Same funcitonality, but a bit friendlier for users passing it along to
APIs that take ArrayRefs.

This test regressed with 5ade17e0, but we never noticed it because
.pass.mm tests were skipped due to a bug in our Lit config. This commit
fixes is_pointer (by essentially reverting tha part of 5ade17e0) and
also adds .pass.mm tests to the list of supported test suffixes.

We can explore how to support __is_pointer with Objective-C++ qualifiers
as a follow-up -- the main goal of this commit is to fix the regression
quickly and make sure all tests of the suite are run.

AppleClang seems to support these extensions by default, but other
compilers don't.

https://reviews.llvm.org/D77390

A PC-relative relocation referencing a non-preemptible absolute symbol
(due to STT_TLS) is not representable in -pie/-shared mode.

Differential Revision: https://reviews.llvm.org/D77021

Reviewers: hokein

Subscribers: ilya-biryukov, MaskRay, jkorous, arphaman, kadircet, usaxena95, cfe-commits

Tags: #clang

Differential Revision: https://reviews.llvm.org/D77348

This reverts commit 31b6e182.

As it was breaking `arc diff` workflow for multiple people.

Summary:
For current architect, we always require setContainingCsect to be
called on every MCSymbol got used in XCOFF context.
This is very hard to achieve because symbols gets created everywhere
 and other MCSymbol types(ELF, COFF) do not have similar rules.
It's very easy to miss setting the containing csect, and we would
need to add a lot of XCOFF specialized code around some common code area.

This patch intendeds to do
1. Rely on getFragment().getParent() to get csect from labels.
2. Only use get/setRepresentedCsect (was get/setContainingCsect)
if symbol itself represents a csect.

Reviewers: DiggerLin, hubert.reinterpretcast, daltenty

Differential Revision: https://reviews.llvm.org/D77080

1. It's redundant to explicitly check that string does not contain `PAUSE_MM`
   token if check that the `PAUSE` token is followed by an angle bracket.
2. The removed `CHECK-NOT` directives do not have trailing colons.

Summary:
This is patch is part of a series to introduce an Alignment type.
See this thread for context: http://lists.llvm.org/pipermail/llvm-dev/2019-July/133851.html
See this patch for the introduction of the type: https://reviews.llvm.org/D64790

Reviewers: courbet

Subscribers: hiraditya, llvm-commits

Tags: #llvm

Differential Revision: https://reviews.llvm.org/D77312

[X86][AVX] Add tests showing failure to use chained PACKSS/PACKUS for multi-stage compaction shuffles

The sign/zero extended top bits mean that we could use chained PACK*S ops here

Differential Revision: https://reviews.llvm.org/D77329

Summary:
This commit just tries to invert some `if`'s logic to
`return`/`continue` early.

Reviewers: jankratochvil, teemperor

Reviewed By: jankratochvil, teemperor

Subscribers: lldb-commits

Tags: #lldb

Differential Revision: https://reviews.llvm.org/D77377

Summary:
C++ defines a number of keywords that are regular identifiers in
JavaScript, e.g. `concept`:

    const concept = 1; // legit JS

This change expands the existing `IsJavaScriptIdentifier(Tok)` function
to return false for C++ keywords that aren't keywords in JS.

Reviewers: krasimir

Subscribers: jfb, cfe-commits

Tags: #clang

Differential Revision: https://reviews.llvm.org/D77311

Summary:
Add support for 3D memrefs in mlir-vulkan-runner and simple test.

Differential Revision: https://reviews.llvm.org/D77157

In the near future llvm-mc will resolve the fixups that generate
R_ARM_THUMB_PC8 and R_ARM_THUMB_PC12 at assembly time (see comments in
D72892), and forbid inter-section references. Change the LLD tests for
these relocations to use .inst and .reloc to avoid LLD tests failing when
this happens. The tests generate the same instructions, relocations
and symbols.

I will need to make equivalent changes for D75349 Arm equivalent
relocations, but this is still in review so these don't need changing
before llvm-mc.

Differential Revision: https://reviews.llvm.org/D77200

Summary:
This is patch is part of a series to introduce an Alignment type.
See this thread for context: http://lists.llvm.org/pipermail/llvm-dev/2019-July/133851.html
See this patch for the introduction of the type: https://reviews.llvm.org/D64790

Reviewers: courbet

Subscribers: hiraditya, llvm-commits

Tags: #llvm

Differential Revision: https://reviews.llvm.org/D77297

Summary:
The change in IRTranslator is not trivial but is NFC as far as I can tell.

This is patch is part of a series to introduce an Alignment type.
See this thread for context: http://lists.llvm.org/pipermail/llvm-dev/2019-July/133851.html
See this patch for the introduction of the type: https://reviews.llvm.org/D64790

Reviewers: courbet

Subscribers: hiraditya, llvm-commits

Tags: #llvm

Differential Revision: https://reviews.llvm.org/D77292

LLVM includes .clang-format files which must be respected.

Reviewed By: vsk, aprantl, djtodoro

Differential Revision: https://reviews.llvm.org/D77318

Summary: I think it would be better to require the alignment to be >= 1. It is currently confusing to allow both values.

Reviewers: courbet

Subscribers: hiraditya, llvm-commits

Tags: #llvm

Differential Revision: https://reviews.llvm.org/D77372

This pass replaces each indirect call/jump with a direct call to a thunk that looks like:

lfence
jmpq *%r11

This ensures that if the value in register %r11 was loaded from memory, then
the value in %r11 is (architecturally) correct prior to the jump.
Also adds a new target feature to X86: +lvi-cfi
("cfi" meaning control-flow integrity)
The feature can be added via clang CLI using -mlvi-cfi.

This is an alternate implementation to https://reviews.llvm.org/D75934 That merges the thunk insertion functionality with the existing X86 retpoline code.

Differential Revision: https://reviews.llvm.org/D76812

The old name was a bit misleading because the functions actually return
contributions to the corresponding sections.

Differential revision: https://reviews.llvm.org/D77302

Summary:
This patch adds parsing and dumping DWARFv5 .debug_macro section in llvm-dwarfdump,
it does not introduce any new switch. Existing switch "--debug-macro"
should be used to dump macinfo or macro section.

Reviewed By: dblaikie, ikudrin, jhenderson

Differential Revision: https://reviews.llvm.org/D73086

isGCValue should detect whether the deopt value is a GC pointer.
Currently it checks by finding the value in SI.Bases and SI.Ptrs.
However these data structures contain only those values which
have corresponding gc.relocate call. So we can miss GC value if it
does not have gc.relocate call (dead after the call).

Check GC strategy whether pointer is GC one or consider any pointer
to be GC one conservatively.

Reviewers: reames, dantrushin
Reviewed By: reames
Subscribers: hiraditya, llvm-commits
Differential Revision: https://reviews.llvm.org/D77130

Author: Xiang1 Zhang <xiang1.zhang@intel.com>
Date:   Fri Apr 3 11:25:38 2020 +0800

    Enable IBT(Indirect Branch Tracking) in JIT with CET(Control-flow Enforcement Technology)

Introduce a ThunkInserter CRTP base class from which new thunk types can inherit, e.g., thunks to mitigate https://software.intel.com/security-software-guidance/software-guidance/load-value-injection.

Differential Revision: https://reviews.llvm.org/D76811

There are applications for indirect call/branch thunks other than retpoline for Spectre v2, e.g.,

https://software.intel.com/security-software-guidance/software-guidance/load-value-injection

Therefore it makes sense to refactor X86RetpolineThunks as a more general capability.

Differential Revision: https://reviews.llvm.org/D76810

D49116 was using clang-format-diff because at the time of its writing,
it needed to handle the subversion repo as well.

Differential Revision: https://reviews.llvm.org/D77363

Summary:
Add mapping from exp2 math functions
to corresponding SVML calls.

This is a follow up and extension for llvm diff
https://reviews.llvm.org/D19544

Test Plan:
- update test case and run ninja check.
- run tests locally

Reviewers: wenlei, hoyFB, mmasten, mzolotukhin, spatel

Reviewed By: spatel

Subscribers: llvm-commits

Tags: #llvm

Differential Revision: https://reviews.llvm.org/D77114