For a wasmexport wrapper, we generate a call to the actual
exported Go function, and use the wrapper function's PC 1 as the
(fake) return address. This address is not used for returning,
which is handled by the Wasm call stack. It is used for stack
unwinding, and PC 1 makes it past the prologue and therefore has
the right SP delta. But if the function has no arguments and
results, the wrapper is frameless, with no prologue, and PC 1
doesn't exist. This causes the unwinder to fail. In this case, we
put PC 0, which also has the correct SP delta (0).
Fixes#69584.
Change-Id: Ic047a6e62100db540b5099cc5a56a1d0f16d58b9
Reviewed-on: https://go-review.googlesource.com/c/go/+/624000
Reviewed-by: David Chase <drchase@google.com>
LUCI-TryBot-Result: Go LUCI <golang-scoped@luci-project-accounts.iam.gserviceaccount.com>
Check the various pie combinations with the new FIPS code.
For #69536.
Change-Id: I8fc771eab465c4af46a0ec8154d550c1bf95f7d4
Reviewed-on: https://go-review.googlesource.com/c/go/+/625999
LUCI-TryBot-Result: Go LUCI <golang-scoped@luci-project-accounts.iam.gserviceaccount.com>
Reviewed-by: Cherry Mui <cherryyz@google.com>
Don't report a (follow-on) error if a method is not found in a type
due to a prior error that made the type invalid, or which caused an
embedded field of a struct to have an invalid type (and thus one
cannot with certainty claim that a method is missing).
Fixes#53535.
Change-Id: Ib2879c6b3b9d927c93bbbf1d355397dd19f336f7
Reviewed-on: https://go-review.googlesource.com/c/go/+/626997
Auto-Submit: Robert Griesemer <gri@google.com>
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Reviewed-by: Robert Findley <rfindley@google.com>
Reviewed-by: Tim King <taking@google.com>
Reviewed-by: Robert Griesemer <gri@google.com>
Fixes#51269
Change-Id: I06747db18ca078c1f1bda9b7bc60006f53191f4d
Reviewed-on: https://go-review.googlesource.com/c/go/+/627035
LUCI-TryBot-Result: Go LUCI <golang-scoped@luci-project-accounts.iam.gserviceaccount.com>
Auto-Submit: Ian Lance Taylor <iant@google.com>
Reviewed-by: Michael Matloob <matloob@golang.org>
Reviewed-by: Ian Lance Taylor <iant@google.com>
Execution of the loop body previously either terminated
the iteration (returned false because of a break, goto, or
return) or actually panicked. The check against abi.RF_READY
ensures that the body can no longer run and also panics.
This CL in addition transitions the loop state to abi.RF_PANIC
so that if this already badly-behaved iterator defer-recovers
this panic, then the exit check at the loop context will
catch the problem and panic there.
Previously, panics triggered by attempted execution of a
no-longer active loop would not trigger a panic at the loop
context if they were defer-recovered.
Change-Id: Ieeed2fafd0d65edb66098dc27dc9ae8c1e6bcc8c
Reviewed-on: https://go-review.googlesource.com/c/go/+/625455
LUCI-TryBot-Result: Go LUCI <golang-scoped@luci-project-accounts.iam.gserviceaccount.com>
Reviewed-by: Tim King <taking@google.com>
Add cmd/internal/obj/mkcnames.go to do the generation and update
the architecture packages to use it to maintain the Cnames tables.
Currently works correctly on arm64,loong64,mips,ppc64 and s390x.
Change-Id: I5220b0ba6d8a8a5fcc4d9774731eb2af69a671af
Reviewed-on: https://go-review.googlesource.com/c/go/+/622256
Reviewed-by: David Chase <drchase@google.com>
Reviewed-by: Cherry Mui <cherryyz@google.com>
Reviewed-by: Meidan Li <limeidan@loongson.cn>
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Reviewed-by: Qiqi Huang <huangqiqi@loongson.cn>
Auto-Submit: Ian Lance Taylor <iant@golang.org>
Reviewed-by: sophie zhao <zhaoxiaolin@loongson.cn>
Commit-Queue: Ian Lance Taylor <iant@golang.org>
For FIPS init-time code+data verification, we need to arrange to
put the FIPS symbols into contiguous regions of the executable
and then record those sections along with the expected checksum.
The cmd/internal/obj changes identify the FIPS symbols and give
them distinguished types, which the linker then places in contiguous
regions. The linker also writes out information to use at run time
to find the FIPS sections, along with the expected hash.
See cmd/internal/obj/fips.go and cmd/link/internal/ld/fips.go
for more details.
The code is disabled in this commit.
CL 625998 and 625999 adds tests.
CL 626000 enables the code.
For #69536.
Change-Id: I48da6db94bc0bea7428c43d4abcf999527bccfcd
Reviewed-on: https://go-review.googlesource.com/c/go/+/625997
Auto-Submit: Russ Cox <rsc@golang.org>
Reviewed-by: Cherry Mui <cherryyz@google.com>
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This CL refers to the implementation of ARM64 and adds support for the following
types of SIMD instructions:
1. Move general-purpose register to a vector element, e.g.:
VMOVQ Rj, <Vd>.<T>[index]
<T> can have the following values:
B, H, W, V
2. Move vector element to general-purpose register, e.g.:
VMOVQ <Vj>.<T>[index], Rd
<T> can have the following values:
B, BU, H, HU, W, WU, VU
3. Duplicate general-purpose register to vector, e.g.:
VMOVQ Rj, <Vd>.<T>
<T> can have the following values:
B16, H8, W4, V2, B32, H16, W8, V4
4. Move vector, e.g.:
XVMOVQ Xj, <Xd>.<T>
<T> can have the following values:
B16, H8, W4, V2, Q1
5. Move vector element to scalar, e.g.:
XVMOVQ Xj, <Xd>.<T>[index]
XVMOVQ Xj.<T>[index], Xd
<T> can have the following values:
W, V
6. Move vector element to vector register, e.g.:
VMOVQ <Vn>.<T>[index], Vn.<T>
<T> can have the following values:
B, H, W, V
This CL only adds syntax and doesn't break any assembly that already exists.
Change-Id: I7656efac6def54da6c5ae182f39c2a21bfdf92bb
Reviewed-on: https://go-review.googlesource.com/c/go/+/616258
Reviewed-by: David Chase <drchase@google.com>
Reviewed-by: Meidan Li <limeidan@loongson.cn>
Reviewed-by: sophie zhao <zhaoxiaolin@loongson.cn>
Reviewed-by: Cherry Mui <cherryyz@google.com>
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This fixes a bug in the test only function Import where it looked for
the first instance of the string "\n$$\n" as the end of the exportdata
section. This should look for the last instance of "\n$$\n" within
the ar file.
Adds unit tests that demonstrate the error.
Added comments to tests that can correctly use the first instance.
Change-Id: I7a85afa41cf1c2902119516b757b7c6625d46d13
Reviewed-on: https://go-review.googlesource.com/c/go/+/626775
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Reviewed-by: Robert Griesemer <gri@google.com>
Return an error from FindExportData variants if the contents are not
an archive file.
Change-Id: I2fa8d3553638ef1de6a03e2ce46341f00ed6965f
Reviewed-on: https://go-review.googlesource.com/c/go/+/626697
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Reviewed-by: Robert Griesemer <gri@google.com>
Commit-Queue: Tim King <taking@google.com>
Fold constant int16 addends for usages of math/bits.Add64(x,const,0)
on PPC64. This usage shows up in a few crypto implementations;
notably the go wrapper for CL 626176.
Change-Id: I6963163330487d04e0479b4fdac235f97bb96889
Reviewed-on: https://go-review.googlesource.com/c/go/+/625899
Reviewed-by: Cherry Mui <cherryyz@google.com>
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Auto-Submit: Emmanuel Odeke <emmanuel@orijtech.com>
Reviewed-by: Keith Randall <khr@google.com>
Reviewed-by: Keith Randall <khr@golang.org>
Spun out of CL 626397, this change vendors in the latest
github.com/google/pprof and that also required updating
golang.org/x/sys to v0.27.
Change-Id: I72ee514494a9e7c36a8943d78f15bdd0445c5cd5
Reviewed-on: https://go-review.googlesource.com/c/go/+/626995
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For the loop body guarded by testing.B.Loop, we disable function inlining and devirtualization inside. The only legal form to be matched is `for b.Loop() {...}`.
For #61515
Change-Id: I2e226f08cb4614667cbded498a7821dffe3f72d8
Reviewed-on: https://go-review.googlesource.com/c/go/+/612043
Reviewed-by: Michael Pratt <mpratt@google.com>
TryBot-Bypass: Junyang Shao <shaojunyang@google.com>
Commit-Queue: Junyang Shao <shaojunyang@google.com>
Reviewed-by: Cherry Mui <cherryyz@google.com>
As proposed on #66984, this CL allows more types to be used as
wasmimport/wasmexport function parameters and results.
Specifically, bool, string, and uintptr are now allowed, and also
pointer types that point to allowed element types. Allowed element
types includes sized integer and floating point types (including
small integer types like uint8 which are not directly allowed as
a parameter type), bool, array whose element type is allowed, and
struct whose fields are allowed element type and also include a
struct.HostLayout field.
For #66984.
Change-Id: Ie5452a1eda21c089780dfb4d4246de6008655c84
Reviewed-on: https://go-review.googlesource.com/c/go/+/626615
Reviewed-by: David Chase <drchase@google.com>
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CL 521790 has experimentally enabled RegABI support on Loong64, so it
is possible to switch the Lookup function call to ABIInternal mode.
Change-Id: I3ae053e20c0791efebe6b6bdc9a1550a11372bc2
Reviewed-on: https://go-review.googlesource.com/c/go/+/544435
Reviewed-by: Qiqi Huang <huangqiqi@loongson.cn>
Reviewed-by: WANG Xuerui <git@xen0n.name>
Reviewed-by: Meidan Li <limeidan@loongson.cn>
Reviewed-by: David Chase <drchase@google.com>
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Reviewed-by: sophie zhao <zhaoxiaolin@loongson.cn>
Reviewed-by: Cherry Mui <cherryyz@google.com>
For: #70156
Change-Id: Ie39a88130f27b4b210ddbcf396cc0ddd2713d58b
Reviewed-on: https://go-review.googlesource.com/c/go/+/624855
Reviewed-by: Keith Randall <khr@google.com>
Reviewed-by: Keith Randall <khr@golang.org>
Reviewed-by: David Chase <drchase@google.com>
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Reviewed-by: Mauri de Souza Meneguzzo <mauri870@gmail.com>
Replaces 'recompile library' error messages with the more accurate
'recompile package' globally.
Change-Id: I7247964c76f1fcb94feda37c78bdfb8a1b1a6492
Reviewed-on: https://go-review.googlesource.com/c/go/+/626696
Reviewed-by: Alan Donovan <adonovan@google.com>
Commit-Queue: Tim King <taking@google.com>
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CL 622042 added rand as a compiler builtin, but did not update builtinlist.
Also update the mkbuiltin comment to refer to the current file location,
and add a comment for runtime.rand that it is called from the compiler.
For #54766
Change-Id: I99d2c0bb0658da333775afe2ed0447265c845c82
Reviewed-on: https://go-review.googlesource.com/c/go/+/626755
Reviewed-by: Cherry Mui <cherryyz@google.com>
Reviewed-by: Michael Pratt <mpratt@google.com>
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Auto-Submit: Ian Lance Taylor <iant@golang.org>
Drop support for the indexed format from the test-only Import
function.
Adds several TODOs for further tech debt reduction.
Change-Id: I45cc5ffce43082a145ccb918face067cdccc5ecd
Reviewed-on: https://go-review.googlesource.com/c/go/+/626695
Commit-Queue: Tim King <taking@google.com>
Reviewed-by: Alan Donovan <adonovan@google.com>
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Reviewed-by: Robert Findley <rfindley@google.com>
8-bit and 16-bit sign extensions and 32-bit zero extensions were realized
with left and right shifts before this change. We now support assembling
EXTWB, EXTWH and BSTRPICKV, so all three can be done with a single insn
respectively.
This patch is a copy of CL 479496.
Co-authored-by: WANG Xuerui <git@xen0n.name>
Change-Id: Iee5741dd9ebb25746f51008f3f6c86704339d615
Reviewed-on: https://go-review.googlesource.com/c/go/+/626195
Reviewed-by: Cherry Mui <cherryyz@google.com>
Reviewed-by: abner chenc <chenguoqi@loongson.cn>
Reviewed-by: David Chase <drchase@google.com>
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Change-Id: I1477c6249196dba58908ff8cc881914bf602ddd8
Reviewed-on: https://go-review.googlesource.com/c/go/+/622615
Reviewed-by: Cherry Mui <cherryyz@google.com>
Reviewed-by: Michael Matloob <matloob@golang.org>
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Reviewed-by: Sam Thanawalla <samthanawalla@google.com>
Auto-Submit: Sam Thanawalla <samthanawalla@google.com>
These will be necessary when we start using the new FIPS symbols.
Split into a separate CL so that these refactoring changes can be
tested separate from any FIPS-specific changes.
Passes golang.org/x/tools/cmd/toolstash/buildall.
Change-Id: I73e5873fcb677f1f572f0668b4dc6f3951d822bc
Reviewed-on: https://go-review.googlesource.com/c/go/+/625996
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Auto-Submit: Russ Cox <rsc@golang.org>
Add FIPS symbol kinds that will be needed for FIPS support.
This is a separate CL to keep the re-generated changes in
the string methods separate from hand-written changes.
The separate symbol kinds will let us group the FIPS-related
code and data together, so that it can be checksummed at
startup, as required by FIPS.
It's also separate because it breaks buildall, by changing the
on-disk symbol kind enumeration. We want non-buildall
changes to be as simple as possible.
For #69536.
Change-Id: I2d5a238498929fff8b24736ee54330c17323bd86
Reviewed-on: https://go-review.googlesource.com/c/go/+/625995
Auto-Submit: Russ Cox <rsc@golang.org>
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Reviewed-by: Cherry Mui <cherryyz@google.com>
As the comment notes, all calls to Errorf now pass nil,
so remove that argument entirely.
There is a TODO to remove uses of Errorf entirely, but
that seems wrong: sometimes there is no symbol on
which to report the error, and in that situation, Errorf is
appropriate. So clarify that in the docs.
Change-Id: I92b3b6e8e3f61ba8356ace8cd09573d0b55d7869
Reviewed-on: https://go-review.googlesource.com/c/go/+/625617
LUCI-TryBot-Result: Go LUCI <golang-scoped@luci-project-accounts.iam.gserviceaccount.com>
Reviewed-by: Cherry Mui <cherryyz@google.com>
The old API was to do
r := obj.AddRel(sym)
r.Type = this
r.Off = that
etc
The new API is:
sym.AddRel(ctxt, obj.Reloc{Type: this: Off: that, etc})
This new API is more idiomatic and avoids ever having relocations
that are only partially constructed. Most importantly, it sets up
for sym.AddRel being able to check relocation validity in the future.
(Passing ctxt is for use in validity checking.)
Passes golang.org/x/tools/cmd/toolstash/buildall.
Change-Id: I042ea76e61bb3bf6402f98ca11291a13f4799972
Reviewed-on: https://go-review.googlesource.com/c/go/+/625616
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Reviewed-by: Cherry Mui <cherryyz@google.com>
This CL provides vendor support for s390x disassembler plan9 syntax.
cd $GOROOT/src/cmd
go get golang.org/x/arch@master
go mod tidy
go mod vendor
For #15255
Change-Id: I20c87510a1aee2d1cf2df58feb535974c4c0e3ef
Reviewed-on: https://go-review.googlesource.com/c/go/+/623075
Reviewed-by: David Chase <drchase@google.com>
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Reviewed-by: Vishwanatha HD <vishwanatha.hd@ibm.com>
Reviewed-by: Cherry Mui <cherryyz@google.com>
Strictly speaking, the sort comparison was inconsistent
(and therefore invalid) for the sort-by-name case, if you had
a size 0
b size 1
c size 0
zerobase
That would result in the inconsistent comparison ordering:
a < b (by name)
b < c (by name)
c < zerobase (by zerobase rule)
zerobase < b (by zerobase rule)
This can't happen today because we only disable size-based
sort in a segment that has no zerobase symbol, but it's
confusing to reason through that, so clean up the code anyway.
Passes golang.org/x/tools/cmd/toolstash/buildall.
Change-Id: I21e4159cdedd2053952ba960530d1b0f28c6fb24
Reviewed-on: https://go-review.googlesource.com/c/go/+/625615
Reviewed-by: Cherry Mui <cherryyz@google.com>
LUCI-TryBot-Result: Go LUCI <golang-scoped@luci-project-accounts.iam.gserviceaccount.com>
For the SubFromLen64 codegen test case to work as intended, we need
to fold c-(-(x-d)) into x+(c-d).
Still, some instances of LeadingZeros are not optimized into single
CLZ instructions right now (actually, the LeadingZeros micro-benchmarks
are currently still compiled with redundant adds/subs of 64, due to
interference of loop optimizations before lowering), but perf numbers
indicate it's not that bad after all.
Micro-benchmark results on Loongson 3A5000 and 3A6000:
goos: linux
goarch: loong64
pkg: math/bits
cpu: Loongson-3A5000 @ 2500.00MHz
| bench.old | bench.new |
| sec/op | sec/op vs base |
LeadingZeros 3.660n ± 0% 1.348n ± 0% -63.17% (p=0.000 n=20)
LeadingZeros8 1.777n ± 0% 1.767n ± 0% -0.56% (p=0.000 n=20)
LeadingZeros16 2.816n ± 0% 1.770n ± 0% -37.14% (p=0.000 n=20)
LeadingZeros32 5.293n ± 1% 1.683n ± 0% -68.21% (p=0.000 n=20)
LeadingZeros64 3.622n ± 0% 1.349n ± 0% -62.76% (p=0.000 n=20)
geomean 3.229n 1.571n -51.35%
goos: linux
goarch: loong64
pkg: math/bits
cpu: Loongson-3A6000 @ 2500.00MHz
| bench.old | bench.new |
| sec/op | sec/op vs base |
LeadingZeros 2.410n ± 0% 1.103n ± 1% -54.23% (p=0.000 n=20)
LeadingZeros8 1.236n ± 0% 1.501n ± 0% +21.44% (p=0.000 n=20)
LeadingZeros16 2.106n ± 0% 1.501n ± 0% -28.73% (p=0.000 n=20)
LeadingZeros32 2.860n ± 0% 1.324n ± 0% -53.72% (p=0.000 n=20)
LeadingZeros64 2.6135n ± 0% 0.9509n ± 0% -63.62% (p=0.000 n=20)
geomean 2.159n 1.256n -41.81%
Updates #59120
This patch is a copy of CL 483356.
Co-authored-by: WANG Xuerui <git@xen0n.name>
Change-Id: Iee81a17f7da06d77a427e73dfcc016f2b15ae556
Reviewed-on: https://go-review.googlesource.com/c/go/+/624575
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Reviewed-by: Carlos Amedee <carlos@golang.org>
Reviewed-by: abner chenc <chenguoqi@loongson.cn>
A part of the keeping Go's vendored dependencies and generated code
up to date.
For #36905.
[git-generate]
cd src
go get golang.org/x/sys@v0.26.1-0.20241105152852-e0753d469443
go mod tidy
go mod vendor
cd cmd
go get golang.org/x/sys@v0.26.1-0.20241105152852-e0753d469443
go mod tidy
go mod vendor
go generate syscall internal/syscall/...
Change-Id: Ia84505f8934399f7c4518c6218892b81d30e5c17
Cq-Include-Trybots: luci.golang.try:gotip-linux-amd64-longtest
Reviewed-on: https://go-review.googlesource.com/c/go/+/623821
Reviewed-by: Dmitri Shuralyov <dmitshur@google.com>
TryBot-Bypass: Dmitri Shuralyov <dmitshur@golang.org>
Auto-Submit: Dmitri Shuralyov <dmitshur@golang.org>
Reviewed-by: Ian Lance Taylor <iant@google.com>
This CL adds support for git as a valid GOAUTH command.
Improves on implementation in cmd/auth/gitauth/gitauth.go
This follows the proposed design in
https://golang.org/issues/26232#issuecomment-461525141
For #26232
Cq-Include-Trybots: luci.golang.try:gotip-linux-amd64-longtest,gotip-windows-amd64-longtest
Change-Id: I07810d9dc895d59e5db4bfa50cd42cb909208f93
Reviewed-on: https://go-review.googlesource.com/c/go/+/605275
Reviewed-by: Damien Neil <dneil@google.com>
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Observed in the telemetry data. Was causing truncated error outputs.
Change-Id: I9f0a86e1e6caa855f97a3d6e51328c4c9685c937
Reviewed-on: https://go-review.googlesource.com/c/go/+/623535
Reviewed-by: Cherry Mui <cherryyz@google.com>
Reviewed-by: Cuong Manh Le <cuong.manhle.vn@gmail.com>
Reviewed-by: Robert Griesemer <gri@google.com>
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Auto-Submit: Russ Cox <rsc@golang.org>
Fixes: #70156
Change-Id: I2e5dc2a39a8e54ec5f18c5f9d1644208cffb2e9a
Reviewed-on: https://go-review.googlesource.com/c/go/+/624695
Auto-Submit: Keith Randall <khr@golang.org>
Reviewed-by: David Chase <drchase@google.com>
Reviewed-by: Mauri de Souza Meneguzzo <mauri870@gmail.com>
Reviewed-by: Keith Randall <khr@golang.org>
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Reviewed-by: Keith Randall <khr@google.com>
For #69994
Change-Id: I7db39074f6a055efb29c1cbd0db4c286864a5da6
Reviewed-on: https://go-review.googlesource.com/c/go/+/621996
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Reviewed-by: bcd a <letmetellsomediff@gmail.com>
Reviewed-by: Sam Thanawalla <samthanawalla@google.com>
Reviewed-by: Carlos Amedee <carlos@golang.org>
Auto-Submit: Sam Thanawalla <samthanawalla@google.com>
Compared with the version generated by dec64.rules based on Ctz32,
the number of assembly instructions is reduced by half.
SwissMap uses TrailingZeros64 to find the first match in its control
group and may benefit from this CL on 386 architectures.
goos: linux
goarch: 386
cpu: 13th Gen Intel(R) Core(TM) i7-13700H
│ old.txt │ new.txt │
│ sec/op │ sec/op vs base │
TrailingZeros64-20 0.8828n ± 1% 0.6299n ± 1% -28.65% (p=0.000 n=20)
Change-Id: Iba08a3f4e13efd3349715dfb7fcd5fd470286cd3
Reviewed-on: https://go-review.googlesource.com/c/go/+/624376
Reviewed-by: David Chase <drchase@google.com>
Reviewed-by: Keith Randall <khr@golang.org>
Reviewed-by: Keith Randall <khr@google.com>
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This moves the interception code ito package
cmd/go/internal/web/intercept so that it can also be used by
cmd/go/internal/auth.
For #26232
Change-Id: Id8148fca56f48adaf98ddd09a62657c08f890441
Reviewed-on: https://go-review.googlesource.com/c/go/+/625036
Reviewed-by: Sam Thanawalla <samthanawalla@google.com>
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A fallthrough statement can be a labeled fallthrough per Go spec.
However, the hasFallthrough function is not considering this case,
causing mis-compilation.
Fixing this by un-wrapping (possible nested) labeled fallthrough
statements if any.
Fixes#70173
Change-Id: Ic93d4fb75ff02703a32dfc63c3e84a8b7f78c261
Reviewed-on: https://go-review.googlesource.com/c/go/+/624717
Reviewed-by: Cherry Mui <cherryyz@google.com>
Reviewed-by: Keith Randall <khr@google.com>
Reviewed-by: Keith Randall <khr@golang.org>
Reviewed-by: Youlin Feng <fengyoulin@live.com>
Auto-Submit: Cuong Manh Le <cuong.manhle.vn@gmail.com>
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Fixes#70175
Change-Id: I13767d951455854b03ad6707ff9292cfe9097ee9
Reviewed-on: https://go-review.googlesource.com/c/go/+/624377
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Auto-Submit: Cuong Manh Le <cuong.manhle.vn@gmail.com>
Reviewed-by: Keith Randall <khr@google.com>
Auto-Submit: Keith Randall <khr@golang.org>
If a variadic call to a variadic function has not enough/too many
arguments, then print the variadic argument in dotdotdot form
instead of as a slice type in the error message.
Fixes#70150
Change-Id: I81a802619b3b66195b303e2df2bafeb1433ad310
Reviewed-on: https://go-review.googlesource.com/c/go/+/624335
Reviewed-by: Robert Griesemer <gri@google.com>
Reviewed-by: Robert Findley <rfindley@google.com>
Auto-Submit: Robert Griesemer <gri@google.com>
Auto-Submit: Robert Findley <rfindley@google.com>
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Update the comments about the list of Unix systems after CL 601357,
which moved one copy and eliminated another.
Change-Id: I12f5b14a53ce6f8b3a41c9a10f947465c291e2b6
Reviewed-on: https://go-review.googlesource.com/c/go/+/623035
Reviewed-by: Ian Lance Taylor <iant@google.com>
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Reviewed-by: Dmitri Shuralyov <dmitshur@golang.org>
Reviewed-by: Dmitri Shuralyov <dmitshur@google.com>
Add support for assembling the FMA instructions present in the LoongArch
base ISA v1.00. This requires adding a new instruction format and making
use of a third source operand, which is put in RestArgs[0].
The single-precision instructions have the `.s` prefix in their official
mnemonics, and similar Go asm instructions all have `S` prefix for the
other architectures having FMA support, but in this change they instead
have `F` prefix in Go asm because loong64 currently follows the mips
backends in the naming convention. This could be changed later because
FMA is fully expressible in pure Go, making it unlikely to have to hand-
write such assembly in the wild.
Example mapping between actual encoding and Go asm syntax:
fmadd.s fd, fj, fk, fa -> FMADDF fa, fk, fj, fd
(prog.From = fa, prog.Reg = fk, prog.RestArgs[0] = fj and prog.To = fd)
fmadd.s fd, fd, fk, fa -> FMADDF fa, fk, fd
(prog.From = fa, prog.Reg = fk and prog.To = fd)
This patch is a copy of CL 477716.
Co-authored-by: WANG Xuerui <git@xen0n.name>
Change-Id: I9b4e4c601d6c5a854ee238f085849666e4faf090
Reviewed-on: https://go-review.googlesource.com/c/go/+/623877
Reviewed-by: abner chenc <chenguoqi@loongson.cn>
Reviewed-by: Cherry Mui <cherryyz@google.com>
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Fixes#70023
Change-Id: Ibac9c242f52a605e5fc307bdcaedb359bc2b1de9
Reviewed-on: https://go-review.googlesource.com/c/go/+/622238
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Reviewed-by: Michael Matloob <matloob@golang.org>
Auto-Submit: Ian Lance Taylor <iant@golang.org>
Commands run (in both src and src/cmd):
go get golang.org/x/text@v0.19.0
go mod tidy
go mod vendor
This is in preparation for vendoring an updated x/tools it has a
requirement on x/text v0.19.0.
Change-Id: Ia61f668ce802a039d441eff1c3a105653edcc9cd
Reviewed-on: https://go-review.googlesource.com/c/go/+/623856
Reviewed-by: Carlos Amedee <carlos@golang.org>
Reviewed-by: Ian Lance Taylor <iant@google.com>
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Reviewed-by: Meidan Li <limeidan@loongson.cn>
Reviewed-by: abner chenc <chenguoqi@loongson.cn>
Auto-Submit: Ian Lance Taylor <iant@google.com>
Ever since we had to upgrade from our COS image, we've been experiencing
TSAN test failures. My best guess is that the ASLR randomization entropy
increased, causing TSAN to fail. TSAN already re-execs itself in Clang
18+ with ASLR disabled, so just execute the tests with ASLR disabled on
Linux.
Fixes#59418.
Change-Id: Icb4536ddf0f2f5e7850734564d40f5a208ab8d01
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Reviewed-by: Keith Randall <khr@google.com>
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This patch is a copy of CL 478595.
Co-authored-by: WANG Xuerui <git@xen0n.name>
Change-Id: Ifb6e8183c83a5dfe5dec84e173a74d5de62692a0
Reviewed-on: https://go-review.googlesource.com/c/go/+/623875
Reviewed-by: Carlos Amedee <carlos@golang.org>
Reviewed-by: abner chenc <chenguoqi@loongson.cn>
Reviewed-by: Michael Pratt <mpratt@google.com>
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All remaining unary bitop instructions in the LoongArch v1.00 base ISA
are added with this change.
While at it, add the missing W suffix to the current CLO/CLZ names. They
are not used anywhere as far as we know, so no breakage is expected.
Also, stop reusing SLL's instruction format for simplicity, in favor of
a new but trivial instruction format case.
This patch is a copy of CL 477717.
Co-authored-by: WANG Xuerui <git@xen0n.name>
Change-Id: Idbcaca25dda1ed313674ef8b26da722e8d7151c0
Reviewed-on: https://go-review.googlesource.com/c/go/+/623876
Reviewed-by: abner chenc <chenguoqi@loongson.cn>
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Reviewed-by: Carlos Amedee <carlos@golang.org>
Reviewed-by: Cherry Mui <cherryyz@google.com>
Commands run (in both src and src/cmd):
go get golang.org/x/sys@v0.26.0
go mod tidy
go mod vendor
This is in preparation for vendoring an updated x/tools it has a
requirement on x/sys v0.26.0.
Change-Id: I122bb3a3bc97610ba71c52263b99c56e3354b59d
Reviewed-on: https://go-review.googlesource.com/c/go/+/623855
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Reviewed-by: abner chenc <chenguoqi@loongson.cn>
Reviewed-by: Carlos Amedee <carlos@golang.org>
This gives us a place to clarify what the problem is
and how people should fix it.
For #65656Fixes#70093
Change-Id: I555399c52e9b72a7a66f0bd38df178c0efad6c27
Reviewed-on: https://go-review.googlesource.com/c/go/+/623815
Reviewed-by: Sam Thanawalla <samthanawalla@google.com>
Reviewed-by: Ian Lance Taylor <iant@google.com>
Auto-Submit: Ian Lance Taylor <iant@google.com>
Commit-Queue: Ian Lance Taylor <iant@google.com>
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Currently, at a cgo callback where there is already a Go frame on
the stack (i.e. C->Go->C->Go), we require that at the inner Go
callback the SP is within the g0's stack bounds set by a previous
callback. This is to prevent that the C code switches stack while
having a Go frame on the stack, which we don't really support. But
this could also happen when we cannot get accurate stack bounds,
e.g. when pthread_getattr_np is not available. Since the stack
bounds are just estimates based on the current SP, if there are
multiple C->Go callbacks with various stack depth, it is possible
that the SP of a later callback falls out of a previous call's
estimate. This leads to runtime throw in a seemingly reasonable
program.
This CL changes it to save the old g0 stack bounds at cgocallback,
update the bounds, and restore the old bounds at return. So each
callback will get its own stack bounds based on the current SP,
and when it returns, the outer callback has the its old stack
bounds restored.
Also, at a cgo callback when there is no Go frame on the stack,
we currently always get new stack bounds. We do this because if
we can only get estimated bounds based on the SP, and the stack
depth varies a lot between two C->Go calls, the previous
estimates may be off and we fall out or nearly fall out of the
previous bounds. But this causes a performance problem: the
pthread API to get accurate stack bounds (pthread_getattr_np) is
very slow when called on the main thread. Getting the stack bounds
every time significantly slows down repeated C->Go calls on the
main thread.
This CL fixes it by "caching" the stack bounds if they are
accurate. I.e. at the second time Go calls into C, if the previous
stack bounds are accurate, and the current SP is in bounds, we can
be sure it is the same stack and we don't need to update the bounds.
This avoids the repeated calls to pthread_getattr_np. If we cannot
get the accurate bounds, we continue to update the stack bounds
based on the SP, and that operation is very cheap.
On a Linux/AMD64 machine with glibc:
name old time/op new time/op delta
CgoCallbackMainThread-8 96.4µs ± 3% 0.1µs ± 2% -99.92% (p=0.000 n=10+9)
Fixes#68285.
Fixes#68587.
Change-Id: I3422badd5ad8ff63e1a733152d05fb7a44d5d435
Reviewed-on: https://go-review.googlesource.com/c/go/+/600296
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This is the only non-vendored file that imports x/sys/unix.
Switch to fetching the information in this package.
Change-Id: I4e54c2cd8b4953066e2bee42922f35c387fb43e9
Reviewed-on: https://go-review.googlesource.com/c/go/+/623435
Auto-Submit: Ian Lance Taylor <iant@google.com>
Commit-Queue: Ian Lance Taylor <iant@google.com>
Reviewed-by: Ian Lance Taylor <iant@google.com>
Reviewed-by: Michael Pratt <mpratt@google.com>
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The compiler will stack allocate the Map struct and initial group if
possible.
Stack maps are initialized inline without calling into the runtime.
Small heap allocated maps use makemap_small.
These are the same heuristics as existing maps.
For #54766.
Cq-Include-Trybots: luci.golang.try:gotip-linux-amd64-longtest-swissmap
Change-Id: I6c371d1309716fd1c38a3212d417b3c76db5c9b9
Reviewed-on: https://go-review.googlesource.com/c/go/+/622042
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Reviewed-by: Keith Randall <khr@google.com>
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A previous CL kept it across loop iterations, but those are more rare
than call iterations.
For #54766.
Cq-Include-Trybots: luci.golang.try:gotip-linux-amd64-longtest-swissmap
Change-Id: Ieea0f1677e357f5e451650b1c697da7f63f3bca1
Reviewed-on: https://go-review.googlesource.com/c/go/+/621116
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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Keep only a single seed; initialize it; and reset it when the map is
empty.
For #54766.
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Change-Id: Icc231f70957337a2d0dcd9c7daf9bd3cb4354d71
Reviewed-on: https://go-review.googlesource.com/c/go/+/616466
Auto-Submit: Michael Pratt <mpratt@google.com>
Reviewed-by: Keith Randall <khr@golang.org>
Reviewed-by: Keith Randall <khr@google.com>
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Add all the specialized variants that exist for the existing maps.
Like the existing maps, the fast variants do not support indirect
key/elem.
Note that as of this CL, the Get and Put methods on Map/table are
effectively dead. They are only reachable from the internal/runtime/maps
unit tests.
For #54766.
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Change-Id: I95297750be6200f34ec483e4cfc897f048c26db7
Reviewed-on: https://go-review.googlesource.com/c/go/+/616463
Reviewed-by: Keith Randall <khr@golang.org>
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We use the same heuristics as existing maps.
For #54766.
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Change-Id: I44bb51483cae2c1714717f1b501850fb9e55a39a
Reviewed-on: https://go-review.googlesource.com/c/go/+/616461
Auto-Submit: Michael Pratt <mpratt@google.com>
Reviewed-by: Keith Randall <khr@google.com>
Reviewed-by: Keith Randall <khr@golang.org>
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This is the same design as existing maps.
For #54766.
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Change-Id: I5f6ef5fea1e0f0616bcd90eaae7faee4cdac58c6
Reviewed-on: https://go-review.googlesource.com/c/go/+/616460
Reviewed-by: Keith Randall <khr@golang.org>
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Regenerate RISC-V instruction table from the riscv-opcodes repository,
due to various changes and shuffling upstream.
This has been changed to remove pseudo-instructions, since Go only
needs the instruction encodings and including the pseudo-instructions
is creating unnecessary complications (for example, the inclusion
of ANOP and ARET, as well as strangely named aliases such as
AJALPSEUDO/AJALRPSEUDO). Remove pseudo-instructions that are not
currently supported by the assembler and add specific handling for
RDCYCLE, RDTIME and RDINSTRET, which were previously implemented
via the instruction encodings.
Change-Id: I78be4506ba6b627eba1f321406081a63bab5b2e6
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Rather than storing the same type pointer in multiple places, just pass
it around.
For #54766.
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Change-Id: Ia6c74805c7a44125ae473177b317f16c6688e6de
Reviewed-on: https://go-review.googlesource.com/c/go/+/622377
Auto-Submit: Michael Pratt <mpratt@google.com>
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Reviewed-by: Keith Randall <khr@golang.org>
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If there is a phi that is computing the minimum of its two inputs,
then we know the result of the phi is smaller than or equal to both
of its inputs. Similarly for maxiumum (although max seems less useful).
This pattern happens for the case
n := copy(a, b)
n is the minimum of len(a) and len(b), so with this optimization we
know both n <= len(a) and n <= len(b). That extra information is
helpful for subsequent slicing of a or b.
Fixes#16833
Change-Id: Ib4238fd1edae0f2940f62a5516a6b363bbe7928c
Reviewed-on: https://go-review.googlesource.com/c/go/+/622240
Reviewed-by: Carlos Amedee <carlos@golang.org>
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BGT, BLT, BLE, BGE, BNE, BVS, BVC, and BEQ support by assembler. This will simplify the usage of BC constructs like
BC 12, 30, LR <=> BEQ CR7, LR
BC 12, 2, LR <=> BEQ CR0, LR
BC 12, 0, target <=> BLT CR0, target
BC 12, 2, target <=> BEQ CR0, target
BC 12, 5, target <=> BGT CR1, target
BC 12, 30, target <=> BEQ CR7, target
BC 4, 6, target <=> BNE CR1, target
BC 4, 5, target <=> BLE CR1, target
code cleanup based on the above additions.
Change-Id: I02fdb212b6fe3f85ce447e05f4d42118c9ce63b5
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Reviewed-by: Michael Pratt <mpratt@google.com>
Assembler support provided for the instructions DADD, DSUB, DMUL, and DDIV.
Change-Id: Ic12ba02ce453cb1ca275334ca1924fb2009da767
Reviewed-on: https://go-review.googlesource.com/c/go/+/620856
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Reviewed-by: Dmitri Shuralyov <dmitshur@google.com>
Add support to `go tool objdump` for disassembling riscv64 binaries.
Revendor to bring in cmd/vendor/golang.org/x/arch/riscv64/riscv64asm,
which provides the actual disassembly implementation.
Fixes#36738
Change-Id: I0f29968509041c0c5698fc2d6910a6a0bea9d3c0
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Masking the shift lets the compiler elide a few instructions for
handling a shift of > 63 bits.
For #54766.
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Change-Id: I669fe01caa1de1b8521f1f56b6906f3e9066a39b
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Reviewed-by: Keith Randall <khr@google.com>
First, skip all the allocation count tests.
In some cases this aligns with existing skips for -race, but in others
we've got new issues. These are debug modes, so some performance loss is
expected, and this is clearly no worse than today where the tests fail.
Next, skip internal linking and static linking tests for msan and asan.
With asan we get an explicit failure that neither are supported by the C
and/or Go compilers. With msan, we only get the Go compiler telling us
internal linking is unavailable. With static linking, we segfault
instead. Filed #70080 to track that.
Next, skip some malloc tests with asan that don't quite work because of
the redzone.
This is because of some sizeclass assumptions that get broken with the
redzone and the fact that the tiny allocator is effectively disabled
(again, due to the redzone).
Next, skip some runtime/pprof tests with asan, because of extra
allocations.
Next, skip some malloc tests with asan that also fail because of extra
allocations.
Next, fix up memstats accounting for arenas when asan is enabled. There
is a bug where more is added to the stats than subtracted. This also
simplifies the accounting a little.
Next, skip race tests with msan or asan enabled; they're mutually
incompatible.
Fixes#70054.
Fixes#64256.
Fixes#64257.
For #70079.
For #70080.
Change-Id: I99c02a0b9d621e44f1f918b307aa4a4944c3ec60
Cq-Include-Trybots: luci.golang.try:gotip-linux-amd64-asan-clang15,gotip-linux-amd64-msan-clang15
Reviewed-on: https://go-review.googlesource.com/c/go/+/622855
Reviewed-by: Cherry Mui <cherryyz@google.com>
TryBot-Bypass: Michael Knyszek <mknyszek@google.com>
If the map contains 8 or fewer entries, it is wasteful to have a
directory that points to a table that points to a group.
Add a special case that replaces the directory with a direct pointer to
a group.
We could theoretically do similar for single table maps (no directory,
just point directly to a table), but that is left for later.
For #54766.
Cq-Include-Trybots: luci.golang.try:gotip-linux-amd64-longtest-swissmap
Change-Id: I6fc04dfc11c31dadfe5b5d6481b4c4abd43d48ed
Reviewed-on: https://go-review.googlesource.com/c/go/+/611188
Reviewed-by: Keith Randall <khr@golang.org>
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For #54766.
Cq-Include-Trybots: luci.golang.try:gotip-linux-amd64-longtest-swissmap
Change-Id: Ie21ef0f33f42735eadccd75eeebb3b5e81c2f459
Reviewed-on: https://go-review.googlesource.com/c/go/+/618535
Auto-Submit: Michael Pratt <mpratt@google.com>
Reviewed-by: Michael Knyszek <mknyszek@google.com>
Commit-Queue: Michael Pratt <mpratt@google.com>
Reviewed-by: David Chase <drchase@google.com>
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internal/syscall/windows already provides a function to get the Windows
version. There is no need to use golang.org/x/sys/windows for this.
Change-Id: If31e9c662b10716ed6c3e9054604366e494345cf
Reviewed-on: https://go-review.googlesource.com/c/go/+/622815
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Reviewed-by: Carlos Amedee <carlos@golang.org>
Reviewed-by: Ian Lance Taylor <iant@google.com>
This change amends the long-form help output for 'go help build' and
'go help testflag' to specify that the '-coverpkg' flag operates
explicitly on import paths as well as package names. Import paths are
fundamental for precise specification of packages versus unqualified
package names, and the naming of the flag '-coverpkg' and its original
documentation leads a user to assume that it only operates on the
simple, unqualified package name form. The situation warrants
clarification.
Fixes#69653
Change-Id: Ifde6a974405ce1614e28898fc2b92ed5bad94e57
GitHub-Last-Rev: 466c662a70
GitHub-Pull-Request: golang/go#69655
Reviewed-on: https://go-review.googlesource.com/c/go/+/616257
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Reviewed-by: Michael Matloob <matloob@golang.org>
Auto-Submit: Ian Lance Taylor <iant@google.com>
Reviewed-by: Rob Pike <r@golang.org>
Reviewed-by: Michael Knyszek <mknyszek@google.com>
Change-Id: Ib64b1f641fcf795a51aaf31639d37927dab519e5
Reviewed-on: https://go-review.googlesource.com/c/go/+/622237
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Reviewed-by: Cherry Mui <cherryyz@google.com>
The old test relied on naming conventions. The new test
uses an explicit parent pointer chain initialized when the
closures are created (in the same place that the names
used in the older fragile test were assigned).
Fixes#70035.
Change-Id: Ie834103c7096e4505faaff3bed1fc6e918a21211
Reviewed-on: https://go-review.googlesource.com/c/go/+/622656
Reviewed-by: Keith Randall <khr@golang.org>
Reviewed-by: Keith Randall <khr@google.com>
Reviewed-by: Cuong Manh Le <cuong.manhle.vn@gmail.com>
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Fixes#66966
Change-Id: I92777a7d7d8afaa82ffcd605aa3e607289b645f1
Reviewed-on: https://go-review.googlesource.com/c/go/+/622477
Reviewed-by: Keith Randall <khr@golang.org>
Reviewed-by: Keith Randall <khr@google.com>
Reviewed-by: Cherry Mui <cherryyz@google.com>
Auto-Submit: Ian Lance Taylor <iant@golang.org>
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This patch adds prologue_end statement to the DWARF info for riscv64,
which delve debugger uses for skip stacksplit prologue.
Change-Id: I4e5d9c26202385f65b3118b16f53f66de9d327f0
Reviewed-on: https://go-review.googlesource.com/c/go/+/620295
Reviewed-by: Hyang-Ah Hana Kim <hyangah@gmail.com>
Reviewed-by: Meng Zhuo <mengzhuo1203@gmail.com>
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Reviewed-by: Cherry Mui <cherryyz@google.com>
Update references to version 20240411 of the RISC-V specifications.
Reorder and regroup instructions to maintain ordering.
Change-Id: Iea2a5d22ad677e04948e9a9325986ad301c03f35
Reviewed-on: https://go-review.googlesource.com/c/go/+/616115
Reviewed-by: Cherry Mui <cherryyz@google.com>
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Reviewed-by: Mark Ryan <markdryan@rivosinc.com>
Reviewed-by: Meng Zhuo <mengzhuo1203@gmail.com>
Reviewed-by: David Chase <drchase@google.com>
Change-Id: I03ba70076d6dd3c0b9624d14699b7dd91a3c0e9b
Reviewed-on: https://go-review.googlesource.com/c/go/+/618476
Reviewed-by: Keith Randall <khr@golang.org>
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Reviewed-by: Keith Randall <khr@google.com>
Auto-Submit: Cuong Manh Le <cuong.manhle.vn@gmail.com>
On Solaris the default (non-GNU) C linker doesn't support the
--build-id flag (and I'm not aware of any alternative). So check
that the linker supports the flag before passing it.
Updates #41004, #63934.
Cq-Include-Trybots: luci.golang.try:gotip-solaris-amd64
Change-Id: I4379e5bf6eb495154d663ac4ed802ecb11fcf91c
Reviewed-on: https://go-review.googlesource.com/c/go/+/621639
Reviewed-by: Ian Lance Taylor <iant@google.com>
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CL 621357 introduced new generic lowering rules which caused
several shift related codegen test failures.
Add new rules to fix the test regressions, and cleanup tests
which are changed but not regressed. Some CLRLSLDI tests are
removed as they are no test CLRLSLDI rules.
Fixes#70003
Change-Id: I1ecc5a7e63ab709a4a0cebf11fa078d5cf164034
Reviewed-on: https://go-review.googlesource.com/c/go/+/622236
Reviewed-by: Keith Randall <khr@golang.org>
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Reviewed-by: Keith Randall <khr@google.com>
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We were missing a case for calling a C function with an index
into a pointer-to-array.
Fixes#70016
Change-Id: I9c74d629e58722813c1aaa0f0dc225a5a64d111b
Reviewed-on: https://go-review.googlesource.com/c/go/+/621576
Reviewed-by: Keith Randall <khr@google.com>
Reviewed-by: Michael Knyszek <mknyszek@google.com>
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Auto-Submit: Ian Lance Taylor <iant@golang.org>
Reviewed-by: Keith Randall <khr@golang.org>
This adds V0 through V31 as vector registers, which are available on CPUs
that support the V extension.
Change-Id: Ibffee3f9a2cf1d062638715b3744431d72d451ce
Reviewed-on: https://go-review.googlesource.com/c/go/+/595404
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Reviewed-by: Michael Pratt <mpratt@google.com>
Reviewed-by: 鹏程汪 <wangpengcheng.pp@bytedance.com>
Regenerate the riscv instruction encoding table with the V extension
enabled. Add constants and names for the resulting 375 instructions.
Change-Id: Icce688493aeb1e9880fb76a0618643f57e481273
Reviewed-on: https://go-review.googlesource.com/c/go/+/595403
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Reviewed-by: 鹏程汪 <wangpengcheng.pp@bytedance.com>
Reviewed-by: Meng Zhuo <mengzhuo1203@gmail.com>
Reviewed-by: Mark Ryan <markdryan@rivosinc.com>
Reviewed-by: Michael Pratt <mpratt@google.com>
Change-Id: I49c7107d9624c9a8aa97dcc87e2d4722b9ba0a20
Reviewed-on: https://go-review.googlesource.com/c/go/+/622055
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Reviewed-by: Tim King <taking@google.com>
Reviewed-by: Robert Griesemer <gri@google.com>
Auto-Submit: Robert Griesemer <gri@google.com>
Flags from CGo directives should be placed before extldflags so that
extldflags get more preference. This is also the order followed by the
final link command.
Fixes#69350
Change-Id: I2cfb22ae4ea7a160cc614440e88ef2eb82ea7399
Reviewed-on: https://go-review.googlesource.com/c/go/+/614275
Reviewed-by: Cherry Mui <cherryyz@google.com>
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Auto-Submit: Ian Lance Taylor <iant@golang.org>
Commit-Queue: Ian Lance Taylor <iant@golang.org>
Fixes#69635
Change-Id: I4f8d7dafb34ccfb943c29f96c982278ab7edcd05
Reviewed-on: https://go-review.googlesource.com/c/go/+/621357
Reviewed-by: Keith Randall <khr@golang.org>
Reviewed-by: Keith Randall <khr@google.com>
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Reviewed-by: Michael Pratt <mpratt@google.com>
Change the description of an operand x that has a named type of sorts
by providing a description of the type structure (array, struct, slice,
pointer, etc).
For instance, given a (variable) operand x of a struct type T, the
operand is mentioned as (new):
x (variable of struct type T)
instead of (old):
x (variable of type T)
This approach is also used when a basic type is renamed, for instance
as in:
x (value of uint type big.Word)
which makes it clear that big.Word is a uint.
This change is expected to produce more informative error messages.
Fixes#69955.
Change-Id: I544b0698f753a522c3b6e1800a492a94974fbab7
Reviewed-on: https://go-review.googlesource.com/c/go/+/621458
Reviewed-by: Alan Donovan <adonovan@google.com>
Auto-Submit: Robert Griesemer <gri@google.com>
Reviewed-by: Robert Griesemer <gri@google.com>
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Simplify functionality of compositeKind (formerly: kindString) by
giving it a smaller scope. Move it into operand.go for future use
in that file. Adjust existing uses.
Change-Id: I73d04a8c0be44d9604e56bd4c0289afdcdd32238
Reviewed-on: https://go-review.googlesource.com/c/go/+/621457
Reviewed-by: Robert Griesemer <gri@google.com>
Auto-Submit: Robert Griesemer <gri@google.com>
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Reviewed-by: Tim King <taking@google.com>
This change improves error message for recursive types.
Currently, compilation of the [following program](https://go.dev/play/p/3ef84ObpzfG):
package main
type T1[T T2] struct{}
type T2[T T1] struct{}
returns an error:
./prog.go:3:6: invalid recursive type T1
./prog.go:3:6: T1 refers to
./prog.go:4:6: T2 refers to
./prog.go:3:6: T1
With the patch applied the error message looks like:
./prog.go:3:6: invalid recursive type T1
./prog.go:3:6: T1 refers to T2
./prog.go:4:6: T2 refers to T1
Change-Id: Ic07cdffcffb1483c672b241fede4e694269b5b79
GitHub-Last-Rev: cd042fdc38
GitHub-Pull-Request: golang/go#69574
Reviewed-on: https://go-review.googlesource.com/c/go/+/614084
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This causes more inlining for rangefunc code.
The PAUTOHEAP case catches closure-passed-as-param
to function that returns a closure, that calls the
outer PPARAM.
Change-Id: I927cf2e1924ed2191e0ad8be9a1f2e793b6f2b38
Reviewed-on: https://go-review.googlesource.com/c/go/+/620220
Reviewed-by: Keith Randall <khr@golang.org>
Reviewed-by: Keith Randall <khr@google.com>
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If a function f being considered for inlining calls
one of its parameters, reduce the normal cost of that
call (57) to 17 to increase the chance that f will
be inlined and (with luck) that parameter will be
revealed as a constant function (which unblocks
escape analysis) or perhaps even be inlined.
The least-change value for that was still effective for
iter_test benchmarks was 32; however tests showed no
particular harm even when reduced as low as 7, and there
have been reports of other performance problems with
rangefunc overheads and so I picked a middling number
in hopes of warding off such reports.
Updates #69015
Change-Id: I2a525c1beffb9f88daa14caa8a622864b023675c
Reviewed-on: https://go-review.googlesource.com/c/go/+/609095
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Reviewed-by: Keith Randall <khr@google.com>
Reviewed-by: Tim King <taking@google.com>
Reviewed-by: Keith Randall <khr@golang.org>
The spill/restore code around morestack is almost never exectued, so
we should make it as small as possible. Using 2-register loads/stores
makes sense here. Also, the offsets from SP are pretty small so the
offset almost always fits in the (smaller than a normal load/store)
offset field of the instruction.
Makes cmd/go 0.6% smaller.
Change-Id: I8845283c1b269a259498153924428f6173bda293
Reviewed-on: https://go-review.googlesource.com/c/go/+/621556
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As described in issue #69912, type checking dot-imported identifiers can
result in a call to objDecl on an imported object, which leads to a data
race to the color_ field.
There are multiple potential fixes for this race. Opt for avoiding the
call to objDecl altogether, rather than setting color_ during import.
The color_ field is an internal property of objects that should only be
valid during the type checking of their package. We should not be
calling objDecl on imported objects.
Fixes#69912
Change-Id: I55eb652479715f2a7ac84104db2f448091c4e7ac
Reviewed-on: https://go-review.googlesource.com/c/go/+/621637
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Reviewed-by: Alan Donovan <adonovan@google.com>
For #54766.
Cq-Include-Trybots: luci.golang.try:gotip-linux-ppc64_power10,gotip-linux-amd64-longtest-swissmap
Change-Id: I6695c0b143560d974b710e1d78e7a7d09278f7cc
Reviewed-on: https://go-review.googlesource.com/c/go/+/620215
Reviewed-by: Keith Randall <khr@golang.org>
Reviewed-by: Keith Randall <khr@google.com>
Auto-Submit: Michael Pratt <mpratt@google.com>
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Currently, for Wasm, the linker sets the initial memory size to
the size of global data plus 16 MB. The intention is that it
covers the global data and runtime initialization without growing
the linear memory. However, the code accounts only the data
"section", not the bss "section", therefore the extra 16 MB is
actually used to cover bss variables. Also, as seen on the
previous CL, the runtime actually didn't use the extra space,
which means the program can start without that space.
This CL corrects the global data size calculation, and reduces the
extra to 1 MB. Currently the runtime's allocation pattern at
startup is that it allocates a few pages for the page allocator's
metadata, the an 8 MB reservation for the first 4 MB size, 4 MB
aligned heap arena (it may be possible to reduce that, but we'll
leave that for later). Here we use 1 MB extra space to cover the
small allocations, but let the runtime allocate the heap arena, so
the linker code and the runtime's allocator are not tightly
coupled.
For #69018.
Change-Id: I39fe1172382ecc03f4b537e43ec710af8075eab3
Reviewed-on: https://go-review.googlesource.com/c/go/+/621636
Reviewed-by: Michael Knyszek <mknyszek@google.com>
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CL 603736 added a check looking for a specific trampoline symbol
name. PPC64 uses a slightly different name for the trampoline,
update the test to accept both.
Change-Id: I177dadb25d82bc3ffeb7530d7ab865482d907d34
Reviewed-on: https://go-review.googlesource.com/c/go/+/621455
Reviewed-by: Cherry Mui <cherryyz@google.com>
Auto-Submit: Paul Murphy <murp@ibm.com>
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Change-Id: I7ff869e21e67cf6a193f7a92bf7b05f047ee005c
GitHub-Last-Rev: bf01f58249
GitHub-Pull-Request: golang/go#69957
Reviewed-on: https://go-review.googlesource.com/c/go/+/620778
Reviewed-by: Michael Pratt <mpratt@google.com>
Reviewed-by: Ian Lance Taylor <iant@google.com>
Auto-Submit: Ian Lance Taylor <iant@google.com>
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On ELF, default to "-B gobuildid", so it generates GNU build ID
based on Go buildid by default.
Updates #41004.
Fixes#63934.
Fixes#68652.
Change-Id: I5619dfaa4eeb6575c52922ae1de3430b46e31db6
Reviewed-on: https://go-review.googlesource.com/c/go/+/618601
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Reviewed-by: Than McIntosh <thanm@golang.org>
This is similar to CL 618597, but for GNU build ID on ELF. This
makes it possible to enable "-B gobuildid" by default on ELF.
Updates #41004.
For #63934.
Change-Id: I4e663a27a2f7824bce994c783fe6d9ce8d1a395a
Reviewed-on: https://go-review.googlesource.com/c/go/+/618600
Reviewed-by: Than McIntosh <thanm@golang.org>
Reviewed-by: Michael Knyszek <mknyszek@google.com>
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Currently, on Mach-O, the -B UUID setting is only applied in
internal linking mode, whereas in external linking mode the UUID
is always rewritten to a hash of Go build ID. This CL makes it
apply to external linking as well. This makes the behavior
consistent on both linkmodes, and also consistent with the -B
flag's behavior for GNU build ID on ELF.
Add tests.
Updates #68678.
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Change-Id: I276a5930e231141440cdba16e8812df28ac4237b
Reviewed-on: https://go-review.googlesource.com/c/go/+/618599
Reviewed-by: Than McIntosh <thanm@golang.org>
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Reviewed-by: Dmitri Shuralyov <dmitshur@google.com>
On Mach-O, default to "-B gobuildid", so it generates the UUID
based on Go buildid by default.
Fixes#68678.
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Change-Id: I6c1a6bcafd8370a13174657e05d7d9620a8d4f12
Reviewed-on: https://go-review.googlesource.com/c/go/+/618598
Reviewed-by: Michael Knyszek <mknyszek@google.com>
Reviewed-by: Than McIntosh <thanm@golang.org>
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With the "-B gobuildid" linker option (which will be the default
on some platforms), the host build ID (GNU build ID, Mach-O UUID)
depends on the Go buildid. If the host build ID is included in the
Go buildid computation, it will lead to convergence problem for
the toolchain binaries. So ignore the host build ID in the buildid
computation.
This CL only handles Mach-O UUID. ELF GNU build ID will be handled
later.
For #68678.
For #63934.
Cq-Include-Trybots: luci.golang.try:gotip-darwin-amd64_14,gotip-darwin-arm64_13
Change-Id: Ie8ff20402a1c6083246d25dea391140c75be40d0
Reviewed-on: https://go-review.googlesource.com/c/go/+/618597
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Currently the linker has some code handling and manipulating
Mach-O files. Specifically, it augments the debug/macho package
with file offset and length, so the content can be handled or
updated easily with the file.
Move this code to an internal package, so it can be used by other
part of the toolchain, e.g. buildid computation.
For #68678.
Cq-Include-Trybots: luci.golang.try:gotip-darwin-amd64_14,gotip-darwin-arm64_13
Change-Id: I2311af0a06441b7fd887ca5c6ed9e6fc44670a16
Reviewed-on: https://go-review.googlesource.com/c/go/+/618596
Reviewed-by: Than McIntosh <thanm@golang.org>
Reviewed-by: Dmitri Shuralyov <dmitshur@google.com>
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Currently, on Mach-O, the Go linker doesn't generate LC_UUID in
internal linking mode. This causes some macOS system tools unable
to track the binary, as well as in some cases the binary unable
to access local network on macOS 15.
This CL makes the linker start generate LC_UUID. Currently, the
UUID is generated if the -B flag is specified. And we'll make it
generate UUID by default in a later CL. The -B flag is currently
for generating GNU build ID on ELF, which is a similar concept to
Mach-O's UUID. Instead of introducing another flag, we just use
the same flag and the same setting. Specifically, "-B gobuildid"
will generate a UUID based on the Go build ID.
For #68678.
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Change-Id: I90089a78ba144110bf06c1c6836daf2d737ff10a
Reviewed-on: https://go-review.googlesource.com/c/go/+/618595
Reviewed-by: Michael Knyszek <mknyszek@google.com>
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Reviewed-by: Than McIntosh <thanm@golang.org>
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Last CL we separated mallocgc into several specialized paths. Let's
split up heapSetType too. This will make the specialized heapSetType
functions inlineable and cut out some branches as well as a function
call.
Microbenchmark results at this point in the stack:
│ before.out │ after-5.out │
│ sec/op │ sec/op vs base │
Malloc8-4 13.52n ± 3% 12.15n ± 2% -10.13% (p=0.002 n=6)
Malloc16-4 21.49n ± 2% 18.32n ± 4% -14.75% (p=0.002 n=6)
MallocTypeInfo8-4 27.12n ± 1% 18.64n ± 2% -31.30% (p=0.002 n=6)
MallocTypeInfo16-4 28.71n ± 3% 21.63n ± 5% -24.65% (p=0.002 n=6)
geomean 21.81n 17.31n -20.64%
Change-Id: I5de9ac5089b9eb49bf563af2a74e6dc564420e05
Reviewed-on: https://go-review.googlesource.com/c/go/+/614795
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Extendible hashing splits a swisstable map into many swisstables. This
keeps grow operations small.
For #54766.
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Change-Id: Id91f34af9e686bf35eb8882ee479956ece89e821
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This allows PCALIGN to be used in the end-to-end assembly
tests without causing an error due to missing file position.
Change-Id: Iadea2875854ffd544a963acd21293dc9840da2d0
Reviewed-on: https://go-review.googlesource.com/c/go/+/620635
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This worsens debugging, but improves performance.
Change-Id: I7f3c0d174823b3de412478f9537adc61ae4c076e
Reviewed-on: https://go-review.googlesource.com/c/go/+/620219
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Use the new SwissTable-based map in internal/runtime/maps as the basis
for the runtime map when GOEXPERIMENT=swissmap.
Integration is complete enough to pass all.bash. Notable missing
features:
* Race integration / concurrent write detection
* Stack-allocated maps
* Specialized "fast" map variants
* Indirect key / elem
For #54766.
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Change-Id: Ie97b656b6d8e05c0403311ae08fef9f51756a639
Reviewed-on: https://go-review.googlesource.com/c/go/+/594596
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Change-Id: Id22ad7c92c54bc61f1f1d5544f17208f2f8648aa
GitHub-Last-Rev: 61eee331dc
GitHub-Pull-Request: golang/go#69866
Reviewed-on: https://go-review.googlesource.com/c/go/+/619836
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This allows for more efficient use of memory.
Change-Id: I16f399a25c23b804e55289ca055fa83ea9862f16
GitHub-Last-Rev: 19bb96a7cf
GitHub-Pull-Request: golang/go#69841
Reviewed-on: https://go-review.googlesource.com/c/go/+/618960
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The PR is to add more details for the error, so that it would be easier to troubleshoot the cyclic imports error.
The change for the error looks like the following:
package cyclic-import-example
imports cyclic-import-example/packageA from /Users/personal/cyclic-import-example/main.go:4:5
imports cyclic-import-example/packageB from /Users/personal/cyclic-import-example/packageA/a.go:5:2
imports cyclic-import-example/packageA from /Users/personal/cyclic-import-example/packageB/bb.go:5:2: import cycle not allowed
Fixes#66078
Change-Id: I162cd348004bf4e4774b195f8355151c1bf0a652
GitHub-Last-Rev: c5a16256d1
GitHub-Pull-Request: golang/go#68337
Reviewed-on: https://go-review.googlesource.com/c/go/+/597035
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This is similar to CL 478196 and CL 477296,
but this is for -buildmode=shared.
When using "go install -buildmode=shared std",
because the gold linker is used by default on Linux arm64,
it will cause temporary paths to be included in libstd.so.
Based on the changes of CL 478196,
I speculate that this may also have issues on other platforms.
So, this change is for all platform.
Fixes#69464
Change-Id: I4493c82be030186e61aef597ea0e6f43bcf95a32
GitHub-Last-Rev: ee40cf81ac
GitHub-Pull-Request: golang/go#69394
Reviewed-on: https://go-review.googlesource.com/c/go/+/612396
Reviewed-by: Michael Matloob <matloob@golang.org>
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The expand-calls pass assumed that tail calls were always done in the
entry block. That used to be true, but with tail calls in wrappers
(enabled by CL 578235) and libfuzzer instrumentation, that is no
longer the case. Libfuzzer instrumentation adds an IF statement to the
start of the wrapper function.
Fixes#69825
Change-Id: I9ab7133691d8235f9df128be39bff154b0b8853b
Reviewed-on: https://go-review.googlesource.com/c/go/+/619075
Reviewed-by: Cuong Manh Le <cuong.manhle.vn@gmail.com>
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This causes programs that use 'go' as a subprocess to use the same go
command as the parent 'go run' command.
Fixes#68005
Change-Id: I937cef474bf038a925bb74fc73e5f377b03e27b7
GitHub-Last-Rev: 9986537cad
GitHub-Pull-Request: golang/go#68040
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Change-Id: I9d39984b6b15d415189592b592de471f50b43d0b
Reviewed-on: https://go-review.googlesource.com/c/go/+/618495
Reviewed-by: Michael Matloob <matloob@golang.org>
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This is minor extension of the existing support for 32 and
64 bit types.
For #69735
Change-Id: I6828ec223951d2b692e077dc507b000ac23c32a1
Reviewed-on: https://go-review.googlesource.com/c/go/+/617496
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Reviewed-by: Keith Randall <khr@golang.org>
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If the expression type is a single compile-time known type, use that
type instead of the dynamic one, so the later passes of the compiler
could skip un-necessary runtime calls.
Thanks Youlin Feng for writing the original test case.
Change-Id: I3f65ab90f041474a9731338a82136c1d394c1773
Reviewed-on: https://go-review.googlesource.com/c/go/+/616975
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Simplify the code and remove some unnecessary helper functions.
Change-Id: I1419ca3a0c7048891bbdc274f53fd72960410651
GitHub-Last-Rev: 06b1f03bb3
GitHub-Pull-Request: golang/go#68732
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This change replaces the MD5 hash used to identify coverage files with a
128-bit FNV-1a hash. This change is motivated by the fact that MD5
should only be used for legacy cryptographic purposes.
The 128-bit FNV-1a hash is sufficient for the purpose of identifying
coverage files, it having the same theoretical collision resistance as
MD5, but with the added benefit of being faster to compute.
Change-Id: I7b547ce2ea784f8f4071599a10fcb512b87ee469
Reviewed-on: https://go-review.googlesource.com/c/go/+/617360
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normally this would not run on darwin anyway, but if there
happens to be a "pkg-config" binary, then it will. Darwin's
clang/linker does not have this flag.
Change-Id: I61929cf193c95b420441187beb8b237fa1037807
Reviewed-on: https://go-review.googlesource.com/c/go/+/616376
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Fixes#69176
Change-Id: I2e3b2a7cf7699697b957fc69ecf5200ebb137bc3
Reviewed-on: https://go-review.googlesource.com/c/go/+/609975
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During type inference, when comparing type parameters against their
constraints, if a type argument is completely known it must implement
its constraint. In this case, always unify the type argument's methods
against the constraint methods, if any.
Before this CL, this step was only attempted if the constraint had no
core type. That left information unused which led to type inference
failures where it should have succeeded.
Fixes#66751.
Change-Id: I71e96b71258624212186cf17ec47e67a589817b9
Reviewed-on: https://go-review.googlesource.com/c/go/+/617896
Reviewed-by: Tim King <taking@google.com>
Reviewed-by: Robert Griesemer <gri@google.com>
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To support analyzing type inference failures.
Change-Id: I47882f6b634d5fcf1834923ec372313323d31a9d
Reviewed-on: https://go-review.googlesource.com/c/go/+/617895
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Fixes#68283
Change-Id: I63bd128bd10565ce16a13b5a60d813368db26f26
Reviewed-on: https://go-review.googlesource.com/c/go/+/616339
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Ensure that inner composite literals get a (possibly invalid) type
if something goes wrong with the enclosing composite literal.
Fixes#69092.
Change-Id: Ib1d2d529c4683ea3ab1799a818b43538e152ae8e
Reviewed-on: https://go-review.googlesource.com/c/go/+/616616
Auto-Submit: Robert Griesemer <gri@google.com>
Reviewed-by: Robert Griesemer <gri@google.com>
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For #68578
Change-Id: Ia9580579bfc4709945bfcf6ec3803d5d11812187
Reviewed-on: https://go-review.googlesource.com/c/go/+/606901
Reviewed-by: Mauri de Souza Meneguzzo <mauri870@gmail.com>
Reviewed-by: Keith Randall <khr@golang.org>
Reviewed-by: Keith Randall <khr@google.com>
Reviewed-by: Martin Möhrmann <moehrmann@google.com>
Auto-Submit: Rhys Hiltner <rhys.hiltner@gmail.com>
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It's still pretty cryptic, but at least now instead of printing
asm: asmidx: bad address 0/2067/2068
it will print
asm: asmidx: bad address 0/BX/SP
Change-Id: I1c73c439c94c5b9d3039728db85102a818739db9
Reviewed-on: https://go-review.googlesource.com/c/go/+/611256
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Update the package docs:
* The -srcdir docs were accidentally lost in CL 68590.
* The -trimpath option was added in CL 266358 but not documented.
* The options were not sorted correctly.
Fixes#69730
Change-Id: I97320e0f4fb6aa47cb03d451f028d3d9d9b560f7
Reviewed-on: https://go-review.googlesource.com/c/go/+/616699
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Added a section about errno values vs normal go
error value semantics, and checking the return
value of C functions for error before looking at
errno.
Fixes#63485
Change-Id: Id0132a9f11e4127f4adc14e010b7e17f57a0f7d3
Reviewed-on: https://go-review.googlesource.com/c/go/+/616264
Reviewed-by: Michael Knyszek <mknyszek@google.com>
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This change adds a new environment variable GOAUTH which takes a semicolon-separated list of commands to run for authentication during go-import resolution and HTTPS module mirror protocol interactions.
This CL only supports netrc and off. Future CLs to follow will extend support to git and a custom authenticator command.
For #26232
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This CL adds a local only VCS lookup for Mercurial.
It fixes a bug in pkg.go by passing in the repo directory to
the LookupLocal function instead of the module directory. It could be
the case that a binary is built in a subdirectory of the repo.
For: #50603
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In go/types, move field down in environment struct, rename it to
exprPos, and document use.
Updates #69673.
Change-Id: I355af1237f8cd731ad9706e6a5fce34b314978cc
Reviewed-on: https://go-review.googlesource.com/c/go/+/616316
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Remove them them from types2.
Updates #69673.
Change-Id: I7843f6da1edf3a19f85c61706104d173e04088d3
Reviewed-on: https://go-review.googlesource.com/c/go/+/616261
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There were a few Mercurial command line uses that could cause the wrong
data to be used:
* The log command needs '-r.' to specify the currently checked out commit
* HGPLAIN is needed to disable optional output on commands
* '-S' is needed to for the 'status' command to recurse into any subrepos
The most likely issue to be seen here was the use of '-l1' instead of
'-r.', which prints the most recent commit instead of the current checkout.
Since tagging in Mercurial creates a new commit, this basically means the
data was wrong for every tagged build.
This also adds an hgrc config file to the test, with config options to
keep the time and author values fixed. It's what's used in the Mercurial
test harness to keep the commit hashes stable, and allows the tests here to
also match the time and the revision ID, to prevent regressing.
Fixes#63532
Change-Id: I5b9971ce87c83431ec77e4a002bdc33fcf393856
GitHub-Last-Rev: 62c9db0a28
GitHub-Pull-Request: golang/go#63557
Reviewed-on: https://go-review.googlesource.com/c/go/+/535377
Reviewed-by: Bryan Mills <bcmills@google.com>
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This moves the implementation of Scope.LookupParent into
environment.lookupScope where it encapsulates the use of
the current environment's position. At least in types2,
that position can be removed, because it is never set.
With this, the type checker doesn't rely on position
information anymore for looking up objects during type
checking.
LookupParent is still called from tests and some go/types
code.
Updates #69673.
Change-Id: I7159ba95b71cf33cc3b16058aa19327e166224b1
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A step towards removing reliance on Scope.LookupParent.
Updates #69673.
Change-Id: I9fdd4b08ea600b531b90895ac779fdc580ff00e5
Reviewed-on: https://go-review.googlesource.com/c/go/+/616259
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In extremely rare cases of receiver base types of the form
C.foo where C refers to an `import "C"`, we needed Scope.Contains
to lookup the file scope containing the "C" import.
Replace the position-dependent Scope.Contains with an explicit
scope search that doesn't require a position.
Also, make the surrounding code match more closely between
go/types and types2.
Change-Id: Ic007108928dd8b382a06e2bbf09ef8bd6bd0ff36
Reviewed-on: https://go-review.googlesource.com/c/go/+/616256
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We rename it to iIIEncoding to reflect the fact that instructions
that use this encoding take two integer registers. This change
will allow us to add a new encoding for I-type instructions that
take a single integer register. This new encoding will be used for
instructions that modify CSRs.
Change-Id: Ic507d0020e18f6aa72353f4d3ffcd0e868261e7a
Reviewed-on: https://go-review.googlesource.com/c/go/+/614355
Reviewed-by: Carlos Amedee <carlos@golang.org>
Reviewed-by: Joel Sing <joel@sing.id.au>
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When using the -x or -n option, we were printing the external
linker error messages from producing the dynimport file.
This was confusing because those linker errors are unimportant and
ignored; only the linker exit status matters, and failure doesn't
drop the build.
Change cmd/go -x to not print the error messages, and to instead
print the linker command line with a notation of whether the
link succeeded or failed.
Fixes#68743
Change-Id: Ie3cc58d2d6a7d33d7baa6f1273b4fb5a7deee7e5
Reviewed-on: https://go-review.googlesource.com/c/go/+/615916
Reviewed-by: Michael Matloob <matloob@golang.org>
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Reviewed-by: Ian Lance Taylor <iant@google.com>
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Change-Id: I56b40a9d2ff85fdbc0d170aec686f1868176e068
GitHub-Last-Rev: 9424faf0f8
GitHub-Pull-Request: golang/go#69578
Reviewed-on: https://go-review.googlesource.com/c/go/+/614556
Auto-Submit: Ian Lance Taylor <iant@google.com>
Reviewed-by: Zxilly Chou <zxilly@outlook.com>
Reviewed-by: Ian Lance Taylor <iant@google.com>
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Reviewed-by: David Chase <drchase@google.com>
Change-Id: Ifbd33881280d88c00df9b2c4e20f0127aca55799
GitHub-Last-Rev: 5b42bc612c
GitHub-Pull-Request: golang/go#69336
Reviewed-on: https://go-review.googlesource.com/c/go/+/610563
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Reviewed-by: Ian Lance Taylor <iant@google.com>
Previously, the Checker.allowVersion method would use a token.Pos
to try to infer which file of the current package the checker
was "in". This proved fragile when type-checking syntax that
had been modified or synthesized and whose positions were invalid.
This change records the effective version in the checker state
(checker.environment.version). Just like other aspects of the
environment, the version changes from one file to the next
and must be saved and restored with each check.later closure.
Similarly, declInfo captures and temporarily reinstates
the effective version when checking each object.
+ Test of position independence in go/types and types2
+ Test of panic avoidance in go/types
Fixesgolang/go#69477Fixesgolang/go#69338
Change-Id: Ic06f9d88151c64a4f7848f8942d08e3c312cdd6f
Reviewed-on: https://go-review.googlesource.com/c/go/+/613735
Reviewed-by: Robert Griesemer <gri@google.com>
Auto-Submit: Alan Donovan <adonovan@google.com>
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The SSA backend currently only handle struct with up to 4 fields. Thus,
there are different operations corresponding to number fields of the
struct.
This CL generalizes these with just one OpStructMake, allow struct types
with arbitrary number of fields.
However, the ssa.MaxStruct is still kept as-is, and future CL will
increase this value to optimize large structs.
Updates #24416
Change-Id: I192ffbea881186693584476b5639394e79be45c5
Reviewed-on: https://go-review.googlesource.com/c/go/+/611075
Reviewed-by: Keith Randall <khr@golang.org>
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Reviewed-by: Keith Randall <khr@google.com>
Auto-Submit: Cuong Manh Le <cuong.manhle.vn@gmail.com>
Reviewed-by: David Chase <drchase@google.com>
The go1.24 release notes say that go1.22.6 is the
minimum bootstraps required,
the go team also use go1.22.6 bootstraps in testing,
so if there's a problem with using an older version,
automated testing won't uncover it.
Now enforce this in dist to avoid
release notes that do not match reality, which can be confusing.
For #64751
Change-Id: Icd2f8a47b2bbb2d7c3dab9be9a228f43b9630063
GitHub-Last-Rev: 425cd7f03c
GitHub-Pull-Request: golang/go#69168
Reviewed-on: https://go-review.googlesource.com/c/go/+/609762
Reviewed-by: David Chase <drchase@google.com>
Reviewed-by: Dmitri Shuralyov <dmitshur@golang.org>
Auto-Submit: Dmitri Shuralyov <dmitshur@golang.org>
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Reviewed-by: Dmitri Shuralyov <dmitshur@google.com>
(I noticed the one mistake in hashtriemap.go and figured I'd clean up
others.)
Change-Id: I4ade424b400056f161bc6c9c2838ba1f96b1f6bb
Reviewed-on: https://go-review.googlesource.com/c/go/+/615675
Auto-Submit: Brad Fitzpatrick <bradfitz@golang.org>
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Reviewed-by: Ian Lance Taylor <iant@google.com>
Reviewed-by: Dmitri Shuralyov <dmitshur@google.com>
For #66832
Cq-Include-Trybots: luci.golang.try:gotip-linux-amd64-longtest,gotip-windows-amd64-longtest
Change-Id: I58e20fe0b8e38dd9383d1df334acaa3a2abad756
Reviewed-on: https://go-review.googlesource.com/c/go/+/607237
Reviewed-by: Michael Matloob <matloob@golang.org>
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The function is only used by Checker.compositeLit.
Also, now its go/types source can be gerated from the types2 source.
No other code changes.
Change-Id: I88b7ad371d809a5d9bf8e635d9e003ba0a71ab78
Reviewed-on: https://go-review.googlesource.com/c/go/+/615635
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Auto-Submit: Robert Griesemer <gri@google.com>
Remove remaining underIs methods and call underIs function instead.
Change-Id: Ic98430d3a56b85f6f4b35c4508c4c67dafbfa3f2
Reviewed-on: https://go-review.googlesource.com/c/go/+/614240
Reviewed-by: Tim King <taking@google.com>
Reviewed-by: Robert Griesemer <gri@google.com>
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Auto-Submit: Robert Griesemer <gri@google.com>
Change-Id: I50a19bd971176598bf8e4ef86ec98f008abe245c
Reviewed-on: https://go-review.googlesource.com/c/go/+/615198
Reviewed-by: David Chase <drchase@google.com>
Reviewed-by: Cuong Manh Le <cuong.manhle.vn@gmail.com>
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Auto-Submit: Keith Randall <khr@google.com>
Reviewed-by: Keith Randall <khr@google.com>
Change-Id: I097b53e9f13de6ff6eb18ae2261842b097f26390
Reviewed-on: https://go-review.googlesource.com/c/go/+/615197
Auto-Submit: Keith Randall <khr@google.com>
Reviewed-by: Keith Randall <khr@google.com>
Reviewed-by: Cuong Manh Le <cuong.manhle.vn@gmail.com>
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Reviewed-by: David Chase <drchase@google.com>
They are already methods on an arm64-specific type, so they don't
need to have arm64-specific names.
Change-Id: I2be29907f9892891d88d52cced043ca248aa4e08
Reviewed-on: https://go-review.googlesource.com/c/go/+/615196
Auto-Submit: Keith Randall <khr@google.com>
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Reviewed-by: David Chase <drchase@google.com>
Reviewed-by: Cuong Manh Le <cuong.manhle.vn@gmail.com>
Reviewed-by: Keith Randall <khr@google.com>
Preparation for removing the existing non-standard iterators
(is, underIs). Note that we cannot use typeset iterators in
range-over-func because the bootstrap compiler doesn't have
access to it yet.
While at it, move underIs from expr.go to under.go
and adjust some doc strings in typset.go to match
prevailing style in that file.
Change-Id: Iecd014eeb5b3fca56a807381c148c5f7a29bfb78
Reviewed-on: https://go-review.googlesource.com/c/go/+/614239
Reviewed-by: Tim King <taking@google.com>
Auto-Submit: Robert Griesemer <gri@google.com>
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Reviewed-by: Robert Griesemer <gri@google.com>
Commit-Queue: Robert Griesemer <gri@google.com>
Fixes#69576.
Change-Id: I8fc077970276977dd89fc2dd3867f2765d52e54e
Reviewed-on: https://go-review.googlesource.com/c/go/+/615275
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Reviewed-by: Tim King <taking@google.com>
Reviewed-by: Robert Findley <rfindley@google.com>
Auto-Submit: Robert Griesemer <gri@google.com>
Running `go get -tool example.com/m1` will add a tool line to your mod
file and add any missing dependencies.
Running `go get -tool example.com/m1@none` will drop the tool line from
your mod file.
For golang/go#48429
Change-Id: I07b4776f1f55eff588d08cb6649d94cc42a729d2
Reviewed-on: https://go-review.googlesource.com/c/go/+/563175
Reviewed-by: Michael Matloob <matloob@golang.org>
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Reviewed-by: Sam Thanawalla <samthanawalla@google.com>
Restate deferred call for readability.
Change-Id: I3725535b18fa4f1887e6c1976f8784e092b8f965
Reviewed-on: https://go-review.googlesource.com/c/go/+/615535
Auto-Submit: Robert Griesemer <gri@google.com>
Reviewed-by: Tim King <taking@google.com>
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Reviewed-by: Robert Griesemer <gri@google.com>
Packages referenced by tool lines in go.mod files will now be included
in the module graph for the new "tool" package pattern and the "all"
package pattern.
For golang/go#48429
Change-Id: I128f6a50880814bd5395674426c9a7ee2ddc19bf
Reviewed-on: https://go-review.googlesource.com/c/go/+/521959
Reviewed-by: Carlos Amedee <carlos@golang.org>
Reviewed-by: Michael Matloob <matloob@golang.org>
LUCI-TryBot-Result: Go LUCI <golang-scoped@luci-project-accounts.iam.gserviceaccount.com>
Like for Named types, print type parameters for Alias types.
Add test case for Alias object string to existing test.
To make the test work, factor out the mechanism to set
GOEXPERIMENT=aliastypeparams at test time and use it
for this test as well.
No test case for un-instantiated generic type Alias type
string: there's no existing test framework, the code is
identical as for Named types, and these strings only appear
in tracing output. Tested manually.
Change-Id: I476d04d0b6a7c18b79be1d34a9e3e072941df83f
Reviewed-on: https://go-review.googlesource.com/c/go/+/615195
Auto-Submit: Robert Griesemer <gri@google.com>
Reviewed-by: Robert Griesemer <gri@google.com>
Reviewed-by: Tim King <taking@google.com>
LUCI-TryBot-Result: Go LUCI <golang-scoped@luci-project-accounts.iam.gserviceaccount.com>
Since we added a local context to git lookups, we need to be more
careful about fetching from remote.
We should not fetch when we are stamping a binary because that could
slow down builds.
For #50603
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Change-Id: I81a719b7609e8d30b32ffb3c12a05074c5fd0c22
Reviewed-on: https://go-review.googlesource.com/c/go/+/611916
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Reviewed-by: Michael Matloob <matloob@golang.org>
Change-Id: I85993a34b115a700ccdfea29df4e78c360e68b03
Reviewed-on: https://go-review.googlesource.com/c/go/+/615075
Reviewed-by: Keith Randall <khr@google.com>
Reviewed-by: Keith Randall <khr@golang.org>
Auto-Submit: Keith Randall <khr@golang.org>
Reviewed-by: Robert Griesemer <gri@google.com>
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The Frames function is almost an iter.Seq, except for its bool return
value.
Since none of the callers in the Go tree rely on the bool, we can remove
it. However, doing so might still obscure the intended usage as an iterator.
This refactor changes the API to return iter.Seq, making the intended
usage explicit. Refactoring the existing callers to take advantage of
the new interface will be done in a follow-up CL.
Change-Id: I03e4d6d762910e418cc37d59a6c519eb7f39b3b0
Reviewed-on: https://go-review.googlesource.com/c/go/+/608855
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Reviewed-by: Michael Knyszek <mknyszek@google.com>
TestScript is very slow on Plan 9 because this test
is particularly i/o intensive.
This is leading the plan9/386 and plan9/amd64 builders
to time out. This test was already skipped on plan9/arm
because arm is part of the "slow architectures" list.
This change skips TestScript on Plan 9 on short mode.
Change-Id: I3e68046dac825cd14fa8daca601c492cf11c6fff
Reviewed-on: https://go-review.googlesource.com/c/go/+/614855
Reviewed-by: Ian Lance Taylor <iant@google.com>
Reviewed-by: Dmitri Shuralyov <dmitshur@google.com>
Run-TryBot: David du Colombier <0intro@gmail.com>
Reviewed-by: Dmitri Shuralyov <dmitshur@golang.org>
TryBot-Bypass: Ian Lance Taylor <iant@golang.org>
Allowing relative paths in `go.mod` introduced an inconsistency as we do
not allow relative package paths anywhere else.
For golang/go#48429
Change-Id: I5ef88aec4fe35f7e94a0cf6288e94099f3ca7a0e
Reviewed-on: https://go-review.googlesource.com/c/go/+/614555
Reviewed-by: Sam Thanawalla <samthanawalla@google.com>
Reviewed-by: Michael Matloob <matloob@golang.org>
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This CL provides vendor support for loong64 disassembler gnu and plan9 syntax.
cd $GOROOT/src/cmd
go get golang.org/x/arch@master
go mod tidy
go mod vendor
Change-Id: Ic8b888de0aa11cba58cbf559f8f69337d1d69309
Reviewed-on: https://go-review.googlesource.com/c/go/+/609015
Reviewed-by: Meidan Li <limeidan@loongson.cn>
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Reviewed-by: sophie zhao <zhaoxiaolin@loongson.cn>
This CL introduces the ability to print information about the toolchain switch used in the
go command, controlled by the `toolchaintrace` setting. This setting defaults to `toolchaintrace=0`,
meaning no information is printed. Setting it to `toolchaintrace=1` will cause the go command
to print a message indicating the toolchain used and where it was found.
Fixes: #63939
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Change-Id: Idc58e3d5bc76573aa48e1f7df352caa13004c25e
Reviewed-on: https://go-review.googlesource.com/c/go/+/610235
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CL 584596 "-range<N>" suffix to the name of closure generated for a
rangefunc loop body. However, this breaks the condition that escape
analysis uses for checking whether a closure contains within function,
which is "F.funcN" for outer function "F" and closure "funcN".
Fixing this by adding new "-rangeN" to the condition.
Fixes#69434Fixes#69507
Change-Id: I411de8f63b69a6514a9e9504d49d62e00ce4115d
Reviewed-on: https://go-review.googlesource.com/c/go/+/614096
Reviewed-by: David Chase <drchase@google.com>
Reviewed-by: Cherry Mui <cherryyz@google.com>
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M6 field for all extended mnemonics of VSTRC set to zero
This fixes VSTRC codegen to emit correctly and added testcases for all
the extended mnemonics.
Fixes#69216
Change-Id: I2a1b7fb61d6bd6444286eab56a506225c90b75e7
Reviewed-on: https://go-review.googlesource.com/c/go/+/612315
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Reviewed-by: Vishwanatha HD <vishwanatha.hd@ibm.com>
Reviewed-by: Carlos Amedee <carlos@golang.org>
Change-Id: Ie3f35183e88d544559743394c34b55483fdf59aa
Reviewed-on: https://go-review.googlesource.com/c/go/+/613775
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Auto-Submit: Tobias Klauser <tobias.klauser@gmail.com>
Reviewed-by: Carlos Amedee <carlos@golang.org>
Auto-Submit: Ian Lance Taylor <iant@google.com>
Reword the paragraph to focus on modules rather than GOPATH mode.
Change-Id: Ide33d502311b3539018f167386a92a94ff955f1f
Reviewed-on: https://go-review.googlesource.com/c/go/+/613555
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The auxiliary field could be better documented as it appears in a lot of the operands.
This CL documents and points the user to the code for further information.
Change-Id: I34a73af488358c9799e286f3b5ee4b08639ce608
Reviewed-on: https://go-review.googlesource.com/c/go/+/613615
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Moving these intrinsics to a base package enables other internal/runtime
packages to use them.
There is no immediate need for getclosureptr outside of runtime, but it
is moved for consistency with the other intrinsics.
For #54766.
Change-Id: Ia68b16a938c8cb84cb222469db28e3a83861be5d
Reviewed-on: https://go-review.googlesource.com/c/go/+/613262
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Moving these intrinsics to a base package enables other internal/runtime
packages to use them.
For #54766.
Change-Id: I45a530422207dd94b5ad4eee51216c9410a84040
Reviewed-on: https://go-review.googlesource.com/c/go/+/613261
Reviewed-by: Cherry Mui <cherryyz@google.com>
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Moving these intrinsics to a base package enables other internal/runtime
packages to use them.
For #54766.
Change-Id: I0b3eded3bb45af53e3eb5bab93e3792e6a8beb46
Reviewed-on: https://go-review.googlesource.com/c/go/+/613260
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Compute the signature type of an iterator function argument
only once. This eliminates the need for two separate toSig
calls.
Change-Id: Ifeb33d21e381010d2012d74eac045856f1cca312
Reviewed-on: https://go-review.googlesource.com/c/go/+/613635
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Reviewed-by: Tim King <taking@google.com>
Nothing ever creates this op, so it can be safely removed. Note that SSA
still intrinsifies runtime.getcallerpc.
The similar ir.OGETCALLERSP is still used for defer handling in
typecheck/func.go:tcRecover.
For #54766.
Change-Id: I6bdb2072af2c068080ae977c0cbd4684d0c7c752
Reviewed-on: https://go-review.googlesource.com/c/go/+/613496
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Auto-Submit: Michael Pratt <mpratt@google.com>
The compiler never does a lookup of these (LookupRuntime), so they
aren't needed here.
getcallerpc is only used in intrinsification. getcallersp is used in
intrinsification and defer handling via a direct OGETCALLERSP op.
For #54766.
Change-Id: I1666ceef3360a84573ae5b41b1c51d9205de7235
Reviewed-on: https://go-review.googlesource.com/c/go/+/613495
Reviewed-by: Robert Griesemer <gri@google.com>
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As https://go.dev/doc/comment#package says, every package
should have a package comment. Command cmd/preprofile had
one, it was just not being recognized due to a blank line.
For #51430.
For #58102.
Change-Id: I73e31158e0f244f6453728ab68c5c8da4cfb38b1
Reviewed-on: https://go-review.googlesource.com/c/go/+/613375
Reviewed-by: Michael Pratt <mpratt@google.com>
Auto-Submit: Dmitri Shuralyov <dmitshur@golang.org>
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Fixes#20027
Change-Id: Ia616d43c0affa7b927ddfb53755072c94ba27917
Reviewed-on: https://go-review.googlesource.com/c/go/+/612618
Reviewed-by: Keith Randall <khr@golang.org>
Reviewed-by: Keith Randall <khr@google.com>
Auto-Submit: Cuong Manh Le <cuong.manhle.vn@gmail.com>
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Reviewed-by: Tim King <taking@google.com>
Change-Id: I8a38b4c71c34d3544ee32be9c6e767bb1099a720
GitHub-Last-Rev: ff4cb4e91b
GitHub-Pull-Request: golang/go#69424
Reviewed-on: https://go-review.googlesource.com/c/go/+/612735
Reviewed-by: Keith Randall <khr@golang.org>
Commit-Queue: Ian Lance Taylor <iant@google.com>
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Reviewed-by: Keith Randall <khr@google.com>
Reviewed-by: Michael Matloob <matloob@golang.org>
Before this change, test binaries didn't have build info populated on them
unless they were tests for package main. Now we generate them for all
test binaries so that they can be inspected like other binaries.
We don't need to add the default GODEBUG in printLinkerConfig because it
will now always be present on the build info, and when build info is
present we use it to generate the hash.
Fixes#33976
Change-Id: Ib4f51c04f87df3c7f2f21c400ab446e70d66a101
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Change-Id: Ib437e272e0eb7d1b0969a4ed94d264ca3aad7c59
Reviewed-on: https://go-review.googlesource.com/c/go/+/612696
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Auto-Submit: Tim King <taking@google.com>
Auto-Submit: Tobias Klauser <tobias.klauser@gmail.com>
Reviewed-by: Ian Lance Taylor <iant@google.com>
Reviewed-by: Tim King <taking@google.com>
Change-Id: I0a5ce4d50d65b803b001d01d627e8e6d2af66d6e
Reviewed-on: https://go-review.googlesource.com/c/go/+/611335
TryBot-Bypass: Robert Griesemer <gri@google.com>
Reviewed-by: Cuong Manh Le <cuong.manhle.vn@gmail.com>
Reviewed-by: Robert Griesemer <gri@google.com>
Reviewed-by: Tim King <taking@google.com>
Auto-Submit: Robert Griesemer <gri@google.com>
The ANDN, ORN and XNOR RISC-V Zbb extension instructions are easily
synthesised. Make them always available by adding support to the
riscv64 assembler so that we either emit two instruction sequences,
or a single instruction, when permitted by the GORISCV64 profile.
This means that these instructions can be used unconditionally,
simplifying compiler rewrite rules, codegen tests and manually
written assembly.
Around 180 instructions are removed from the Go binary on riscv64
when built with rva22u64.
Change-Id: Ib2d90f2593a306530dc0ed08a981acde4d01be20
Reviewed-on: https://go-review.googlesource.com/c/go/+/611895
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Reviewed-by: Dmitri Shuralyov <dmitshur@google.com>
Previously we expected the default GODEBUG that's embedded in the binary
to be taken into account for build actionIDs through the build info. The
build info contains the default GODEBUG for a package main, and then
that build info is used to generate the action id. But tests of packages
other than main do not have buildinfo set on them. So the default
GODEBUG isn't taken into account in the action id for those tests.
Explicitly include GODEBUG when generating all link actions' action ids
to make sure it's always present.
Fixes#69203
Change-Id: Ifbc58482454ecfb51ba09cfcff02972cac3270c1
Cq-Include-Trybots: luci.golang.try:gotip-linux-amd64-longtest,gotip-windows-amd64-longtest
Reviewed-on: https://go-review.googlesource.com/c/go/+/610875
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Compiler's version will not work well if gcc output have
different language. Like 'gcc -v', it may not output:
'gcc version xx.xx.x'
Fixes#69221
Change-Id: I4adcea79dfaaf5853dfb6e718468f8530c67da6a
GitHub-Last-Rev: 069787c083
GitHub-Pull-Request: golang/go#69223
Reviewed-on: https://go-review.googlesource.com/c/go/+/610215
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Reviewed-by: Michael Matloob <matloob@golang.org>
types2 handles all constant-related bounds checks in user Go code now,
so it's safe to remove the constants check from these functions.
Change-Id: I4e3fb5d22f9bbc95878c7df2ee3b0eb1819f8dd7
Reviewed-on: https://go-review.googlesource.com/c/go/+/611677
Auto-Submit: Cuong Manh Le <cuong.manhle.vn@gmail.com>
Reviewed-by: Tim King <taking@google.com>
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Reviewed-by: Keith Randall <khr@golang.org>
Reviewed-by: Keith Randall <khr@google.com>
types2 handles all constant-related bounds checks in user Go code now,
so it's safe to remove all constants checking in tcSlice function.
Change-Id: Ia0dd4928d7122a6f62df10436bb4a3675ebf3357
Reviewed-on: https://go-review.googlesource.com/c/go/+/611676
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Reviewed-by: Keith Randall <khr@google.com>
Auto-Submit: Cuong Manh Le <cuong.manhle.vn@gmail.com>
Reviewed-by: Tim King <taking@google.com>
The function resultsToWasmFields was originally for only
wasmimport. I adopted it for wasmexport as well, but forgot to
update a few places that were wasmimport-specific. This leads to
compiler panic if an invalid result type is passed, and also
unsafe.Pointer not actually supported. This CL fixes it.
Updates #65199.
Change-Id: I9bbd7154b70422504994840ff541c39ee596ee8f
Reviewed-on: https://go-review.googlesource.com/c/go/+/611315
Reviewed-by: Michael Knyszek <mknyszek@google.com>
Reviewed-by: Achille Roussel <achille.roussel@gmail.com>
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types2 handles all constant-related bounds checks in user Go code now,
so it's safe to remove the check in IndexConst function.
Change-Id: I9116493f191c4df1cce7e43c8ac3dc5bf020fd5c
Reviewed-on: https://go-review.googlesource.com/c/go/+/611675
Auto-Submit: Cuong Manh Le <cuong.manhle.vn@gmail.com>
Reviewed-by: Keith Randall <khr@google.com>
Reviewed-by: Tim King <taking@google.com>
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Reviewed-by: Keith Randall <khr@golang.org>
asm_riscv64.h will be used to define macros for each riscv64
extension that is not part of the rva20u64 base profile but that the
_riscv64.s assembly files are allowed to use because the user has
specified a more capable profile in the GORISCV64 variable. This will
allow us, for example, to test for the hasZba macro in those assembly
files instead of the GORISCV64_rva22u64 macro before using a Zba
instruction. This is important as it means that in the future when
we add support for new profiles that support Zba, e.g., rva23u64,
we only need to update asm_riscv64.h to indicate rva23u64 supports
Zba. We will not need to update every assembly language file that
already uses Zba instructions.
Updates #61476
Change-Id: I83abfeb20d08a87ac8ea88f4d8a93437f0631353
Reviewed-on: https://go-review.googlesource.com/c/go/+/608255
Auto-Submit: Tim King <taking@google.com>
Reviewed-by: Tim King <taking@google.com>
Reviewed-by: Dmitri Shuralyov <dmitshur@google.com>
Reviewed-by: Meng Zhuo <mengzhuo1203@gmail.com>
Reviewed-by: Joel Sing <joel@sing.id.au>
LUCI-TryBot-Result: Go LUCI <golang-scoped@luci-project-accounts.iam.gserviceaccount.com>
This field is present during the initial development of generic support
inside compiler, and indicating whether a type is fully instantiated is
the solely purpose at this moment. Further, its name is also confused,
and there have been a TODO to chose a better name for it.
Instead, just using a bit to track whether a type is fully instantiated,
then this rparams field can be removed to simplify the code.
Change-Id: Ia29c6dd5792487c440b83b0f3b77bd60917c2019
Reviewed-on: https://go-review.googlesource.com/c/go/+/611255
Reviewed-by: Tim King <taking@google.com>
LUCI-TryBot-Result: Go LUCI <golang-scoped@luci-project-accounts.iam.gserviceaccount.com>
Reviewed-by: Keith Randall <khr@google.com>
Auto-Submit: Cuong Manh Le <cuong.manhle.vn@gmail.com>
Reviewed-by: Keith Randall <khr@golang.org>
Otherwise "print(nil)" gets an error like
use of untyped nil in argument to built-inprint
Change-Id: Iaa841df106f90787031dce75a49af69860a9dbc9
Reviewed-on: https://go-review.googlesource.com/c/go/+/611918
Commit-Queue: Ian Lance Taylor <iant@google.com>
Reviewed-by: Ian Lance Taylor <iant@google.com>
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Reviewed-by: Robert Griesemer <gri@google.com>
Auto-Submit: Ian Lance Taylor <iant@google.com>
Auto-Submit: Ian Lance Taylor <iant@golang.org>
Now that Go 1.22.6 is the minimum bootstrap toolchain (cf. CL 606156),
the slices package (introduced in Go 1.21) can be used in packages built
using the bootstrap toolchain.
For #64751
Change-Id: Ib36f39016f57c5e110f78a85ca9c806d91356024
Reviewed-on: https://go-review.googlesource.com/c/go/+/612316
Reviewed-by: Dmitri Shuralyov <dmitshur@golang.org>
Reviewed-by: Dmitri Shuralyov <dmitshur@google.com>
Auto-Submit: Tobias Klauser <tobias.klauser@gmail.com>
Reviewed-by: Ian Lance Taylor <iant@google.com>
LUCI-TryBot-Result: Go LUCI <golang-scoped@luci-project-accounts.iam.gserviceaccount.com>
Trivial closures will be converted to global functions, thus they are
not closures anymore. Using fn.IsClosure function is enough, allow
removing the trivial/non-trivial closures in the code.
Change-Id: Iceb186dd92c1732b101e221ebc13406db35c69ea
Reviewed-on: https://go-review.googlesource.com/c/go/+/611995
Reviewed-by: Keith Randall <khr@golang.org>
Reviewed-by: Tim King <taking@google.com>
Auto-Submit: Cuong Manh Le <cuong.manhle.vn@gmail.com>
LUCI-TryBot-Result: Go LUCI <golang-scoped@luci-project-accounts.iam.gserviceaccount.com>
Reviewed-by: Keith Randall <khr@google.com>
This CL optimizes the compilation of string-to-bytes conversion in the
case of string additions.
Fixes#62407
Change-Id: Ic47df758478e5d061880620025c4ec7dbbff8a64
Reviewed-on: https://go-review.googlesource.com/c/go/+/527935
Reviewed-by: Cuong Manh Le <cuong.manhle.vn@gmail.com>
Reviewed-by: Keith Randall <khr@golang.org>
Auto-Submit: Keith Randall <khr@golang.org>
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Reviewed-by: Keith Randall <khr@google.com>
Reviewed-by: Tim King <taking@google.com>
Use OTAILCALL in wrapper if the receiver and method are both pointers and it is
not going to be inlined, similar to how it is done in reflectdata.methodWrapper.
Currently tail call may be used for functions with identical argument types.
This change updates wrappers where both wrapper and the wrapped method's
receiver are pointers. In this case, we have the same signature for the
wrapper and the wrapped method (modulo the receiver's pointed-to types),
and do not need any local variables in the generated wrapper (on stack)
because the arguments are immediately passed to the wrapped method in place
(without need to move some value passed to other register or to change any
argument/return passed through stack). Thus, the wrapper does not need its
own stack frame.
This applies to promoted methods, e.g. when we have some struct type U with
an embedded type *T and construct a wrapper like
func (recv *U) M(arg int) bool { return recv.T.M(i) }
See also test/abi/method_wrapper.go for a running example.
Code size difference measured with this change (tried for x86_64):
etcd binary:
.text section size: 21472251 -> 21432350 (0.2%)
total binary size: 32226640 -> 32191136 (0.1%)
compile binary:
.text section size: 17419073 -> 17413929 (0.03%)
total binary size: 26744743 -> 26737567 (0.03%)
Change-Id: I9bbe730568f6def21a8e61118a6b6f503d98049c
Reviewed-on: https://go-review.googlesource.com/c/go/+/578235
LUCI-TryBot-Result: Go LUCI <golang-scoped@luci-project-accounts.iam.gserviceaccount.com>
Reviewed-by: Cherry Mui <cherryyz@google.com>
Reviewed-by: Dmitri Shuralyov <dmitshur@google.com>
Reviewed-by: Keith Randall <khr@golang.org>
Reviewed-by: Keith Randall <khr@google.com>
The telemetry script test checks for the existence of telemetry data as
a baseline before checking that the act of setting telemtetry to off
while in local mode doesn't produce telemetry data. Of course, when
we're running on platforms where telemetry is not supported, telemetry
data won't be produced on disk either way. Only check for the existence
of telemetry data on supported platforms.
For #69269
Change-Id: I3a06bbc3d3ca0cf0203b84883f632ecfd9445aae
Reviewed-on: https://go-review.googlesource.com/c/go/+/611876
Reviewed-by: Robert Findley <rfindley@google.com>
LUCI-TryBot-Result: Go LUCI <golang-scoped@luci-project-accounts.iam.gserviceaccount.com>
Auto-Submit: Michael Matloob <matloob@golang.org>
There is the expectation that if 'go telemetry off' is run with a clean
home directory that no counter files are written. But we were writing
counters in that case because the act of turning telemetry off was done
after the act of opening the counter files, so the counter files were
opened depending on what the previous mode was. Add a special check that
the command is not 'go telemetry off' before opening counter files.
Fixes#69269
Change-Id: I8fc37dfe24ec7f454676cc2fdd4b79a13a7aba9d
Reviewed-on: https://go-review.googlesource.com/c/go/+/611456
LUCI-TryBot-Result: Go LUCI <golang-scoped@luci-project-accounts.iam.gserviceaccount.com>
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Auto-Submit: Michael Matloob <matloob@golang.org>
This field isn't actually used. The last usage was deleted in CL 518775
and even then it wasn't actually being set.
Change-Id: Ifbe9da9c2a6d81a40c136a60028902176f443588
Reviewed-on: https://go-review.googlesource.com/c/go/+/610255
Reviewed-by: Sam Thanawalla <samthanawalla@google.com>
LUCI-TryBot-Result: Go LUCI <golang-scoped@luci-project-accounts.iam.gserviceaccount.com>
Adds helper functions for the literal pooling, large branch handling
and code emission stages of the span7 assembler pass. This hides the
implementation of the current assembler from the general workflow in
span7 to make the implementation easier to change in future.
Updates #44734
Change-Id: I8859956b23ad4faebeeff6df28051b098ef90fed
Reviewed-on: https://go-review.googlesource.com/c/go/+/595755
Reviewed-by: Cherry Mui <cherryyz@google.com>
Reviewed-by: Dmitri Shuralyov <dmitshur@google.com>
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Change-Id: I3d4c66793afa3769a8450e2d65093a0f9115596e
Reviewed-on: https://go-review.googlesource.com/c/go/+/611043
Auto-Submit: Ian Lance Taylor <iant@google.com>
Reviewed-by: Ian Lance Taylor <iant@google.com>
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Change-Id: I384a7391a26f24402c055aec98b37927305e2a39
Reviewed-on: https://go-review.googlesource.com/c/go/+/611042
Reviewed-by: Ian Lance Taylor <iant@google.com>
Reviewed-by: Dmitri Shuralyov <dmitshur@google.com>
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Change-Id: I09c134fff728d32c5bc475889b8c673cc18120a0
Reviewed-on: https://go-review.googlesource.com/c/go/+/611041
Auto-Submit: Ian Lance Taylor <iant@google.com>
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Function stdlibImportcfgFile creates a temporary directory and a file in
it, which are never deleted.
The easiest to fix this (without creating the file unnecessarily, or
creating it multiple times) is to add a global tmpDir and use it in
stdlibImportcfgFile.
Change-Id: Ia971b4478d9e0fa7c3a9b4c66e13fd5a4af9cbaa
Reviewed-on: https://go-review.googlesource.com/c/go/+/610818
Reviewed-by: Dmitri Shuralyov <dmitshur@google.com>
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Cherry Mui
Russ Cox
Robert Griesemer
Brad Fitzpatrick
Constantin Konstantinidis
David Chase
Keith Randall
chenguoqi
Xiaolin Zhao
Tim King
Youlin Feng
Paul E. Murphy
Emmanuel T Odeke
sunnymilk
Ian Lance Taylor
changwang ma
Srinivas Pokala
Dmitri Shuralyov
Sam Thanawalla
qiulaidongfeng
Robert Griesemer
Michael Matloob
Cuong Manh Le
Michael Anthony Knyszek
Hao Liu
Michael Pratt
Joel Sing
Jayanth Krishnamurthy
qmuntal
Matt T. Proud
Lin Runze
limeidan
Siddhartha Bagaria
Filippo Valsorda
Mauri de Souza Meneguzzo
Max Neverov
Rob Findley
Shuo Wang
zhangjian
apocelipes
xzhang39
Tobias Klauser
Rhys Hiltner
Austin Clements
Brian Palmer
Matt Harbison
Mark Ryan
Jes Cok
Alan Donovan
Conrad Irwin
Felix Geisendörfer
David du Colombier
jokemanfire
Paschalis Tsilias
amusman
cuishuang
Sebastian Nickolls
Kir Kolyshkin