089a8efca3d5339d
Reviewed-on: https://go-review.googlesource.com/c/go/+/426115
Run-TryBot: Dan Kortschak <dan@kortschak.io>
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2022-08-29 20:04:56 +00:00
Andy Pan
59bdbb3eff net: add the missing OS Darwin in the comment of sendFile
Change-Id: Ice7e3762d4a1d71e23d619be699697f5c6523cc5
Reviewed-on: https://go-review.googlesource.com/c/go/+/425879
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2022-08-29 20:04:53 +00:00
Zeke Lu
5cfeaed4de cmd/go/internal/modfetch: report error on failing to derive pseudo version from recent tag
The current implementation ignores the error when it tries to get
the recent tag on revisions, which results in incorrect pseudo
version (v0.0.0-) is derived.

Fixes #53935

Change-Id: I153d851eb913fb7e40051e194c92b9ca5bf0e906
GitHub-Last-Rev: 6ba1d90df5
GitHub-Pull-Request: golang/go#54701
Reviewed-on: https://go-review.googlesource.com/c/go/+/426079
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2022-08-29 19:38:15 +00:00
Joe Tsai
4029124cf4 time: add fuzz test for Time.appendFormatRFC3339
Time.appendFormatRFC3339 is a specialized implementation of
Time.appendFormat. We expect the two to be identical.
Add a fuzz test to ensure this property.

Updates #54093

Change-Id: I0bc41ee6e016d3dac75d1ac372d8c9c7266d0299
Reviewed-on: https://go-review.googlesource.com/c/go/+/425100
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Run-TryBot: Ian Lance Taylor <iant@google.com>
2022-08-29 19:29:37 +00:00
Ikko Ashimine
68b10c2bb8 internal/trace: fix typo in goroutines.go
assosciated -> associated

Change-Id: Id1cbbdea12f0239a9e173ece934c18cc9ffcf0f4
GitHub-Last-Rev: 7fea9de6c2
GitHub-Pull-Request: golang/go#54739
Reviewed-on: https://go-review.googlesource.com/c/go/+/425596
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Reviewed-by: Michael Knyszek <mknyszek@google.com>
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2022-08-29 19:23:57 +00:00
Pascal S. de Kloe
0e16d67a56 net/http: FileServer method check + minimal OPTIONS implementation
FileServer provides a read-only service. Methods other than GET or HEAD should
be denied with an Allow header.

Fixes #53501

Change-Id: I1d31b405eefd90565ecd474ac3f8d8d6e3b15072
Reviewed-on: https://go-review.googlesource.com/c/go/+/413554
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2022-08-29 17:12:01 +00:00
eric fang
eeb1ba7a89 cmd/compile/obj/arm64: fix encoding error of FMOVD/FMOVS $0|ZR
Previously the first operand of FMOVD and FMOVS could be $0, which
would be converted to the ZR register. This is prohibited by CL 404316,
also it broken the encoding of "FMOVD/FMOVS ZR, Rn", this CL restores
this instruction format and fixes the encoding issue.

Fixes #54655.
Fixes #54729.

Change-Id: I9c42cd41296bed7ffd601609bd8ecaa27d11e659
Reviewed-on: https://go-review.googlesource.com/c/go/+/425188
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2022-08-29 17:03:10 +00:00
Cuong Manh Le
7393049780 reflect: simplify array value comparable check
If array element is not interface, array or struct, we just need to
check whether the array element type is comparable.

Change-Id: I1ab94cfa17ae86feb6cd3fbdf878af5a776e7bec
Reviewed-on: https://go-review.googlesource.com/c/go/+/426194
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2022-08-29 16:39:37 +00:00
Nigel Tao
63e129ba1c image/png: allow both PLTE and tRNS chunks for TrueColor
Prior to this commit, png.Decode would allow TrueColor PNG images that
have one but not both of PLTE and tRNS chunks.

Fixes #54142

Change-Id: I259c1fff86a0aa5640dbadf7ad834e05fbd1430c
Reviewed-on: https://go-review.googlesource.com/c/go/+/424916
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2022-08-29 15:11:31 +00:00
cuiweixie
a1c9783ca1 testing: convert numFailed to atomic type
Change-Id: Ic3464e95ad8901df5477d7717760b8c6d08ce97b
Reviewed-on: https://go-review.googlesource.com/c/go/+/426078
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2022-08-29 14:52:44 +00:00
ianwoolf
863d57cc7d cmd/go/internal/modload: return error when duplicate module paths among modules in go.work
Fixes #54048

Change-Id: I27350af451ff50532856092f2d99b6cc6dc6743d
Reviewed-on: https://go-review.googlesource.com/c/go/+/419557
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2022-08-29 14:48:48 +00:00
David Chase
7f92ccea5c debug/pe: check size in uint64 to avoid overflow
uint32(sz) != n*uint32(ddSz) can go wrong if
the RHS overflows, so do it in wider precision.

Fixes #54640.

Change-Id: I776563330e46de6cdacd4055f6ff08e7de67797f
Reviewed-on: https://go-review.googlesource.com/c/go/+/425364
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2022-08-29 01:35:52 +00:00
Cuong Manh Le
846c378b8c cmd/cgo: add and use runtime/cgo.Incomplete instead of //go:notinheap
Updates #46731

Change-Id: Ia83f27c177cc2f57e240cb5c6708d4552423f5be
Reviewed-on: https://go-review.googlesource.com/c/go/+/421879
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2022-08-28 16:04:49 +00:00