Differential Revision: https://reviews.llvm.org/D132409

Affine exprs compose better than arith ops.

Differential Revision: https://reviews.llvm.org/D132456

Previously when I wrote this document, I felt the completed scripts was
lengthy, redundant and not easy to read. So I didn't add complete
examples in the previous commit.

However, in the recent discussion with @avogelsgesang, I found people
may not know how to use debugging scripts to improve their debugging
efficiency. So now, I feel like it is helpful to put the examples even
if they are a little bit long.

Test Plan: make docs-clang-html

Reviewed By: avogelsgesang

Differential Revision: https://reviews.llvm.org/D132451

This patch proposes to move the llvm::detail::PopulationCounter internal helpers into ADT/bit.h and provide a llvm::popcount implementation.

I've left the countPopulation implementation in place in MathExtras.h for now, but updated it to use llvm::popcount.

Hopefully I've got the type_traits correct - I don't use them very often.

Someday we'll move to C++20 with an actual <bit> std header, and we already have this header in place to simplify matters. We'd probably benefit from moving the other <bit> helpers here at some point, but this is a first step.

Differential Revision: https://reviews.llvm.org/D132407

CodeGenPrepare pass can sink pointer comparison across statepoint
to the point of use (see comment in IR/SafepointIRVerifier.cpp)
Due to specifics of statepoints, it is still legal to have tied
def and use rewritten to the same register in TwoAddress pass.
However, properly updating LiveIntervals and LiveVariables becomes
complicated. For simplicity, let's fall back to generic handling of
tied registers when we detect such case.
TODO: This fixes functional (assertion) failure. Ideally we should
try to recompute new live range/liveness in place.

Reviewed By: skatkov

Differential Revision: https://reviews.llvm.org/D132255

The argument is no longer used, remove it.

When AtomicOrdering is release or stronger, use
    amswap_db.[w/d] $zero, $a1, $a0
instead of
    dbar 0
    st.[w/d] $a0, $a1, 0

Thanks to @xry111 for the suggestion: https://reviews.llvm.org/D128901#3626635

Differential Revision: https://reviews.llvm.org/D129838

This revision deletes LinalgStrategyGeneralizePass.

Context: https://discourse.llvm.org/t/psa-retire-linalg-filter-based-patterns/63785

Reviewed By: nicolasvasilache

Differential Revision: https://reviews.llvm.org/D132363

The test fails not because of undef, so replacing with
normal condition.

This revision removes the Linalg generic interchange pattern and pass.

It also changes transform-patterns test to make use of transform dialect.

Context: https://discourse.llvm.org/t/psa-retire-linalg-filter-based-patterns/63785

Differential Revision: https://reviews.llvm.org/D132368

A FriendDecl node can have a friend record type that owns a RecordDecl
object. This object is different than the one got from TypeSourceInfo
object of the FriendDecl. When building a ParentMapContext this owned
tag decaration has to be encountered to have the parent set for it.

Reviewed By: sammccall

Differential Revision: https://reviews.llvm.org/D131685

The "real" method declaration is in LinalgInterfaces.h

Differential Revision: https://reviews.llvm.org/D132227

warning: unused variable ‘FC’

Reviewed By: kazu

Differential Revision: https://reviews.llvm.org/D132429

With the initial support added, clang can compile `helloworld` C
to executable file for loongarch64. For example:

```
$ cat hello.c
int main() {
  printf("Hello, world!\n");
  return 0;
}
$ clang --target=loongarch64-unknown-linux-gnu --gcc-toolchain=xxx --sysroot=xxx hello.c
```

The output a.out can run within qemu or native machine. For example:

```
$ file ./a.out
./a.out: ELF 64-bit LSB pie executable, LoongArch, version 1 (SYSV), dynamically linked, interpreter /lib64/ld-linux-loongarch-lp64d.so.1, for GNU/Linux 5.19.0, with debug_info, not stripped
$ ./a.out
Hello, world!
```

Currently gcc toolchain and sysroot can be found here:
https://github.com/loongson/build-tools/releases/download/2022.08.11/loongarch64-clfs-5.1-cross-tools-gcc-glibc.tar.xz

Reference: https://github.com/loongson/LoongArch-Documentation
The last commit hash (main branch) is:
99016636af64d02dee05e39974d4c1e55875c45b

Note loongarch32 is not fully tested because there is no reference
gcc toolchain yet.

Differential Revision: https://reviews.llvm.org/D130255

For bootstrap builds (CLANG_ENABLE_BOOTSTRAP=ON) allow
arguments to be passed to the native tool used in CMake
for the stage2 step.

Can be used to pass extra arguments for enhanced versions
of build tools, e.g. distributed build options.

Reviewed By: phosek

Differential Revision: https://reviews.llvm.org/D131665

Support inline asm memory operand for VE.  Add regression tests also.

Reviewed By: efocht

Differential Revision: https://reviews.llvm.org/D132380

Reviewed By: jacquesguan

Differential Revision: https://reviews.llvm.org/D132093

Reviewed By: kazu

Differential Revision: https://reviews.llvm.org/D131886

This removes an obsolete test case introduced by mistake from
commit 2e361207.

`llvm::all_equal` checks if all values in the given range are equal, i.e., there are no two elements that are not equal.
Similar to `llvm::all_of`, it returns `true` when the range is empty.

`llvm::all_equal` is intended to supersede `llvm::is_splat`, which will be deprecated and removed in future patches.
See the discussion thread for more details:
https://discourse.llvm.org/t/adt-is-splat-and-empty-ranges/64692.

Reviewed By: dblaikie, shchenz

Differential Revision: https://reviews.llvm.org/D132334

Fixes #54522.
Fixes #57158.

Differential Revision: https://reviews.llvm.org/D132001

- Add spv.store instead of init for spv.variable to fix data issues in
  some GPU drivers

Reviewed By: antiagainst
Patch By: raikonenfnu

Differential Revision: https://reviews.llvm.org/D132427

Reviewed By: antiagainst
Patch By: raikonenfnu

Differential Revision: https://reviews.llvm.org/D132424

Since we have enabled the support for `_Float16` on SSE2, we can relax
the limitation for AVX512FP16 now. This helps for user to use AVX512FP16
mixed with unsupported versions, e.g., multiversioning.

Also fix lit fails due to missing const modifier. Found during this change.

Reviewed By: RKSimon

Differential Revision: https://reviews.llvm.org/D132342

This patch introduces new option `-eager-load-pcm` to `clang-scan-deps`, which controls whether the resulting command-lines will load PCM files eagerly (at the start of compilation) or lazily (when handling import directive). This patch also switches the default from eager to lazy.

To reduce the potential for churn in LIT tests in the future, this patch also removes redundant checks of command-line arguments and introduces new test `modules-dep-args.c` as a substitute.

Reviewed By: benlangmuir

Differential Revision: https://reviews.llvm.org/D132066

When a type has a summary and synthetic child provider, the children are shown
only if `--expand`/`-e` is given.

This updates `lldbDataFormatters.py` to expand children of types that have both
a summary and synthetic children.

Differential Revision: https://reviews.llvm.org/D132095

Fix incorrect pointer usage in Vulkan buffer and Memref descriptor binding:
- Vulkan runtime produced incorrect result if there is alignment.
- There was illegal memory access if binding a LLVM global materialized
  from a constant op (0xdeadbeef).

Reviewed By: antiagainst

Differential Revision: https://reviews.llvm.org/D132291

Default attributes were only handled by ODS accessors generated with the
intention that these behave as if set attributes. This addresses the
long standing TODO to address this inconsistency. Moving the
initialization to construction vs every access. Removing need for
duplicated default attribute population in python bindings.

Switch some of the OpenMP ones to optional attribute with default as the
currently set default values are not legal. May need to dig more there.

Switched LinAlg generated ones to optional attribute with default as its
quite widely used and unclear where it falls on two different
interpretations.

Differential Revision: https://reviews.llvm.org/D130916

This reverts commit 5f886adb.

It broke clang-hip-vega20.

https://lab.llvm.org/buildbot/#/builders/165/builds/23675

to handle lit tools searching. Otherwise
compiler-rt depends on system environment variable PATH for lit tools
which diverge from the other LLVM projects. This reverts D83486 which
really should be implemented in LIT itself when the PATH is constructed.

Reviewed By: vitalybuka

Differential Revision: https://reviews.llvm.org/D122837

that can lead to security vulnerabilities

Also, fix a few places that were causing -Wshadow and
-Wformat-nonliteral warnings to be emitted.

Differential Revision: https://reviews.llvm.org/D131714

They were previously incorrectly listed in fcntl.h

libc++ prior to LLVM 15 has a bug in it due to it excluding
`remove_reference_t` when `__remove_reference` is available as a
compiler built-in. This went unnoticed until D116203 because it wasn't
available in any compiler.

To work around this, we're renaming `__remove_reference` to
`__remove_reference_t`.

TEST=Tested locally, tested using emscripten

This adds the other potential bitcode sections that can exist and should
be stripped with `-r` from `llvm-bitcode-strip`.

Differential Revision: https://reviews.llvm.org/D132267