In D106876, we stopped serializing module map files that didn't affect compilation of the current module.

However, since each `SourceLocation` is simply an offset into `SourceManager`'s global buffer of concatenated input files in, these need to be adjusted during serialization. Otherwise, they can incorrectly point after the buffer or into subsequent input file.

This patch starts adjusting `SourceLocation`s, `FileID`s and other `SourceManager` offsets in `ASTWriter`.

Reviewed By: dexonsmith

Differential Revision: https://reviews.llvm.org/D136624

This patch delays some `ASTWriter` logic until after we've checked whether the source location entry we're serializing as an affecting file or not.

Depends on D137214.

Reviewed By: dexonsmith

Differential Revision: https://reviews.llvm.org/D137216

This makes the tests more minimal, and in particular it avoids relying on a complete `<cstdlib>`, which may not be available on all platforms.

Differential Revision: https://reviews.llvm.org/D137188

This is a prep-patch for D136624 which allows querying `SourceManager` with raw offsets instead of `SourceLocation`s.

Reviewed By: dexonsmith

Differential Revision: https://reviews.llvm.org/D137215

This patch is a NFC prep for D136624, where we start adjusting offsets into `SourceManager`.

Depends on D137213.

Reviewed By: dexonsmith

Differential Revision: https://reviews.llvm.org/D137214

For pragma diagnostic mappings, we always write/read `SourceLocation` with offset 0. This is equivalent to just writing a `FileID`, which is exactly what this patch starts doing.

Depends on D137211.

Reviewed By: dexonsmith

Differential Revision: https://reviews.llvm.org/D137213

This patch adds new functions for writing/reading `FileID`s and uses them to replace some ad-hoc code.

Reviewed By: dexonsmith

Differential Revision: https://reviews.llvm.org/D137211

Some work will be needed to comply with these rules for non-integral
pointers.

We need to land asan_allocator.h patches first.

This reverts commit 75a8cdbc.

Reviewed By: aartbik

Differential Revision: https://reviews.llvm.org/D137210

As titled. The change should have minimal impact since the targets of branch samples are mostly covered by range samples.

Reviewed By: wenlei, wlei

Differential Revision: https://reviews.llvm.org/D137203

The empty key value for APInt was colliding with a valid zero-width
APInt.  Change the internal value of empty key and tombstone values
for APInt to avoid this collision.

Fixes: https://github.com/llvm/llvm-project/issues/58013

Differential Revision: https://reviews.llvm.org/D135741

This does some trivial cross-regclass folding, where we can either do some extra
constraining to eliminate the copy or modify uses to use a smaller regclass.

There are minor code size improvements on average.

Program                                       size.__text
                                              before         after           diff
tramp3d-v4/tramp3d-v4                         366000.00      366012.00       0.0%
mafft/pairlocalalign                          248196.00      248188.00      -0.0%
7zip/7zip-benchmark                           568612.00      568592.00      -0.0%
kimwitu++/kc                                  434704.00      434676.00      -0.0%
Bullet/bullet                                 456128.00      456096.00      -0.0%
sqlite3/sqlite3                               284136.00      284100.00      -0.0%
ClamAV/clamscan                               381492.00      381396.00      -0.0%
SPASS/SPASS                                   412052.00      411944.00      -0.0%
lencod/lencod                                 428060.00      427912.00      -0.0%
consumer-typeset/consumer-typeset             413148.00      411116.00      -0.5%
                           Geomean difference                               -0.1%

Differential Revision: https://reviews.llvm.org/D136793

Reviewed By: michaelrj

Differential Revision: https://reviews.llvm.org/D137147

Reviewed By: aartbik

Differential Revision: https://reviews.llvm.org/D136301

Some distribution install libraries under lib64. LLVM supports this
through LLVM_LIBDIR_SUFFIX, have bolt do the same.

Differential Revision: https://reviews.llvm.org/D137039

The implementation_attrs attr allows passing of backend specific
attributes to TOSA custom ops.

Also adds a config option to avoid namespace collisions on the
identifier.

Reviewed By: rsuderman

Differential Revision: https://reviews.llvm.org/D137133

Some places were using unwrap<T>(x) = cast<T>(unwrap(x)), even though
the unwrapped value already had type T. Removing the template argument
makes it clear that no cast is intended.

Other places were using cast<T>(unwrap(x)), we replace that with the
shorthand unwrap<T>(x) for consistency.

This is on a path to deprecation.
Context: https://discourse.llvm.org/t/psa-retire-tileandfuselinalgops-method/63850

As the interface-based transformation is more generic, some additional folding of AffineMin/MaxOp and some extra canonicalizations are needed.
This can be further evolved.

Differential Revision: https://reviews.llvm.org/D137195

The packet was introduced in 106d0286.

Differential Revision: https://reviews.llvm.org/D136958

Add the atomic subroutine, atomic_or, to the list of
intrinsic subroutines, add its last dummy argument to a check
for a coindexed-object, and update test.

Reviewed By: PeteSteinfeld

Differential Revision: https://reviews.llvm.org/D137097

These weren't running anywhere because of bad specifications.
One test has bit-rotted and had to be XFAILed, the rest are okay.

Differential Revision: https://reviews.llvm.org/D136612

This change will switch SizeClassAllocator32 to SizeClassAllocator64 on ARM. This might potentially affect ARM platforms with 39-bit address space. This addresses [[ https://github.com/google/sanitizers/issues/703  | issues/703  ]], but unlike [[ https://reviews.llvm.org/D60243 | D60243 ]] it defaults to 64 bit allocator.

Reviewed By: vitalybuka, MaskRay

Differential Revision: https://reviews.llvm.org/D137136

This should prevent crashing for the example in issue #58552
by not matching a select-of-vectors-with-scalar-condition.

A similar change is likely needed for the related fold to
properly fix that kind of bug.

The test that shows a regression seems unlikely to occur
in real code.

This also picks up an optimization in the case where a real
(bitwise) logic op is used. We could already convert some
similar select ops to real logic via impliesPoison(), so
we don't see more diffs on commuted tests. Using commutative
matchers (when safe) might also handle one of the TODO tests.

This patch forces pointer and allocatable polymorphic entities to be
tracked as descriptor. It also enables the pointer assignment between
polymorphic entities. Pointer association between a non-polymorphic
pointer and a polyrmophic target might require some more work as
per 10.2.2.3 point 1.

Reviewed By: PeteSteinfeld

Differential Revision: https://reviews.llvm.org/D137150

It was pointed out the verifier rejects inttoptr and ptrtoint casts with inputs and outputs whose scalability doesn't match.  As such, checking the input type separately from the type of the cast itself is redundant.

In https://reviews.llvm.org/D80833, there were concerns about
determinism emitting the commandline into CodeView. We're actually
hitting these when running clang-cl on Linux (cross compiling) versus on
Windows (e.g. -fmessage-length being inferred on terminals).

Add -g[no-]codeview-command-line to enable/disable this feature.
It's still on by default to preserve the current state of clang.

Reviewed By: thakis, rnk

Differential Revision: https://reviews.llvm.org/D136474

Varargs and inalloca have a weird interaction where varargs are actually
passed via the inalloca alloca. Removing inalloca breaks the varargs
because they're still not passed as separate arguments.

Fixes #58718

Reviewed By: rnk

Differential Revision: https://reviews.llvm.org/D137182

Makes sure headers having a xxx_result as return type export the proper
header. Without exporting these modularized headers are not self
contained.

This is related to D136045.

Reviewed By: #libc, ldionne

Differential Revision: https://reviews.llvm.org/D136711

Claim some tasks for formatting and mark some parts as complete, which
was missed in the commits completing the task.

Reviewed By: #libc, ldionne

Differential Revision: https://reviews.llvm.org/D137014

Fixes https://llvm.org/PR58315

Reviewed By: #libc, ldionne

Differential Revision: https://reviews.llvm.org/D137017

No code changes, but only increased the range in the tests.

Completes:
- LWG3273. Specify weekday_indexed to range of [0, 7]

Reviewed By: #libc, ldionne

Differential Revision: https://reviews.llvm.org/D137015

Based on discussion on the core reflector, it was made clear that a
concept that depends on itself should be a hard error, not a constraint
failure. This patch implements a stack of constraint-checks-in-progress
to make sure we quit, rather than hitting stack-exhaustion.

Note that we DO need to be careful to make sure we still check
constraints properly that are caused by a previous constraint, but not
derived from (such as when a check causes us to check special member
function generation), so we cannot use the existing logic to see if this
is being instantiated.

This fixes https://github.com/llvm/llvm-project/issues/44304 and
https://github.com/llvm/llvm-project/issues/50891.

Differential Revision: https://reviews.llvm.org/D136975