I keep having to reconstruct how dist test's command system works.
This CL documents the main functions to help with this.
Change-Id: Ic1102496d3c7f356e73f3fa2ea76498251f525d4
Reviewed-on: https://go-review.googlesource.com/c/go/+/448799
Run-TryBot: Austin Clements <austin@google.com>
Reviewed-by: Ian Lance Taylor <iant@google.com>
TryBot-Result: Gopher Robot <gobot@golang.org>
Reviewed-by: Dmitri Shuralyov <dmitshur@golang.org>
The cmd/dist cgo_test enumerates a large number of platforms in
various special cases. Some combinations are suspiciously absent. This
CL completes the combinations.
I've confirmed using trybots that the newly-enabled tests pass on
android/* (this is not surprising because the gohostos is never
"android" anyway), windows/arm64, linux/ppc64 (no cgo), linux/loong64
(except for one test, filed #56623), linux/mips*, netbsd/arm (except
for one test, filed #56629), and netbsd/arm64. The windows/arm builder
is out to lunch, so I'm assuming that works. Since netbsd/arm and
arm64 mostly passed these tests, I've also enabled them on netbsd/386
and netbsd/amd64, where they seem to work fine as well.
Preparation for #37486.
Change-Id: I04c3348e4f422d74d51e714647ca3db379e6e919
Reviewed-on: https://go-review.googlesource.com/c/go/+/448016
Run-TryBot: Austin Clements <austin@google.com>
Reviewed-by: Dmitri Shuralyov <dmitshur@golang.org>
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Auto-Submit: Austin Clements <austin@google.com>
Reviewed-by: Cherry Mui <cherryyz@google.com>
When detecting invalid types, we may detect cycles through instances.
Ensure that the uninstantiated origin type is also marked invalid.
Fixes#56665
Change-Id: Id67653bcb072ac80161dea07d0ced566e61564a8
Reviewed-on: https://go-review.googlesource.com/c/go/+/449275
Run-TryBot: Robert Findley <rfindley@google.com>
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Reviewed-by: Robert Griesemer <gri@google.com>
This specifically doesn't add support for X25519 certificates.
Refactored parsePublicKey not to depend on the public PublicKeyAlgorithm
values, and ParseCertificate/ParseCertificateRequest to ignore keys that
don't have a PublicKeyAlgorithm even if parsePublicKey supports them.
Updates #56088
Change-Id: I2274deadfe9bb592e3547c0d4d48166de1006df0
Reviewed-on: https://go-review.googlesource.com/c/go/+/450815
Reviewed-by: Roland Shoemaker <roland@golang.org>
Run-TryBot: Filippo Valsorda <filippo@golang.org>
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Reviewed-by: Joedian Reid <joedian@golang.org>
Auto-Submit: Filippo Valsorda <filippo@golang.org>
Fix noopt build break from CL 450136 by not running test.
I can't reproduce the failure locally, but it's entirely reasonable
for this test to fail when optimizations are disabled, so just don't
run it when optimizations are disabled.
Change-Id: I882760fc7373ba0449379f81d295312a6be49be1
Reviewed-on: https://go-review.googlesource.com/c/go/+/450740
Reviewed-by: Cuong Manh Le <cuong.manhle.vn@gmail.com>
Reviewed-by: Michael Stapelberg <stapelberg@google.com>
Auto-Submit: Russ Cox <rsc@golang.org>
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Global variable initializers like
var myErr error = &myError{"msg"}
have been converted to statically initialized data
from the earliest days of Go: there is no init-time
execution or allocation for that line of code.
But if the expression is moved into an inlinable function,
the static initialization no longer happens.
That is, this code has always executed and allocated
at init time, even after we added inlining to the compiler,
which should in theory make this code equivalent to
the original:
func NewError(s string) error { return &myError{s} }
var myErr2 = NewError("msg")
This CL makes the static initialization rewriter understand
inlined functions consisting of a single return statement,
like in this example, so that myErr2 can be implemented as
statically initialized data too, just like myErr, with no init-time
execution or allocation.
A real example of code that benefits from this rewrite is
all globally declared errors created with errors.New, like
package io
var EOF = errors.New("EOF")
Package io no longer has to allocate and initialize EOF each
time a program starts.
Another example of code that benefits is any globally declared
godebug setting (using the API from CL 449504), like
package http
var http2server = godebug.New("http2server")
These are no longer allocated and initialized at program startup either.
The list of functions that are inlined into static initializers when
compiling std and cmd (along with how many times each occurs) is:
cmd/compile/internal/ssa.StringToAux (3)
cmd/compile/internal/walk.mkmapnames (4)
errors.New (360)
go/ast.NewIdent (1)
go/constant.MakeBool (4)
go/constant.MakeInt64 (3)
image.NewUniform (4)
image/color.ModelFunc (11)
internal/godebug.New (12)
vendor/golang.org/x/text/unicode/bidi.newBidiTrie (1)
vendor/golang.org/x/text/unicode/norm.newNfcTrie (1)
vendor/golang.org/x/text/unicode/norm.newNfkcTrie (1)
For the cmd/go binary, this CL cuts the number of init-time
allocations from about 1920 to about 1620 (a 15% reduction).
The total executable code footprint of init functions is reduced
by 24kB, from 137kB to 113kB (an 18% reduction).
The overall binary size is reduced by 45kB,
from 15.335MB to 15.290MB (a 0.3% reduction).
(The binary size savings is larger than the executable code savings
because every byte of executable code also requires corresponding
runtime tables for unwinding, source-line mapping, and so on.)
Also merge test/sinit_run.go, which had stopped testing anything
at all as of CL 161337 (Feb 2019) and initempty.go into a new test
noinit.go.
Fixes#30820.
Change-Id: I52f7275b1ac2a0a32e22c29f9095071c7b1fac20
Reviewed-on: https://go-review.googlesource.com/c/go/+/450136
Reviewed-by: Cherry Mui <cherryyz@google.com>
Reviewed-by: Cuong Manh Le <cuong.manhle.vn@gmail.com>
Reviewed-by: Joedian Reid <joedian@golang.org>
Reviewed-by: Keith Randall <khr@golang.org>
Reviewed-by: Than McIntosh <thanm@google.com>
Auto-Submit: Russ Cox <rsc@golang.org>
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We already emit types for any and func(error) string in runtime.a
but unlike the other pre-emitted types, we don't then exclude them
from being emitted in other packages. Fix that.
Also add slices of non-func types that we already emit.
Saves 0.3% of .a files in std cmd deps, computed by adding sizes from:
ls -l $(go list -export -f '{{.Export}}' -deps std cmd
The effect is small and not worth doing on its own.
The real improvement is making “what to write always in runtime”
and “what not to write in other packages” more obviously aligned.
Change-Id: Ie5cb5fd7e5a3025d2776d9b4cece775fdf92d3b6
Reviewed-on: https://go-review.googlesource.com/c/go/+/450135
Reviewed-by: Keith Randall <khr@golang.org>
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Reviewed-by: Keith Randall <khr@google.com>
For range loops, we use a pointer to the backing store that gets
incremented on each iteration of the loop.
The problem with this scheme is that at the end of the last iteration,
we may briefly have a pointer that points past the end of the backing store
of the slice that is being iterated over. We cannot let the garbage collector
see that pointer.
To fix this problem, have the incremented pointer live briefly as
a uintptr instead of a normal pointer, so it doesn't keep anything
alive. Convert back to a normal pointer just after the loop condition
is checked, but before anything that requires a real pointer representation
(in practice, any call, which is what could cause a GC scan or stack copy).
Fixes#56699
Change-Id: Ia928d23f85a211565357603668bea4e5c534f989
Reviewed-on: https://go-review.googlesource.com/c/go/+/449995
Reviewed-by: David Chase <drchase@google.com>
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Reviewed-by: Cuong Manh Le <cuong.manhle.vn@gmail.com>
When PSSSaltLengthAuto is passed to SignPSS, and the key size is too
small to create a valid salt, return ErrMessageTooLong
Change-Id: I4e0d70bdd54fcd667eae10e0a70b4f540a4ebe93
Reviewed-on: https://go-review.googlesource.com/c/go/+/450796
Reviewed-by: Filippo Valsorda <filippo@golang.org>
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This not only reduces the latency of the test, but also respects
build flags like '-race' and '-cover' passed to the 'go test' command.
Change-Id: Ie9a3c03d32d7eea268ba6f8f8ac4000539434052
Reviewed-on: https://go-review.googlesource.com/c/go/+/450713
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testenv.Command sets a default based on the test\'s deadline
and sends SIGQUIT (where supported) in case of a hang.
Change-Id: I6710d9866c16610310347d50be1c0916c2976e87
Reviewed-on: https://go-review.googlesource.com/c/go/+/450712
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testenv.Command sets a default timeout based on the test's deadline
and sends SIGQUIT (where supported) in case of a hang.
Change-Id: I973be280cd0a7f495b491bfb0e04771389562e04
Reviewed-on: https://go-review.googlesource.com/c/go/+/450711
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This not only reduces the latency of the test, but also respects
build flags like '-race' and '-cover' passed to the 'go test' command.
Change-Id: I4914870396f90097f45d00012e5601fe42655899
Reviewed-on: https://go-review.googlesource.com/c/go/+/450710
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testenv.Command sets a default timeout based on the test's deadline
and sends SIGQUIT (where supported) in case of a hang.
Change-Id: Iabd114dd23b85da524e7ea8415f2bbf2c54b380f
Reviewed-on: https://go-review.googlesource.com/c/go/+/450709
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This not only reduces the latency of the test, but also respects
build flags like '-race' and '-cover' passed to the 'go test' command.
Change-Id: Icdf256420c4dce2da7a187513b7dd08393b76146
Reviewed-on: https://go-review.googlesource.com/c/go/+/450708
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testenv.Command sets a default timeout based on the test's deadline
and sends SIGQUIT (where supported) in case of a hang.
Change-Id: Ia1dd1bacfa2c9378401bbce304ebf7ee3f159352
Reviewed-on: https://go-review.googlesource.com/c/go/+/450707
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This not only reduces the latency of the test, but also respects
build flags like '-race' and '-cover' passed to the 'go test' command.
Change-Id: Ifaf396465f54ad0a28977b6c0a4b87dbc359de37
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testenv.Command sets a default timeout based on the test's deadline
and sends SIGQUIT (where supported) in case of a hang.
Change-Id: I1965ea453af6aa9eeae9669065deb0b372dc6caf
Reviewed-on: https://go-review.googlesource.com/c/go/+/450705
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This not only reduces the latency of the test, but also respects
build flags like '-race' and '-cover' passed to the 'go test' command.
Change-Id: Icd22062ab75964a74d011c81ea6c99be80bece18
Reviewed-on: https://go-review.googlesource.com/c/go/+/450704
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This not only reduces the latency of the test, but also respects
build flags like '-race' and '-cover' passed to the 'go test' command.
Change-Id: Iffdc60d444a9ff1d4ff5e688bca1c2ef0dfa03c8
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testenv.Command sets a default timeout based on the test's deadline
and sends SIGQUIT (where supported) in case of a hang.
Change-Id: I25a67aa5793c6fa977ff6d4dc59ca1533bf58d41
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testenv.Command sets a default timeout based on the test's deadline
and sends SIGQUIT (where supported) in case of a hang.
Change-Id: I464dc34b50f3360123aca9e8666df9799c15e457
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testenv.Command sets a default timeout based on the test's deadline
and sends SIGQUIT (where supported) in case of a hang.
Change-Id: I6f8391da50e74919ccc59cd43ccae99affab8798
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testenv.Command sets a default timeout based on the test's deadline
and sends SIGQUIT (where supported) in case of a hang.
Change-Id: Ica1a9985f9abb1935434367c9c8ba28fc50f331d
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testenv.Command sets a default timeout based on the test's deadline
and sends SIGQUIT (where supported) in case of a hang.
Change-Id: Ia18c323067a416381e5a70d08c50f51576054a79
Reviewed-on: https://go-review.googlesource.com/c/go/+/450698
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testenv.Command sets a default timeout based on the test's deadline
and sends SIGQUIT (where supported) in case of a hang.
Change-Id: Ic19172b6cd05526cf6776b904e2dfebdd8b055a8
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testenv.Command sets a default timeout based on the test's deadline
and sends SIGQUIT (where supported) in case of a hang.
Change-Id: I084b324a20d5ecf733b2cb95f160947a7410a805
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testenv.Command sets a default timeout based on the test's deadline
and sends SIGQUIT (where supported) in case of a hang.
Change-Id: Ic19f8b020f6d410942bb2ece8a3b71607ee6488a
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Seems simpler than having two different parsing mechanisms.
Change-Id: I4f8468bc025f8e03f59ec9c79b17721581b64eed
Reviewed-on: https://go-review.googlesource.com/c/go/+/448855
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On advice of the department of garbage collection, forcing a garbage
collection generally does not improve performance. However,
this-data-is-now-unreachable is a good property to be able to test,
and that requires finalizers and a forced GC. So, to save build time,
this test was removed from the compiler itself, but to verify the
property, it was added to the fma_test (and the end-to-end dependence
on the flag was tested with an inserted failure in testing the
test).
TODO: also turn on the new -d=gccheck=1 debug flag on the ssacheck
builder.
Benchmarking reveals that it is profitable to avoid this GC,
with about 1.5% reduction in both user and wall time.
(48 p) https://perf.golang.org/search?q=upload:20221103.3
(12 p) https://perf.golang.org/search?q=upload:20221103.5
Change-Id: I4c4816d619735838a32388acf0cc5eb1cd5f0db5
Reviewed-on: https://go-review.googlesource.com/c/go/+/447359
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For #56603, CL 448275 added a _ [0]T field to atomic.Pointer,
so that different kinds of atomic.Pointer are not convertible.
Unfortunately, that breaks code like:
type List struct {
Next atomic.Pointer[List]
}
which should be valid, just as using Next *List is valid.
Instead, we get:
./atomic_test.go:2533:6: invalid recursive type List
./atomic_test.go:2533:6: List refers to
./atomic_test.go:2534:13: "sync/atomic".Pointer refers to
./atomic_test.go:2533:6: List
Fix by using _[0]*T instead.
Change-Id: Icc4c83c691d35961d20cb14b824223d6c779ac5e
Reviewed-on: https://go-review.googlesource.com/c/go/+/450655
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CL 440455 fixed missing walk pass for static initialization slice.
However, slicelit may produce un-typechecked node, thus we need to do
typecheck for sinit before calling walkStmtList.
Fixes#56727
Change-Id: I40730cebcd09f2be4389d71c5a90eb9a060e4ab7
Reviewed-on: https://go-review.googlesource.com/c/go/+/450215
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This change clarifies that a finalizer is not guaranteed to run,
not only for zero bytes objects but also tiny objects (< 16bytes).
Fixes#46827
Change-Id: I193e77f6f024c79110604f86bcb1a28b16cf98ec
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We already had some tests for special cases such as PSS with 513 bit
keys. The upcoming backend rewrite also happened to crash at 63 and 504
bits for different reasons. Might as well be systematic about it.
Also, make sure SignPSS returns ErrMessageTooLong like SignPKCS1v15 when
the key is too small, instead of panicking or returning an unnamed error.
-all takes a couple minutes on my M1.
Change-Id: I656239a00d0831fa7d187a6d3bb30341d41602f7
Reviewed-on: https://go-review.googlesource.com/c/go/+/443195
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Samples in the mutex profile have their count and duration scaled
according to the probability they were sampled. This is done when the
profile is actually requested. The adjustment is done using to the
current configured sampling rate. However, if the sample rate is changed
after a specific sample is recorded, then the sample will be scaled
incorrectly. In particular, if the sampling rate is changed to 0, all of
the samples in the encoded profile will have 0 count and duration. This
means the profile will be "empty", even if it should have had samples.
This CL scales the samples in the profile when they are recorded, rather
than when the profile is requested. This matches what is currently done
for the block profile.
With this change, neither the block profile nor mutex profile are scaled
when they are encoded, so the logic for scaling the samples can be
removed.
Change-Id: If228cf39284385aa8fb9a2d62492d839e02f027f
Reviewed-on: https://go-review.googlesource.com/c/go/+/443056
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For #48866
For #54139
For #54801
Change-Id: Iafe72ccc7e756ec1edb5bb7e8e90d385458cff29
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For #53435.
Change-Id: I894bd645b0b61d7dd5f3aae7d1ea7b8a12f31dd8
Reviewed-on: https://go-review.googlesource.com/c/go/+/450376
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