When porting libc++ to embedded systems, it can be useful to drop support
for localization, which these systems don't implement or care about.

Differential Revision: https://reviews.llvm.org/D90072

Shrink `FileEntryRef` to the size of a pointer, by having it directly
reference the `StringMapEntry` the same way that `DirectoryEntryRef`
does. This makes `FileEntryRef::FileEntryRef` private as a side effect
(`FileManager` is a friend!).

There are two helper types added within `FileEntryRef`:

- `FileEntryRef::MapValue` is the type stored in
  `FileManager::SeenFileEntries`. It's a replacement for
  `SeenFileEntryOrRedirect`, where the second pointer type has been
  changed from `StringRef*` to `MapEntry*` (see next bullet).
- `FileEntryRef::MapEntry` is the instantiation of `StringMapEntry<>`
  where `MapValue` is stored. This is what `FileEntryRef` has a pointer
  to, in order to grab the name in addition to the value.

Differential Revision: https://reviews.llvm.org/D89488

Differential Revision: https://reviews.llvm.org/D90204

Also, following D81841, don't try to encode f16 literals in i16/u16
instructions.

Differential Revision: https://reviews.llvm.org/D90242

Reviewed By: ezhulenev

Differential Revision: https://reviews.llvm.org/D90211

Differential Revision: https://reviews.llvm.org/D90220

This should have been removed when rG445c3fdd simplified the conditions.

Reported as "Snippet 5" in https://www.viva64.com/en/b/0771/

Seems like there's an assert in here that we shouldn't be running into.

This reverts commit 51597322.

Summary:
- Teach that pass to widen naturally aligned but not DWORD aligned
  sub-DWORD loads.

Reviewers: rampitec, arsenm

Subscribers:

Tags: #llvm

Differential Revision: https://reviews.llvm.org/D80364

Merge prefixes where possible, use 'X86' instead of 'X32' (which we try to only use for gnux32 triple tests).

Add VSUMS/VSUMX/VFSUM/VMAXS/VMAXX/VFMAX/VRAND/VROR/VRXOR isntructions.
Add regression tests too.

Reviewed By: simoll

Differential Revision: https://reviews.llvm.org/D90227

This patch changes MergeBlockIntoPredecessor to skip the call to
RemoveRedundantDbgInstrs, in effect partially reverting D71480 due to
some compile-time issues spotted in LoopUnroll and SimplifyCFG.

The call to RemoveRedundantDbgInstrs appears to have changed the
worst-case behavior of the merging utility. Loosely speaking, it seems
to have gone from O(#phis) to O(#insts).

It might not be possible to mitigate this by scanning a block to
determine whether there are any debug intrinsics to remove, since such a
scan costs O(#insts).

So: skip the call to RemoveRedundantDbgInstrs. There's surprisingly
little fallout from this, and most of it can be addressed by doing
RemoveRedundantDbgInstrs later. The exception is (the block-local
version of) SimplifyCFG, where it might just be too expensive to call
RemoveRedundantDbgInstrs.

Differential Revision: https://reviews.llvm.org/D88928

Merge prefixes where possible, use 'X86' instead of 'X32' (which we try to only use for gnux32 triple tests).

Merge prefixes where possible, use 'X86' instead of 'X32' (which we try to only use for gnux32 triple tests).

Merge prefixes where possible, use 'X86' instead of 'X32' (which we try to only use for gnux32 triple tests).

It's not required anymore, since we rely on another job to report
the results back to Phabricator.

Make it possible to use a relative path in command script import to the
location of the file being sourced. This allows the user to put Python
scripts next to LLDB command files and importing them without having to
specify an absolute path.

To enable this behavior pass `-c` to `command script import`. The
argument can only be used when sourcing the command from a file.

rdar://68310384

Differential revision: https://reviews.llvm.org/D89334

This is an initial attempt to start using Syntax Trees in clangd while improving state of folding ranges feature and experimenting with Syntax Tree capabilities.

Reviewed By: sammccall

Differential Revision: https://reviews.llvm.org/D88553

- Add missing tests.

Differential Revision: https://reviews.llvm.org/D90212

This reverts commit 0fc1aa22.

The number of resumes should always be positive to let's make this an
unsigned everywhere. Also remove the unused 'localhost' parameter from
ConvertArgumentsForLaunchingInShell.

Before C++17, std::string::data() was marked as const, so we can't use
it to write to the contents of the string.

Since D89812 we use llvm-pdbutil in the LLDB tests but we didn't add it to
the test dependencies.

Fixes e4cc6e9b

Replace the inline x86 watchpoint handling code with the reusable
NativeRegisterContextWatchpoint_x86.  Implement watchpoint support
in NativeThreadFreeBSD and SIGTRAP handling for watchpoints.

Un-skip all concurrent_events tests as they pass with the new plugin.

Differential Revision: https://reviews.llvm.org/D90102

This reverts commit c6ca26c0.
This breaks stage2 builds due to hitting this assert:
```
   Assertion failed: (WeightSum <= UINT32_MAX && "Expected weights to scale down to 32 bits"), function calcMetadataWeights
```
when compiling AArch64RegisterBankInfo.cpp in LLVM.

This reverts commit fdc845b3.
It seems to be a follow-up to c6372b3fb495 which will be reverted.

- Add an internal option `-amdgpu-use-aa-in-codegen` to enable or
  disable this feature. By Default, it's enabled.

Differential Revision: https://reviews.llvm.org/D89320

This reverts commit 0905bd5c.

Causing failures in multistage buildbots that I need to investigate

This reverts commit e5766f25.
Makes clang assert when building Chromium, see https://crbug.com/1142813
for a repro.