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Commit Graph

61013 Commits

Author SHA1 Message Date
Guoqi Chen
36e5c84ffa runtime: add padding to Linux kernel structures sigcontext on loong64
On linux/loong64, the sc_extcontext member in the sigcontext structure is
required to be 16-byte aligned [1], although sc_extcontext is not currently
used anywhere, it still needs to be padded to the specified alignment.

[1] https://github.com/torvalds/linux/blob/master/arch/loongarch/include/uapi/asm/sigcontext.h

Change-Id: I98d30e921730314835c9469a6f28e186c9808e34
Reviewed-on: https://go-review.googlesource.com/c/go/+/591855
Reviewed-by: Qiqi Huang <huangqiqi@loongson.cn>
Reviewed-by: sophie zhao <zhaoxiaolin@loongson.cn>
LUCI-TryBot-Result: Go LUCI <golang-scoped@luci-project-accounts.iam.gserviceaccount.com>
Reviewed-by: Ian Lance Taylor <iant@google.com>
Reviewed-by: David Chase <drchase@google.com>
2024-08-07 01:13:35 +00:00
Robert Griesemer
5bd442aba3 go/types, types2: avoid spurious "undefined" errors" for invalid identifiers
The syntax parser complains about invalid identifiers.
Don't report a typechecker error when such an identifier
cannot be found in the current scope.

For now add a local test for types2 only because the
go/parser behaves differently than the syntax parser
which leads to slightly different error positions.

Fixes #68183.

Change-Id: Idbfe62fafcd704886069182744ec5e6b37ffc4e1
Reviewed-on: https://go-review.googlesource.com/c/go/+/602476
Auto-Submit: Robert Griesemer <gri@google.com>
LUCI-TryBot-Result: Go LUCI <golang-scoped@luci-project-accounts.iam.gserviceaccount.com>
Reviewed-by: Tim King <taking@google.com>
Reviewed-by: Robert Griesemer <gri@google.com>
2024-08-06 22:12:59 +00:00
Michael Matloob
44ed517c42 cmd/go/internal/load: make check for path in import error more robust
When producing an ImportPathError from ImportErrorf, we check to see
whether the error string contains the path for the error. The issue is
that we were checking for the exact path string when sometimes the
string is quoted when the error is constructed, and the escaping in the
quote may not match the path string. Check for both the path string, and
the quoted path string.

Fixes #68737

Change-Id: I01bf4e495056e929570bc11bc1f2000ce6d2802b
Reviewed-on: https://go-review.googlesource.com/c/go/+/603475
LUCI-TryBot-Result: Go LUCI <golang-scoped@luci-project-accounts.iam.gserviceaccount.com>
Reviewed-by: Sam Thanawalla <samthanawalla@google.com>
2024-08-06 20:20:34 +00:00
Tim King
b62342216d os: remove non-constant format string in t.Errorf call
Fixes #68744

Change-Id: I12db785fc21c18db69d57cf91e2190b4a3df2484
Reviewed-on: https://go-review.googlesource.com/c/go/+/603515
Reviewed-by: Robert Griesemer <gri@google.com>
LUCI-TryBot-Result: Go LUCI <golang-scoped@luci-project-accounts.iam.gserviceaccount.com>
2024-08-06 17:30:36 +00:00
limeidan
abc3d2c119 cmd/internal/objabi, cmd/link/internal: add new relocations used in internal linking
Change-Id: I1b7c258f0ea3b847a92ccd6644b653e11e7a5ef0
Reviewed-on: https://go-review.googlesource.com/c/go/+/555115
LUCI-TryBot-Result: Go LUCI <golang-scoped@luci-project-accounts.iam.gserviceaccount.com>
Reviewed-by: abner chenc <chenguoqi@loongson.cn>
Reviewed-by: Qiqi Huang <huangqiqi@loongson.cn>
Reviewed-by: sophie zhao <zhaoxiaolin@loongson.cn>
Reviewed-by: Michael Knyszek <mknyszek@google.com>
Reviewed-by: David Chase <drchase@google.com>
2024-08-06 16:06:01 +00:00
Cherry Mui
03e5d83ca7 cmd/internal/obj: minor refactor of wasmimport code
This CL does some minor refactoring of the code handling
wasmimport.
- Put the WasmImport aux reading and writing code together for
  symmetry.
- Define WasmFuncType, embedded in WasmImport. WasmFuncType could
  also be used (later) for wasmexport.
- Move code generation code to a separate function. The containing
  function is already pretty large.
- Simplify linker code a little bit. The loader convention is to
  return the 0 Sym for nonexistent symbol, instead of a separate
  boolean.

No change in generated code. Passes toolstash -cmp
(GOARCH=wasm GOOS=wasip1 go build -toolexec "toolstash -cmp" -a std cmd).

Change-Id: Idc2514f84a08621333841ae4034b81130e0ce411
Reviewed-on: https://go-review.googlesource.com/c/go/+/603135
Reviewed-by: Than McIntosh <thanm@golang.org>
LUCI-TryBot-Result: Go LUCI <golang-scoped@luci-project-accounts.iam.gserviceaccount.com>
Reviewed-by: David Chase <drchase@google.com>
2024-08-06 15:56:16 +00:00
aimuz
a7c7ec5995 maps: add examples for All, Keys, Values, Insert, and Collect functions
Change-Id: I4ee61bea9997b822aa1ec2cc3d01b4db5f101e4c
GitHub-Last-Rev: d88282a92e
GitHub-Pull-Request: golang/go#68696
Reviewed-on: https://go-review.googlesource.com/c/go/+/602315
Auto-Submit: Ian Lance Taylor <iant@google.com>
Reviewed-by: David Chase <drchase@google.com>
LUCI-TryBot-Result: Go LUCI <golang-scoped@luci-project-accounts.iam.gserviceaccount.com>
Reviewed-by: Ian Lance Taylor <iant@google.com>
2024-08-06 15:52:49 +00:00
Mateusz Poliwczak
0ea534b899 crypto/internal/boring: use internal/byteorder
Change-Id: I882dd4160fb24b1d605af28bca01227716dac717
GitHub-Last-Rev: c631b19068
GitHub-Pull-Request: golang/go#68697
Reviewed-on: https://go-review.googlesource.com/c/go/+/602179
Reviewed-by: Filippo Valsorda <filippo@golang.org>
Reviewed-by: Zxilly Chou <zxilly@outlook.com>
Auto-Submit: Roland Shoemaker <roland@golang.org>
Reviewed-by: David Chase <drchase@google.com>
Reviewed-by: Roland Shoemaker <roland@golang.org>
LUCI-TryBot-Result: Go LUCI <golang-scoped@luci-project-accounts.iam.gserviceaccount.com>
2024-08-06 15:51:58 +00:00
Vasily Leonenko
b915399e7e internal/bytealg: optimize Equal for arm64 target
Remove redundant intermediate jump in runtime.memequal
Remove redundant a.ptr==b.ptr check in runtime.memequal_varlen
Add 16-bytes alignment before some labels in runtime.memequal

goos: linux
goarch: arm64
pkg: bytes
                                │ ./master.log │              ./opt.log              │
                                │    sec/op    │    sec/op     vs base               │
Equal/0-4                         0.8342n ± 0%   0.5254n ± 3%  -37.01% (p=0.000 n=8)
Equal/same/1-4                     2.720n ± 0%    2.720n ± 2%        ~ (p=0.779 n=8)
Equal/same/6-4                     2.720n ± 5%    2.720n ± 2%        ~ (p=0.908 n=8)
Equal/same/9-4                     2.722n ± 2%    2.721n ± 2%        ~ (p=0.779 n=8)
Equal/same/15-4                    2.719n ± 0%    2.719n ± 0%        ~ (p=0.641 n=8)
Equal/same/16-4                    2.721n ± 2%    2.719n ± 0%   -0.07% (p=0.014 n=8)
Equal/same/20-4                    2.720n ± 0%    2.721n ± 2%        ~ (p=0.236 n=8)
Equal/same/32-4                    2.720n ± 1%    2.720n ± 0%        ~ (p=0.396 n=8)
Equal/same/4K-4                    2.719n ± 0%    2.720n ± 0%        ~ (p=0.663 n=8)
Equal/same/4M-4                    2.721n ± 0%    2.720n ± 0%        ~ (p=0.075 n=8)
Equal/same/64M-4                   2.720n ± 0%    2.720n ± 2%        ~ (p=0.806 n=8)
Equal/1-4                          6.671n ± 0%    5.449n ± 0%  -18.33% (p=0.000 n=8)
Equal/6-4                          8.761n ± 2%    7.508n ± 0%  -14.30% (p=0.000 n=8)
Equal/9-4                          8.343n ± 0%    7.091n ± 0%  -15.01% (p=0.000 n=8)
Equal/15-4                         8.339n ± 2%    7.090n ± 0%  -14.98% (p=0.000 n=8)
Equal/16-4                         9.173n ± 0%    7.925n ± 2%  -13.61% (p=0.000 n=8)
Equal/20-4                         11.26n ± 0%    10.01n ± 0%  -11.10% (p=0.000 n=8)
Equal/32-4                        10.425n ± 0%    9.176n ± 0%  -11.98% (p=0.000 n=8)
Equal/4K-4                         192.9n ± 0%    192.7n ± 0%   -0.10% (p=0.044 n=8)
Equal/4M-4                         191.3µ ± 0%    191.3µ ± 0%        ~ (p=0.798 n=8)
Equal/64M-4                        3.066m ± 2%    3.065m ± 0%        ~ (p=0.083 n=8)
EqualBothUnaligned/64_0-4          7.506n ± 2%    7.090n ± 2%   -5.55% (p=0.000 n=8)
EqualBothUnaligned/64_1-4          7.850n ± 1%    7.423n ± 0%   -5.43% (p=0.000 n=8)
EqualBothUnaligned/64_4-4          7.505n ± 0%    7.088n ± 0%   -5.56% (p=0.000 n=8)
EqualBothUnaligned/64_7-4          7.840n ± 0%    7.413n ± 0%   -5.44% (p=0.000 n=8)
EqualBothUnaligned/4096_0-4        193.0n ± 4%    190.9n ± 0%   -1.09% (p=0.004 n=8)
EqualBothUnaligned/4096_1-4        223.9n ± 0%    223.1n ± 0%   -0.36% (p=0.000 n=8)
EqualBothUnaligned/4096_4-4        191.9n ± 2%    191.5n ± 0%   -0.21% (p=0.004 n=8)
EqualBothUnaligned/4096_7-4        223.8n ± 0%    223.1n ± 1%        ~ (p=0.098 n=8)
EqualBothUnaligned/4194304_0-4     191.8µ ± 0%    191.8µ ± 0%        ~ (p=0.504 n=8)
EqualBothUnaligned/4194304_1-4     225.4µ ± 2%    225.5µ ± 0%        ~ (p=0.065 n=8)
EqualBothUnaligned/4194304_4-4     192.6µ ± 0%    192.7µ ± 2%   +0.06% (p=0.041 n=8)
EqualBothUnaligned/4194304_7-4     225.4µ ± 0%    225.5µ ± 0%   +0.05% (p=0.050 n=8)
EqualBothUnaligned/67108864_0-4    3.069m ± 0%    3.069m ± 0%        ~ (p=0.314 n=8)
EqualBothUnaligned/67108864_1-4    3.589m ± 0%    3.588m ± 0%        ~ (p=0.959 n=8)
EqualBothUnaligned/67108864_4-4    3.083m ± 0%    3.083m ± 2%        ~ (p=0.505 n=8)
EqualBothUnaligned/67108864_7-4    3.588m ± 0%    3.588m ± 0%        ~ (p=1.000 n=8)
geomean                            199.9n         190.5n        -4.70%

Change-Id: Ib8d0d4006dd39162a600ac98a5f44a0f05136ed3
Reviewed-on: https://go-review.googlesource.com/c/go/+/601135
Reviewed-by: Keith Randall <khr@google.com>
Reviewed-by: Cherry Mui <cherryyz@google.com>
Auto-Submit: Keith Randall <khr@google.com>
LUCI-TryBot-Result: Go LUCI <golang-scoped@luci-project-accounts.iam.gserviceaccount.com>
Reviewed-by: Keith Randall <khr@golang.org>
Auto-Submit: Keith Randall <khr@golang.org>
2024-08-06 15:36:27 +00:00
Ian Lance Taylor
1f0c044d60 test: add test that caused gofrontend to crash
Apparently people don't tend to pass untyped constant expressions
to panic.

For #68734

Change-Id: I6fff8137a0f001391de9e61860b67026a9db08c2
Reviewed-on: https://go-review.googlesource.com/c/go/+/603096
Reviewed-by: David Chase <drchase@google.com>
Auto-Submit: Ian Lance Taylor <iant@google.com>
LUCI-TryBot-Result: Go LUCI <golang-scoped@luci-project-accounts.iam.gserviceaccount.com>
Reviewed-by: Ian Lance Taylor <iant@google.com>
Commit-Queue: Ian Lance Taylor <iant@google.com>
2024-08-05 19:40:55 +00:00
aimuz
677e080dfe bytes, strings: replace reflect.DeepEqual and custom eq with slices.Equal in tests
Change-Id: I016672af79d49a00ddc2d0449cdaac61e98b4ba0
GitHub-Last-Rev: 38d15d9a03
GitHub-Pull-Request: golang/go#68730
Reviewed-on: https://go-review.googlesource.com/c/go/+/602698
LUCI-TryBot-Result: Go LUCI <golang-scoped@luci-project-accounts.iam.gserviceaccount.com>
Auto-Submit: Ian Lance Taylor <iant@google.com>
Reviewed-by: Robert Griesemer <gri@google.com>
Auto-Submit: Robert Griesemer <gri@google.com>
Commit-Queue: Ian Lance Taylor <iant@google.com>
Reviewed-by: Ian Lance Taylor <iant@google.com>
2024-08-05 18:44:21 +00:00
khr@golang.org
d465aee0b8 cmd/internal/testdir: fix failure when GOAMD64=v3 is specified in goenv file
Fixes #68548

Add GOENV=off, GOFLAGS= to the build of the stdlib, so that it matches
what runcmd does. This ensures that the runtime and the test are built
with the same flags. As opposed to before this CL, where flags were used
in the stdlib build but not the runcmd build.

(Part of the problem here is that cmd/internal/testdir/testdir_test.go
plays fast and loose with the build cache to make the tests run faster.
Maybe some of that fast-and-loose mechanism can be removed now that we
have a better build cache? I'm not sure.)

Change-Id: I449d4ff517c69311d0aa4411e7fb96c0cca49269
Reviewed-on: https://go-review.googlesource.com/c/go/+/600276
Reviewed-by: Dmitri Shuralyov <dmitshur@google.com>
Reviewed-by: Michael Matloob <matloob@golang.org>
Reviewed-by: Ian Lance Taylor <iant@golang.org>
LUCI-TryBot-Result: Go LUCI <golang-scoped@luci-project-accounts.iam.gserviceaccount.com>
2024-08-05 13:12:12 +00:00
Guoqi Chen
f428c7b729 cmd/internal/obj/loong64: add FLDX,FSTX,LDX.STX instructions support
The LDX.{B,BU,H,HU,W,WU,D},STX.{B,H,W,D}, FLDX.{S,D}, FSTX.{S,D} instruction
on Loong64 implements memory access operations using register offset

Go asm syntax:
	MOV{B,BU,H,HU,W,WU,V}	(RJ)(RK), RD
	MOV{B,H,W,V}		RD, (RJ)(RK)
	MOV{F,D}		(RJ)(RK), FD
	MOV{F,D}		FD, (RJ)(RK)

Equivalent platform assembler syntax:
        ldx.{b,bu,h,hu,w,wu,d}	rd, rj, rk
        stx.{b,h,w,d}		rd, rj, rk
        fldx.{s,d}		fd, rj, rk
        fstx.{s,d}		fd, rj, rk

Ref: https://loongson.github.io/LoongArch-Documentation/LoongArch-Vol1-EN.html

Change-Id: Ic7d13bf45dab8342f034b6469465e6337a087144
Reviewed-on: https://go-review.googlesource.com/c/go/+/588215
Reviewed-by: sophie zhao <zhaoxiaolin@loongson.cn>
Reviewed-by: Michael Knyszek <mknyszek@google.com>
Reviewed-by: Cherry Mui <cherryyz@google.com>
LUCI-TryBot-Result: Go LUCI <golang-scoped@luci-project-accounts.iam.gserviceaccount.com>
Reviewed-by: Qiqi Huang <huangqiqi@loongson.cn>
Reviewed-by: Meidan Li <limeidan@loongson.cn>
Auto-Submit: abner chenc <chenguoqi@loongson.cn>
2024-08-03 05:06:40 +00:00
Xiaolin Zhao
3ae819ad1c cmd/internal/obj/loong64: add support for instructions FTINT{RM/RP/RZ/RNE}.{W/L}.{S/D}
These instructions convert floating-point numbers to fixed-point numbers
with the specified rounding pattern.

Go asm syntax:
            FTINT{RM/RP/RZ/RNE}{W/V}{F/D}	FJ, FD

Equivalent platform assembler syntax:
            ftint{rm/rp/rz/rne}.{w/l}.{s/d}	fd, fj

Ref: https://loongson.github.io/LoongArch-Documentation/LoongArch-Vol1-EN.html

Change-Id: I6d650d1b48b10296d01a98fadf9d806206f9b96e
Reviewed-on: https://go-review.googlesource.com/c/go/+/590995
Auto-Submit: abner chenc <chenguoqi@loongson.cn>
LUCI-TryBot-Result: Go LUCI <golang-scoped@luci-project-accounts.iam.gserviceaccount.com>
Reviewed-by: Michael Knyszek <mknyszek@google.com>
Reviewed-by: Meidan Li <limeidan@loongson.cn>
Reviewed-by: abner chenc <chenguoqi@loongson.cn>
Reviewed-by: Dmitri Shuralyov <dmitshur@google.com>
Reviewed-by: Qiqi Huang <huangqiqi@loongson.cn>
2024-08-03 03:27:43 +00:00
Xiaolin Zhao
4087624473 cmd/internal/obj/loong64: add support for instructions FFINT.{S/D}.{W/L} and FTINT.{W/L}.{S/D}
Go asm syntax:
	FFINT{F/D}{W/V}		FJ, FD
	FTINT{W/V}{F/D}		FJ, FD

Equivalent platform assembler syntax:
	ffint.{s/d}.{w/l}	fd, fj
	ftint.{w/l}.{s/d}	fd, fj

Ref: https://loongson.github.io/LoongArch-Documentation/LoongArch-Vol1-EN.html

Change-Id: Ie7646c5d49645c63b274b34b66539f10370f4930
Reviewed-on: https://go-review.googlesource.com/c/go/+/590996
Reviewed-by: Meidan Li <limeidan@loongson.cn>
Reviewed-by: abner chenc <chenguoqi@loongson.cn>
Auto-Submit: abner chenc <chenguoqi@loongson.cn>
Reviewed-by: Qiqi Huang <huangqiqi@loongson.cn>
Reviewed-by: Dmitri Shuralyov <dmitshur@google.com>
Reviewed-by: Cherry Mui <cherryyz@google.com>
Reviewed-by: Michael Knyszek <mknyszek@google.com>
LUCI-TryBot-Result: Go LUCI <golang-scoped@luci-project-accounts.iam.gserviceaccount.com>
2024-08-03 02:48:45 +00:00
Xiaolin Zhao
b874005a84 cmd/internal/obj/loong64: add support for instructions FCOPYSIGN.{S/D} and FCLASS.{S/D}
Go asm syntax:
	FCOPYSG{F/D}	FK, FJ, FD
	FCLASSF{F/D}	FJ, FD

Equivalent platform assembler syntax:
	fcopysign.{s/d}	fd, fj, fk
	fclass.{s/d}	fd, fj

Ref: https://loongson.github.io/LoongArch-Documentation/LoongArch-Vol1-EN.html

Change-Id: Ied34b71c9d0b34456ac5782a59d29d2d0229e326
Reviewed-on: https://go-review.googlesource.com/c/go/+/590675
Reviewed-by: Cherry Mui <cherryyz@google.com>
Auto-Submit: abner chenc <chenguoqi@loongson.cn>
Reviewed-by: Michael Knyszek <mknyszek@google.com>
Reviewed-by: abner chenc <chenguoqi@loongson.cn>
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2024-08-03 01:57:52 +00:00
Ian Lance Taylor
2ffcfcef55 time: restore support for large negative days in Date
CL 586257 converted days to uint32 which is usually fine but fails for
negative days close to cycle boundaries.

Fixes #68718

Change-Id: I8dc5b8fe0c7c1921beb204da1913b9a1ab39280d
Reviewed-on: https://go-review.googlesource.com/c/go/+/602815
Reviewed-by: Rob Pike <r@golang.org>
Auto-Submit: Ian Lance Taylor <iant@google.com>
Reviewed-by: Michael Knyszek <mknyszek@google.com>
Reviewed-by: Ian Lance Taylor <iant@google.com>
LUCI-TryBot-Result: Go LUCI <golang-scoped@luci-project-accounts.iam.gserviceaccount.com>
2024-08-03 01:06:03 +00:00
apocelipes
9cfe3a86d3 archive/zip,cmd/compile: simplify the split function
Use strings to simplify the code.

This is a follow-up for the CL 586715.

Change-Id: I9e5470ec271e8af1ad4ddbb5f01f43a8a4879557
GitHub-Last-Rev: b95d617978
GitHub-Pull-Request: golang/go#68713
Reviewed-on: https://go-review.googlesource.com/c/go/+/602697
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Auto-Submit: Ian Lance Taylor <iant@google.com>
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Reviewed-by: Ian Lance Taylor <iant@google.com>
2024-08-03 01:05:29 +00:00
pgxiaolianzi
c61ff290db mime: add available godoc link
Change-Id: Ic5454758c87e9f84a829aed8a72b5ad977878585
GitHub-Last-Rev: 2eb8ced712
GitHub-Pull-Request: golang/go#68605
Reviewed-on: https://go-review.googlesource.com/c/go/+/601295
Auto-Submit: Ian Lance Taylor <iant@google.com>
Reviewed-by: Michael Knyszek <mknyszek@google.com>
Reviewed-by: Ian Lance Taylor <iant@google.com>
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2024-08-03 01:05:26 +00:00
Rhys Hiltner
e8776e19b9 runtime: benchmark mutex handoffs
The speed of handing off a mutex to a waiting thread is sensitive to the
configuration of the spinning section of lock2. Measure that latency
directly, to complement our existing benchmarks of mutex throughput.

For #68578

Change-Id: I7637684bcff62eb05cc008491f095f653d13af4b
Reviewed-on: https://go-review.googlesource.com/c/go/+/602176
Reviewed-by: Dmitri Shuralyov <dmitshur@google.com>
Reviewed-by: Michael Knyszek <mknyszek@google.com>
Auto-Submit: Rhys Hiltner <rhys.hiltner@gmail.com>
LUCI-TryBot-Result: Go LUCI <golang-scoped@luci-project-accounts.iam.gserviceaccount.com>
2024-08-02 21:00:51 +00:00
Filippo Valsorda
aac7106cb9 crypto/tls: fix testHandshake close flakes
The flakes were introduced by me in CL 586655. It's unclear why only
FreeBSD seems affected, maybe other TCP stacks handle sending on a
half-closed connection differently, or aren't as quick to propagate the
RST over localhost.

Fixes #68155

Change-Id: I32a1b474a7d6531dbab93910c23568b867629e8c
Reviewed-on: https://go-review.googlesource.com/c/go/+/602615
Reviewed-by: Cherry Mui <cherryyz@google.com>
Run-TryBot: Filippo Valsorda <filippo@golang.org>
TryBot-Result: Gopher Robot <gobot@golang.org>
Reviewed-by: Roland Shoemaker <roland@golang.org>
Auto-Submit: Filippo Valsorda <filippo@golang.org>
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2024-08-02 19:22:04 +00:00
Ian Lance Taylor
2ca1ae8e09 os: clarify Rename docs for renaming to a directory
Fixes #68690

Change-Id: Iebc27d5f385d787e568550a863f59f16c7a79fd7
Reviewed-on: https://go-review.googlesource.com/c/go/+/602178
Auto-Submit: Ian Lance Taylor <iant@golang.org>
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Reviewed-by: Rob Pike <r@golang.org>
2024-08-02 19:09:11 +00:00
Michael Pratt
1985c0ccf9 cmd/compile,runtime: disable swissmap fast variants
Temporary measure to reduce the required MVP code.

For #54766.

Cq-Include-Trybots: luci.golang.try:gotip-linux-amd64-longtest-swissmap
Change-Id: I44dc8acd0dc8280c6beb40451998e84bc85c238a
Reviewed-on: https://go-review.googlesource.com/c/go/+/580915
Reviewed-by: Keith Randall <khr@golang.org>
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2024-08-02 16:47:38 +00:00
Michael Pratt
4f7dc282c4 all: split old and swiss map abi and compiler integration
The two map implementations are still identical, but now the compiler
targets the appropriate ABI depending on GOEXPERIMENT.

For #54766.

Cq-Include-Trybots: luci.golang.try:gotip-linux-amd64-longtest,gotip-linux-amd64-longtest-swissmap
Change-Id: I8438f64f044ba9de30ddbf2b8ceb9b4edd2d5614
Reviewed-on: https://go-review.googlesource.com/c/go/+/580779
Reviewed-by: Michael Knyszek <mknyszek@google.com>
Reviewed-by: Keith Randall <khr@golang.org>
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Auto-Submit: Michael Pratt <mpratt@google.com>
2024-08-02 16:41:53 +00:00
Michael Pratt
057b703407 all: create swissmap experiment and fork files
The _swiss.go files are identical to the originals (except build tag).
Later CLs will change them.

For #54766.

Cq-Include-Trybots: luci.golang.try:gotip-linux-amd64-longtest-swissmap
Change-Id: I9943e2d6f1cfa227ffbf27c9ddc9ce853695d225
Reviewed-on: https://go-review.googlesource.com/c/go/+/580778
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2024-08-02 15:34:37 +00:00
Manuel Sabin
c5f2e4e56e crypto/internal/cryptotest: add tests for the cipher.Stream interface
This CL creates tests for the cipher.Stream interface in the new
cryptotest package.  This set of tests is called from the tests of
implementations of the Stream interface e.g. ctr_test.go, ofb_test.go,
rc4_test.go, etc.

Updates #25309

Change-Id: I57204ef9f4c0ec09b94e88466deb03c6715e411d
Reviewed-on: https://go-review.googlesource.com/c/go/+/595564
LUCI-TryBot-Result: Go LUCI <golang-scoped@luci-project-accounts.iam.gserviceaccount.com>
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Auto-Submit: Filippo Valsorda <filippo@golang.org>
Reviewed-by: Filippo Valsorda <filippo@golang.org>
Reviewed-by: Russell Webb <russell.webb@protonmail.com>
2024-08-02 14:54:04 +00:00
limeidan
a9ad410801 cmd/internal/obj/loong64: adjust the order of class names
Change-Id: I0ff9a4f7b4758f44eaedfd821ad80a86b58e55a4
Reviewed-on: https://go-review.googlesource.com/c/go/+/565625
Reviewed-by: Qiqi Huang <huangqiqi@loongson.cn>
Reviewed-by: Michael Knyszek <mknyszek@google.com>
Reviewed-by: sophie zhao <zhaoxiaolin@loongson.cn>
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Auto-Submit: abner chenc <chenguoqi@loongson.cn>
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Reviewed-by: Dmitri Shuralyov <dmitshur@google.com>
2024-08-02 14:43:44 +00:00
limeidan
3a55b92ccf runtime: add debug call injection support on loong64
Change-Id: Iaf2bd9da0b35c20c5b57db2eb9b2eea2b662140c
Reviewed-on: https://go-review.googlesource.com/c/go/+/587055
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Reviewed-by: Michael Knyszek <mknyszek@google.com>
Auto-Submit: abner chenc <chenguoqi@loongson.cn>
2024-08-02 14:38:24 +00:00
Jes Cok
492e2b64da time: fix some typos in CL 512355
Change-Id: Id0fb180a2d7910cdff7f4ab7154d9ceeb2f1cb71
GitHub-Last-Rev: 03658dd974
GitHub-Pull-Request: golang/go#68709
Reviewed-on: https://go-review.googlesource.com/c/go/+/602675
Reviewed-by: Ian Lance Taylor <iant@google.com>
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2024-08-02 14:34:04 +00:00
Xiaolin Zhao
e761921688 cmd/internal/obj/loong64: add support for instructions F{MAX/NIN}.{S/D}
Go asm syntax:
	F{MAX/MIN}{F/D}		FK, FJ, FD

Equivalent platform assembler syntax:
	f{max/min}.{s/d}	fd, fj, fk

Ref: https://loongson.github.io/LoongArch-Documentation/LoongArch-Vol1-EN.html

Change-Id: Ib11fed1fe3700be5ebba33b5818661c4071b7b7c
Reviewed-on: https://go-review.googlesource.com/c/go/+/590676
Reviewed-by: abner chenc <chenguoqi@loongson.cn>
Reviewed-by: Cherry Mui <cherryyz@google.com>
Reviewed-by: Michael Knyszek <mknyszek@google.com>
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2024-08-02 14:33:57 +00:00
Joel Sing
9abd11440c math/big: implement addVV in riscv64 assembly
This provides an assembly implementation of addVV for riscv64,
processing up to four words per loop, resulting in a significant
performance gain.

On a StarFive VisionFive 2:

               │   addvv.1    │               addvv.2               │
               │    sec/op    │   sec/op     vs base                │
AddVV/1-4         73.45n ± 0%   48.08n ± 0%  -34.54% (p=0.000 n=10)
AddVV/2-4         88.14n ± 0%   58.76n ± 0%  -33.33% (p=0.000 n=10)
AddVV/3-4        102.80n ± 0%   69.44n ± 0%  -32.45% (p=0.000 n=10)
AddVV/4-4        117.50n ± 0%   72.18n ± 0%  -38.57% (p=0.000 n=10)
AddVV/5-4        132.20n ± 0%   82.79n ± 0%  -37.38% (p=0.000 n=10)
AddVV/10-4        216.3n ± 0%   126.8n ± 0%  -41.35% (p=0.000 n=10)
AddVV/100-4      1659.0n ± 0%   885.2n ± 0%  -46.64% (p=0.000 n=10)
AddVV/1000-4     16.089µ ± 0%   8.400µ ± 0%  -47.79% (p=0.000 n=10)
AddVV/10000-4     245.3µ ± 0%   176.9µ ± 0%  -27.88% (p=0.000 n=10)
AddVV/100000-4    2.537m ± 0%   1.873m ± 0%  -26.17% (p=0.000 n=10)
geomean           1.435µ        904.5n       -36.99%

               │   addvv.1    │                addvv.2                │
               │     B/s      │      B/s       vs base                │
AddVV/1-4        830.9Mi ± 0%   1269.5Mi ± 0%  +52.78% (p=0.000 n=10)
AddVV/2-4        1.353Gi ± 0%    2.029Gi ± 0%  +50.00% (p=0.000 n=10)
AddVV/3-4        1.739Gi ± 0%    2.575Gi ± 0%  +48.09% (p=0.000 n=10)
AddVV/4-4        2.029Gi ± 0%    3.303Gi ± 0%  +62.82% (p=0.000 n=10)
AddVV/5-4        2.254Gi ± 0%    3.600Gi ± 0%  +59.69% (p=0.000 n=10)
AddVV/10-4       2.755Gi ± 0%    4.699Gi ± 0%  +70.54% (p=0.000 n=10)
AddVV/100-4      3.594Gi ± 0%    6.734Gi ± 0%  +87.37% (p=0.000 n=10)
AddVV/1000-4     3.705Gi ± 0%    7.096Gi ± 0%  +91.54% (p=0.000 n=10)
AddVV/10000-4    2.430Gi ± 0%    3.369Gi ± 0%  +38.65% (p=0.000 n=10)
AddVV/100000-4   2.350Gi ± 0%    3.183Gi ± 0%  +35.44% (p=0.000 n=10)
geomean          2.119Gi         3.364Gi       +58.71%

Change-Id: I727b3d9f8ab01eada7270046480b1430d56d0a96
Reviewed-on: https://go-review.googlesource.com/c/go/+/595395
Reviewed-by: Cherry Mui <cherryyz@google.com>
Reviewed-by: David Chase <drchase@google.com>
Reviewed-by: M Zhuo <mengzhuo1203@gmail.com>
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Reviewed-by: Than McIntosh <thanm@google.com>
2024-08-02 14:14:14 +00:00
Xiaolin Zhao
11dbbaffe1 cmd/internal/obj/loong64: add support for MOV{GR2FCSR/FCSR2GR/FR2CF/CF2FR} instructions
Go asm syntax example:
	MOVV	R4, FCSR0
	MOVV	FCSR1, R5
	MOVV	F4, FCC0
	MOVV	FCC1, F5

Equivalent platform assembler syntax:
	movgr2fcsr	fcsr0, r4
	movfcsr2gr	r5, fcsr1
	movfr2cf	fcc0, f4
	movcf2fr	f5, fcc1

Ref: https://loongson.github.io/LoongArch-Documentation/LoongArch-Vol1-EN.html

This change also merges the case of floating point move instructions
and add checks for the range of special registers.

Change-Id: Ib08fbce83e7a31dc0ab4857bf9ba959855241d1c
Reviewed-on: https://go-review.googlesource.com/c/go/+/580279
LUCI-TryBot-Result: Go LUCI <golang-scoped@luci-project-accounts.iam.gserviceaccount.com>
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Reviewed-by: Cherry Mui <cherryyz@google.com>
2024-08-02 00:29:24 +00:00
Jes Cok
67c3f012cf bytes,slices,strings: optimize Repeat a bit
Like slices.Repeat, use math/bits.Mul to detect overflow in order to
avoid a divide which is slow.

While here, also use builtin min/max to simplify code.

Change-Id: I4a6d8cd5df97fa75f4e324d4be1405ce53c03d31
GitHub-Last-Rev: 54ba5c7126
GitHub-Pull-Request: golang/go#68704
Reviewed-on: https://go-review.googlesource.com/c/go/+/602475
Auto-Submit: Ian Lance Taylor <iant@google.com>
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Reviewed-by: Ian Lance Taylor <iant@google.com>
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2024-08-01 21:32:50 +00:00
Rhys Hiltner
e50913cefc runtime: avoid futile mark worker acquisition
During the GC mark phase, one of the first behaviors of findRunnable is
to check if it should execute a GC mark worker. Mark workers often run
for many milliseconds in a row, so programs that invoke the scheduler
more frequently will see that condition trigger only a tiny fraction of
the time.

Obtaining a mark worker from the gcBgMarkWorkerPool involves a CAS on a
single memory location that's shared across the process. When GOMAXPROCS
is large, the resulting contention can waste a significant amount of CPU
time. But a sufficiently large GOMAXPROCS also means there's no need for
fractional mark workers, making it easier to check ahead of time if we
need to run a worker.

Check, without committing to a particular worker, whether we would even
want to run one.

For #68399

Change-Id: I5d8578c2101ee20a8a4156a029584356095ea118
Reviewed-on: https://go-review.googlesource.com/c/go/+/602477
Reviewed-by: Michael Pratt <mpratt@google.com>
Auto-Submit: Rhys Hiltner <rhys.hiltner@gmail.com>
Reviewed-by: Michael Knyszek <mknyszek@google.com>
LUCI-TryBot-Result: Go LUCI <golang-scoped@luci-project-accounts.iam.gserviceaccount.com>
2024-08-01 21:11:15 +00:00
Michael Pratt
2caf638e2f runtime: don't use maps in js note implementation
notes are used in sensitive locations in the runtime, such as those with
write barriers forbidden. Maps aren't designed for this sort of internal
use.

Notably, newm -> notewakeup doesn't allow write barriers, but mapaccess1
-> panic contains write barriers. The js runtime only builds right now
because the map access is optimized to mapaccess1_fast64, which happens
to not have a panic call.

The initial swisstable map implementation doesn't have a fast64 variant.
While we could add one, it is a bad idea in general to use a map in such
a fragile location. Simplify the implementation by storing the metadata
directly in the note, and using a linked list for checkTimeouts.

For #54766.

Cq-Include-Trybots: luci.golang.try:gotip-js-wasm
Change-Id: Ib9d39f064ae4ad32dcc873f799428717eb6c2d5a
Reviewed-on: https://go-review.googlesource.com/c/go/+/595558
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2024-08-01 19:13:58 +00:00
Michael Pratt
38f0a829aa debug/buildid: treat too large string as "not a Go executable"
If the length does not fit in int, saferio.ReadDataAt returns
io.ErrUnexpectedEOF. Treat is as an invalid format.

Fixes #68692.
For #68592.

Cq-Include-Trybots: luci.golang.try:gotip-linux-386-longtest
Change-Id: Ie856f29c907fd10e6d9b7dfbb6f0d8008a75a1c6
Reviewed-on: https://go-review.googlesource.com/c/go/+/602435
Auto-Submit: Michael Pratt <mpratt@google.com>
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2024-08-01 15:02:27 +00:00
Mateusz Poliwczak
b26134bf17 crypto: implement encoding.BinaryAppender for all crypto hashes
For #62384

Change-Id: I6fc7a7b8b85e02c880f1d16e0467f5076d477f0f
GitHub-Last-Rev: 90ba7bae6a
GitHub-Pull-Request: golang/go#68651
Reviewed-on: https://go-review.googlesource.com/c/go/+/601776
Auto-Submit: Ian Lance Taylor <iant@google.com>
Reviewed-by: Ian Lance Taylor <iant@google.com>
Reviewed-by: Michael Knyszek <mknyszek@google.com>
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2024-08-01 14:57:46 +00:00
Cuong Manh Le
09eefb3a4d cmd/compile: add race instrumentation during walkCompare
So the racy usage could be detected after re-writing "==" to
runtime.memequal call.

Updates #61204

Change-Id: Idb4ac37e55813cc87f9d16aa656fb447edf69ea1
Reviewed-on: https://go-review.googlesource.com/c/go/+/601117
Reviewed-by: Egon Elbre <egonelbre@gmail.com>
Auto-Submit: Cuong Manh Le <cuong.manhle.vn@gmail.com>
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Reviewed-by: Cherry Mui <cherryyz@google.com>
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2024-08-01 14:57:13 +00:00
Xin Hao
4c05a23bb6 go/types: fix typo in comment
Change-Id: Ic0ea0f0de3f94e2d89bf76176c51f42e87b1bad7
GitHub-Last-Rev: 29517a07f9
GitHub-Pull-Request: golang/go#68695
Reviewed-on: https://go-review.googlesource.com/c/go/+/602177
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2024-08-01 14:56:12 +00:00
Rhys Hiltner
6ac87aa5b3 runtime: measure speed of procyield and osyield
These are delay primitives for lock2. If a mutex isn't immediately
available, we can use procyield to tell the processor to wait for a
moment, or osyield to allow the OS to run a different process or thread
if one is waiting. We expect a processor-level yield to be faster than
an os-level yield, and for both of them to be fast relative to entering
a full sleep (via futexsleep or semasleep).

Each architecture has its own way of hinting to the processor that it's
in a spin-wait loop, so procyield presents an architecture-independent
interface for use in lock_futex.go and lock_sema.go.

Measure the (single-threaded) speed of these to confirm.

For #68578

Change-Id: I90cd46ea553f2990395aceb048206285558c877e
Reviewed-on: https://go-review.googlesource.com/c/go/+/601396
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Reviewed-by: Michael Knyszek <mknyszek@google.com>
2024-08-01 03:06:18 +00:00
limeidan
bd85a3b153 cmd/internal/obj/loong64: remove Class C_LEXT and C_SEXT
There is no need to check whether the symbol is empty, since we have already
checked it before. In addition, it is enough to use C_ADDR to represent memory
access, C_LEXT and C_SEXT are not needed.

Change-Id: I7158d6b549482b35cd9ac5fba781648fb3f21922
Reviewed-on: https://go-review.googlesource.com/c/go/+/565615
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Reviewed-by: sophie zhao <zhaoxiaolin@loongson.cn>
Reviewed-by: abner chenc <chenguoqi@loongson.cn>
Reviewed-by: Qiqi Huang <huangqiqi@loongson.cn>
2024-08-01 02:53:30 +00:00
Guoqi Chen
3214129a83 cmd/compiler,internal/runtime/atomic: optimize Load{64,32,8} on loong64
The LoadAcquire barrier on Loong64 is "dbar 0x14", using the correct
barrier in Load{8,32,64} implementation can improve performance.

goos: linux
goarch: loong64
pkg: internal/runtime/atomic
cpu: Loongson-3A6000-HV @ 2500.00MHz
                |  bench.old   | bench.new                           |
                |  sec/op      |  sec/op        vs base              |
AtomicLoad64      17.210n ± 0%   4.402n ± 0%   -74.42% (p=0.000 n=20)
AtomicLoad64-2    17.210n ± 0%   4.402n ± 0%   -74.42% (p=0.000 n=20)
AtomicLoad64-4    17.210n ± 0%   4.402n ± 0%   -74.42% (p=0.000 n=20)
AtomicLoad        17.220n ± 0%   4.402n ± 0%   -74.44% (p=0.000 n=20)
AtomicLoad-2      17.210n ± 0%   4.402n ± 0%   -74.42% (p=0.000 n=20)
AtomicLoad-4      17.210n ± 0%   4.402n ± 0%   -74.42% (p=0.000 n=20)
AtomicLoad8       17.210n ± 0%   4.402n ± 0%   -74.42% (p=0.000 n=20)
AtomicLoad8-2     17.210n ± 0%   4.402n ± 0%   -74.42% (p=0.000 n=20)
AtomicLoad8-4     17.210n ± 0%   4.402n ± 0%   -74.42% (p=0.000 n=20)
geomean           17.21n         4.402n        -74.42%

goos: linux
goarch: loong64
pkg: internal/runtime/atomic
cpu: Loongson-3A5000 @ 2500.00MHz
                |  bench.old   | bench.new                           |
                |  sec/op      |  sec/op        vs base              |
AtomicLoad64      18.82n ± 0%    10.41n ± 0%   -44.69% (p=0.000 n=20)
AtomicLoad64-2    18.81n ± 0%    10.41n ± 0%   -44.66% (p=0.000 n=20)
AtomicLoad64-4    18.82n ± 0%    10.41n ± 0%   -44.69% (p=0.000 n=20)
AtomicLoad        18.81n ± 0%    10.41n ± 0%   -44.66% (p=0.000 n=20)
AtomicLoad-2      18.82n ± 0%    10.41n ± 0%   -44.69% (p=0.000 n=20)
AtomicLoad-4      18.81n ± 0%    10.42n ± 0%   -44.63% (p=0.000 n=20)
AtomicLoad8       18.82n ± 0%    10.41n ± 0%   -44.69% (p=0.000 n=20)
AtomicLoad8-2     18.82n ± 0%    10.41n ± 0%   -44.70% (p=0.000 n=20)
AtomicLoad8-4     18.82n ± 0%    10.41n ± 0%   -44.69% (p=0.000 n=20)
geomean           18.82n         10.41n        -44.68%

Change-Id: I9d47c9d6f359c4f2e41035ca656429aade2e7847
Reviewed-on: https://go-review.googlesource.com/c/go/+/581357
Reviewed-by: Cherry Mui <cherryyz@google.com>
Reviewed-by: Michael Knyszek <mknyszek@google.com>
LUCI-TryBot-Result: Go LUCI <golang-scoped@luci-project-accounts.iam.gserviceaccount.com>
2024-08-01 02:17:13 +00:00
limeidan
01ab9a016a cmd/internal/obj/loong64: optimize the code logic of jump instructions
If p.To.Sym is nil, that means we can get the target offset from
p.To.Target().pc - c.pc,only when p.To.Sym is not nil, we need relocation
to get the true address of target symbol.

Change-Id: Ied52f675c6aa6e8fb8d972b7699f5cadd1ecb268
Reviewed-on: https://go-review.googlesource.com/c/go/+/565627
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Reviewed-by: Qiqi Huang <huangqiqi@loongson.cn>
Reviewed-by: Dmitri Shuralyov <dmitshur@google.com>
Reviewed-by: abner chenc <chenguoqi@loongson.cn>
Reviewed-by: Meidan Li <limeidan@loongson.cn>
2024-08-01 00:51:41 +00:00
limeidan
864513dda9 cmd/internal/obj/loong64: merge two branch classes into one
When the kind of the operand is TYPE_BRANCH, we cannot determine
whether it is a long branch or a short branch, so we merge these
two classes into one.

Change-Id: I7d7fa8f62ff02791ec3de4e3e3f7610bc9cb1743
Reviewed-on: https://go-review.googlesource.com/c/go/+/565626
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Reviewed-by: Dmitri Shuralyov <dmitshur@google.com>
Reviewed-by: abner chenc <chenguoqi@loongson.cn>
Reviewed-by: Michael Knyszek <mknyszek@google.com>
2024-08-01 00:51:17 +00:00
limeidan
ee3da50617 cmd/internal/obj/loong64: reclassify three-register operation instructions and two-register operation instructions
The instructions belonging to case 32 have the same structure as the
instructions in case 2.

The instructions in case 33 are actually two-register operation
instructions. We move their definitions from function oprrr to oprr and
merge their implementation into case 9.

Change-Id: Id04aaa497e78d8198a58f8d406876d16b3f393a7
Reviewed-on: https://go-review.googlesource.com/c/go/+/565616
Reviewed-by: Qiqi Huang <huangqiqi@loongson.cn>
Reviewed-by: abner chenc <chenguoqi@loongson.cn>
LUCI-TryBot-Result: Go LUCI <golang-scoped@luci-project-accounts.iam.gserviceaccount.com>
Reviewed-by: Dmitri Shuralyov <dmitshur@google.com>
Reviewed-by: sophie zhao <zhaoxiaolin@loongson.cn>
Reviewed-by: Michael Knyszek <mknyszek@google.com>
2024-08-01 00:51:04 +00:00
Robert Griesemer
ecadbe9faa go/types: generate recording.go
Change-Id: I530df137bcb5094a828f97ecbe204265b50c8546
Reviewed-on: https://go-review.googlesource.com/c/go/+/602118
Auto-Submit: Robert Griesemer <gri@google.com>
LUCI-TryBot-Result: Go LUCI <golang-scoped@luci-project-accounts.iam.gserviceaccount.com>
Reviewed-by: Robert Griesemer <gri@google.com>
Reviewed-by: Tim King <taking@google.com>
2024-08-01 00:14:29 +00:00
Manuel Sabin
4b2716348c crypto/internal/cryptotest: add tests for the cipher.BlockMode interface
This CL creates tests for the cipher.BlockMode interface in the new
cryptotest package.  This set of tests is called from the tests of
implementations of the BlockMode interface e.g. cbc_test.go

Updates #25309

Change-Id: I3685bbee24d08d66f5bb4b7f001cbf520c844881
Reviewed-on: https://go-review.googlesource.com/c/go/+/595120
Reviewed-by: Filippo Valsorda <filippo@golang.org>
Auto-Submit: Filippo Valsorda <filippo@golang.org>
Reviewed-by: Russell Webb <russell.webb@protonmail.com>
LUCI-TryBot-Result: Go LUCI <golang-scoped@luci-project-accounts.iam.gserviceaccount.com>
Reviewed-by: Michael Knyszek <mknyszek@google.com>
Reviewed-by: Dmitri Shuralyov <dmitshur@google.com>
2024-07-31 23:30:25 +00:00
Ian Lance Taylor
fa861f8822 cmd/cgo: document workaround for C struct_stat function
For #68682

Change-Id: I13b61f915925a9ee510e0a42e95da7a83678b3b5
Reviewed-on: https://go-review.googlesource.com/c/go/+/602215
Reviewed-by: Cherry Mui <cherryyz@google.com>
Auto-Submit: Ian Lance Taylor <iant@google.com>
Reviewed-by: Ian Lance Taylor <iant@google.com>
LUCI-TryBot-Result: Go LUCI <golang-scoped@luci-project-accounts.iam.gserviceaccount.com>
2024-07-31 23:17:05 +00:00
Alan Donovan
2c1bbe7e32 go/types: add go1.23 iterator methods for 10 exported types
These methods will not be mirrored in types2 until the
bootstrap compiler reaches go1.23; therefore range-over-func
statements must not be used in code common to types + types2.

Fixes #66626

Change-Id: I3c2c15e3652ee95d9aff208d8a188b912ed5bc9a
Reviewed-on: https://go-review.googlesource.com/c/go/+/575455
LUCI-TryBot-Result: Go LUCI <golang-scoped@luci-project-accounts.iam.gserviceaccount.com>
Reviewed-by: Robert Findley <rfindley@google.com>
Reviewed-by: Robert Griesemer <gri@google.com>
2024-07-31 22:54:09 +00:00
Michael Pratt
0a4215c234 cmd/compile: keep internal/runtime packages sorted
This is a minor cleanup from CL 600436.

For #65355.

Cq-Include-Trybots: luci.golang.try:gotip-linux-amd64-longtest,gotip-darwin-amd64-longtest
Change-Id: I8e27f0c6ba6bd35f4aa2b9d53c394fb5f1eb433d
Reviewed-on: https://go-review.googlesource.com/c/go/+/595116
Reviewed-by: Austin Clements <austin@google.com>
Auto-Submit: Michael Pratt <mpratt@google.com>
Reviewed-by: Cherry Mui <cherryyz@google.com>
LUCI-TryBot-Result: Go LUCI <golang-scoped@luci-project-accounts.iam.gserviceaccount.com>
2024-07-31 22:11:37 +00:00