Stores now always have an alignment.

Loads and stores always have an alignment now.

Summary: Use a portable section name, as for the test's purpose any name will do.

Reviewers: nickdesaulniers, thakis

Reviewed By: thakis

Subscribers: cfe-commits

Tags: #clang

Differential Revision: https://reviews.llvm.org/D81306

This reverts commit 74bd9882.
Breaks LLVM::section-headers.test everywhere, see e.g.
http://lab.llvm.org:8011/builders/clang-x86_64-debian-fast/builds/29940/steps/test-check-all/logs/FAIL%3A%20LLVM%3A%3Asection-headers.test

Since FindXcodeContentsDirectoryInPath expects the *.app/Contents and
DEVELOPER_DIR is supposed to point to Xcode.app, we need to append the
Contents path first.

Differential Revision: https://reviews.llvm.org/D81290

Differential Revision: https://reviews.llvm.org/D81289

Similar to D81212.

Differential Revision: https://reviews.llvm.org/D81292

In my use case, this saved 100ms of time doing one-time-initialization
for std::error_code().

Differential Revision: https://reviews.llvm.org/D80749

Clang marks calls to operator new as heap allocation sites, but the
operator declared at global scope returns a void pointer. There is no
explicit cast in the code, so the compiler has to write down the
allocated type itself.

Also generalize a cast to use CallBase, so that we mark heap alloc sites
when exceptions are enabled.

Reviewed By: MaskRay

Differential Revision: https://reviews.llvm.org/D80966

If an instruction is erased we also need to remove it from
Visited set. There is a very small chance that an another
newly created instruction will be created with the same
pointer value in place of an erased one.

Differential Revision: https://reviews.llvm.org/D80958

This reverts commit 11d06b95.

This merges the static and shared library and behaves as if
`-search_paths_first` was specified which is also the default behaviour
on ld64 (and now lld). Unify the paths, and use `llvm::sys::path` to
deal with the path to be truly agnostic to the host.

Before this patch, llvm-pdbutil supported only --type-stats to dump stats about a PDB TPI stream.
Adding --id-stats for completion.

instead of preferring the one chosen with xcode-select.

<rdar://problem/64000666>

Differential Revision: https://reviews.llvm.org/D81210

These functions really don't belong into PlatformDarwin, since they
actualy query state of the Host and not of the remote platform.

Just computing the alignment makes sense without caring about the
general known bits, such as for non-integral pointers. Separate the
two and start calling into the TargetLowering hooks for frame indexes.

Start calling the TargetLowering implementation for FrameIndexes,
which improves the AMDGPU matching for stack addressing modes. Also
introduce a new hook for returning known alignment of target
instructions. For AMDGPU, it would be useful to report the known
alignment implied by certain intrinsic calls.

Also stop using MaybeAlign.

Immediate legalize fields were added for G_SEXT_INREG. Simiarly, these
are likely not legal except for certain offsets.

It broke clang-check.

This reverts commit 931fcd3b.

Related to https://reviews.llvm.org/D80916

Differential Revision: https://reviews.llvm.org/D81271

There were additional standalone patterns for these nodes which were
missing the subtarget predicate.

Shifts are supposed to always shift in zeros or sign bits regardless of their inputs. It's possible the input value may have been replaced with undef by SimplifyDemandedBits, but the shift in zeros are still demanded.

This issue was reported to me by ispc from 10.0. Unfortunately their failing test does not fail on trunk. Seems to be because the shl is optimized out earlier now and doesn't become VSHLI.

ispc bug https://github.com/ispc/ispc/issues/1771

Differential Revision: https://reviews.llvm.org/D81212

This patch addresses the review comments on r352930:

 - Removes redundant diagnostic checking code
 - Removes errnoneous use of diag::err_alias_is_definition, which
   turned out to be ineffective anyway since functions can be defined later
   in the translation unit and avoid detection.
 - Adds a test for various invalid cases for import_name and import_module.

Differential Revision: https://reviews.llvm.org/D59520

Summary: Non-zero malloc fill is causing way too many hard to debug issues.

Reviewers: kcc, pcc, hctim

Subscribers: #sanitizers, llvm-commits

Tags: #sanitizers

Differential Revision: https://reviews.llvm.org/D81284

Summary:
This makes -fsanitize=kernel-address emit the correct globals
constructors for the kernel. We had to do the following:

- Disable generation of constructors that rely on linker features such
  as dead-global elimination.

- Only emit constructors for globals *not* in explicit sections. The
  kernel uses sections for special globals, which we should not touch.

Bugzilla: https://bugzilla.kernel.org/show_bug.cgi?id=203493

Tested:
1. With 'clang/test/CodeGen/asan-globals.cpp'.
2. With test_kasan.ko, we can see:

  	BUG: KASAN: global-out-of-bounds in kasan_global_oob+0xb3/0xba [test_kasan]

Reviewers: glider, andreyknvl

Reviewed By: glider

Subscribers: cfe-commits, nickdesaulniers, hiraditya, llvm-commits

Tags: #llvm, #clang

Differential Revision: https://reviews.llvm.org/D80805

This should dump to the provided Out, rather than dbgs(), though
they coincide in current usage.

PendingInLocs ends up having the same value as InLocs, just computed
a bit more indirectly. It is a leftover of a previous implementation
approach.

This patch drops PendingInLocs, as well as the Diff and Removed
calulations, which are no longer needed.

Differential Revision: https://reviews.llvm.org/D80868

Different tools seem to be more or less strict with the markers
between different functions.

Match SelectionDAG's behavior of adding nofpexcept to out instructions
that may raise fp exceptions that are selected from instructions that
do not.

The in-process CC1 currently doesn't interoperate with the macOS crash analytics,
which we would like to keep enabled for Apple clang. This commit restores the
out-of-process CC1 to the Apple clang CMake configuration for now.

Differential Revision: https://reviews.llvm.org/D80849

Reorder `DumpSection` under `handleArgs` in file `MachOObjcopy.cpp`. The
operation to dump a section is now performed before both add and remove
section operations for MachO file format.

Change for the ELF format at D81097. Together fixes
https://bugs.llvm.org/show_bug.cgi?id=44283

Reviewed By: jhenderson

Differential Revision: https://reviews.llvm.org/D81123

Two tests regularly show up on the long tail when testing MLIR.
This revision reduces their size.

Reorder `DumpSection` under `handleArgs` in file `ELFObjcopy.cpp`.
`DumpSection` is placed before `replaceAndRemoveSections` and is
therefore now the first operation under `handleArgs`. Thus, it is now
performed before both `add` and `remove` section operations.

Change for the MachO format at D81123. Together fixes https://bugs.llvm.org/show_bug.cgi?id=44283.

Reviewed By: alexshap, jhenderson, MaskRay

Differential Revision: https://reviews.llvm.org/D81097