Msan complains if getFoundDecl called before it's set.
This looks like data class, so I see no reason to keep
the single field uninitialized.

I assume it's optional and ReadAST does not have to set the
counter on success.

Without the patch msan complains that we pass
uninitialized value into noundef parameters of setCounterValue.

Reviewed By: bnbarham, barannikov88

Differential Revision: https://reviews.llvm.org/D150492

Currently, the header units are rarely used and it is not well tested.
To avoid further misunderstandings, let's mark it as experimental and
emit a warning when users wants to import it.

This is discussed in modules developers meeting.

Fixes false leaks on thread retval.

Reviewed By: thurston

Differential Revision: https://reviews.llvm.org/D150165

Fixes false leaks on thread retval.

Reviewed By: thurston

Differential Revision: https://reviews.llvm.org/D150106

Luckely of Linux PTHREAD_CREATE_DETACHED is 1.

InstCombine already does this for minnum/maxnum. If we
also apply this to fmed3, we don't need to explicitly
use 16-bit fmed3 if we're not sure the target
supports 16-bit instructions yet.

This restores 737a4521 (2013) which was removed
by my a07b135c.
This behavior turns out to be depended on by `bazel coverage`.

Add a `PWD=/proc/self/cwd %clang -### -c --coverage %s -o foo/bar.o` test.

Reproducible with =-1 and assert: https://reviews.llvm.org/P8309

Reviewed By: jmorse

Differential Revision: https://reviews.llvm.org/D150420

Missing work for D150835, aside from VMASKMOVDQU, MASKMOVDQU will also be affected by D150436.

Reviewed By: skan

Differential Revision: https://reviews.llvm.org/D150844

Doesn't try the all the tricks computeKnownBits does.

Allows assume handling to work.

This should now be redundant with the nan handling in computeKnownFPClass.

computeKnownFPClass should now handle infinity checks equally as
well as what this could do before so delete the redundant code.

Use AllVectors to replace !listconcat(AllIntegerVectors, AllFloatVectors).

Reviewed By: craig.topper

Differential Revision: https://reviews.llvm.org/D150837

This was copied from SVE, but is currently not applicable to RISC-V.

This reverts commit 286cefcf.

Patch caused build failures for downstream projects on Windows due to
the fact that __cpuidex was added as a built in on Windows in D121653.
Reverting for now so that others aren't blocked and I can figure out a
proper solution.

The properties size is compressed as a member of the Operation class
to assume a multiple of 8B is used for the storage. This matched the
natural alignment / padding on 64 bits platforms, however we need some
explicit padding on 32 bits platforms, llvm::TrailingObjects will
compress and misalign.

Fixes #62763

Make intent more explicit with the use of new helper methods.

Reviewed By: #bolt, maksfb

Differential Revision: https://reviews.llvm.org/D150810

Mark V_MBCNT instructions add thread/lane position so will never
be uniform.

Reviewed By: foad

Differential Revision: https://reviews.llvm.org/D150759

turnGuardIntoBranch() can use splitBlockAndInsertIfThen to update the
DominatorTree rather than implementing it itself.

Reviewed By: eopXD

Differential Revision: https://reviews.llvm.org/D150690

While we are at it, this patch removes unnecessary includes.

The corresponding function definition was removed by:

  commit 9071393c
  Author: Jay Foad <jay.foad@amd.com>
  Date:   Thu Feb 17 14:17:36 2022 +0000

VMASKMOVDQU supports 32bit/64bit version in 64bitmode, previously we prefer to use VMASKMOVDQU64 in 64bitmode because the 32bit one need 0x67 prefix.
After D150436, asm match table changed a little, which makes in 64bit mode "vmaskmovdqu     %xmm0, %xmm1" will match VMASKMOVDQU other than VMASKMOVDQU64, this patch correct the asm match order for this instruction.

Reviewed By: skan

Differential Revision: https://reviews.llvm.org/D150835

The last use was removed by:

  commit e98944ed
  Author: Stanislav Mekhanoshin <Stanislav.Mekhanoshin@amd.com>
  Date:   Mon Mar 11 17:04:35 2019 +0000

When in ColumnLimit 0, the formatter looks for MustBreakBefore in the
line in order to check if a line is allowed to be merged onto one line.

However, since MustBreakBefore is really a property of the gap between
the token and the one previously, I belive the check is erroneous in
checking all the tokens in a line, since whether the previous line ended
with a forced line break should have no effect on whether the current
line is allowed to merge with the next one.

This patch changes the check to skip the first token in
`LineJoiner.containsMustBreak`.

This patch also changes a test, which is not ideal, but I believe the
test also suffered from this bug. The test case in question sets
AllowShortFunctionsOnASingleLine to "Empty", but the empty function in
said test case isn't merged to a single line, because of the very same
bug this patch fixes.

Fixes https://github.com/llvm/llvm-project/issues/62721

Reviewed By: HazardyKnusperkeks, owenpan, MyDe...

Apply the check for the constraint `C1172` to `unlock-stmt`,
`change-team-stmt`, `end-team-stmt`, and `critical-stmt`, which
all have `sync-stat-lists` and so `C1172` applies to them. Add
a test to check the `sync-stat-lists` for these 4 statements.

Reviewed By: PeteSteinfeld

Differential Revision: https://reviews.llvm.org/D150745

This patch is similar to https://reviews.llvm.org/D150550, it adds accurate predicates for SDNode patterns depending on vector type.

Reviewed By: craig.topper

Differential Revision: https://reviews.llvm.org/D150754

Preparatory change for D148094.

We should specify that this is the pid_t as defined in the lldb
namespace, not some other pid_t. This doesn't really affect builds but
it makes writing tooling against the SBAPI easier.

I have verified that this does not change the emitted mangled name and
does not break ABI.

For some reason, even though D150822 passed the buildbot, it failed to
catch this test

Reviewed By: anlunx

Differential Revision: https://reviews.llvm.org/D150830

After a07b135c, we always pass
-coverage-notes-file/-coverage-data-file for driver options
-ftest-coverage/-fprofile-arcs/--coverage. As a bonus, we can make the following
simplification to cc1 options:

* `-ftest-coverage -coverage-notes-file a.gcno` => `-coverage-notes-file a.gcno`
* `-fprofile-arcs -coverage-data-file a.gcda` => `-coverage-data-file a.gcda`

and remove EmitCovNotes/EmitCovArcs.