This is part of https://bugs.llvm.org/show_bug.cgi?id=40442.
Vector legalization is implemented for the add/sub overflow opcodes.
UMULO/SMULO are also handled as far as legalization is concerned, but
they don't support vector expansion yet (so no tests for them).
The vector result widening implementation is suboptimal, because it
could result in a legalization loop.
Differential Revision: https://reviews.llvm.org/D57639
llvm-svn: 353464
This patch fixes a bug where clang doesn’t reject union fields of
non-trivial C struct types. For example:
```
// This struct is non-trivial under ARC.
struct S0 {
id x;
};
union U0 {
struct S0 s0; // clang should reject this.
struct S0 s1; // clang should reject this.
};
void test(union U0 a) {
// Previously, both 'a.s0.x' and 'a.s1.x' were released in this
// function.
}
```
rdar://problem/46677858
Differential Revision: https://reviews.llvm.org/D55659
llvm-svn: 353459
Move the (add (umax X, C), -C) --> (usubsat X, C) X86 combine into generic DAGCombiner
First of a number of saturated arithmetic folds that can be moved out of X86-specific code for PR40111.
Differential Revision: https://reviews.llvm.org/D57754
llvm-svn: 353457
Summary:
Deferred diagnostic interface is going to be used for OpenMP device
compilation. Generalized previously existed deferred diagnostic
interface for CUDA to be used with OpenMP and, possibly, other models.
Reviewers: rjmccall, tra
Subscribers: caomhin, cfe-commits, kkwli0
Tags: #clang
Differential Revision: https://reviews.llvm.org/D57908
llvm-svn: 353456
This is pretty much directly ported from SelectionDAG. Doesn't include
the shift by non-constant but known bits version, since there isn't a
globalisel version of computeKnownBits yet.
This shows a disadvantage of targets not specifically which type
should be used for the shift amount. If type 0 is legalized before
type 1, the operations on the shift amount type use the wider type
(which are also less likely to legalize). This can be avoided by
targets specifying legalization actions on type 1 earlier than for
type 0.
llvm-svn: 353455
Summary:
This commit contains the following changes:
- Rewrite vfile close/read/write packet handlers with portable routines from lldb.
This removes #if(s) and allows the handlers to work on Windows.
- Fix a bug in File::Write. This is intended to write data at an offset to a file
but actually writes at the current position of the file.
- Add a default boolean argument 'should_close_fd' to FileSystem::Open to
let the user decide whether to close the fd or not.
Reviewers: zturner, llvm-commits, labath
Reviewed By: zturner
Subscribers: Hui, labath, abidh, lldb-commits
Differential Revision: https://reviews.llvm.org/D56231
llvm-svn: 353446
R_X86_64_PC{8,16} relocations are sign-extended, so when we check
for relocation overflow, we had to use checkInt instead of checkUInt.
I confirmed that GNU linkers create the same output for the test case.
llvm-svn: 353437
Summary:
Before this change, check-profile would run, but all tests would be
marked unsupported on Windows. This is the new status of 'check-profile'
after this change:
Testing Time: 6.66s
Expected Passes : 29
Expected Failures : 5
Unsupported Tests : 39
I moved many tests that exercise posix-y features like dlopen and DSOs
into the Posix subdirectory, and ran the tests on Linux to validate my
changes.
These are the remaining tests that I handled on a case by case basis:
- instrprof-path.c
Passes, Fixed some path portability issues
- instrprof-gcov-exceptions.test
Passes, the FileCheck actually succeeds on Windows, so I RUNX'd it
- instrprof-icall-promo.test
XFAILed, probably due to C++ ABI differences in vtables
- instrprof-merge-match.test
- instrprof-merge.c
- instrprof-merging.cpp
XFAILed, These seem like real bugs that need fixing
- instrprof-version-mismatch.c
XFAILed, Overriding the weak version symbol doesn't work
- instrprof-without-libc.c
UNSUPPORTED, test needs an executable symbol table, Windows has none
Reviewers: davidxl, wmi, void
Subscribers: fedor.sergeev, #sanitizers, llvm-commits
Tags: #sanitizers
Differential Revision: https://reviews.llvm.org/D57853
llvm-svn: 353435
Summary:
When compiling with profile data, ensure the split cold function gets
cold function_entry_count metadata (just use 0 since it should be cold).
Otherwise with function sections it will not be placed in the unlikely
text section with other cold code.
Reviewers: vsk
Subscribers: sebpop, hiraditya, davidxl, llvm-commits
Tags: #llvm
Differential Revision: https://reviews.llvm.org/D57900
llvm-svn: 353434
I noticed that we are missing this canonicalization in IR:
rL352515
...and then realized that we don't get this right in SDAG either,
so this has to be fixed first regardless of what we choose to do in IR.
The existing fold was limited to scalars and using the wrong predicate
to guard the transform. We have a boolean contents TLI query that can
be used to decide which direction to fold.
This may eventually lead back to the problems/question in:
https://bugs.llvm.org/show_bug.cgi?id=40486
...but it makes no difference to that yet.
Differential Revision: https://reviews.llvm.org/D57401
llvm-svn: 353433
Introduce a new function which handles instructions with multiple type
indices, but have the same number of vector elements.
Also legalize v2s16 shifts when applicable.
llvm-svn: 353432
Valid OpenCL C code should still compile in C++ mode.
This change enables extensions and OpenCL types.
Differential Revision: https://reviews.llvm.org/D57824
llvm-svn: 353431
This is intentionally a small step because it's hard to know exactly
where we might introduce a conflicting transform with the code that
tries to form wider shuffles. But I think this is safe - if we have
a wide shuffle with 2 operands, then we should do better with an
extract + narrow shuffle.
Differential Revision: https://reviews.llvm.org/D57867
llvm-svn: 353427
Summary:
Currently `TestImportBase` is derived from `ParameterizedTestsFixture`
which explicitly states that the gtest parameter can be only an
`ArgVector`. This is a limitation when we want to create tests which may
have different parameters.
E.g. we would like to create tests where we can combine different test
parameters. So, for example we'd like gtest to be able to provide
parameters of `<std::tuple<ArgVector, const char *>` instead of a simple
`ArgVector`.
Reviewers: a_sidorin, shafik, a.sidorin
Subscribers: rnkovacs, dkrupp, Szelethus, gamesh411, cfe-commits
Differential Revision: https://reviews.llvm.org/D57322
llvm-svn: 353425
Summary:
When adding one thin archive to another, we currently chop off the relative path to the flattened members. For instance, when adding `foo/child.a` (which contains `x.txt`) to `parent.a`, when flattening it we should add it as `foo/x.txt` (which exists) instead of `x.txt` (which does not exist).
As a note, this also undoes the `IsNew` parameter of handling relative paths in r288280. The unit test there still passes.
This was reported as part of testing the kernel build with llvm-ar: https://patchwork.kernel.org/patch/10767545/ (see the second point).
Reviewers: mstorsjo, pcc, ruiu, davide, david2050
Subscribers: hiraditya, llvm-commits
Tags: #llvm
Differential Revision: https://reviews.llvm.org/D57842
llvm-svn: 353424
Summary:
clangd is using as many threads as logical cores for BackgroundIndex
by default. We observed that it increases latency of foreground tasks.
This patch aims to change that default to number of physical cores to get rid of
that extra latency.
Reviewers: ilya-biryukov
Reviewed By: ilya-biryukov
Subscribers: ioeric, MaskRay, jkorous, arphaman, cfe-commits
Tags: #clang
Differential Revision: https://reviews.llvm.org/D57819
llvm-svn: 353422
The "signal" argument was removed from the MonitorCallback function, but
not from the log statements within it. This wasn't noticed because the
name "signal" suddenly started referring to the libc function with that
name.
This fixes that.
llvm-svn: 353419
Summary:
The standalone Scudo version is being built with `-Werror` which can be
tripped by extraneous command line arguments. We have little control over
those as they can be passed down to us by `CMAKE_C(XX)_FLAGS`, the reported
scenario involving `-stdlib=libc++` (see https://reviews.llvm.org/D57412#1384504).
To work around this, disable `-Wunused-command-line-argument`.
Reviewers: eugenis, vitalybuka, Eugene.Zelenko
Reviewed By: eugenis
Subscribers: mgorny, delcypher, #sanitizers, llvm-commits
Tags: #llvm, #sanitizers
Differential Revision: https://reviews.llvm.org/D57757
llvm-svn: 353418
Summary:
Memory usage for a sample TU:
Without Dex: 17.9M
With Dex: 24.4M
The memory increase is considerable but seems tolerable.
Subscribers: ilya-biryukov, MaskRay, jkorous, arphaman, kadircet, cfe-commits
Tags: #clang
Differential Revision: https://reviews.llvm.org/D57878
llvm-svn: 353413
When type streams with forward references were merged using GHashes, cycles
were introduced in the debug info. This was caused by
GlobalTypeTableBuilder::insertRecordAs() not inserting the record on the second
pass, thus yielding an empty ArrayRef at that record slot. Later on, upon PDB
emission, TpiStreamBuilder::commit() would skip that empty record, thus
offseting all indices that came after in the stream.
This solution comes in two steps:
1. Fix the hash calculation, by doing a multiple-step resolution, iff there are
forward references in the input stream.
2. Fix merge by resolving with multiple passes, therefore moving records with
forward references at the end of the stream.
This patch also adds support for llvm-readoj --codeview-ghash.
Finally, fix dumpCodeViewMergedTypes() which previously could reference deleted
memory.
Fixes PR40221
Differential Revision: https://reviews.llvm.org/D57790
llvm-svn: 353412
The patch in r350643 incorrectly sets the COFF emission based on bits
instead of bytes. This patch converts the 32 via CharUnits to bits to
compare the correct values.
Change-Id: Icf38a16470ad5ae3531374969c033557ddb0d323
llvm-svn: 353411
The tests are failing on windows because the paths in the symbol file
are parsed using the host path style. I'm working on a patch to have
SymbolFileBreakpad auto-detect the correct path style (similar to dwarf
r351328).
I originally wanted to make this a part of the initial line-table patch,
but then I simply forgot.
llvm-svn: 353410
Adrian Prantl