rand.Prime does not guarantee the precise prime selection algorithm as
part of its contract. For example, it changed slightly in CL 387554. We
want to ensure that no tests come to rely on it staying the same, so
just like other cryptographic functions that use randomness in an
unspecified way (ECDSA signing, RSA PKCS #1 v1.5 encryption, RSA key
generation), make it randomly read an extra byte or not.
Change-Id: Ib9079c03360812d412b7c21d5a06caadabb4a8bf
Reviewed-on: https://go-review.googlesource.com/c/go/+/391554
Run-TryBot: Filippo Valsorda <filippo@golang.org>
Auto-Submit: Filippo Valsorda <filippo@golang.org>
Trust: Filippo Valsorda <filippo@golang.org>
TryBot-Result: Gopher Robot <gobot@golang.org>
Reviewed-by: Roland Shoemaker <roland@golang.org>
Contributors to the loong64 port are:
Weining Lu <luweining@loongson.cn>
Lei Wang <wanglei@loongson.cn>
Lingqin Gong <gonglingqin@loongson.cn>
Xiaolin Zhao <zhaoxiaolin@loongson.cn>
Meidan Li <limeidan@loongson.cn>
Xiaojuan Zhai <zhaixiaojuan@loongson.cn>
Qiyuan Pu <puqiyuan@loongson.cn>
Guoqi Chen <chenguoqi@loongson.cn>
This port has been updated to Go 1.15.6:
https://github.com/loongson/go
For #46229
Change-Id: I0c58305754c20d2a59328adbd82caa527de254ec
Reviewed-on: https://go-review.googlesource.com/c/go/+/396735
Reviewed-by: Ian Lance Taylor <iant@golang.org>
Trust: Cherry Mui <cherryyz@google.com>
In the Type identity section, the example provides various types as givens.
The example refers to the type *T5, but it is not provided in the givens.
I am assuming this was a typo, and was meant to refer to *A1 or *B1.
*B1 seems to be in alignment with the rest of the provided examples.
Change-Id: I554319ee8bca185c3643559321417e8b2a544ba0
GitHub-Last-Rev: e80560d32a
GitHub-Pull-Request: golang/go#52143
Reviewed-on: https://go-review.googlesource.com/c/go/+/398075
Reviewed-by: Robert Griesemer <gri@golang.org>
Trust: Ian Lance Taylor <iant@golang.org>
Not hooked up to everything else yet.
Copy of CL 395880, for setting up GOEXPERIMENT=boringcrypto
builder ahead of merge.
For #51940.
Change-Id: If842761f77d07329d88748990b95f4b39c2f153a
Reviewed-on: https://go-review.googlesource.com/c/go/+/397895
Trust: Russ Cox <rsc@golang.org>
Run-TryBot: Russ Cox <rsc@golang.org>
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Reviewed-by: Ian Lance Taylor <iant@golang.org>
When using Go 1.4 this doesn't matter, but when using Go 1.17,
the bootstrap toolchain will complain about unknown GOEXPERIMENT settings.
Clearly GOEXPERIMENT is for the toolchain being built, not the bootstrap.
Already submitted as CL 395879 on the dev.boringcrypto branch,
but needed on master to set up GOEXPERIMENT=boringcrypto
builder ahead of merge.
For #51940.
Change-Id: Ib6a4099cca799b4d5df1974cdb5471adb0fd557d
Reviewed-on: https://go-review.googlesource.com/c/go/+/397894
Trust: Russ Cox <rsc@golang.org>
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The SHRX/SHLX instruction can take any general register as the shift count operand, and can read source from memory. This CL introduces some operators to combine load and shift to one instruction.
For #47120
Change-Id: I13b48f53c7d30067a72eb2c8382242045dead36a
Reviewed-on: https://go-review.googlesource.com/c/go/+/385174
Reviewed-by: Keith Randall <khr@golang.org>
Trust: Cherry Mui <cherryyz@google.com>
In CL 397494 Linux/PPC64LE syso was not updated due to test
failure. It should be fixed by the previous CL and should work
now.
Change-Id: Ieb0993ded5541397094d3aecae28c5255c822eac
Reviewed-on: https://go-review.googlesource.com/c/go/+/397676
Trust: Cherry Mui <cherryyz@google.com>
Run-TryBot: Cherry Mui <cherryyz@google.com>
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Reviewed-by: Keith Randall <khr@golang.org>
Now that there's a native go/types importer for unified IR, the
compiler no longer needs to stay backwards compatible with old iexport
importers.
This CL also updates the go/types and go/internal/gcimporter tests to
expect that the unified IR importer sets the receiver parameter type
to the underlying Interface type, rather than the Named type. This is
a temporary workaround until we make a decision on #49906.
Notably, this makes `GOEXPERIMENT=unified go test` work on generics
code without requiring `-vet=off` (because previously cmd/vet was
relying on unified IR's backwards-compatible iexport data, which
omitted generic types).
Change-Id: Iac7a2346bb7a91e6690fb2978fb702fadae5559d
Reviewed-on: https://go-review.googlesource.com/c/go/+/386004
Trust: Matthew Dempsky <mdempsky@google.com>
Run-TryBot: Matthew Dempsky <mdempsky@google.com>
Reviewed-by: Robert Griesemer <gri@golang.org>
Reviewed-by: Robert Findley <rfindley@google.com>
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This CL ports unified IR's types2 importer back to the go/types
API. Notably, it drops support for lazy importing, because those APIs
aren't exposed yet via go/types.
Also, it supports unified IR's "final" data format, which wholey
replaces the iexport data format rather than the current
backwards-compatible hack that cmd/compile uses. The next CL will
switch the compiler to using this same format.
Change-Id: I44e1744bbdc384c9c354119975e68befdc117cff
Reviewed-on: https://go-review.googlesource.com/c/go/+/386002
Trust: Matthew Dempsky <mdempsky@google.com>
Run-TryBot: Matthew Dempsky <mdempsky@google.com>
Reviewed-by: Robert Griesemer <gri@golang.org>
TryBot-Result: Gopher Robot <gobot@golang.org>
Contributors to the loong64 port are:
Weining Lu <luweining@loongson.cn>
Lei Wang <wanglei@loongson.cn>
Lingqin Gong <gonglingqin@loongson.cn>
Xiaolin Zhao <zhaoxiaolin@loongson.cn>
Meidan Li <limeidan@loongson.cn>
Xiaojuan Zhai <zhaixiaojuan@loongson.cn>
Qiyuan Pu <puqiyuan@loongson.cn>
Guoqi Chen <chenguoqi@loongson.cn>
This port has been updated to Go 1.15.6:
https://github.com/loongson/go
Updates #46229
Change-Id: I23fb430f1f6e8a587f13e2f020721cbd3a45d4ed
Reviewed-on: https://go-review.googlesource.com/c/go/+/342303
Reviewed-by: Ian Lance Taylor <iant@golang.org>
Trust: Cherry Mui <cherryyz@google.com>
The existing code errors out immediately if the argument is not
"comparable", making it impossible to test a slice, map, and so
on from being compared to nil.
Fix by delaying the "comparable" error check until we encounter
an actual check between two non-comparable, non-nil values.
Note for the future: reflect makes it unnecessarily clumsy
to deal with nil values in cases like this. For instance, it
should be possible to check if a value is nil without stepping
around a panic. See the new functions isNil and canCompare
for my (too expensive) workaround.
Fixes#51642
Change-Id: Ic4072698c4910130ea7e3d76e7a148d8a8b88162
Reviewed-on: https://go-review.googlesource.com/c/go/+/392274
Reviewed-by: Ian Lance Taylor <iant@golang.org>
Run-TryBot: Ian Lance Taylor <iant@golang.org>
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Trust: Cherry Mui <cherryyz@google.com>
NumMethod counts unexported methods for interface types. This
behavior is documented in Type.NumMethod
Fixes#42123
Change-Id: Ia5aba353a8cc64190c701d1521972d57e8903564
Reviewed-on: https://go-review.googlesource.com/c/go/+/396075
Reviewed-by: Ian Lance Taylor <iant@golang.org>
Trust: Cherry Mui <cherryyz@google.com>
Disable SHA-1 signature verification in Certificate.CheckSignatureFrom,
but not in Certificate.CheckSignature. This allows verification of OCSP
responses and CRLs, which still use SHA-1 signatures, but not on
certificates.
Updates #41682
Change-Id: Ia705eb5052e6fc2724fed59248b1c4ef8af6c3fe
Reviewed-on: https://go-review.googlesource.com/c/go/+/394294
Trust: Roland Shoemaker <roland@golang.org>
Run-TryBot: Roland Shoemaker <roland@golang.org>
Auto-Submit: Roland Shoemaker <roland@golang.org>
Reviewed-by: Jordan Liggitt <liggitt@google.com>
Reviewed-by: Filippo Valsorda <filippo@golang.org>
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On PPC64LE, the C ABI requires SP to be 16-byte aligned. Also, in
the C ABI the callee may save LR, CR, R2 etc. to the 4 reserved
words of the caller's frame. This CL aligns the SP and reserves
the space on stack.
Change-Id: I738880028815b7d3402647e4ebbdae37f45acc77
Reviewed-on: https://go-review.googlesource.com/c/go/+/397675
Trust: Cherry Mui <cherryyz@google.com>
Reviewed-by: Ian Lance Taylor <iant@golang.org>
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Per the spec, "the type sets of all non-interface terms must be
pairwise disjoint (the pairwise intersection of the type sets must
be empty)" in a union.
For the overlap test, the existing implementation casually mixed
syntactic union terms (which may have interface type) with type set
terms (which are normalized/expanded and must not have interface
type). As a consequence, in some cases the overlap test failed.
This change skips terms with interface types in the overlap test.
Fixes#51607.
Change-Id: I8ae9953db31f0a0428389c6a45a6696aa2450219
Reviewed-on: https://go-review.googlesource.com/c/go/+/397695
Trust: Robert Griesemer <gri@golang.org>
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Reviewed-by: Robert Findley <rfindley@google.com>
The fix for #51112 introduced a depth check but used
ErrInternalError to avoid introduce new API in a CL that
would be backported to earlier releases.
New API accepted in proposal #51684.
This CL adds a distinct error for this case.
For #51112.
Fixes#51684.
Change-Id: I068fc70aafe4218386a06103d9b7c847fb7ffa65
Reviewed-on: https://go-review.googlesource.com/c/go/+/384617
Trust: Russ Cox <rsc@golang.org>
Run-TryBot: Russ Cox <rsc@golang.org>
Reviewed-by: Ian Lance Taylor <iant@golang.org>
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The return value "abi" of func "funcLayout" is the same as package
"internal/abi", which currently works fine, but it is more reliable to
avoid conflicts.
Change-Id: I83715dd79beff7cb3fc25747fef186dc0e2dfa8b
Reviewed-on: https://go-review.googlesource.com/c/go/+/385414
Run-TryBot: Ian Lance Taylor <iant@golang.org>
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Reviewed-by: Ian Lance Taylor <iant@golang.org>
Reviewed-by: Emmanuel Odeke <emmanuel@orijtech.com>
LZCNT is similar to BSR, but BSR(x) is undefined when x == 0, so using
LZCNT can avoid a special case for zero input. Except that case,
LZCNTQ(x) == 63-BSRQ(x) and LZCNTL(x) == 31-BSRL(x).
And according to https://www.agner.org/optimize/instruction_tables.pdf,
LZCNT instructions are much faster than BSR on AMD CPU.
name old time/op new time/op delta
LeadingZeros-8 0.91ns ± 1% 0.80ns ± 7% -11.68% (p=0.000 n=9+9)
LeadingZeros8-8 0.98ns ±15% 0.91ns ± 1% -7.34% (p=0.000 n=9+9)
LeadingZeros16-8 0.94ns ± 3% 0.92ns ± 2% -2.36% (p=0.001 n=10+10)
LeadingZeros32-8 0.89ns ± 1% 0.78ns ± 2% -12.49% (p=0.000 n=10+10)
LeadingZeros64-8 0.92ns ± 1% 0.78ns ± 1% -14.48% (p=0.000 n=10+10)
Change-Id: I125147fe3d6994a4cfe558432780408e9a27557a
Reviewed-on: https://go-review.googlesource.com/c/go/+/396794
Reviewed-by: Keith Randall <khr@golang.org>
Trust: Emmanuel Odeke <emmanuel@orijtech.com>
Run-TryBot: Emmanuel Odeke <emmanuel@orijtech.com>
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This CL add MOVBE support for 16-bit version, but MOVBEWload is
excluded because it does not satisfy zero extented.
For #51724
Change-Id: I3fadf20bcbb9b423f6355e6a1e340107e8e621ac
Reviewed-on: https://go-review.googlesource.com/c/go/+/396617
Reviewed-by: Keith Randall <khr@golang.org>
Run-TryBot: Keith Randall <khr@golang.org>
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Trust: Emmanuel Odeke <emmanuel@orijtech.com>
Add GenerateConsoleCtrlEvent call to internal syscall package.
Define ErrProcessDone while reviewing handling of os.Signal().
Update test to run for windows using the added call.
Fixes#42311Fixes#46354
Change-Id: I460955efc76c4febe04b612ac9a0670e62ba5ff3
Reviewed-on: https://go-review.googlesource.com/c/go/+/367495
Trust: Patrik Nyblom <pnyb@google.com>
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Change timeouts to be Is(context.DeadlineExceeded) and cancelation to
be Is(context.Canceled).
Fixes#51428
Change-Id: Ic580bd9da0f338e993fb79138875a78d99cc1a1d
Reviewed-on: https://go-review.googlesource.com/c/go/+/396877
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Reviewed-by: Tobias Klauser <tobias.klauser@gmail.com>
The test doesn't seem to be specific to Windows, so run in on all
platforms supporting symlinks.
Change-Id: I0bbae10040d86e313c285bee2c465df2135fd777
Reviewed-on: https://go-review.googlesource.com/c/go/+/397574
Trust: Tobias Klauser <tobias.klauser@gmail.com>
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Octal values over 255, like \400 or \777, are illegal. It wasn't clear if the expected behavior was a compile error, encoding the value as two characters, or if the value would be capped at 255.
This example explicitly shows that octal values over 255 are illegal.
Change-Id: I45d94680107029c5f083e5d434e6270cc5b258c1
GitHub-Last-Rev: f6bef0379f
GitHub-Pull-Request: golang/go#52111
Reviewed-on: https://go-review.googlesource.com/c/go/+/397555
Reviewed-by: Robert Griesemer <gri@golang.org>
Trust: Emmanuel Odeke <emmanuel@orijtech.com>
CL 337529 introduced upfront type-checking of constant shift operands,
to avoid converting their type to uint (per the spec). However, it
had an oversight in that the checks intended for non-constant operands
still ran after the explicit checking of constant operands. As a
result, there are at least two bugs:
- When GoVersion is < 1.13, we report spurious errors for untyped
constant shift operands.
- When the operand is an untyped float constant, we still convert to
uint (this was a known bug reported in #47410).
Looking at this now, it seems clear that we can avoid both of these bugs
by simply not running the additional checks in the case of a constant
operand. However, this should be considered with some care, as shifts
are notoriously tricky.
Updates #47410Fixes#52031
Change-Id: Ia489cc5470b92a8187d3de0423d05b309daf47bb
Reviewed-on: https://go-review.googlesource.com/c/go/+/396775
Reviewed-by: Robert Griesemer <gri@golang.org>
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Fixes#52022
Change-Id: I077fc062dfd02f79eb83713490efbe0bdc783d8b
Reviewed-on: https://go-review.googlesource.com/c/go/+/396616
Reviewed-by: Ian Lance Taylor <iant@golang.org>
Run-TryBot: Ian Lance Taylor <iant@golang.org>
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A future change to gofmt will rewrite
// Doc comment.
//
func f()
to
// Doc comment.
func f()
Apply that change preemptively to all doc comments.
For #51082.
Change-Id: I4023e16cfb0729b64a8590f071cd92f17343081d
Reviewed-on: https://go-review.googlesource.com/c/go/+/384259
Trust: Russ Cox <rsc@golang.org>
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For whatever reason (perhaps some tool does this), a handful of comments,
including some doc comments, have TODOs formatted like:
// TODO(name): Text here and
// more text aligned
// under first text.
In doc comments the second line turns into a <pre> block,
which is undesirable in this context.
Rewrite those to unindent, like this instead:
// TODO(name): Text here and
// more text aligned
// at left column.
For #51082.
Change-Id: Ibf5145659a61ebf9496f016752a709a7656d2d4b
Reviewed-on: https://go-review.googlesource.com/c/go/+/384258
Trust: Russ Cox <rsc@golang.org>
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A run of lines that are indented with any number of spaces or tabs
format as a <pre> block. This commit fixes various doc comments
that format badly according to that (standard) rule.
For example, consider:
// - List item.
// Second line.
// - Another item.
Because the - lines are unindented, this is actually two paragraphs
separated by a one-line <pre> block. This CL rewrites it to:
// - List item.
// Second line.
// - Another item.
Today, that will format as a single <pre> block.
In a future release, we hope to format it as a bulleted list.
Various other minor fixes as well, all in preparation for reformatting.
For #51082.
Change-Id: I95cf06040d4186830e571cd50148be3bf8daf189
Reviewed-on: https://go-review.googlesource.com/c/go/+/384257
Trust: Russ Cox <rsc@golang.org>
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(Temporarily, until the root cause of the test failure can be
diagnosed and fixed properly.)
For #52094
Change-Id: Iec69e162159f3f0a93135f742aac97cf82c1d96c
Reviewed-on: https://go-review.googlesource.com/c/go/+/397478
Trust: Bryan Mills <bcmills@google.com>
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Reviewed-by: Heschi Kreinick <heschi@google.com>
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Following CL 333529, update syso files for other architectures.
Windows/AMD64 is not updated, waiting for Than for C toolchain
updates.
OpenBSD/AMD64 is not updated as upstream LLVM TSAN removed OpenBSD
support (#52090).
Linux/PPC64LE is not updated due to a test failure. Will look into
it.
Change-Id: I46441fd3bb0f2c9e372d3e7fd43744ffafaf87a1
Reviewed-on: https://go-review.googlesource.com/c/go/+/397494
Trust: Cherry Mui <cherryyz@google.com>
Reviewed-by: Keith Randall <khr@golang.org>
The dwarf.Reader "SeekPC" method was not properly handling the case
of a truncated/empty unit (something that has header information
but an empty abbrev table and no DIEs). Add some guards to handle
this case.
Fixes#52045.
Change-Id: I978163eca3b610f7528058693b840931e90d3f63
Reviewed-on: https://go-review.googlesource.com/c/go/+/397054
Reviewed-by: Ian Lance Taylor <iant@golang.org>
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There was only a placeholder for DC instruction in the previous code.
gVisor needs this instruction. This CL completes its support.
This patch is a copy of CL 250858, contributed by Junchen Li(junchen.li@arm.com).
Co-authored-by: Junchen Li(junchen.li@arm.com)
CustomizedGitHooks: yes
Change-Id: I76098048a227fbd08aa42c4173b028f0ab4f66e8
Reviewed-on: https://go-review.googlesource.com/c/go/+/302851
Reviewed-by: Cherry Mui <cherryyz@google.com>
Trust: Eric Fang <eric.fang@arm.com>
Run-TryBot: Eric Fang <eric.fang@arm.com>
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There was only a placeholder for TLBI instruction in the previous code.
gVisor needs this instruction. This CL completes its support.
This patch is a copy of CL 250758, contributed by Junchen Li(junchen.li@arm.com).
Co-authored-by: Junchen Li(junchen.li@arm.com)
Change-Id: I69e893d2c1f75e227475de9e677548e14870f3cd
Reviewed-on: https://go-review.googlesource.com/c/go/+/302850
Reviewed-by: Cherry Mui <cherryyz@google.com>
Trust: Eric Fang <eric.fang@arm.com>
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When printing the usage message, recover panics when calling String
methods on reflect-constructed flag.Value zero values. Collect the panic
messages and include them at the end of the PrintDefaults output so that
the programmer knows to fix the panic.
Fixes#28667
Change-Id: Ic4378a5813a2e26f063d5580d678add65ece8f97
Reviewed-on: https://go-review.googlesource.com/c/go/+/396574
Run-TryBot: Andrew Gerrand <adg@golang.org>
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Reviewed-by: Ian Lance Taylor <iant@golang.org>
Auto-Submit: Ian Lance Taylor <iant@golang.org>
Trust: Andrew Gerrand <adg@golang.org>
The previous code treats some operands such as EQ, LT, etc. as special
registers. However, they are not. This CL adds a new AddrType TYPE_SPOPD
and a new class C_SPOPD to support this kind of special operands, and
refactors the relevant code.
This patch is a copy of CL 260861, contributed by Junchen Li(junchen.li@arm.com).
Co-authored-by: Junchen Li(junchen.li@arm.com)
Change-Id: I57b28da458ee3332f610602632e7eda03af435f5
Reviewed-on: https://go-review.googlesource.com/c/go/+/302849
Reviewed-by: Cherry Mui <cherryyz@google.com>
Trust: Eric Fang <eric.fang@arm.com>
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This CL adds regabi support needed for reflect and reimplement
of CL 360994, which is reverted.
Change-Id: I140673f09109dd9f72eff70aad64c0aa00d6857a
Reviewed-on: https://go-review.googlesource.com/c/go/+/396077
Reviewed-by: Cherry Mui <cherryyz@google.com>
Trust: mzh <mzh@golangcn.org>
Currently using the SYS instruction will report the "illegal combination"
error. This is because the assembler parser treats the register operand
as p.To, while optab defines it as p.Reg. This CL fixes this bug.
Change-Id: I57799a7c19934b0c62278948f4efaa41001593a4
Reviewed-on: https://go-review.googlesource.com/c/go/+/396796
Run-TryBot: Eric Fang <eric.fang@arm.com>
TryBot-Result: Gopher Robot <gobot@golang.org>
Reviewed-by: Cherry Mui <cherryyz@google.com>
Trust: Eric Fang <eric.fang@arm.com>
