Replace some hard tabs with spaces.  NFC.

The test split-arg-dbg-value.ll has a host-specific path in the
full output captured by update_llc_test_checks.

Fix for test failures introduced in https://reviews.llvm.org/D69402

Tags: #llvm

(check commit access)

Summary:
There are `*_ov()` functions already, so at least for consistency it may be good to also have saturating variants.
These may or may not be needed for `ConstantRange`'s `shlWithNoWrap()`

Reviewers: spatel, nikic

Reviewed By: nikic

Subscribers: hiraditya, dexonsmith, llvm-commits

Tags: #llvm

Differential Revision: https://reviews.llvm.org/D69398

Summary:
There are `*_ov()` functions already, so at least for consistency it may be good to also have saturating variants.
These may or may not be needed for `ConstantRange`'s `mulWithNoWrap()`

Reviewers: spatel, nikic

Reviewed By: nikic

Subscribers: hiraditya, dexonsmith, llvm-commits

Tags: #llvm

Differential Revision: https://reviews.llvm.org/D69397

Summary:
Ternary expression checks for ISD::ADD instead of ISD::UADDO inside DAGTypeLegalizer::ExpandIntRes_UADDSUBO.
This means the ternary expression will evaluate to ISD::SUBCARRY for both ISD::UADDO and ISD::USUBO nodes.
Targets are likely to implement both, so impact will be very limited in practice.

Reviewers: bogner, lebedev.ri

Reviewed By: lebedev.ri

Subscribers: lebedev.ri, hiraditya, llvm-commits

Tags: #llvm

Differential Revision: https://reviews.llvm.org/D68123

[clang-format] [NFC] update the documentation in Format.h to allow dump_format_style.py to get a little closer to being correct.

Summary:
Running dump_format_style.py on the tip of the trunk causes ClangFormatStyleOptions.rst to have changes, which I think ideally it shouldn't.

Some recent commits have meant Format.h and ClangFormatStyleOptions.rst have become out of sync such that dump_format_style.py either couldn't be run or generated incorrect .rst files.

It's also important to remember to edit the IncludeStyles from Tooling.

Make a couple of changes {D6833} {D64695} which came from recent clang-format commits that missed this step. There are still a couple of other changes  from commit {D67541} {D68296} which also need to be looked at, but I'd like to park these first two changes first.

The authors of these original commits I've included in the reviewers, I'm happy to work on the changes, just really need to know which is the ground truth of the changes you want to keep (whats in the Format.h) or what is in the ClangFormatStyleOptions.rst

Reviewers: klimek, mitchell-stellar, owenpan, jvoung, Manikishan, sammccall

Reviewed By: mitchell-stellar

Subscribers: cfe-commits

Tags: #clang-format, #clang

Differential Revision: https://reviews.llvm.org/D69404

Summary:
The variable LLVM_NO_DEAD_STRIP is set in LLVM cmake files when building executables that might make use of plugins .The name of the variable does not convey the actual intended usage (i.e. for use with tools that have plugins), just what the eventual effect of setting in on some (i.e. not garbage collecting unused symbols).

This patch renames it to LLVM_SUPPORT_PLUGINS to convey the intended usage, which will allow subsequent patches to add behavior to support that in different ways without confusion about whether it will do on, for example, non-gnu platforms.

Reviewers: hubert.reinterpretcast, stevewan

Reviewed By: stevewan

Subscribers: cfe-commits, mgorny, llvm-commits

Tags: #llvm, #clang

Differential Revision: https://reviews.llvm.org/D69356

Details:
- nconflicts field initialized;
- formatting fix (moved declaration out of the long line);
- count conflicts in new hash as opposed to old one.

Differential Revision: https://reviews.llvm.org/D68036

Complete fp16 support by ensuring that load extension / truncate store
operations are properly expanded.

Reviewers: asb, lenary
Reviewed By: lenary
Differential Revision: https://reviews.llvm.org/D69246

selectImpl is able to select G_FSQRT when we set bank for vector
operands to fprb. Add detailed tests.
Note: G_FSQRT is generated from llvm-ir intrinsics llvm.sqrt.*,
and at the moment MIPS is not able to generate this intrinsic for
vector type (some targets generate vector llvm.sqrt.* from calls
to a builtin function).
__builtin_msa_fsqrt_<format> will be transformed into G_FSQRT
in legalizeIntrinsic and selected in the same way.

Differential Revision: https://reviews.llvm.org/D69376

Summary:
During the compilation of the `clangd/refactor/tweaks/ExpandAutoType.cpp`, MSVC returns the following error:

llvm-monorepo\llvm\tools\clang\tools\extra\clangd\refactor\tweaks\ExpandAutoType.cpp(85): error C2146: syntax error: missing ')' before identifier 'and'
llvm-monorepo\llvm\tools\clang\tools\extra\clangd\refactor\tweaks\ExpandAutoType.cpp(85): error C2065: 'and': undeclared identifier
llvm-monorepo\llvm\tools\clang\tools\extra\clangd\refactor\tweaks\ExpandAutoType.cpp(86): error C2143: syntax error: missing ';' before '<template-id>'
llvm-monorepo\llvm\tools\clang\tools\extra\clangd\refactor\tweaks\ExpandAutoType.cpp(73): fatal error C1075: '{': no matching token found

So, && must be used instead of `and`.

Patch By Pavel Samolysov (@psamolysov) !

Reviewers: kadircet

Reviewed By: kadircet

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

Tags: #clang, #clang-tools-extra

Differential Revision: https://reviews.llvm.org/D69427

It isn't really necessary for them to run the clang driver, and it's
more efficient not to (and also more stable against driver changes).
Now they invoke cc1 directly, more like the analogous NEON tests.

Reviewers: dmgreen

Subscribers: kristof.beyls, cfe-commits

Tags: #clang

Differential Revision: https://reviews.llvm.org/D69426

SHT_NOTE needs at least an empty "Content" in the YAML description.
Should fix http://lab.llvm.org:8011/builders/llvm-clang-lld-x86_64-scei-ps4-ubuntu-fast

SHT_NOTE is the section that consists of
namesz, descsz, type, name + padding, desc + padding data.
This patch teaches yaml2obj, obj2yaml to dump and parse them.

This patch implements the section how it is described here:
https://docs.oracle.com/cd/E23824_01/html/819-0690/chapter6-18048.html
Which says: "For 64–bit objects and 32–bit objects, each entry is an array of 4-byte words in
the format of the target processor"

The official specification is different
http://www.sco.com/developers/gabi/latest/ch5.pheader.html#note_section
And says: "n 64-bit objects (files with e_ident[EI_CLASS] equal to ELFCLASS64), each entry is an array
of 8-byte words in the format of the target processor. In 32-bit objects (files with e_ident[EI_CLASS]
equal to ELFCLASS32), each entry is an array of 4-byte words in the format of the target processor"

Since LLVM uses the first, 32-bit way, this patch follows it.

Differential revision: https://reviews.llvm.org/D68983

Summary:
Incoming define out-of-line tweak requires access to index.

This patch simply propogates the index in ClangdServer to Tweak::Selection while
passing the AST. Also updates TweakTest to accommodate this change.

Reviewers: ilya-biryukov

Subscribers: MaskRay, jkorous, arphaman, usaxena95, cfe-commits

Tags: #clang

Differential Revision: https://reviews.llvm.org/D69165

Summary:
This is an helper for incoming move definition out-of-line action to
figure out possible insertion locations for definition of a qualified name.

Reviewers: hokein, ilya-biryukov

Subscribers: MaskRay, jkorous, arphaman, usaxena95, cfe-commits

Tags: #clang

Differential Revision: https://reviews.llvm.org/D68024

Summary:
Initial version of DefineInline action that will fully qualify every
name inside function body.

Reviewers: sammccall, ilya-biryukov, hokein

Tags: #clang

Differential Revision: https://reviews.llvm.org/D66647

Summary:
Introduces DefineInline action and initial version of
availability checks.

Reviewers: sammccall, ilya-biryukov, hokein

Tags: #clang

Differential Revision: https://reviews.llvm.org/D65433

This just reorders the code and removes an assignment
of an empty string for the case when a relocation has
no symbol associated. With this our output becomes
cleaner and shorter.

Differential revision: https://reviews.llvm.org/D69255

SHT_SYMTAB_SHNDX should have the same number of entries as the symbol table
associated (https://www.sco.com/developers/gabi/latest/ch4.sheader.html)

We currently can report the following message:
"SHT_SYMTAB_SHNDX section has sh_size (24) which is not equal to the number of symbols (2)"

It is just broken. This patch refines/fixes it.

Differential revision: https://reviews.llvm.org/D69305

Patch by Miloš Stojanović

Differential Revision: https://reviews.llvm.org/D69381

Re-sorted the module names in clang/utils/TableGen/CMakeLists.txt back
into alphabetical order.

renamable $x6 = ADDI8 $x1, -80      ;;; 0 is replaced with -80
renamable $x6 = ADD8 killed renamable $x6, renamable $x5
STW killed renamable $r3, 4, killed renamable $x6 :: (store 4 into %ir.14, !tbaa !2)

After PEI there is a peephole opt opportunity to combine above -80 in ADDI8 with 4 in the STW to eliminate unnecessary ADD8.

Expected result:
renamable $x6 = ADDI8 $x1, -76
STWX killed renamable $r3, renamable $x5, killed renamable $x6 :: (store 4 into %ir.6, !tbaa !2)

Reviewed by: stefanp

Differential Revision: https://reviews.llvm.org/D66329

Differential Revision: https://reviews.llvm.org/D69400

This was required for blocking merge commits, but now that we have
branch protections, we don't need this.

This allows pushing without specifying a branch, which is what the
documentations says to do.

Summary:
- As variadic parameters have the lowest rank in overload resolution,
  without real usage of `va_arg`, they are commonly used as the
  catch-all fallbacks in SFINAE. As the front-end still reports errors
  on calls to `va_arg`, the declaration of functions with variadic
  arguments should be allowed in general.

Reviewers: jlebar, tra, yaxunl

Subscribers: cfe-commits

Tags: #clang

Differential Revision: https://reviews.llvm.org/D69389