We are limited to 64 registers in the allocator today, and PPC64
has not been allocating F0,F26-F31 for quite some time without
performance impact.
Change-Id: If9d60be5037c94991fdd90a44461c3a6b96315cf
Reviewed-on: https://go-review.googlesource.com/c/go/+/395835
Reviewed-by: Keith Randall <khr@golang.org>
Reviewed-by: Cherry Mui <cherryyz@google.com>
Run-TryBot: Paul Murphy <murp@ibm.com>
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These FP registers on PPC64 have no restrictions, they can
be used like the others. F27-F31 were sequested long ago for
scratch storage which has long since been reverted, but they
weren't added back to the allocator pool.
Change-Id: I9074660e2fc91a2044c9768f700a8215802cba51
Reviewed-on: https://go-review.googlesource.com/c/go/+/395834
Run-TryBot: Paul Murphy <murp@ibm.com>
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Trust: Lynn Boger <laboger@linux.vnet.ibm.com>
These fields are also valid for _Star.
Change-Id: I2582000ac1737c41416e69f91404f7cac279d718
Reviewed-on: https://go-review.googlesource.com/c/go/+/395916
Trust: Matthew Dempsky <mdempsky@google.com>
Reviewed-by: Robert Griesemer <gri@golang.org>
Use bytealg.IndexByteString(str, 0) instead of looping through the
string to check for a zero byte. A quick and dirty benchmark shows 10x
performance improvement (on amd64 machine, using go 1.17.3).
BytePtrFromString is used by many functions with string arguments.
This change should make many functions in os package, such as those
accepting a filename (os.Open, os.Stat, etc.), a tad faster.
PS I am aware that syscall package is deprecated and frozen, but this
change is mainly for the os package and the likes. The alternative
would be for os to switch to x/sys, which is a much bigger change.
Change-Id: I18fdd50f9fbfe0a23a4a71bc4bd0a5f5b0eaa475
Reviewed-on: https://go-review.googlesource.com/c/go/+/368457
Reviewed-by: Tobias Klauser <tobias.klauser@gmail.com>
Reviewed-by: Emmanuel Odeke <emmanuel@orijtech.com>
Run-TryBot: Ian Lance Taylor <iant@golang.org>
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All the code in ioutil just forwards functionality to code
in either the io or os packages, per issue 42026.
This change adds the "Deprecated" marker to all the
functions in this package.
For #42026Fixes#51927
Change-Id: Ia807bc5c0edb06cc80ec7e35917dcfe2ad50f0ea
GitHub-Last-Rev: 3c3603f368
GitHub-Pull-Request: golang/go#51961
Reviewed-on: https://go-review.googlesource.com/c/go/+/395918
Reviewed-by: Emmanuel Odeke <emmanuel@orijtech.com>
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CL 390474 removed last usages of ConstValue, it can now be removed, and
also Float64Val, since when it's only used by ConstValue.
CanInt64 is un-used for a long time, its original form last usage was
removed in CL 221802.
Change-Id: Id142b0da49c319faca73ef1b2090325f81431321
Reviewed-on: https://go-review.googlesource.com/c/go/+/396078
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Use the syscall method instead of repeating the type conversions for each OS.
Change-Id: I1db975b3aaa189cf724d7b1b7c5c41bc64dd964d
Reviewed-on: https://go-review.googlesource.com/c/go/+/374574
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Reviewed-by: Tobias Klauser <tobias.klauser@gmail.com>
The existing implementation of the xml decoder uses the line number
only for reporting syntax errors. The line number of the last read
token and the column within the line is useful for the users even
in non-error conditions.
Fixes#45628
Change-Id: I37b5033ff5ff8411793d8f5180f96aa4537e83f5
Reviewed-on: https://go-review.googlesource.com/c/go/+/311270
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Trust: Emmanuel Odeke <emmanuel@orijtech.com>
CL 394074 broke the noopt builder. Something about time.After's inlining
depends on the build flags to make.bash, not the build flags that run.go
passes.
Change-Id: Ib284c66ea2008a4d32829c055d57c54a34ec3fb4
Reviewed-on: https://go-review.googlesource.com/c/go/+/396037
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Same as BSFQ, if the input is known to be nonzero we don't need a CMOV
to correct for the weird all-zero behavior of the BSRQ instruction.
Fixes#51964
Change-Id: Ic1d14fdf3e7e698ff2f47efecfd761d8a036012a
Reviewed-on: https://go-review.googlesource.com/c/go/+/396034
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Reviewed-by: David Chase <drchase@google.com>
In CL 367756 we remove ReadFileRevs function, We simplified
the implementation of the interface Repo. and the type FileRev
is no longer used.
Change-Id: Iec9e2f0d6bb227f4d0d0f565e897137dcf392a3a
Reviewed-on: https://go-review.googlesource.com/c/go/+/373375
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This reverts commit e550c30545.
Reason for revert: Method bound calls are no longer implemented using interface calls, so it is no longer necessary. Leaving the test, though.
Change-Id: I80f1e4cd921063cd27ca8f07998316ca282e075b
Reviewed-on: https://go-review.googlesource.com/c/go/+/395594
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When we have x.M(args) where x is a value of type parameter type, we
currently cast x to the bound of that type parameter (which is an interface)
and then invoke the method on that interface. That's pretty inefficient
because:
1) We need to convert x to an interface, which often requires allocation.
With CL 378178 it is at least stack allocation, but allocation nontheless.
2) We need to call through wrapper functions to unpack the interface
into the right argument locations for the callee.
Instead, let's just call the target directly. The previous CL to this one
added method expression closures to the dictionary, which is a simple
captureless closure that implements T.M for type parameter T and method M.
So to implement x.M(args) for x of type T, we use methodexpr(T,M)(x, args).
We just need to move x from the receiver slot to the first argument, and
use the dictionary entry to implement the polymorphism. This works because
we stencil by shape, so we know how to marshal x for the call even though
we don't know its exact type.
We should be able to revert CL 378178 after this one, as that optimization
will no longer be necssary as we're not converting values to interfaces
to implement this language construct anymore.
Update #50182
Change-Id: I813de4510e41ab63626e58bd1167f9ae93016202
Reviewed-on: https://go-review.googlesource.com/c/go/+/385274
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Currently we do quite a dance for method expressions on generic
types. We write a new closure, and in that closure convert the
receiver to an interface with the required method, then call the
target using an interface call.
Instead in this CL, we just allocate a (captureless) closure in the
dictionary which implements that method expression.
This CL makes method expressions faster and simpler. But the real win
is some followon CLs, where we can use the same closure to implement
bound method calls using the same closure, instead of converting to
interface and having wrappers convert back. Much faster and simpler.
Still thinking about how to do method values. The receiver still
needs to be captured, so there must be some closure involved, I think.
Update #50182
Change-Id: I1fbd57e7105663f8b049955b8f4111649a5f4aa8
Reviewed-on: https://go-review.googlesource.com/c/go/+/385254
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Add the riscv64 register ABI constants and allow regabi
value to be set for riscv64
Change-Id: I3ce98bf9a29d2acc00f92650b27bc59884ed62ad
Reviewed-on: https://go-review.googlesource.com/c/go/+/359336
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Historically, we sometimes recorded imports based on either package
path ("net/http") or object file path ("net/http.a"). But modern Go
build systems always use package path, and the extra ".a" suffix
doesn't mean anything anyway.
Change-Id: I6060ef8bafa324168710d152a353f4d8db062133
Reviewed-on: https://go-review.googlesource.com/c/go/+/395254
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The correct (or at least mostly commonly used) name for addresses of the
form ::ffff:192.0.2.128 is "IPv4-mapped IPv6". Some of the comments in
the netip package used that name, but others used "IPv6-mapped IPv4" or
"v6-mapped". This change makes the usage of the term consistent.
Change-Id: Ic01309ddf9252705a2387322d940b777e88800a5
GitHub-Last-Rev: 56044dcb97
GitHub-Pull-Request: golang/go#51950
Reviewed-on: https://go-review.googlesource.com/c/go/+/395914
Reviewed-by: Damien Neil <dneil@google.com>
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The detection of the "unknown charset" case was too tailored
to one specific address parser. Make it generalize, so that custom
address parsers behave the same way as the default one
for character sets they do not handle.
Fixes#41625.
Change-Id: I347d4bb6844d0a1f23e908b776d21e8be5af3874
Reviewed-on: https://go-review.googlesource.com/c/go/+/283632
Reviewed-by: Ian Lance Taylor <iant@golang.org>
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The only usage of NewClosureExpr is inside NewClosureFunc, which is its
alternative version. So just remove NewClosureExpr and inline it there.
Change-Id: I1900f4fbb48d7b4f6e6a857f7f7760cd27302671
Reviewed-on: https://go-review.googlesource.com/c/go/+/395855
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When run with race detector the test fails without the fix.
Fixes#51799
Change-Id: I273adb6d3a2b1e0d606b9c27ab4c6a9aa4aa8064
GitHub-Last-Rev: a5ddd146a2
GitHub-Pull-Request: golang/go#51805
Reviewed-on: https://go-review.googlesource.com/c/go/+/393974
Reviewed-by: Damien Neil <dneil@google.com>
Reviewed-by: Brad Fitzpatrick <bradfitz@golang.org>
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For 1-byte type, we have a special case for converting to interface
type. But we missed an optimization for sole component-ed types, this CL
add that one.
goos: linux
goarch: amd64
cpu: 11th Gen Intel(R) Core(TM) i7-1165G7 @ 2.80GHz
Benchmark_BoolField-8 1000000000 0.6473 ns/op
Benchmark_ByteField-8 1000000000 0.6094 ns/op
Benchmark_Uint8Field-8 1000000000 0.6385 ns/op
Benchmark_Int16Field-8 785179434 1.481 ns/op
Benchmark_Int32Field-8 796127782 1.539 ns/op
Benchmark_Int64Field-8 718815478 1.657 ns/op
Fixes#49879
Change-Id: Idc0e9d3ff738c8c8081b8e8d65093dacf2bcf392
Reviewed-on: https://go-review.googlesource.com/c/go/+/367755
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Add a new rewrite rule to merge ANDconst and UBFX into
UBFX.
Add test cases.
Change-Id: I24d6442d0c956d7ce092c3a3858d4a3a41771670
Reviewed-on: https://go-review.googlesource.com/c/go/+/377054
Trust: Fannie Zhang <Fannie.Zhang@arm.com>
Reviewed-by: Cherry Mui <cherryyz@google.com>
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If the http.Request passed to ReverseProxy.ServeHTTP has a context
with a non-nil Done channel, don't watch the ResponseWriter's
CloseNotify channel.
Avoids starting an extra background goroutine in the common case.
Change-Id: I1328f3e02d3025caa0f446a2f20dfc14ef604c64
Reviewed-on: https://go-review.googlesource.com/c/go/+/376415
Trust: Brad Fitzpatrick <bradfitz@golang.org>
Reviewed-by: Brad Fitzpatrick <bradfitz@golang.org>
Trust: Damien Neil <dneil@google.com>
This CL updates test/run.go to compile xxx.dir/x.go with a package
path of "test/x" instead of just "x". This prevents collisions with
standard library packages.
It also requires updating a handful of tests to account for the
updated package paths.
Fixes#25693.
Change-Id: I49208c56ab3cb229ed667d547cd6e004d2175fcf
Reviewed-on: https://go-review.googlesource.com/c/go/+/395258
Reviewed-by: Ian Lance Taylor <iant@golang.org>
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Label symbols are only useful for relocations from text. No need
to do it for DWARF. And the PE symbol table doesn't like them.
May fix#51903.
Change-Id: Ibe6ea880d8533ba1dcc017030072c7dffee0e9e5
Reviewed-on: https://go-review.googlesource.com/c/go/+/395215
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Reviewed-by: Than McIntosh <thanm@google.com>
I was testing edge cases in gofumpt, a fork of gofmt,
and noticed that gofmt will return a bare io error on empty files,
as demonstrated by the added test case without a fix:
> ! exec $GOROOT/bin/gofmt empty.go nopackage.go
[stderr]
EOF
nopackage.go:1:1: expected 'package', found not
The problem is the code that detects concurrent modifications.
It relies on ReadFull and correctly deals with io.ErrUnexpectedEOF,
but it did not pay attention to io.EOF, which can happen when size==0.
Change-Id: I6092391721edad4584fb5922d3e3a8fb3da86493
Reviewed-on: https://go-review.googlesource.com/c/go/+/393757
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The file names reported in error messages by the compiler are
printed unchanged from the file names provided to the compiler;
the -L flag has no impact on the file names themselves, contrary
to what the old flag description suggested.
If an error is reported on a line that is affected by a //line
directive, an error message reports the file name and line as
controlled by the directive (i.e., the actual source position
is not known).
If the -L flag is provided, the actual source position is also
reported in square brackets.
This change documents this with an updated help string for the
flag.
For #36988.
Change-Id: I39ee35e6ff6cd5cfa44d87dabb05b8d78575d631
Reviewed-on: https://go-review.googlesource.com/c/go/+/395115
Trust: Robert Griesemer <gri@golang.org>
Reviewed-by: Hyang-Ah Hana Kim <hyangah@gmail.com>
So all runtime map functions will use the same code path, make it easier
for future CL to handle stack object for map key.
Passes toolstash -cmp.
For #43753
Change-Id: I374fa4e351c1eba079e2ccb637b1ef5adad1488f
Reviewed-on: https://go-review.googlesource.com/c/go/+/321713
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CL 187617 removed oldescape_linkname.go, but forgot to remove this
directory too.
Change-Id: I6d208c4d96d636b3df93adec1ee22fe1d4f5f61d
Reviewed-on: https://go-review.googlesource.com/c/go/+/395259
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bug302 compiles p.go with -p=p, and then manually creates a pp.a
archive, and imports it as both "p" and "pp". This is a misuse of
cmd/compile's -p flag, and it isn't representative of how any actual
Go build systems work anyway.
This test made sense back when cmd/compile still wrote out bare object
files, which was then split into separate __.PKGDEF and _go_.o archive
entries when added to a pack archive. But since CL 102236, cmd/compile
always writes out pack files.
Updates #51734.
Change-Id: I4b5de22d348ecc0a72c98b512351c2d267c77736
Reviewed-on: https://go-review.googlesource.com/c/go/+/393896
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Currently, run.go's *dir tests allow "x.go" to be imported
interchangeably as either "x" or "./x". This is generally fine, but
can cause problems when "x" is the name of a standard library
package (e.g., "fixedbugs/bug345.dir/io.go").
This CL is an automated rewrite to change all `import "x"` directives
to use `import "./x"` instead. It has no effect today, but will allow
subsequent CLs to update test/run.go to resolve "./x" to "test/x" to
avoid stdlib collisions.
Change-Id: Ic76cd7140e83b47e764f8a499e59936be2b3c876
Reviewed-on: https://go-review.googlesource.com/c/go/+/395116
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This CL allow the CALL ops to take variable number of arguments.
Change-Id: If84bb306c2f23a0a934e31dfeabbca7bed0c1796
Reviewed-on: https://go-review.googlesource.com/c/go/+/360216
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After CL 394556, only LocalPkg is passed to AllowsGoVersion, so simplify
the code to not depend on Pkg anymore.
Change-Id: I8f9bfd4090100eec60cf3959c0d8fa92a26fc32a
Reviewed-on: https://go-review.googlesource.com/c/go/+/394954
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SetBroken is never called and Broken always returns false.
Updates #51691
Change-Id: I7e3fd3f2121268596d2e93a28c69e895bcf802ab
Reviewed-on: https://go-review.googlesource.com/c/go/+/394558
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anyBroke now always return false, we can get rid of it.
Updates #51691
Change-Id: Idab5bc9f9f222cc63e50bdde2b23b9404a4bd74e
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types2 handles those checks instead.
The only exception is noder.checkEmbed, since when types2
have not known about "//go:embed" pragma yet.
Updates #51691
Change-Id: I74ded03536023fe838f23fa7421e04513f904f66
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CL 388535 removed the only usage of this function.
Change-Id: Ie5a61cce75b03d83162f62989fe52388b069c9bc
Reviewed-on: https://go-review.googlesource.com/c/go/+/394576
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And use base.Fatalf in code that use n.SetDiag(true) instead.
Updates #51691
Change-Id: Ib3c0b9c89b8d95717391cbe7d424240e288ada1c
Reviewed-on: https://go-review.googlesource.com/c/go/+/394575
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