Add a new test TestImportTypeparamTests that compiles and imports
packages contained in test/typeparam, and compares the resulting package
scope with the scope produced by type-checking directly.
In the process, fix a bug in go/types affecting embedded instances with
more than one type argument. This was uncovered by smoketest.go.
To enable this new test it was easiest to move gcimporter_test.go to an
external test, which required copying the pkgExts variable.
Fixes#48101
Change-Id: Ie4d981bf463e886a8d141809805d184dbbf64607
Reviewed-on: https://go-review.googlesource.com/c/go/+/347070
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Port the necessary logic to go/internal/gcimporter from
cmd/compile/internal/importer/iimport.go to support type parameters.
This is a partial port of several compiler CLs: at least CL 319930,
CL 322609, CL 323029, CL 338192, CL 340251, and CL 340989. Because these
ports were not interleaved with the corresponding go/types API changes,
it is easier to just take the latest importer logic.
Notably, the equivalent of types2.AsTypeParam is not used. It should be
unnecessary.
Updates #48101
Change-Id: I938bd8debc3f6a68a3ad8d44c61ef9c5038be7e5
Reviewed-on: https://go-review.googlesource.com/c/go/+/347069
Trust: Robert Findley <rfindley@google.com>
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Usually, fixalloc is used to allocate small, persistent and reuseable
objects. The size is typically between range [sizeof(mlink), _FixAllocChunk].
It's rare for being out of the range. But if it did happen, we got a
hard-to-discover memory corruption. This commit prevents that situation by limiting object's size.
Change-Id: If6ef8b0831596464e0f55d09f79094b79ae08c66
GitHub-Last-Rev: cb8b1b01bb
GitHub-Pull-Request: golang/go#47395
Reviewed-on: https://go-review.googlesource.com/c/go/+/337429
Reviewed-by: Austin Clements <austin@google.com>
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ORANGE is still not inlineable now. This CL is correct only when the range statement is statically dead, and thus not counted during the inline budget check.
If we support range statements in inlining closures in the future, may require additional processing.
Fixes#48033.
Change-Id: I28f5755c28cfa27e41daef9eff2ae332059909bb
Reviewed-on: https://go-review.googlesource.com/c/go/+/345436
Trust: Cherry Mui <cherryyz@google.com>
Reviewed-by: Keith Randall <khr@golang.org>
The minimum required Linux kernel version for Go 1.18 will be changed to
2.6.32, see #45964. The current minimum required version is 2.6.23 and
accept4 was added in 2.6.28, so the fallback to accept in Accept on
Linux can be removed.
For #45964
Change-Id: I78fc4e5b58417bbc540912c9dbf1b1b3db888fea
Reviewed-on: https://go-review.googlesource.com/c/go/+/346849
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The minimum required Linux kernel version for Go 1.18 will be changed to
2.6.32, see #45964. The current minimum required version is 2.6.23 and
utimensat was added in 2.6.22, so the fallback isn't even necessary for
the current minimum supported version. Remove the fallback to utimes.
For #45964
Change-Id: I5536f6ea7a34944dd9165f1533c10692171fb0c5
Reviewed-on: https://go-review.googlesource.com/c/go/+/346790
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The minimum required Linux kernel version for Go 1.18 will be changed to
2.6.32, see #45964. The pipe2 syscall was added in 2.6.27, so the
fallback to use the pipe syscall in os.Pipe and syscall.forkExecPipe on
Linux can be removed.
For #45964
Change-Id: I033a534f2b39e9bafc9980c9ce980e92f1e3a136
Reviewed-on: https://go-review.googlesource.com/c/go/+/346789
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When setting an invalid GOROOT_BOOTSTRAP, make.bash try looking at env to
find a valid go command and use that GOROOT instead. It's better if the
script emit a warning, instead of silently change the GOROOT_BOOTSTRAP.
Change-Id: I6038093d5e8c072da27bcae44b125f6774f809a7
Reviewed-on: https://go-review.googlesource.com/c/go/+/326030
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Currently, if a test explicitly specify -G flag, if that flag conflict
with compiler default -G flag, the test will be skipped. That's the
reason CL 346469 haven't fixed the unified IR stuff, but still make the
unified builder passed.
This CL makes run.go always run the test in unified IR mode, regardless
of the explicit -G flag specified.
Updates #48094
Change-Id: I959ecaff6aca07844f0ffcf36caa60cf0747e8ce
Reviewed-on: https://go-review.googlesource.com/c/go/+/347271
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Followup todo in CL 346769.
Change-Id: I6c870014523426d65d135da999f97a818a997237
Reviewed-on: https://go-review.googlesource.com/c/go/+/347270
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CL 346469 added support for unsafe.Sizeof and friends to operate on
generic parameters for compiler importer/exporter. This CL adds support
for unified IR.
Updates #48094
Change-Id: I63af1a7c3478f59b03ecc23229ac2254d3457868
Reviewed-on: https://go-review.googlesource.com/c/go/+/346769
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Add (temporary) syntax.AllowTypeLists mode to control the
acceptance of type lists; the compiler doesn't set it,
but existing syntax and types2 tests do so that the code
remains exercised while it exists.
Adjust various tests to use the type set notation.
Change-Id: I798e607912552db6bfe38a7cd4324b74c6bf4d95
Reviewed-on: https://go-review.googlesource.com/c/go/+/347249
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When type-checking expressions, detection of uninstantiated generic
functions and types was somewhat ad-hoc.
Add an extra parameter "allowGenerics" to rawExpr. If not set, the
result operand cannot be generic.
The only place where rawExpr is called with allowGenerics != false
is from exprOrType, which passes an allowGenerics parameter through.
The only place where exprOrType is called with allowGenerics == true
is when handling index expressions and calls. Make sure that we only
accept generic operands where expected, and check the other branches.
As a result, a recently added varType call (CL 345970) can be removed
again.
This also fixes a bug where an error for a conversion to generic
type was reported after the conversion (i.e., with the converted
value, rather than the generic type). Added a test case for that.
For #48048.
Change-Id: I8576326f5fcfb58d78b3ce8572068aa32e66c568
Reviewed-on: https://go-review.googlesource.com/c/go/+/346471
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For #42777.
Change-Id: I963db8c666e8bcf0fc4f390b359db6408a0f792b
Reviewed-on: https://go-review.googlesource.com/c/go/+/347010
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This CL skips reading of imported function bodies except from the
local package or for inlining. Previously, we wasted a bunch of CPU
and memory by reading in normal function bodies for all imported
functions and methods.
Change-Id: I0b3df3f4a3e2819117dac11a1f9e4526288c14d8
Reviewed-on: https://go-review.googlesource.com/c/go/+/347030
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This CL delays unified IR's wrapper generation to after inlining.
Change-Id: Idfe496663489d6b797a647eb17200c6322d0334a
Reviewed-on: https://go-review.googlesource.com/c/go/+/347029
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Change-Id: Ibc23b43dc9a7fabb27d7991977b283459f3deae3
Reviewed-on: https://go-review.googlesource.com/c/go/+/333009
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Add support to the assembler for F[N]M{ADD,SUB}[SD] instructions.
Argument order is:
OP RS1, RS2, RS3, RD
Also, add support for the FMA intrinsic to the compiler. Automatic
FMA matching is left to a future CL.
Change-Id: I47166c7393b2ab6bfc2e42aa8c1a8997c3a071b3
Reviewed-on: https://go-review.googlesource.com/c/go/+/293030
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In -G=3 mode, irgen use its own generated IR, which is mis-handling of
bodyless function and declared function with //go:noescape pragma.
Fix this by adopting the same logic in noder.funcDecl, which minor
change in linkname detection.
Fixes#48097
Change-Id: Ibef921c1f75e071ca61685e0cb4543f2ee5efc7f
Reviewed-on: https://go-review.googlesource.com/c/go/+/346470
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This CL splits the creation of the "init" function responsible for
executing package-scope variable initialization statemens from the
creation of the "inittask" record that tells the runtime how to
sequence all program-wide package initialization.
Longer term, this is desirable because sorting variable initialization
is already handled by types2 (with Info.InitOrder), so we might as
well reuse that.
As a more immediate impetus, for unified IR, I want to defer method
wrapper generation until after inlining (to know which wrappers are
needed). But the staticinit optimization used to decide whether to
emit the inittask calls into reflectdata, which in turn tries to
generate its own method wrappers. So separating the work allows to
create the "init" function early and then emit "inittask" after
inlining is done.
Change-Id: Ice1d421f92feecaaeafdf7da6b9647c0f27e3571
Reviewed-on: https://go-review.googlesource.com/c/go/+/346629
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Improve the code which fixes up conditional branches which exceed the
range of a single instruction by inserting one extra jump when
possible instead of two.
Change-Id: Ib0eb5b0f47f7d0e0ccd55471307a5f73fbda88a9
Reviewed-on: https://go-review.googlesource.com/c/go/+/342930
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If the TypeParam has all the methods of an interface, allow conversions from TypeParam to interface
Fixes#47708
Change-Id: I40a82a31f6ea9354130dbe3bcfc83537094bf12c
Reviewed-on: https://go-review.googlesource.com/c/go/+/342509
Reviewed-by: Dan Scales <danscales@google.com>
Reviewed-by: Robert Griesemer <gri@golang.org>
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Rather than jumping and branching to a label (the offset for which changes
when instructions are added or removed), use PC-relative offsets. This
reduces unnecessary churn in the instruction encodings.
Change-Id: I6816ce939eeabdf828039f59f4f29260eb1ac8da
Reviewed-on: https://go-review.googlesource.com/c/go/+/344449
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Add more error tests for riscv64 assembly. Also avoid a panic when one of
these error conditions is hit.
Change-Id: If5d913894facbd67f7d014eab745da77c8c66ab0
Reviewed-on: https://go-review.googlesource.com/c/go/+/344228
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Otherwise the modifications of transformAssign are dropped on the floor.
Change-Id: Id40782564952ed53f9ade1dba4e85290c8522abc
Reviewed-on: https://go-review.googlesource.com/c/go/+/346590
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Missing case types.TUNSAFEPTR in parameterizedBy().
Also realized there was the same missing case in the type substituter
(*Tsubster).Typ().
Fixes#48103
Change-Id: If71f1a6ef80932f0e2120d4c18b39a30189fd8fe
Reviewed-on: https://go-review.googlesource.com/c/go/+/346669
Reviewed-by: Keith Randall <khr@golang.org>
Trust: Dan Scales <danscales@google.com>
CL 309831 fixed importing of method expressions, by re-using the same
code already have for ODOTMETH. But that code does not work with
embedded field.
To fix this, we need to calculate all methods of the receiver base type
of method expression, before looking up the selection.
Fixes#48088
Change-Id: Ia244d36a3ed0f989735eb57becdfa70a81912f57
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This is a port of CL 346294 to go/types.
Change-Id: Ib70541a92e352c8df8123c8b82bb4eeedce3b89f
Reviewed-on: https://go-review.googlesource.com/c/go/+/346560
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This is a port of CL 346291 to go/types.
Change-Id: I8f864aca5cdb4037bc27a81cde1597430b9a48db
Reviewed-on: https://go-review.googlesource.com/c/go/+/346559
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This is a port of CL 346009 to go/types. An unnecessary break statement
was removed from both the port and types2.
Change-Id: I2cc1328a61100d4b01a2d26ac7bac9044440d579
Reviewed-on: https://go-review.googlesource.com/c/go/+/346558
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This is a port of CL 345929 to go/types. It is also a step toward making
instantiation concurrency-safe.
Also fix some whitespace in instantiate.go.
Updates #47910
Change-Id: Icdeb227cb83eee15da6db90daab294c8c55db601
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This is a port of CL 345791 to go/types.
Change-Id: I673c22ad8b668f07aae4117555b1c0efb273fb78
Reviewed-on: https://go-review.googlesource.com/c/go/+/346556
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This is a port of CL 345891 to go/types.
Change-Id: I5abcb9c9c5110923a743f0c47d9b34b2baabab68
Reviewed-on: https://go-review.googlesource.com/c/go/+/346555
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This is a port of CL 345890 to go/types.
Change-Id: I98162deaf044b2194b05dc51e6948e227216fc4d
Reviewed-on: https://go-review.googlesource.com/c/go/+/346554
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This is a port of CL 345472 to go/types.
Change-Id: I0e2a88909ecebe9dea3325244153f5c74e4c3ce7
Reviewed-on: https://go-review.googlesource.com/c/go/+/346553
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This is a port of CL 345471 to go/types.
Change-Id: Icad5fb8b3b4375182f420a51c80607b88696561e
Reviewed-on: https://go-review.googlesource.com/c/go/+/346552
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This is a port of CL 345177 to go/types.
Change-Id: I79fcfbf5b28e9a7a2e66c81bc831e164a8da8bbb
Reviewed-on: https://go-review.googlesource.com/c/go/+/346551
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This is a port of CL 345176 to go/types, though not all TODOs were
present in go/types.
A TODO that still needs to be resolved was added back to types2.
Change-Id: Icf79483c92d0bc1248de772c7044620f0f0a5c58
Reviewed-on: https://go-review.googlesource.com/c/go/+/346550
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type A [0]int
var a A
x := a[i]
Use the zero value for x instead of the "impossible" value. That lets
us at least compile code like this with -B, even though it can't
possibly run correctly.
Fixes#48092
Change-Id: Idad5cfab49e05f375c069b05addceed68a15299f
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Use the position of the actual conversion operation instead of base.Pos.
Fixes#47880
Change-Id: I56adc134e09cb7fd625adc0a847c1a6b3e254b1a
Reviewed-on: https://go-review.googlesource.com/c/go/+/345095
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These helper functions are no longer necessary, now that type parameters
are enabled; we can access type parameters directly.
When considering the existence or non-existence of type parameters, we
can either check whether node.TParams != nil, or whether
node.TParams.NumFields() > 0. The heuristic I'm using for deciding
between these checks is as follows:
- For data access, just check node.TParams != nil.
- For producing errors if type parameters exist, check NumFields() > 0.
Change-Id: I6597536898e975564e9e8bf6a3a91bc798e0f110
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This is a port of CL 344873 to go/types.
Change-Id: Iad41d6de166214178adf2123ac05023895f5208b
Reviewed-on: https://go-review.googlesource.com/c/go/+/346435
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This is a port of CL 344872 to go/types.
Change-Id: Id794f1fc3b86779ee32dbe5e656ffc747d44c3e2
Reviewed-on: https://go-review.googlesource.com/c/go/+/346434
Trust: Robert Findley <rfindley@google.com>
Run-TryBot: Robert Findley <rfindley@google.com>
TryBot-Result: Go Bot <gobot@golang.org>
Reviewed-by: Robert Griesemer <gri@golang.org>
This is a port of CL 344871 to go/types. Unlike the compiler, go/parser
is already always producing 1.18 syntax, so the effect of this CL is to
add some additional errors when Config.GoVersion is below 1.18.
This is a non-trivial port, both due to different error reporting APIs
and due to interacting with declaration syntax nodes, which differ
between go/ast and cmd/compile/internal/syntax.
Change-Id: I8003a014e6eec5e554c24e9a6cfc0548ec534834
Reviewed-on: https://go-review.googlesource.com/c/go/+/346433
Trust: Robert Findley <rfindley@google.com>
Run-TryBot: Robert Findley <rfindley@google.com>
TryBot-Result: Go Bot <gobot@golang.org>
Reviewed-by: Robert Griesemer <gri@golang.org>
This is a port of CL 342690 to go/types.
Change-Id: I27dcde237e400a84c3394a3579805014777830bc
Reviewed-on: https://go-review.googlesource.com/c/go/+/346432
Trust: Robert Findley <rfindley@google.com>
Run-TryBot: Robert Findley <rfindley@google.com>
TryBot-Result: Go Bot <gobot@golang.org>
Reviewed-by: Robert Griesemer <gri@golang.org>
