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63793 commits

Author SHA1 Message Date
David Chase
09ff25e350 [dev.simd] simd: add tests for simd conversions to Int32/Uint32.
Change-Id: I71a6c6708e19d210f1fbdc72379f8215356ff02e
Reviewed-on: https://go-review.googlesource.com/c/go/+/689718
Reviewed-by: Junyang Shao <shaojunyang@google.com>
LUCI-TryBot-Result: Go LUCI <golang-scoped@luci-project-accounts.iam.gserviceaccount.com>
2025-08-01 14:14:59 -07:00
David Chase
a24ffe3379 [dev.simd] simd: modify test generation to make it more flexible
This is to support conversions, which are not T -> T.

Change-Id: I323887b116eee8133770a899ed82363bba38a9c4
Reviewed-on: https://go-review.googlesource.com/c/go/+/689717
Reviewed-by: Cherry Mui <cherryyz@google.com>
LUCI-TryBot-Result: Go LUCI <golang-scoped@luci-project-accounts.iam.gserviceaccount.com>
2025-08-01 14:14:47 -07:00
David Chase
ec5c20ba5a [dev.simd] cmd/compile: generated simd code to add some conversions
Generated by arch/internal/simdgen CL 689735

A small number of conversions for testing purposes

Change-Id: I4d52c643d08c02794c3fea9778bb1ecbb5507de4
Reviewed-on: https://go-review.googlesource.com/c/go/+/689716
Reviewed-by: Junyang Shao <shaojunyang@google.com>
LUCI-TryBot-Result: Go LUCI <golang-scoped@luci-project-accounts.iam.gserviceaccount.com>
2025-08-01 14:14:27 -07:00
David Chase
e62e377ed6 [dev.simd] cmd/compile, simd: generated code from repaired simdgen sort
generated by simdgen CL 689655
(which names a different CL, because it was submitted before realizing
that git had lost a from a stack, somehow)

Change-Id: Iab2868e848c221de98995ba0c632f97e2ee97670
Reviewed-on: https://go-review.googlesource.com/c/go/+/692336
Reviewed-by: Junyang Shao <shaojunyang@google.com>
LUCI-TryBot-Result: Go LUCI <golang-scoped@luci-project-accounts.iam.gserviceaccount.com>
2025-08-01 14:12:56 -07:00
David Chase
761894d4a5 [dev.simd] simd: add partial slice load/store for 32/64-bits on AVX2
These all use int-vector-masked loads and stores.
Partial set of tests (for all NxK shapes, thought not all types).

Change-Id: I8f493aaa9228647e08ea5badb06dcfe716d6925d
Reviewed-on: https://go-review.googlesource.com/c/go/+/689336
LUCI-TryBot-Result: Go LUCI <golang-scoped@luci-project-accounts.iam.gserviceaccount.com>
Reviewed-by: Junyang Shao <shaojunyang@google.com>
2025-08-01 13:11:10 -07:00
David Chase
acc1492b7d [dev.simd] cmd/compile: Generated code for AVX2 SIMD masked load/store
This adds to the change in the earlier dev.simd CL.
Generated by arch/internal/simdgen CL 689276 .

Also includes one test for "it at least works once".

Change-Id: I44a268cfc3bea06c5522ac2cfa04fe13a833e1dd
Reviewed-on: https://go-review.googlesource.com/c/go/+/689335
Reviewed-by: Junyang Shao <shaojunyang@google.com>
LUCI-TryBot-Result: Go LUCI <golang-scoped@luci-project-accounts.iam.gserviceaccount.com>
2025-08-01 13:09:29 -07:00
David Chase
a0b87a7478 [dev.simd] cmd/compile: changes for AVX2 SIMD masked load/store
This is "glue" changes and hand work for the AVX2
masked loads/stores.  Does not include generated
function/method declarations or intrinsic registration.

Change-Id: Ic95f90b117d0c471f174407ce3f729f1f517b23c
Reviewed-on: https://go-review.googlesource.com/c/go/+/689295
Reviewed-by: Junyang Shao <shaojunyang@google.com>
LUCI-TryBot-Result: Go LUCI <golang-scoped@luci-project-accounts.iam.gserviceaccount.com>
2025-08-01 13:08:54 -07:00
David Chase
88568519b4 [dev.simd] simd: move test generation into Go repo
This pairs with CL 689275 which removes test generation from simdgen

This uses generics and attempts to encode the tests as compactly as
possible.

Some files, *_helpers_test.go, are generated.

Use t.Helper() to get the line number right for a failure.

Adds helper error return values and early exits to only report a
single test failure per operations and vector shape, for the
generated test failures.

Include the entire got and wanted vectors for that failure.

Provide an option to include the input vectors to failures, also
report the type of the test.

Sample failure test output (obtained by intentionally breaking
the "want" value for AndNot):

=== RUN   TestAndNot
    binary_test.go:214: For int16 vector elements:
    binary_test.go:214: got =[0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0]
    binary_test.go:214: want=[-1 -1 -1 -1 -1 -1 -1 -1 -1 -1 -1 -1 -1 -1 -1 -1]
    binary_test.go:214: x=[1 -1 0 2 4 8 1024 3 5 7 11 13 3000 5555 7777 11111]
    binary_test.go:214: y=[1 -1 0 2 4 8 1024 3 5 7 11 13 3000 5555 7777 11111]
    binary_test.go:214: at index 0, got=0, want=-1
    binary_test.go:215: For int16 vector elements:
    binary_test.go:215: got =[0 0 0 0 0 0 0 0]
    binary_test.go:215: want=[-1 -1 -1 -1 -1 -1 -1 -1]
    binary_test.go:215: x=[1 -1 0 2 4 8 1024 3]
    binary_test.go:215: y=[1 -1 0 2 4 8 1024 3]
    binary_test.go:215: at index 0, got=0, want=-1
    binary_test.go:216: For int32 vector elements:
    binary_test.go:216: got =[0 0 0 0]
    binary_test.go:216: want=[-1 -1 -1 -1]
    binary_test.go:216: x=[1 -1 0 2]
    binary_test.go:216: y=[1 -1 0 2]
    binary_test.go:216: at index 0, got=0, want=-1
(etc)

Change-Id: I0f6ee8390ebe7a2333002e9415b4d71527fa3c38
Reviewed-on: https://go-review.googlesource.com/c/go/+/686057
Reviewed-by: Junyang Shao <shaojunyang@google.com>
LUCI-TryBot-Result: Go LUCI <golang-scoped@luci-project-accounts.iam.gserviceaccount.com>
Reviewed-by: Cherry Mui <cherryyz@google.com>
2025-08-01 13:08:31 -07:00
Roy Reznik
4ab1aec007 cmd/go: modload should use a read-write lock to improve concurrency
This PR will be imported into Gerrit with the title and first
comment (this text) used to generate the subject and body of
the Gerrit change.

Change-Id: I3f9bc8a2459059a924a04fa02794e258957819b5
GitHub-Last-Rev: 6ad6f6a70e
GitHub-Pull-Request: golang/go#74311
Reviewed-on: https://go-review.googlesource.com/c/go/+/683215
Reviewed-by: Michael Matloob <matloob@golang.org>
Reviewed-by: Ian Alexander <jitsu@google.com>
Reviewed-by: Michael Matloob <matloob@google.com>
LUCI-TryBot-Result: Go LUCI <golang-scoped@luci-project-accounts.iam.gserviceaccount.com>
2025-08-01 11:56:27 -07:00
qmuntal
e666972a67 runtime: deduplicate Windows stdcall
There is no need to have a dedicated stdcall variant for each
number of arguments. Instead, we can use a variadic function
that accepts any number of arguments and handles them uniformly.

While here, improve documentation of syscall_syscalln to make it clear
that it should not be used within the runtime package.

Change-Id: I022afc7f28d969fd7307bb2b1f4594246ac38d18
Reviewed-on: https://go-review.googlesource.com/c/go/+/691215
LUCI-TryBot-Result: Go LUCI <golang-scoped@luci-project-accounts.iam.gserviceaccount.com>
Reviewed-by: Michael Pratt <mpratt@google.com>
Reviewed-by: Mark Freeman <mark@golang.org>
2025-08-01 09:05:13 -07:00
qmuntal
ef40549786 runtime,syscall: move loadlibrary and getprocaddress to syscall
There is no need for loadlibrary, loadsystemlibrary and getprocaddress
to be implemented in the runtime and linknamed from syscall.

Change-Id: Icefd53a8e8f7012ed0c94c356be4179d5e45a01b
Reviewed-on: https://go-review.googlesource.com/c/go/+/690516
Reviewed-by: Mark Freeman <mark@golang.org>
Reviewed-by: Michael Pratt <mpratt@google.com>
LUCI-TryBot-Result: Go LUCI <golang-scoped@luci-project-accounts.iam.gserviceaccount.com>
2025-08-01 09:05:06 -07:00
qmuntal
336931a4ca cmd/go: use os.Rename to move files on Windows
The Go toolchain has been copying files instead of moving them on
Windows since CL 72910. It did this because os.Rename doesn't respect
the destination directory ACL permissions, and we want to honor them.

The drawback is that copying files is slower than moving them.

This CL reintroduces the use of os.Rename, but it also sets the
destination file's ACL to inherit the permissions from the
destination directory.

On my computer this change speeds up a simple "go build" (with warm
cache) by 1 second, going from 3 seconds to 2 seconds.

Updates #22343

Change-Id: I65b2b6f301e9e18bf2588959764eb06b9a01dfa2
Reviewed-on: https://go-review.googlesource.com/c/go/+/691255
Reviewed-by: Mark Freeman <mark@golang.org>
LUCI-TryBot-Result: Go LUCI <golang-scoped@luci-project-accounts.iam.gserviceaccount.com>
Reviewed-by: Damien Neil <dneil@google.com>
2025-08-01 09:04:50 -07:00
Keith Randall
eef5f8d930 cmd/compile: enforce that locals are always accessed with SP base register
After CL 678937, we could have a situation where the value of the
stack pointer is in both SP and another register. We need to make sure
that regalloc picks SP when issuing a reference to local variables;
the assembler expects that.

Fixes #74836

Change-Id: I2ac73ece6eb44b4a78c1369f8a69e51ab9748754
Reviewed-on: https://go-review.googlesource.com/c/go/+/692395
Reviewed-by: Cuong Manh Le <cuong.manhle.vn@gmail.com>
Reviewed-by: Keith Randall <khr@google.com>
Reviewed-by: Mark Freeman <mark@golang.org>
LUCI-TryBot-Result: Go LUCI <golang-scoped@luci-project-accounts.iam.gserviceaccount.com>
2025-08-01 08:57:29 -07:00
Xiaolin Zhao
e071617222 cmd/compile: optimize multiplication rules on loong64
Improve multiplication strength reduction, refer to CL 626998,
add additional 3 linear combination instructions for loong64.

goos: linux
goarch: loong64
pkg: cmd/compile/internal/test
cpu: Loongson-3A6000-HV @ 2500.00MHz
                  |  bench.old   |              bench.new               |
                  |    sec/op    |    sec/op     vs base                |
MulconstI32/3       1.6010n ± 0%   0.8005n ± 0%  -50.00% (p=0.000 n=10)
MulconstI32/5       1.6010n ± 0%   0.8005n ± 0%  -50.00% (p=0.000 n=10)
MulconstI32/12       1.601n ± 0%    1.201n ± 0%  -24.98% (p=0.000 n=10)
MulconstI32/120     1.6010n ± 0%   0.8130n ± 0%  -49.22% (p=0.000 n=10)
MulconstI32/-120    1.6010n ± 0%   0.8109n ± 0%  -49.35% (p=0.000 n=10)
MulconstI32/65537   1.6275n ± 0%   0.8005n ± 0%  -50.81% (p=0.000 n=10)
MulconstI32/65538   1.6290n ± 0%   0.8004n ± 0%  -50.87% (p=0.000 n=10)
MulconstI64/3       1.6010n ± 0%   0.8004n ± 0%  -50.01% (p=0.000 n=10)
MulconstI64/5       1.6010n ± 0%   0.8004n ± 0%  -50.01% (p=0.000 n=10)
MulconstI64/12       1.601n ± 0%    1.201n ± 0%  -24.98% (p=0.000 n=10)
MulconstI64/120     1.6010n ± 0%   0.8005n ± 0%  -50.00% (p=0.000 n=10)
MulconstI64/-120    1.6010n ± 0%   0.8005n ± 0%  -50.00% (p=0.000 n=10)
MulconstI64/65537   1.6270n ± 0%   0.8005n ± 0%  -50.80% (p=0.000 n=10)
MulconstI64/65538   1.6290n ± 0%   0.8071n ± 1%  -50.45% (p=0.000 n=10)
MulconstU32/3       1.6010n ± 0%   0.8004n ± 0%  -50.01% (p=0.000 n=10)
MulconstU32/5       1.6010n ± 0%   0.8004n ± 0%  -50.01% (p=0.000 n=10)
MulconstU32/12       1.601n ± 0%    1.201n ± 0%  -24.98% (p=0.000 n=10)
MulconstU32/120     1.6010n ± 0%   0.8066n ± 0%  -49.62% (p=0.000 n=10)
MulconstU32/65537   1.6290n ± 0%   0.8005n ± 0%  -50.86% (p=0.000 n=10)
MulconstU32/65538   1.6280n ± 0%   0.8005n ± 0%  -50.83% (p=0.000 n=10)
MulconstU64/3       1.6010n ± 0%   0.8005n ± 0%  -50.00% (p=0.000 n=10)
MulconstU64/5       1.6010n ± 0%   0.8005n ± 0%  -50.00% (p=0.000 n=10)
MulconstU64/12       1.601n ± 0%    1.201n ± 0%  -24.98% (p=0.000 n=10)
MulconstU64/120     1.6010n ± 0%   0.8005n ± 0%  -50.00% (p=0.000 n=10)
MulconstU64/65537   1.6290n ± 0%   0.8005n ± 0%  -50.86% (p=0.000 n=10)
MulconstU64/65538   1.6300n ± 0%   0.8067n ± 0%  -50.51% (p=0.000 n=10)
geomean              1.609n        0.8537n       -46.95%

goos: linux
goarch: loong64
pkg: cmd/compile/internal/test
cpu: Loongson-3A5000 @ 2500.00MHz
                  |  bench.old   |              bench.new               |
                  |    sec/op    |    sec/op     vs base                |
MulconstI32/3       1.6010n ± 0%   0.8007n ± 0%  -49.99% (p=0.000 n=10)
MulconstI32/5       1.6010n ± 0%   0.8007n ± 0%  -49.99% (p=0.000 n=10)
MulconstI32/12       1.601n ± 0%    1.202n ± 0%  -24.92% (p=0.000 n=10)
MulconstI32/120     1.6020n ± 0%   0.8012n ± 0%  -49.99% (p=0.000 n=10)
MulconstI32/-120    1.6010n ± 0%   0.8007n ± 0%  -49.99% (p=0.000 n=10)
MulconstI32/65537   1.6020n ± 0%   0.8007n ± 0%  -50.02% (p=0.000 n=10)
MulconstI32/65538   1.6010n ± 0%   0.8007n ± 0%  -49.99% (p=0.000 n=10)
MulconstI64/3       1.6015n ± 0%   0.8007n ± 0%  -50.00% (p=0.000 n=10)
MulconstI64/5       1.6020n ± 0%   0.8007n ± 0%  -50.02% (p=0.000 n=10)
MulconstI64/12       1.602n ± 0%    1.202n ± 0%  -25.00% (p=0.000 n=10)
MulconstI64/120     1.6030n ± 0%   0.8011n ± 0%  -50.02% (p=0.000 n=10)
MulconstI64/-120    1.6020n ± 0%   0.8007n ± 0%  -50.02% (p=0.000 n=10)
MulconstI64/65537   1.6010n ± 0%   0.8007n ± 0%  -49.99% (p=0.000 n=10)
MulconstI64/65538   1.6010n ± 0%   0.8007n ± 0%  -49.99% (p=0.000 n=10)
MulconstU32/3       1.6010n ± 0%   0.8006n ± 0%  -49.99% (p=0.000 n=10)
MulconstU32/5       1.6010n ± 0%   0.8007n ± 0%  -49.99% (p=0.000 n=10)
MulconstU32/12       1.601n ± 0%    1.202n ± 0%  -24.92% (p=0.000 n=10)
MulconstU32/120     1.6010n ± 0%   0.8006n ± 0%  -49.99% (p=0.000 n=10)
MulconstU32/65537   1.6010n ± 0%   0.8007n ± 0%  -49.99% (p=0.000 n=10)
MulconstU32/65538   1.6020n ± 0%   0.8009n ± 0%  -50.01% (p=0.000 n=10)
MulconstU64/3       1.6010n ± 0%   0.8007n ± 0%  -49.99% (p=0.000 n=10)
MulconstU64/5       1.6010n ± 0%   0.8007n ± 0%  -49.98% (p=0.000 n=10)
MulconstU64/12       1.601n ± 0%    1.201n ± 0%  -24.98% (p=0.000 n=10)
MulconstU64/120     1.6020n ± 0%   0.8007n ± 0%  -50.02% (p=0.000 n=10)
MulconstU64/65537   1.6010n ± 0%   0.8007n ± 0%  -49.99% (p=0.000 n=10)
MulconstU64/65538   1.6010n ± 0%   0.8007n ± 0%  -49.99% (p=0.000 n=10)
geomean              1.601n        0.8523n       -46.77%

Change-Id: I9fb0e47ca57875da171a347bf4828adfab41b875
Reviewed-on: https://go-review.googlesource.com/c/go/+/675455
Reviewed-by: Mark Freeman <mark@golang.org>
Reviewed-by: abner chenc <chenguoqi@loongson.cn>
Reviewed-by: Keith Randall <khr@google.com>
Reviewed-by: Keith Randall <khr@golang.org>
LUCI-TryBot-Result: Go LUCI <golang-scoped@luci-project-accounts.iam.gserviceaccount.com>
Auto-Submit: Keith Randall <khr@golang.org>
2025-08-01 08:42:40 -07:00
Keith Randall
eb7f515c4d cmd/compile: use generated loops instead of DUFFZERO on amd64
goarch: amd64
cpu: 12th Gen Intel(R) Core(TM) i7-12700
                        │     base      │                 exp                 │
                        │    sec/op     │   sec/op     vs base                │
MemclrKnownSize112-20      1.270n ± 14%   1.006n ± 0%  -20.72% (p=0.000 n=10)
MemclrKnownSize128-20      1.266n ±  0%   1.005n ± 0%  -20.58% (p=0.000 n=10)
MemclrKnownSize192-20      1.771n ±  0%   1.579n ± 1%  -10.84% (p=0.000 n=10)
MemclrKnownSize248-20      4.034n ±  0%   3.520n ± 0%  -12.75% (p=0.000 n=10)
MemclrKnownSize256-20      2.269n ±  0%   2.014n ± 0%  -11.26% (p=0.000 n=10)
MemclrKnownSize512-20      4.280n ±  0%   4.030n ± 0%   -5.84% (p=0.000 n=10)
MemclrKnownSize1024-20     8.309n ±  1%   8.057n ± 0%   -3.03% (p=0.000 n=10)

Change-Id: I8f1627e2a1e981ff351dc7178932b32a2627f765
Reviewed-on: https://go-review.googlesource.com/c/go/+/678937
Reviewed-by: Keith Randall <khr@google.com>
Reviewed-by: Cherry Mui <cherryyz@google.com>
LUCI-TryBot-Result: Go LUCI <golang-scoped@luci-project-accounts.iam.gserviceaccount.com>
2025-07-31 17:12:39 -07:00
Junyang Shao
6f7a1164e7 [dev.simd] cmd/compile, simd: support store to bits for mask
This CL is partially generated by CL 689775.

Change-Id: I0c36fd2a44706c88db1a1d5ea4a6d0b9f891d85f
Reviewed-on: https://go-review.googlesource.com/c/go/+/689795
Reviewed-by: David Chase <drchase@google.com>
LUCI-TryBot-Result: Go LUCI <golang-scoped@luci-project-accounts.iam.gserviceaccount.com>
2025-07-31 15:44:39 -07:00
Michael Matloob
c0ee2fd4e3 cmd/go: explicitly reject module paths "go" and "toolchain"
The module paths "go" and "toolchain" are reserved for the dependency on
the go and toolchain versions. Check for those paths in go mod init to
create modules, go mod edit, and in the module loader and return an
error when attempting to use those paths for a work module. Trying to
init or load a work module with a go.mod that specifies the module path
"go" panics since Go 1.21 (when the toolchain switching logic and the
implicit dependencies on the "go" module was introduced), and this
change returns a proper error instead of panicking.

Fixes #74784

Change-Id: I10e712f8fddbea63edaeb37e14c6d783722e623f
Reviewed-on: https://go-review.googlesource.com/c/go/+/691515
Reviewed-by: Ian Alexander <jitsu@google.com>
LUCI-TryBot-Result: Go LUCI <golang-scoped@luci-project-accounts.iam.gserviceaccount.com>
Reviewed-by: Michael Matloob <matloob@google.com>
2025-07-31 11:00:08 -07:00
Michael Anthony Knyszek
a4d99770c0 runtime/metrics: add cleanup and finalizer queue metrics
These metrics are useful for identifying finalizer and cleanup problems,
namely slow finalizers and/or cleanups holding up the queue, which can
lead to a memory leak.

Fixes #72948.

Change-Id: I1bb64a9ca751fcb462c96d986d0346e0c2894c95
Reviewed-on: https://go-review.googlesource.com/c/go/+/690396
Reviewed-by: Michael Pratt <mpratt@google.com>
LUCI-TryBot-Result: Go LUCI <golang-scoped@luci-project-accounts.iam.gserviceaccount.com>
Reviewed-by: Carlos Amedee <carlos@golang.org>
Auto-Submit: Michael Knyszek <mknyszek@google.com>
2025-07-30 14:00:16 -07:00
Michael Anthony Knyszek
70a2ff7648 runtime: add cgo call benchmark
Change-Id: I12d2ae7dd6a33ecb7110b7d090871e7143fd609f
Reviewed-on: https://go-review.googlesource.com/c/go/+/646196
LUCI-TryBot-Result: Go LUCI <golang-scoped@luci-project-accounts.iam.gserviceaccount.com>
Auto-Submit: Michael Knyszek <mknyszek@google.com>
Reviewed-by: Michael Pratt <mpratt@google.com>
2025-07-30 13:37:28 -07:00
Michael Matloob
69338a335a cmd/go/internal/gover: fix ModIsPrerelease for toolchain versions
We forgot to call the IsPrerelease function on FromToolchain(vers)
rather than on vers itself. IsPrerelase expects a version without the
"go" prefix. See the corresponding code in ModIsValid and ModIsPrefix
that call FromToolchain before passing the versions to IsValid and
IsLang respectively.

Fixes #74786

Change-Id: I3cf055e1348e6a9dc0334e414f06fe85eaf78024
Reviewed-on: https://go-review.googlesource.com/c/go/+/691655
LUCI-TryBot-Result: Go LUCI <golang-scoped@luci-project-accounts.iam.gserviceaccount.com>
Auto-Submit: Michael Matloob <matloob@golang.org>
Reviewed-by: Michael Matloob <matloob@google.com>
Reviewed-by: Michael Pratt <mpratt@google.com>
2025-07-30 13:18:24 -07:00
Michael Munday
cedf63616a cmd/compile: add floating point min/max intrinsics on s390x
Add the VECTOR FP (MINIMUM|MAXIMUM) instructions to the assembler and
use them in the compiler to implement min and max.

Note: I've allowed floating point registers to be used with the single
element instructions (those with the W instead of V prefix) to allow
easier integration into the compiler.

Change-Id: I5f80a510bd248cf483cce95f1979bf63fbae7de6
Reviewed-on: https://go-review.googlesource.com/c/go/+/684715
Reviewed-by: Keith Randall <khr@golang.org>
LUCI-TryBot-Result: Go LUCI <golang-scoped@luci-project-accounts.iam.gserviceaccount.com>
Reviewed-by: Mark Freeman <mark@golang.org>
Reviewed-by: Keith Randall <khr@google.com>
2025-07-30 12:29:15 -07:00
Michael Pratt
82a1921c3b all: remove redundant Swiss prefixes
Now that there is only one map implementation we can simplify names.

For #54766.

Change-Id: I6a6a636cc6a8fc5e7712c27782fc0ced7467b939
Reviewed-on: https://go-review.googlesource.com/c/go/+/691596
Reviewed-by: Keith Randall <khr@google.com>
Auto-Submit: Michael Pratt <mpratt@google.com>
Reviewed-by: Keith Randall <khr@golang.org>
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2025-07-30 11:47:17 -07:00
Michael Pratt
2ae059ccaf all: remove GOEXPERIMENT=swissmap
For #54766.

Change-Id: I6a6a636c40b5fe2e8b0d4a5e23933492bc8bb76e
Reviewed-on: https://go-review.googlesource.com/c/go/+/691595
Reviewed-by: Keith Randall <khr@google.com>
Auto-Submit: Michael Pratt <mpratt@google.com>
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Reviewed-by: Keith Randall <khr@golang.org>
2025-07-30 11:47:14 -07:00
Youlin Feng
cc571dab91 cmd/compile: deduplicate instructions when rewrite func results
After CL 628075, do not rely on the memory arg of an OpLocalAddr.

Fixes #74788

Change-Id: I4e893241e3949bb8f2d93c8b88cc102e155b725d
Reviewed-on: https://go-review.googlesource.com/c/go/+/691275
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Reviewed-by: Mark Freeman <mark@golang.org>
2025-07-30 09:38:10 -07:00
qmuntal
2174a7936c crypto/tls: use standard chacha20-poly1305 cipher suite names
The different chacha20-poly1305 cipher suites were renamed to
include the _SHA256 suffix, which is the canonical naming convention.

The occurrences of the old names were still not updated, which can lead
to confusion when searching for the canonical names in the codebase.

Change-Id: I4f90e9cbedc3552c3481c8b0c616b6f915ddd345
Reviewed-on: https://go-review.googlesource.com/c/go/+/689135
Reviewed-by: Roland Shoemaker <roland@golang.org>
Reviewed-by: Michael Knyszek <mknyszek@google.com>
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2025-07-30 08:48:20 -07:00
Keith Randall
8330fb48a6 cmd/compile: move mips32 over to new bounds check strategy
Change-Id: Ied54ea7bf68c4c943c621ca059aca1048903c041
Reviewed-on: https://go-review.googlesource.com/c/go/+/682497
Reviewed-by: Keith Randall <khr@google.com>
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Reviewed-by: Julian Zhu <jz531210@gmail.com>
Reviewed-by: Mark Freeman <mark@golang.org>
2025-07-30 08:33:08 -07:00
Keith Randall
9f9d7b50e8 cmd/compile: move mips64 over to new bounds check strategy
Change-Id: I936f6fdcc24d628f38482d32803ad2ae994ec1ad
Reviewed-on: https://go-review.googlesource.com/c/go/+/682400
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Reviewed-by: Keith Randall <khr@google.com>
2025-07-30 08:33:02 -07:00
Keith Randall
5216fd570e cmd/compile: move loong64 over to new bounds check strategy
Change-Id: I5dec33d10d16a5d5c0dc7231cd1f764a6d1d7598
Reviewed-on: https://go-review.googlesource.com/c/go/+/682399
LUCI-TryBot-Result: Go LUCI <golang-scoped@luci-project-accounts.iam.gserviceaccount.com>
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2025-07-30 08:32:54 -07:00
khr@golang.org
89a0af86b8 cmd/compile: allow ops to specify clobbering input registers
Same as clobbering fixed registers, but which register is clobbered
depends on which register was assigned to the input.

Add code similar to resultInArg0 processing that makes a register
copy before allowing the op to clobber the last available copy of a value.

(Will be used by subsequent CLs in this stack.)

Change-Id: I6bad88b2cb9ac3303d960ff0fb1611727292cfc4
Reviewed-on: https://go-review.googlesource.com/c/go/+/680335
Auto-Submit: Keith Randall <khr@golang.org>
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Reviewed-by: Mark Freeman <mark@golang.org>
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2025-07-30 07:37:25 -07:00
Keith Randall
5e94d72158 cmd/compile: simplify zerorange on arm64
Get rid of large zeroing cases. We only use this code
for small things now.

Change-Id: Iba0a98785c5b4b72cf031763edb69ff741ca41af
Reviewed-on: https://go-review.googlesource.com/c/go/+/678936
Reviewed-by: Keith Randall <khr@google.com>
Auto-Submit: Keith Randall <khr@golang.org>
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Reviewed-by: Mark Freeman <mark@golang.org>
2025-07-30 07:37:20 -07:00
Jorropo
8cd85e602a cmd/compile: check domination of loop return in both controls
Fixes #74473

Change-Id: I72ff6b95955ae9407271508aa80f230dcf1b6c74
Reviewed-on: https://go-review.googlesource.com/c/go/+/685816
Reviewed-by: Mark Freeman <mark@golang.org>
Auto-Submit: Jorropo <jorropo.pgm@gmail.com>
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Reviewed-by: Keith Randall <khr@golang.org>
2025-07-30 07:31:18 -07:00
Keith Randall
cefaed0de0 reflect: fix noswiss builder
Missed this change in CL 681936

Fixes #74808

Change-Id: I30f6402177c5f8efe9bd11d50fad1770a22762c5
Reviewed-on: https://go-review.googlesource.com/c/go/+/691675
Reviewed-by: Cuong Manh Le <cuong.manhle.vn@gmail.com>
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Auto-Submit: Keith Randall <khr@google.com>
2025-07-30 07:28:41 -07:00
itchyny
3aa1b00081 regexp: fix compiling alternate patterns of different fold case literals
Fixing Equal method in regexp/syntax package fixes compilation of
some alternate patterns like "0A|0[aA]".

Fixes #59007

Change-Id: Idd519c6841167f932899b0ada347fb90a38a765e
GitHub-Last-Rev: 6f43cbca63
GitHub-Pull-Request: golang/go#66165
Reviewed-on: https://go-review.googlesource.com/c/go/+/569735
Reviewed-by: Keith Randall <khr@golang.org>
Reviewed-by: Keith Randall <khr@google.com>
Reviewed-by: Mark Freeman <mark@golang.org>
Auto-Submit: Keith Randall <khr@golang.org>
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2025-07-30 07:25:52 -07:00
Xiaolin Zhao
b1e933d955 cmd/compile: avoid extending when already sufficiently masked on loong64
Reduce the number of go toolchain instructions on loong64 as follows.

        file         before      after      Δ       %
        asm          562400      561348   -1052   -0.1871%
        cgo          488268      487932   -336    -0.0688%
        compile      2505750     2503710  -2040   -0.0814%
        cover        525874      525506   -368    -0.0700%
        link         714162      713562   -600    -0.0840%
        preprofile   240250      240054   -196    -0.0816%
        vet          794074      793742   -332    -0.0418%
        go           1598284     1597680  -604    -0.0378%
        gofmt        324126      323926   -200    -0.0617%
        total        7753188     7747460  -5728   -0.0739%

Change-Id: I3406113553b0fc4947d763ab66e57e69aa98c020
Reviewed-on: https://go-review.googlesource.com/c/go/+/683615
Reviewed-by: Keith Randall <khr@golang.org>
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2025-07-30 00:29:40 -07:00
Cuong Manh Le
880ca333d7 cmd/compile: removing log2uint32 function
Just using isUnsignedPowerOfTwo and log32u is enough.

Change-Id: I93d49ab71c6245d05f6507adbcb9ef2a696e75d6
Reviewed-on: https://go-review.googlesource.com/c/go/+/691476
Reviewed-by: Keith Randall <khr@google.com>
Reviewed-by: Keith Randall <khr@golang.org>
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Auto-Submit: Cuong Manh Le <cuong.manhle.vn@gmail.com>
Reviewed-by: David Chase <drchase@google.com>
2025-07-29 16:22:48 -07:00
Cuong Manh Le
1513661dc3 cmd/compile: simplify logX implementations
By calling logXu instead of duplicating the same ones.

Change-Id: Ide7a3ce072a6abafe1979f0158000457d90645c3
Reviewed-on: https://go-review.googlesource.com/c/go/+/691475
Auto-Submit: Cuong Manh Le <cuong.manhle.vn@gmail.com>
Reviewed-by: Keith Randall <khr@google.com>
Reviewed-by: David Chase <drchase@google.com>
Reviewed-by: Keith Randall <khr@golang.org>
LUCI-TryBot-Result: Go LUCI <golang-scoped@luci-project-accounts.iam.gserviceaccount.com>
2025-07-29 16:22:45 -07:00
Cuong Manh Le
bd94ae8903 cmd/compile: use unsigned power-of-two detector for unsigned mod
Same as CL 689815, but for modulus instead of division.

Updates #74485

Change-Id: I73000231c886a987a1093669ff207fd9117a8160
Reviewed-on: https://go-review.googlesource.com/c/go/+/689895
LUCI-TryBot-Result: Go LUCI <golang-scoped@luci-project-accounts.iam.gserviceaccount.com>
Reviewed-by: David Chase <drchase@google.com>
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Reviewed-by: Keith Randall <khr@google.com>
Reviewed-by: Keith Randall <khr@golang.org>
2025-07-29 16:22:40 -07:00
Cuong Manh Le
f3582fc80e cmd/compile: add unsigned power-of-two detector
Fixes #74485

Change-Id: Ia22a58ac43bdc36c8414d555672a3a3eafc749ca
Reviewed-on: https://go-review.googlesource.com/c/go/+/689815
Reviewed-by: Keith Randall <khr@golang.org>
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Auto-Submit: Cuong Manh Le <cuong.manhle.vn@gmail.com>
2025-07-29 16:22:37 -07:00
Keith Randall
f7d167fe71 internal/abi: move direct/indirect flag from Kind to TFlag
This info makes more sense in the flags instead of as a high
bit of the kind. This makes kind access simpler because we now
don't need to mask anything.

Cleaned up most direct field accesses to use methods instead.
(reflect making new types is the only remaining direct accessor.)

IfaceIndir -> !IsDirectIface everywhere.

gocore has been updated to handle the new location. So has delve.
TODO: any other tools need updating?

Change-Id: I123f97a4d4bdd0bff1641ee7e276d1cc0bd7e8eb
Reviewed-on: https://go-review.googlesource.com/c/go/+/681936
Reviewed-by: Keith Randall <khr@google.com>
Reviewed-by: David Chase <drchase@google.com>
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2025-07-29 14:03:07 -07:00
Olivier Mengué
e0b07dc22e os/exec: fix incorrect expansion of "", "." and ".." in LookPath
Fix incorrect expansion of "" and "." when $PATH contains an executable
file or, on Windows, a parent directory of a %PATH% element contains an
file with the same name as the %PATH% element but with one of the
%PATHEXT% extension (ex: C:\utils\bin is in PATH, and C:\utils\bin.exe
exists).

Fix incorrect expansion of ".." when $PATH contains an element which is
an the concatenation of the path to an executable file (or on Windows
a path that can be expanded to an executable by appending a %PATHEXT%
extension), a path separator and a name.

"", "." and ".." are now rejected early with ErrNotFound.

Fixes CVE-2025-47906
Fixes #74466

Change-Id: Ie50cc0a660fce8fbdc952a7f2e05c36062dcb50e
Reviewed-on: https://go-review.googlesource.com/c/go/+/685755
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Auto-Submit: Damien Neil <dneil@google.com>
Reviewed-by: Roland Shoemaker <roland@golang.org>
Reviewed-by: Damien Neil <dneil@google.com>
2025-07-29 13:53:57 -07:00
Cherry Mui
25816d401c internal/goexperiment: delete RangeFunc goexperiment
It is now always enabeld. The GOEXPERIMENT doesn't control
anything. Remove.

Change-Id: I50eb09f4537f90ec28152eb59a5a689127843fce
Reviewed-on: https://go-review.googlesource.com/c/go/+/684838
Reviewed-by: Michael Knyszek <mknyszek@google.com>
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2025-07-29 12:44:58 -07:00
Cherry Mui
7961bf71f8 internal/goexperiment: delete CacheProg goexperiment
It is now always enabeld. The GOEXPERIMENT doesn't control
anything. Remove.

Change-Id: I24ecf0cd7be5d5dd20f4c558871a3ea97792055e
Reviewed-on: https://go-review.googlesource.com/c/go/+/684837
Reviewed-by: qiu laidongfeng <2645477756@qq.com>
Reviewed-by: Michael Knyszek <mknyszek@google.com>
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2025-07-29 12:44:51 -07:00
Michael Anthony Knyszek
e15a14c4dd sync: remove synchashtriemap GOEXPERIMENT
It's been true by default for a full release. It's time to remove the
old map.

Change-Id: I65507f07725e0084aabd389f37d73ade0b7dc35b
Reviewed-on: https://go-review.googlesource.com/c/go/+/690395
Auto-Submit: Michael Knyszek <mknyszek@google.com>
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Reviewed-by: Cherry Mui <cherryyz@google.com>
2025-07-29 12:10:02 -07:00
Keith Randall
7dccd6395c cmd/compile: move arm32 over to new bounds check strategy
Change-Id: I529edd805875a4833cabcf4692f0c6d4163b07d2
Reviewed-on: https://go-review.googlesource.com/c/go/+/682398
Reviewed-by: Michael Knyszek <mknyszek@google.com>
Reviewed-by: Cuong Manh Le <cuong.manhle.vn@gmail.com>
Reviewed-by: David Chase <drchase@google.com>
LUCI-TryBot-Result: Go LUCI <golang-scoped@luci-project-accounts.iam.gserviceaccount.com>
2025-07-29 10:46:49 -07:00
wingrez
d79405a344 runtime: only deduct assist credit for arenas during GC
CL 617876 has changed the original behavior. This modification will restore it.

Change-Id: I72cce82ebed362f99da7548035435397c835c99b
GitHub-Last-Rev: 980ef25b43
GitHub-Pull-Request: golang/go#74705
Reviewed-on: https://go-review.googlesource.com/c/go/+/689436
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Reviewed-by: Mark Freeman <mark@golang.org>
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2025-07-29 10:40:47 -07:00
qmuntal
19a086f716 cmd/go/internal/telemetrystats: count goexperiments
Knowing which goexperiments are enabled by the users is
useful information to have in the local telemetry database.

It also opens the door for uploading them in the future if
desired.

Change-Id: I12c8eaa3997dec0ed26703885f1c216676f5590d
Reviewed-on: https://go-review.googlesource.com/c/go/+/688135
Reviewed-by: Michael Matloob <matloob@google.com>
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Reviewed-by: Robert Findley <rfindley@google.com>
Reviewed-by: Michael Matloob <matloob@golang.org>
2025-07-29 10:38:55 -07:00
Olivier Mengué
aa95ab8215 image: fix formatting of godoc link
Change-Id: I8fa8741e0db174f0c32af0a393ee1b037d5b7e51
Reviewed-on: https://go-review.googlesource.com/c/go/+/680455
Auto-Submit: Michael Knyszek <mknyszek@google.com>
Reviewed-by: Mark Freeman <mark@golang.org>
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Reviewed-by: Roland Shoemaker <roland@golang.org>
2025-07-29 08:25:32 -07:00
mohanson
4c854b7a3e crypto/elliptic: change a variable name that have the same name as keywords
Change the variable name from byte to b, and use range over int to
simplify the loop.

Change-Id: I8855053c26ce798311f12505cd5edf21d7caf1f5
GitHub-Last-Rev: 70c80545df
GitHub-Pull-Request: golang/go#74736
Reviewed-on: https://go-review.googlesource.com/c/go/+/690135
Reviewed-by: qiu laidongfeng <2645477756@qq.com>
LUCI-TryBot-Result: Go LUCI <golang-scoped@luci-project-accounts.iam.gserviceaccount.com>
Reviewed-by: Roland Shoemaker <roland@golang.org>
Reviewed-by: Michael Knyszek <mknyszek@google.com>
2025-07-29 04:30:34 -07:00
Keith Randall
b10eb1d042 cmd/compile: simplify zerorange on amd64
Get rid of duffzero and large zeroing cases. We only use this code
for small things now.

Change-Id: Idcf330d0ac6433448efa8e32be7eb7f988e10122
Reviewed-on: https://go-review.googlesource.com/c/go/+/678619
Reviewed-by: Jorropo <jorropo.pgm@gmail.com>
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Reviewed-by: Michael Knyszek <mknyszek@google.com>
Reviewed-by: Keith Randall <khr@google.com>
2025-07-28 17:39:26 -07:00
Olivier Mengué
f8eae7a3c3 os/user: fix tests to pass on non-english Windows
Tests on Windows are dependent on the english names of system accounts
and groups.

But on a french install of Windows the system accounts are:
- AUTORITE NT\Système
- AUTORITE NT\SERVICE LOCAL
- AUTORITE NT\SERVICE RÉSEAU

To allow the tests to pass on non-english Windows we only log
differences in user/group names if GetSystemDefaultLCID() reports
a non-english LCID, instead of failing.

Change-Id: Ib81acc2896c45675fa3faf5dc390b57ec5159689
Reviewed-on: https://go-review.googlesource.com/c/go/+/688715
Reviewed-by: Michael Knyszek <mknyszek@google.com>
LUCI-TryBot-Result: Go LUCI <golang-scoped@luci-project-accounts.iam.gserviceaccount.com>
Reviewed-by: Mark Freeman <mark@golang.org>
Reviewed-by: Quim Muntal <quimmuntal@gmail.com>
2025-07-28 11:52:39 -07:00