Add ifdefs to the test reference tables for cases where paths are
interpreted differently (paths that contain a root name).

Fix test assumptions regarding has_root_name() and is_absolute() and
add logic to verify the results of is_absolute() for the test cases in
the table.

Also add a testcase for the path "//net/", which seemed like an
omission.

Differential Revision: https://reviews.llvm.org/D89943

Added the following attributes to all LLVM syntax files:
  * allocsize
  * cold
  * convergent
  * dereferenceable_or_null
  * hot
  * inaccessiblemem_or_argmemonly
  * inaccessiblememonly
  * inalloca
  * jumptable
  * nocallback
  * nocf_check
  * noduplicate
  * nofree
  * nomerge
  * noprofile
  * nosync
  * null_pointer_is_valid
  * optforfuzzing
  * preallocated
  * safestack
  * sanitize_hwaddress
  * sanitize_memtag
  * shadowcallstack
  * speculative_load_hardening
  * swifterror
  * syncscope
  * tailcc
  * willreturn

I generated that list by comparing:
  * Attributes.inc (generated from Attributes.td), and
  * the Vim syntax file: llvm/utils/vim/syntax/llvm.vim

My original intention was to focus on the Vim syntax file. Since other
syntax files are also out-of-date, I added these attributes (if missing)
to other files as well. Note that in the other sytnax files (i.e. for
Emacs, VScode and Kate), there will be other attributes missing too.

I've also sorted all attributes alphabetically. Otherwise it's really
hard to automate adding new attributes. And I think that it was the
original intent to keep all of them ordered alphabetically.

Differential Revision: https://reviews.llvm.org/D97627

With this, llvm-tblgen no longer tries and fails to allocate 7953 petabyte
when it runs during the build. Instead, `check-llvm` with lld/mac as host
linker now completes without any failures on an m1 mac.

This vector op handling code matches what happens in:
- ld64's OutputFile::applyFixUps() in OutputFile.cpp for kindStoreARM64PageOff12
- lld.ld64.darwinold's offset12KindFromInstruction() in
  lld/lib/ReaderWriter/MachO/ArchHandler_arm64.cpp for offset12scale16
- RuntimeDyld's decodeAddend() in
  llvm/lib/ExecutionEngine/RuntimeDyld/Targets/RuntimeDyldMachOAArch64.h for
  ARM64_RELOC_PAGEOFF12

Fixes PR49444.

Differential Revision: https://reviews.llvm.org/D98053

Implement the promotion rule for SELECT_CC nodes by upcasting all the parameters and downcasting the result.
The AArch64 target makes use of this rule and, since it was not implemented, in some cases the instruction selector would hit an assertion upon encountering the illegal node.

This patch requires D97840, the included test cases hit both problems.

Reviewed By: craig.topper

Differential Revision: https://reviews.llvm.org/D97859

This covers a path missed in https://reviews.llvm.org/D95768.

Reviewed By: arsenm

Differential Revision: https://reviews.llvm.org/D98013

With this, you can set `clang_base_path = "//out/gn1"` in `out/gn2/args.gn` and
the build in out/gn2 will use clang and lld from out/gn1.

Setting `clang_base_path` to an absolute path (with e.g.
`clang_base_path = getenv("HOME") + "/src/..."`) should behave as before.

Differential Revision: https://reviews.llvm.org/D97989

Copy-paste P9 insns were added back in 2016,
however, looks like the opcodes has changed in ISA3.1.

Reviewed By: #powerpc, nemanjai

Differential Revision: https://reviews.llvm.org/D97416

This patch adds a new metadata node, DIArgList, which contains a list of SSA
values. This node is in many ways similar in function to the existing
ValueAsMetadata node, with the difference being that it tracks a list instead of
a single value. Internally, it uses ValueAsMetadata to track the individual
values, but there is also a reasonable amount of DIArgList-specific
value-tracking logic on top of that. Similar to ValueAsMetadata, it is a special
case in parsing and printing due to the fact that it requires a function state
(as it may reference function-local values).

This patch should not result in any immediate functional change; it allows for
DIArgLists to be parsed and printed, but debug variable intrinsics do not yet
recognize them as a valid argument (outside of parsing).

Differential Revision: https://reviews.llvm.org/D88175

Reduction updates should be masked, just like the load and stores.
Note that alternatively, we could use the fact that masked values are
zero of += updates and mask invariants to get this working but that
would not work for *= updates. Masking the update itself is cleanest.
This change also replaces the constant mask with a broadcast of "true"
since this constant folds much better for various folding patterns.

Reviewed By: nicolasvasilache

Differential Revision: https://reviews.llvm.org/D98000

Fixes clang-tidy warning

and __kmpc_end_masked. The "master" construct is deprecated. Changed
proc-bind keyword from "master" to "primary". Use of both master
construct and master as proc-bind keyword is still allowed, but
deprecated.

Remove references to "master" in comments and strings, and replace
with "primary" or "primary thread". Function names and variables were
not touched, nor were references to deprecated master construct. These
can be updated over time. No new code should refer to master.

Add diagnostic tests with fir-opt for the diagnostics emitted by the ops verifier

Reviewed By: jeanPerier

Differential Revision: https://reviews.llvm.org/D97996

Expand the horizontal reduction during the instruction selection phase, but only if the target doesn't support the full fp16 instruction set.

Fixes https://bugs.llvm.org/show_bug.cgi?id=49401

Reviewed By: aemerson

Differential Revision: https://reviews.llvm.org/D97840

Reviewed By: herhut

Differential Revision: https://reviews.llvm.org/D98024

A few files in libc++abi make use of libc++ headers and a few of those use threading primitives provided by libc++. Since libc++ has multiple threading APIs it may be necessary to override auto-detection.

This patch adds the LIBCXXABI_HAS_WIN32_THREAD_API which does roughly the same as LIBCXXABI_HAS_PTHREAD_API and the similarly named LIBCXX_HAS_WIN32_THREAD_API from libc++. Instead of using autodetection it will force the use of win32 threads instead of pthreads in headers included from libc++.

Without this patch, libc++abi may depend on pthreads if present on the users build environment, even if win32 threading was selected for libc++.

Differential revision: https://reviews.llvm.org/D98021

Reviewed By: jsji

Differential Revision: https://reviews.llvm.org/D98010

whitespace only, no behavior change

Previously, lld/mac only ad-hoc codesigned executables on arm64.

Matches ld64 behavior. Part of PR49443. Fixes 14 of 17 failures when running
check-llvm with lld as host linker on an M1 MBP.

Differential Revision: https://reviews.llvm.org/D97994

Some BPF programs compiled on s390 fail to load, because s390
arch-specific linux headers contain float and double types. At the
moment there is no BTF_KIND for floats and doubles, so the release
version of LLVM ends up emitting type id 0 for them, which the
in-kernel verifier does not accept.

Introduce support for such types to libbpf by representing them using
the new BTF_KIND_FLOAT.

Reviewed By: yonghong-song

Differential Revision: https://reviews.llvm.org/D83289

We have no way to reason about the bool returned by try_emplace, so we
simply ignore any std::move()s that happen in a try_emplace argument.
A lot of the time in this situation, the code will be checking the
bool and doing something else if it turns out the value wasn't moved
into the map, and this has been causing false positives so far.

I don't currently have any intentions of handling "maybe move" functions
more generally.

Reviewed By: sammccall

Differential Revision: https://reviews.llvm.org/D98034

A bug was introduced when adding -munsafe-fp-atomics.
By default it should be off.

Reviewed by: Artem Belevich

Differential Revision: https://reviews.llvm.org/D97967

Like nvptx and some other targets, -mconstructor-aliases does not work well with amdgpu,
therefore we disable it in the same approach.

Reviewed by: Artem Belevich

Differential Revision: https://reviews.llvm.org/D97959

`mix` is subtly different from `clamp`: in the overloads where the
last argument is a scalar, the second argument should be a gentype for
`mix`.

As scalars can be implicitly converted to vectors, this cannot be
caught in the Sema test.  Hence adding a CodeGen test, where we can
verify the types using the mangled name.

Previously if we couldn't run the clang-format command
for some reason, you'd get an unhelpful error message:
```
OSError: [Errno 2] No such file or directory
```

Which doesn't tell you what was happening to cause this.

Catch the error and add the command we were attempting to run:
```
RuntimeError: Failed to run "<...>/clang-food <...>" - No such file or directory"
RuntimeError: Failed to run "<...>/clang-format <...>" - Permission denied"
```

Reviewed By: krasimir

Differential Revision: https://reviews.llvm.org/D98032

Rewrites test to use correct architecture triple; fixes incorrect
reference in SourceLevelDebugging doc; simplifies `spillReg` behaviour
so as to not be dependent on changes elsewhere in the patch stack.

This reverts commit d2000b45.

This patch uses the errno python library to print out the correct error messages instead of hardcoding the error message per platform.

Reviewed By: jhenderson, ASDenysPetrov

Differential Revision: https://reviews.llvm.org/D97472

Same as other memory instructions, ds instructions add latency even if
exec is zero. Jumping over them if exec=0 is cheaper than executing
them.
With this change, the branch instruction that skips over a basic block
if exec=0 is not removed when the block contains a ds instruction.

Differential Revision: https://reviews.llvm.org/D97922

Revert rG8198d839: "[X86] Pass to transform amx intrinsics to scalar operation."

This reverts commit 8198d839.due to buildbot breakages

This patch fixes LLD to allow element sections for tables whose number
is nonzero.  We also add a test for linking multiple tables, showing
that nonzero table numbers for the indirect function table,
user-declared imported tables, and local user table definitions work.

Differential Revision: https://reviews.llvm.org/D92321

The new test llvm/test/Transforms/CodeGenPrepare/remove-assume-block.ll
breaks on non-X86 machines. Change it to look like the existing test
llvm/test/Transforms/CodeGenPrepare/X86/delete-assume-dead-code.ll
to fix it.

Reviewed By: bkramer

Differential Revision: https://reviews.llvm.org/D97952

With reference types, tables can have non-zero table numbers.  This
commit adds support for element sections against these tables.

Differential Revision: https://reviews.llvm.org/D97923