The -G compiler option doesn't exist anymore. Update some variable
names and comments to reflect the new reality.
Change-Id: I227e9c59a01615c3a40c3869102e8045cb012980
Reviewed-on: https://go-review.googlesource.com/c/go/+/397254
Trust: Robert Griesemer <gri@golang.org>
Run-TryBot: Robert Griesemer <gri@golang.org>
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Reviewed-by: Matthew Dempsky <mdempsky@google.com>
This flag is not supported by clang, so remove it from the cgo cflags
when building for windows. It is clear that it was needed at some
point in the past, but it doesn't appear to be needed at the moment,
since all.bash passes on windows without it now.
Updates #35006.
Change-Id: Ib06c891f516654138e3363e06645cd187e46ce4e
Reviewed-on: https://go-review.googlesource.com/c/go/+/383838
Trust: Alex Brainman <alex.brainman@gmail.com>
Reviewed-by: Alex Brainman <alex.brainman@gmail.com>
Trust: Than McIntosh <thanm@google.com>
Run-TryBot: Than McIntosh <thanm@google.com>
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Add some rudimentary support to the PE file loader for handling
sections in COMDAT when reading host object files. This is needed
in order to link programs with support libraries that are of a more
modern vintage than GCC 5.X.
If a given section XYZ is in COMDAT, the symbol for that section will
be flagged, e.g. section 'Characteristics' field will have the
IMAGE_SCN_LNK_COMDAT bit set, and the symbol will be followed by an
"aux" symbol that includes the COMDAT handling strategy that the
linker needs to use.
This patch supports two COMDAT strategies (IMAGE_COMDAT_SELECT_ANY and
IMAGE_COMDAT_SELECT_SAME_SIZE); more work will have to be done in the
future to support other flavors if it turns out that they are needed.
Updates #35006.
Change-Id: I516e825c30ed3df94ba08323b8a24fb847e10c1a
Reviewed-on: https://go-review.googlesource.com/c/go/+/383835
Reviewed-by: Cherry Mui <cherryyz@google.com>
Trust: Than McIntosh <thanm@google.com>
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Add hooks to support reading of section definition symbol aux data
(including COMDAT information) from the aux symbols associated with
section definition symbols. The COFF symbol array made available by
"pe.File" includes entries for aux symbols, but doesn't expose their
structure (since it varies depending on the type of aux symbol). This
patch adds a function for returning a specific class of aux symbol
("type 5") that immediately follows a COFF symbol corresponding to a
section definition.
Updates #35006.
Updates #51868.
Change-Id: I21fcc057150f7a3c64f01a5961aabca0fa43399e
Reviewed-on: https://go-review.googlesource.com/c/go/+/394534
Reviewed-by: Alex Brainman <alex.brainman@gmail.com>
Reviewed-by: Cherry Mui <cherryyz@google.com>
Trust: Alex Brainman <alex.brainman@gmail.com>
Trust: Than McIntosh <thanm@google.com>
Run-TryBot: Than McIntosh <thanm@google.com>
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When doing an internal link on Windows, it's possible to see
unresolved references to the symbols "__CTOR_LIST__" and/or
"__DTOR_LIST__" (which are needed in some circumstances). If these are
still unresolved at the point where we're done reading host objects,
then synthesize dummy versions of them.
Updates #35006.
Change-Id: I408bf18499bba05752710cf5a41621123bd84a3b
Reviewed-on: https://go-review.googlesource.com/c/go/+/383836
Reviewed-by: Cherry Mui <cherryyz@google.com>
Trust: Than McIntosh <thanm@google.com>
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The spec says "In a union, a term cannot be a type parameter,...",
but it's really the type in a term that cannot be a type parameter.
(Also, for the spec's purposes, a single term is still a union.)
This CL changes the current error message from:
"cannot use type parameter in typeset"
to one of two messages:
"term cannot be a type parameter" (for term of form P)
"type in term ~P cannot be a type parameter (for term of form ~P)
which are more specific and match the spec more closely.
Fixes#50420.
Change-Id: Id48503efc8416cabc03d5c40d8e64d5b3a7f078e
Reviewed-on: https://go-review.googlesource.com/c/go/+/396874
Trust: Robert Griesemer <gri@golang.org>
Reviewed-by: Ian Lance Taylor <iant@golang.org>
No test because we could add an infinite number of tests of bogus data.
For #47653Fixes#52035
Change-Id: Iec7e2fe23f2dd1cf14bad2475422f243f51028f5
Reviewed-on: https://go-review.googlesource.com/c/go/+/396880
Trust: Ian Lance Taylor <iant@golang.org>
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Reviewed-by: Tobias Klauser <tobias.klauser@gmail.com>
Reviewed-by: Than McIntosh <thanm@google.com>
For Windows internal linking with CGO, when using more modern
LLVM-based compilers, we may need to read in the object file "crt2.o"
so as to have a definition of "atexit" (for example when linking the
runtime/cgo test), and we also need to allow for the possibility that
a given host archive might have to be looked at more than once. The goal
here is to get all.bash working on Windows when using an up to date
mingw C compiler (including those based on clang + LLD).
This patch also adds a new "hostObject" helper routine, similar to
"hostArchive" but specific to individual object files. There is also a
change to hostArchive to modify the pseudo-package name assigned when
reading archive elements: up until this point, a package name of
"libgcc" was used (even when reading a host archive like
"libmingex.a"), which led to very confusing errors messages if symbols
were missing or there were duplicate definitions.
Updates #35006.
Change-Id: I19c17dea9cfffa9e79030fc23064c7c63a612097
Reviewed-on: https://go-review.googlesource.com/c/go/+/382838
Reviewed-by: Cherry Mui <cherryyz@google.com>
Trust: Than McIntosh <thanm@google.com>
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The existing PE file loader has a special case for the symbol
"__acrt_iob_func", whose hosting object file contains both an actual
definition and also a DLL import symbol "__imp___acrt_iob_func". The
normal way of handling __imp_XXX symbols is for the host object loader
to rename them to their intended target (e.g. "XXX") however if the
target is also defined locally, you get a duplicate definition.
This patch generalizes the def/import symbol detection to apply to all
symbols in the object file being loaded (not just a hard-coded set),
since it will be needed when reading things like crt2.o.
Updates #35006.
Change-Id: I0d0607c27bb7d5f3cb415bc95db816aa13746ba2
Reviewed-on: https://go-review.googlesource.com/c/go/+/382837
Reviewed-by: Cherry Mui <cherryyz@google.com>
Trust: Than McIntosh <thanm@google.com>
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Rewrite the helper "readpesym()" and the code that calls it to pass in
most of the values it needs via a state object (the signature was
getting a bit too busy/lengthy). No change in functionality, this is
just a refactor.
Updates #35006.
Change-Id: I6153ee3a9be3eb885694323ae8e07ec4c8eed646
Reviewed-on: https://go-review.googlesource.com/c/go/+/382836
Reviewed-by: Cherry Mui <cherryyz@google.com>
Trust: Than McIntosh <thanm@google.com>
Run-TryBot: Than McIntosh <thanm@google.com>
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Dialer.DialContext no longer performs a redundant check on the length
of the fallback slice, because dialParallel already handles the
situation where the fallback slice is empty or nil.
Change-Id: Ibb16f4813fc55dec2939c54c10e665ff35bfe163
Reviewed-on: https://go-review.googlesource.com/c/go/+/387795
Run-TryBot: Tobias Klauser <tobias.klauser@gmail.com>
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Reviewed-by: Ian Lance Taylor <iant@golang.org>
Reviewed-by: Tobias Klauser <tobias.klauser@gmail.com>
Updates #29770Fixes#51872
Change-Id: Icee660c8cc6c69a79ad11e818dd8ab40a344e800
Reviewed-on: https://go-review.googlesource.com/c/go/+/394676
Reviewed-by: Daniel Martí <mvdan@mvdan.cc>
Trust: Daniel Martí <mvdan@mvdan.cc>
Trust: Ian Lance Taylor <iant@golang.org>
After CL 24430, reflect.DeepEqual no longer returns true when comparing
a *Rat built with (*Rat).SetString("0") with one built with
(*Rat).SetInt64(0).
These should be equivalent, but because (*Rat).SetString does not call
norm() when returning the zero value, the result of reflect.DeepEqual
will be false.
One could suggest that developers should use (*Rat).Cmp instead
of relying on reflect.DeepEqual, but if a (*Rat) is part of a
larger struct that is being compared, this can be cumbersome.
This is fixed by calling z.norm() when returning zero in SetString.
Fixes#50944
Change-Id: Ib84ae975bf82fe02d1203aa9668a01960c0fd59d
Reviewed-on: https://go-review.googlesource.com/c/go/+/364434
Reviewed-by: Katie Hockman <katie@golang.org>
Trust: Katie Hockman <katie@golang.org>
Trust: Ian Lance Taylor <iant@golang.org>
So that `strings.SplitN("", "T", int(144115188075855872))` does not panic.
Change-Id: Iea00417e61780bcaf0fee02fa2b18026d89bc545
GitHub-Last-Rev: d1f45b44a8
GitHub-Pull-Request: golang/go#51755
Reviewed-on: https://go-review.googlesource.com/c/go/+/393654
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Trust: Tobias Klauser <tobias.klauser@gmail.com>
__SIZE_TYPE__ is a GCC type which has been superseded
by size_t -define in stddef.h- since ISO C99.
cmd/cgo already uses size_t in many places, but still generates several
files using __SIZE_TYPES__, most notably the _cgo_export.h.
This change replaces all __SIZE_TYPES__ occurrences with size_t.
Updates #36233
Change-Id: Id8a99b5d7763caab9333eab9b585e78249a37415
Reviewed-on: https://go-review.googlesource.com/c/go/+/379474
Run-TryBot: Tobias Klauser <tobias.klauser@gmail.com>
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Reviewed-by: Tobias Klauser <tobias.klauser@gmail.com>
Adding comments to these functions help IDE tooling to display
meaningful documentation, p.e. on hover.
Tested with gopls and vscode.
Updates #51134
Change-Id: Ie956f7cf192af0e828def4a141783f3a2589f77d
Reviewed-on: https://go-review.googlesource.com/c/go/+/386414
Run-TryBot: Ian Lance Taylor <iant@golang.org>
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Reviewed-by: Ian Lance Taylor <iant@golang.org>
Reviewed-by: Russ Cox <rsc@golang.org>
Run-TryBot: Russ Cox <rsc@golang.org>
Auto-Submit: Russ Cox <rsc@golang.org>
Be clear that the type of a term (not the term itself, which may
be of the form ~P) cannot be a type parameter.
For #50420.
Change-Id: I388d57be0618393d7ebe2c74ec04c1ebe3f33f7d
Reviewed-on: https://go-review.googlesource.com/c/go/+/396915
Trust: Robert Griesemer <gri@golang.org>
Run-TryBot: Robert Griesemer <gri@golang.org>
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In preparation to make html/template and text/template use a
single generics package, this change make FuncMap a type alias
of text/template.FuncMap.
Fixes#46121
Change-Id: I5e94cc8fdf4fe029ff223992b5cdfe79f9c098ab
Reviewed-on: https://go-review.googlesource.com/c/go/+/389156
Trust: Emmanuel Odeke <emmanuel@orijtech.com>
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Reviewed-by: Ian Lance Taylor <iant@golang.org>
If a package could not be imported for whatever reason, the type checker
creates fake package with which it continues for more tolerant type
checking.
Do not report an "imported but not used" error in that case.
Clarify a few comments along the way.
Fixes#43109.
Change-Id: Ifeec0daa688fbf666412dc9176ff1522d02a23ef
Reviewed-on: https://go-review.googlesource.com/c/go/+/396875
Trust: Robert Griesemer <gri@golang.org>
Reviewed-by: Ian Lance Taylor <iant@golang.org>
For syntax errors in various (syntactic) lists, instead of reporting
a set of "expected" tokens (which may be incomplete), provide context
and mention "possibly missing" tokens. The result is a friendlier and
more accurate error message.
Fixes#49205.
Change-Id: I38ae7bf62febfe790075e62deb33ec8c17d64476
Reviewed-on: https://go-review.googlesource.com/c/go/+/396914
Trust: Robert Griesemer <gri@golang.org>
Reviewed-by: Ian Lance Taylor <iant@golang.org>
If there is a go.work file in src, "go test cmd/internal/moddeps"
and "go test cmd/go" fail. Setting GOWORK=off in various command
invocations avoids this problem.
Change-Id: I89fd021ff94998ceda6a3bbc4c3743f08558f98b
Reviewed-on: https://go-review.googlesource.com/c/go/+/396777
Trust: Bryan Mills <bcmills@google.com>
Reviewed-by: Bryan Mills <bcmills@google.com>
Trust: David Chase <drchase@google.com>
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(Also rename it to no longer describe itself in terms of sleeping.)
This test previously relied on the scheduler to wake up a goroutine to
write the "--- PASS: TestFast" line within 100ms of TestFast actually
finishing. On some platforms, even that long a delay is apparently too
short.
Instead, we now use a deterministic "=== RUN" line instead of a
timing-dependent "--- PASS" line to interrupt the output.
Fixes#51221
Change-Id: I3997640fb7577e29e3866a82d4d49a3a70a4b033
Reviewed-on: https://go-review.googlesource.com/c/go/+/386154
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findgoversion has some logic from before the go1 release that only
has effect when on a release branch without a VERSION file.
Starting with release-branch.go1 and the go1 tag a decade ago,
release branch have always had a VERSION file checked in.
(The commit that adds/updates the VERSION file is what is tagged.)
Since we have no need to support old branches like release-branch.r60,
and such scenarios don't come up in modern Go, delete it to simplify
this code a bit. Should the VERSION file situation change, we'd need
to rework this code anyway.
Fixes#42345.
Change-Id: I13f27babd37aaa5cec30fefde1b8e6ccce816461
Reviewed-on: https://go-review.googlesource.com/c/go/+/393954
Trust: Daniel Martí <mvdan@mvdan.cc>
Trust: Dmitri Shuralyov <dmitshur@golang.org>
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Auto-Submit: Dmitri Shuralyov <dmitshur@golang.org>
Reviewed-by: Ian Lance Taylor <iant@golang.org>
When parsing method declarations in an interface, the parser has
for historic reasons gracefully handled a list of method names with
a single (common) signature, and then reported an error. For example
interface {
m1, m2, m3 (x int)
}
This code originally came from the very first parser for Go which
initially permitted such declarations (or at least assumed that
people would write such declarations). Nobody is doing this at this
point, so there's no need for being extra careful here. Remove the
respective code and adjust the corresponding test.
Change-Id: If6f9b398bbc9e425dcd4328a80d8bf77c37fe8b6
Reviewed-on: https://go-review.googlesource.com/c/go/+/396654
Trust: Robert Griesemer <gri@golang.org>
Reviewed-by: Ian Lance Taylor <iant@golang.org>
Generics have landed; we cannot revert the syntax anymore. Remove
ability to choose between non-generic and generic code. Also remove
mode to enable method type parameters. Adjust code accordingly.
Also remove a couple of TODOs that are not relevant anymore.
Remove tests from types2 which were focussed on method type parameters,
make types2 and go/types tests match up where there was a difference in
this regard.
Change-Id: I989bdcb19eea7414214af739187fa013a044295d
Reviewed-on: https://go-review.googlesource.com/c/go/+/396634
Trust: Robert Griesemer <gri@golang.org>
Reviewed-by: Ian Lance Taylor <iant@golang.org>
- Use .go suffix for test files as go fmt doesn't descend into testdata
directories.
- Move test files from testdata/go2 into testdata directory.
- Delete some test files that contained type-checker ERROR markers that
were ignored by the TestParseGo2 test but would be considered by the
TestSyntaxErrors test if the files were moved unchanged into the
testdata directory.
- Remove one (type checker) ERROR marker in testdata/slices.go to make
it pass the syntax error tests.
- Delete TestParseGo2 test. There's enough coverage with the existing
TestSyntaxErrors test.
- Add missing copyright notice to testdata/chans.go and gofmt the file.
Change-Id: I449913fe1bd2119987ba33f7152e5e4ba5f3fe31
Reviewed-on: https://go-review.googlesource.com/c/go/+/396518
Trust: Robert Griesemer <gri@golang.org>
Reviewed-by: Ian Lance Taylor <iant@golang.org>
Documentation around the use of types.Context is unclear about whether
contexts guarantee deduplication of identical instances. Add explicit
disclaimers that this is not the case.
Fixesgolang/go#51680
Change-Id: I6651587315d3cbf9e8d70a69d3e2ec5cedd00da5
Reviewed-on: https://go-review.googlesource.com/c/go/+/396536
Trust: Robert Findley <rfindley@google.com>
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CL 367755 added soleComponent for handling 1-byte type interface conversion.
This implementation must be kept in sync with Type.SoleComponent, but it
does not. When seeing a blank field in struct, we must continue looking
at the field type to find sole component, if any. The current code just
terminate immediately, which causes wrong sole component type returned.
Fixes#52020
Change-Id: I4f506fe094fa7c5532de23467a4f9139476bb0a4
Reviewed-on: https://go-review.googlesource.com/c/go/+/396614
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After CL 281543, checkassign do not have to check assignment in range
loop anymore, thus its first parameter is un-used.
Change-Id: Idbc46fcb81c3dd5edc87308d228c1a15ca5faf7e
Reviewed-on: https://go-review.googlesource.com/c/go/+/396615
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RFC 1950 section 2.2 "Data format" says "CINFO (Compression info)... For
CM = 8... Values of CINFO above 7 are not allowed".
Change-Id: Ibbc1213125c7dc045f09901ee7746660e90b5fcd
Reviewed-on: https://go-review.googlesource.com/c/go/+/395734
Reviewed-by: Matthew Dempsky <mdempsky@google.com>
Trust: Nigel Tao <nigeltao@golang.org>
There are several of places that save and restore the C callee-saved registers,
the operation is the same everywhere, so this CL defines several macros
to do this, which will help reduce code redundancy and unify the operation.
This CL also replaced consecutive MOVD instructions with STP and LDP instructions
in several places where these macros do not apply.
Change-Id: I815f39fe484a9ab9b6bd157dfcbc8ad99c1420fe
Reviewed-on: https://go-review.googlesource.com/c/go/+/374397
Trust: Eric Fang <eric.fang@arm.com>
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The Addr should be zero if SHF_ALLOC is not set.
Update #51939
Change-Id: I030f6243d05efabe6b9ebf558e9c0201f7922d23
Reviewed-on: https://go-review.googlesource.com/c/go/+/395919
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This CL adds
- spill functions used by runtime
- ABIInternal to functions
Adding new stubs_riscv64 file to eliminate vet issues while compiling.
Change-Id: I2a9f6088a1cd2d9708f26b2d97895b4e5f9f87e9
Reviewed-on: https://go-review.googlesource.com/c/go/+/360296
Trust: mzh <mzh@golangcn.org>
Reviewed-by: Cherry Mui <cherryyz@google.com>
Use the 1.17 compiler error message together with the receiver base type.
Also, simplify and flatten the receive testing logic for clarity.
Change-Id: I71e58f261900dd7a85d2eb89a310c36b68d1b0b0
Reviewed-on: https://go-review.googlesource.com/c/go/+/396298
Trust: Robert Griesemer <gri@golang.org>
Reviewed-by: Robert Findley <rfindley@google.com>
These are the opcodes required to lower math/bits.Add64 and
math/bits.Sub64 directly into ssa form. Likewise, opcodes which
clobber CA are marked.
This does not alter code generation. It prepares for future changes
to support scheduling carry chaining ops more effectively, and then
changes to lower into PPC64 opcodes.
Change-Id: I2723deee4a98b3c365f691857512df53280ae40f
Reviewed-on: https://go-review.googlesource.com/c/go/+/394594
Trust: Keith Randall <khr@golang.org>
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If a GC related task preempts between hitting the main.main breakpoint
and stepping, the test program may halt forever waiting on a GC
operation. This happens if gdb is configured to halt other threads
while executing a step.
Configure gdb to continue running all threads during a step by
setting the scheduler-locking option to off.
Fixes#49852
Change-Id: Iacc9732cbd23526bde0a295e6fa8a0d90f733f59
Reviewed-on: https://go-review.googlesource.com/c/go/+/370775
Reviewed-by: Michael Knyszek <mknyszek@google.com>
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This is the first step towards decomposing aggregate operations
which create or consume the CA bit of the XER.
This helps optimize the canned sequence of Add64Carry (and
Sub64Borrow if it were implemented similarly) by minimizing
extraneous operations related to loading the CA bit,
reloading CA in chained operations, or extracting it when
unused.
Likewise, mark the operations which clobber CA.
Change-Id: I33e6dd2654a8cc39fcdbb9690a495f03558cdc97
Reviewed-on: https://go-review.googlesource.com/c/go/+/346869
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Use the 1.17 compiler error message.
Change-Id: Ic62de5bfc9681674069934afc590f5840729f8e2
Reviewed-on: https://go-review.googlesource.com/c/go/+/396297
Trust: Robert Griesemer <gri@golang.org>
Reviewed-by: Robert Findley <rfindley@google.com>
Use the 1.17 compiler error message, sans "array" prefix.
Change-Id: I0e70781c5ff02dca30a2004ab4d0ea82b0849eae
Reviewed-on: https://go-review.googlesource.com/c/go/+/396296
Trust: Robert Griesemer <gri@golang.org>
Reviewed-by: Robert Findley <rfindley@google.com>
net.ParseCIDR already rejects input in the form of 2001:db8::%a/32, but
netip.ParsePrefix previously accepted the input and silently dropped the
zone. Make the two consistent by always returning an error if an IPv6
zone is present in CIDR input for ParsePrefix.
Fixes#51899.
Change-Id: Iee7d8d4a5161e0b54a4ee1bd68b02c1a287ff399
Reviewed-on: https://go-review.googlesource.com/c/go/+/396299
Trust: Matt Layher <mdlayher@gmail.com>
Run-TryBot: Matt Layher <mdlayher@gmail.com>
TryBot-Result: Gopher Robot <gobot@golang.org>
Reviewed-by: Damien Neil <dneil@google.com>
Trust: Damien Neil <dneil@google.com>
For #51572
Change-Id: Ib27be79379c8b3f72e29365b58067d7ee1919e52
Reviewed-on: https://go-review.googlesource.com/c/go/+/396295
Trust: Ian Lance Taylor <iant@golang.org>
Reviewed-by: Dmitri Shuralyov <dmitshur@golang.org>
This updates the cmd/compile/internal/importer to natively support the
"final" unified IR export format. This is really just for unit tests
and symmetry with go/internal/gcimporter though, since
cmd/compile/internal/noder has its own types2.Importer.
Change-Id: I52fbb6134dbc0a903d62c1b04f95d33bd29e0414
Reviewed-on: https://go-review.googlesource.com/c/go/+/388617
Run-TryBot: Matthew Dempsky <mdempsky@google.com>
Reviewed-by: Robert Griesemer <gri@golang.org>
TryBot-Result: Gopher Robot <gobot@golang.org>
Trust: Matthew Dempsky <mdempsky@google.com>
The new "unix" build tag matches any Unix or Unix-like system.
This is only recognized on go:build lines, not in file names.
For #20322Fixes#51572
Change-Id: I3a991f9e69353b25e259bc6462709cdcd83640fb
Reviewed-on: https://go-review.googlesource.com/c/go/+/389934
Trust: Ian Lance Taylor <iant@golang.org>
Run-TryBot: Ian Lance Taylor <iant@golang.org>
Reviewed-by: Rob Pike <r@golang.org>
TryBot-Result: Gopher Robot <gobot@golang.org>
Keep returning nil for the cases where we historically returned nil,
even though this is slightly different for TrimLeft and TrimRight.
Fixes#51793
Change-Id: Ifbdfc6b09d52b8e063cfe6341019f9b2eb8b70e9
Reviewed-on: https://go-review.googlesource.com/c/go/+/393876
Trust: Ian Lance Taylor <iant@golang.org>
Run-TryBot: Ian Lance Taylor <iant@golang.org>
TryBot-Result: Gopher Robot <gobot@golang.org>
Reviewed-by: Keith Randall <khr@golang.org>
