Changes

[lldb] Fix nondeterminism in DWARFIndexCachingTest

The entries in the input map need to be sorted as well, as there's no
guarantee that the entries (ConstStrings) will be inserted in the proper
order.

[LV][SLP] Mark fptosi_sat as vectorizable

This adds fptosi_sat and fptoui_sat to the list of trivially
vectorizable functions, mainly so that the loop vectorizer can vectorize
the instruction. Marking them as trivially vectorizable also allows them
to be SLP vectorized, and Scalarized.

The signature of a fptosi_sat requires two type overrides
(@llvm.fptosi.sat.v2i32.v2f32), unlike other intrinsics that often only
take a single. This patch alters hasVectorInstrinsicOverloadedScalarOpd
to isVectorIntrinsicWithOverloadTypeAtArg, so that it can mark the first
operand of the intrinsic as a overloaded (but not scalar) operand.

Differential Revision: https://reviews.llvm.org/D124358

[NFC] Minimal refactor of TTI to avoid clangsa complaint

Differential Revision: https://reviews.llvm.org/D124754

[DebugInfo][InstrRef] Don't generate redundant DBG_PHIs

In SelectionDAG, DBG_PHI instructions are created to "read" physreg values
and give them an instruction number, when they can't be traced back to a
defining instruction. The most common scenario if arguments to a function.
Unfortunately, if you have 100 inlined methods, each of which has the same
"this" pointer, then the 100 dbg.value instructions become 100
DBG_INSTR_REFs plus 100 DBG_PHIs, where only one DBG_PHI would suffice.

This patch adds a vreg cache for MachienFunction::salvageCopySSA, if we've
already traced a value back to the start of a block and created a DBG_PHI
then it allows us to re-use the DBG_PHI, as well as reducing work.

Differential Revision: https://reviews.llvm.org/D124517

[mlir][MemRef] Return `0` for the canonical strided layout expr of a 0d memref

There can't be any strides, and the offset for the canonical expr is
always 0. Fixes #55229.

Differential Revision: https://reviews.llvm.org/D124795

[clang-format] Add a regression test for aligning macros with keywords.

Test from issue https://github.com/llvm/llvm-project/issues/54953.

[LoopVectorize] Support reductions that store intermediary result

Adds ability to vectorize loops containing a store to a loop-invariant
address as part of a reduction that isn't converted to SSA form due to
lack of aliasing info. Runtime checks are generated to ensure the store
does not alias any other accesses in the loop.

Ordered fadd reductions are not yet supported.

Differential Revision: https://reviews.llvm.org/D110235

[Analyzer] Fix assumptions about const field with member-initializer

Essentially, having a default member initializer for a constant member
does not necessarily imply the member will have the given default value.

Remove part of a2e053638bbf ([analyzer] Treat more const variables and
fields as known contants., 2018-05-04).

Fix #47878

Reviewed By: r.stahl, steakhal

Differential Revision: https://reviews.llvm.org/D124621

sanitizer: support GCC's fallthrough attribute

Fixes:
sanitizer_stack_store.cpp:257:13: warning: this statement may fall through [-Wimplicit-fallthrough=]

when being built with GCC.

Differential Revision: https://reviews.llvm.org/D124832

In MSVC compatibility mode, friend function declarations behave as function declarations

Before C++20, MSVC treated any friend function declaration as a function declaration, so the following code would compile despite funGlob being declared after its first call:

```
class Glob {
public:
  friend void funGlob();

  void test() {
    funGlob();
  }
};

void funGlob() {}
```
This proposed patch mimics the MSVC behavior when in MSVC compatibility mode

Reviewed By: rnk

Differential Revision: https://reviews.llvm.org/D124613

[mlir] improve and test TransformState::Extension

Add the mechanism for TransformState extensions to update the mapping between
Transform IR values and Payload IR operations held by the state. The mechanism
is intentionally restrictive, similarly to how results of the transform op are
handled.

Introduce test ops that exercise a simple extension that maintains information
across the application of multiple transform ops.

Reviewed By: nicolasvasilache

Differential Revision: https://reviews.llvm.org/D124778

[ValueTracking] A and (B & ~A) have no common bits set

This extends haveNoCommonBitsSet() to two additional cases, allowing
the following folds:

 * `A + (B & ~A)` --> `A | (B & ~A)`
    (https://alive2.llvm.org/ce/z/crxxhN)
 * `A + ((A & B) ^ B)` --> `A | ((A & B) ^ B)`
    (https://alive2.llvm.org/ce/z/A_wsH_)

These should further fold to just `A | B`, though this currently
only works in the first case.

The reason why the second fold is necessary is that we consider
this to be the canonical form if B is a constant. (I did check
whether we can change that, but it looks like a number of folds
depend on the current canonicalization, so I ended up adding both
patterns here.)

Differential Revision: https://reviews.llvm.org/D124763

sanitizer: use pragma clang conditionally

Use the pragma only when __clang__ is defined.

Fixes:
sanitizer_common_libcdep.cpp:101: warning: ignoring ‘#pragma clang diagnostic’ [-Wunknown-pragmas]

Differential Revision: https://reviews.llvm.org/D124829

[AArch64][SVE] Only fold frame indexes referencing SVE objects into SVE loads/stores

Currently we always fold frame indexes into SVE load/store instructions,
however these instructions can only encode VL scaled offests. This means
that when we are accessing a fixed length stack object with these
instructions, the folded in frame index gets pulled back out during frame
lowering. This can cause issues when we have no spare registers and no
emergency spill slot.

Rather than causing issues like this, don't fold in frame indexes that
reference fixed length objects.

Fixes: #55041

Differential Revision: https://reviews.llvm.org/D124457

[SLP][X86] Add test case for Issue #48223

[lldb] Fix ppc64 detection in lldb

Currently, ppc64le and ppc64 (defaulting to big endian) have the same
descriptor, thus the linear scan always return ppc64le. Handle that through
subtype.

Differential Revision: https://reviews.llvm.org/D124760

[SDAG] Extract commutative helper from haveNoCommonBitsSet() (NFC)

To make it easier to add additional patterns, which will generally
want to handle commuted top-level operands.

tsan: fix deadlock in libbacktrace

Fixes deadlock seen in GCC.

Fixes: #55226

Differential Revision: https://reviews.llvm.org/D124838

[Windows] Fix cmd line tokenization of unclosed quotes.

When cl::TokenizeWindowsCommandLine received a command line with an
unterminated double-quoted string at the end, it would discard the
text within that string. That doesn't match the behavior of the
standard Windows C library, which will return the text in the unclosed
quoted string as an argv word.

Fixed, and added extra unit tests in that area.

In some cases (specifically the one in Bugzilla #47579) this could
cause TokenizeWindowsCommandLine to return a zero-length list of
arguments, leading to an array overrun at the call site in
windows::GetCommandLineArguments. Added a check there, for extra
safety: now windows::GetCommandLineArguments will return an error code
instead of failing an assertion.

(This change was written as part of https://reviews.llvm.org/D122914,
but split into a separate commit at the last minute at the code
reviewer's suggestion, because it's fixing an unrelated bug in the
same area. The rest of D122914 will follow in the next commit.)

[Windows] Fix handling of \" in program name on cmd line.

Bugzilla #47579: if you invoke clang on Windows via a pathname in
which a quoted section closes just after a backslash, e.g.

  "C:\Program Files\Whatever\"clang.exe

then cmd.exe and CreateProcess will correctly find the binary, because
when they parse the program name at the start of the command line,
they don't regard the \ before the " as having any kind of escaping
effect. This is different from the behaviour of the Windows standard C
library when it parses the rest of the command line, which would
consider that \" not to close the quoted string.

But this confuses windows::GetCommandLineArguments, because the
Windows API function GetCommandLineW() will return a command line
containing that \" sequence, and cl::TokenizeWindowsCommandLine will
tokenize the whole string according to the C library's rules. So it
will misidentify where the program name stops and the arguments start.

To fix this, I've introduced a new variant function
cl::TokenizeWindowsCommandLineFull(), intended to be applied to the
string returned from GetCommandLineW(). It parses the first word of
the command line according to CreateProcess's rules, considering \ to
never be an escaping character; thereafter, it switches over to the C
library rules for the rest of the command line.

Reviewed By: hans

Differential Revision: https://reviews.llvm.org/D122914

Fix Clang sphinx build

It seems we don't have this option exposed via RST, so switching to use
generic backticks instead.

[ARM] Only update the successor edges for immediate predecessors of PrologueMBB

When adjusting the function prologue for segmented stacks, only update
the successor edges of the immediate predecessors of the original
prologue.

Differential Revision: https://reviews.llvm.org/D122959

sanitizer: Fix fallthrough detection.

First check for clang::fallthrough attribute that resolves:

sanitizer_stack_store.cpp:258:7: error: use of the 'fallthrough'
attribute is a C++17 extension [-Werror,-Wc++17-attribute-extensions]

[analyzer] Check for std::__addressof for inner pointer checker

This is an extension to diff D99260. This adds an additional exception
for `std::__addressof` in `InnerPointerChecker`.

Patch By alishuja (Ali Shuja Siddiqui)!

Reviewed By: martong, alishuja

Differential Revision: https://reviews.llvm.org/D109467

AMDGPU/GISel: Update some MIR tests to reduce future churn

The default output format of the update_mir_test_checks.py script has
changed since some of these tests were generated.

Also, an upcoming commit will introduce differences between GFX9 and
GFX10 in the legalization of G_MUL.

[Linalg] Remove Optional from getStaticLoopRanges interface method.

It is very wrong if the ranges can't be infered. It's also checked in
verifyStructuredOpInterface, so we don't need the Optional return type.

Reviewed By: springerm

Differential Revision: https://reviews.llvm.org/D124596

[pseudo] Simplify the forest dump, NFC.

The code was written to handle nullable grammar, and we disallow
nullable grammar, so it is not necessary to keep it around.

Differential Revision: https://reviews.llvm.org/D124827

[Doc] Refine description of llvm.is_fpclass

AMDGPU: Remove redundant call to MachineInstrBuilder::setMBB

setInstrAndDebugLoc also sets the basic block automatically.

Differential Revision: https://reviews.llvm.org/D124809

[clang][AArch64][SVE] Implement conditional operator for SVE vectors

This patch adds support for the conditional (ternary) operator on SVE
scalable vector types in C++, matching the behaviour for NEON vector
types. Like the conditional operator for NEON types, this is disabled in
C mode.

Differential Revision: https://reviews.llvm.org/D124091

Revert "[lldb] Fix ppc64 detection in lldb"

This reverts commit f114f009486816ed4b3bf984f0fbbb8fc80914f6.

Due to hitting an assert on our lldb bots:
https://lab.llvm.org/buildbot/#/builders/96/builds/22715

../llvm-project/lldb/source/Plugins/Process/elf-core/ThreadElfCore.cpp:170:
virtual lldb::RegisterContextSP ThreadElfCore::CreateRegisterContextForFrame(
lldb_private::StackFrame *): Assertion `false && "Architecture or OS not supported"' failed.

[lldb][NFC] Add more tests for GenerateOptionsUsage

This adds a few targeted tests to make sure that when refactoring
this function later I don't break these properties.

Some are tested in passing elsewhere but this makes it more
obvious what went wrong when it fails.

This doesn't cover everything the function does, I couldn't
find any examples that would exercise some of the code.

Reviewed By: jingham

Differential Revision: https://reviews.llvm.org/D123500

[pseudo] Implement the GLR parsing algorithm.

This patch implements a standard GLR parsing algorithm, the
core piece of the pseudoparser.

- it parses preprocessed C++ code, currently it supports correct code
  only and parse them as a translation-unit;
- it produces a forest which stores all possible trees in an efficient
  manner (only a single node being build for per (SymbolID, Token Range));
  no disambiguation yet;

Differential Revision: https://reviews.llvm.org/D121150

[demangler] Fold expressions of .* and ->*

(Exitingly) a fold expression's operators include .* and ->*, but we
failed to demangle them as we categorize those as MemberExprs, not
BinaryExprs.

Reviewed By: dblaikie

Differential Revision: https://reviews.llvm.org/D123305

[SDAG] Handle A and B&~A in haveNoCommonBitsSet()

This is the DAG variant of D124763. The code already handles the
general pattern, but not this degenerate case.

This allows folding A + (B&~A) to A | (B&~A) which further holds
to A | B.

Handling on the SDAG level is needed because in the motivating
case the add is actually a getelementptr, which only gets converted
into an add on the SDAG level. However, this patch is not quite
sufficient to handle the getelementptr case yet, because of an
interfering demanded bits simplification.

Differential Revision: https://reviews.llvm.org/D124772

[gn build] Port eac22d0754f7

Revert "[pseudo] Implement the GLR parsing algorithm."

This breaks some buildbots (on the declaration GSS& GSS), will fix it
later.

This reverts commit eac22d0754f70df10ea0eb6f59cbd1ef012ab5a4.

[gn build] Port 860eabb3953a

Fix a typo in an OpenMP test

This fixes the typo and corrects the default OpenMP version being
tested.

Add explicit OpenMP 5.0 case for version macros; NFC

This adds an explicit case for OpenMP 5.0 as a reminder to still define
the correct macro value when the default OpenMP version changes in the
future.

[bazel] Add test targets for dataflow framework

Differential Revision: https://reviews.llvm.org/D124819

[X86] const-shift-of-constmasked.ll - replace X32 check prefix with X86

We try to only use X32 for gnux32 triple tests

[X86] load-local-v3i129.ll - add checks for targets with fast/slow shld funnel shift ops

[lldb][NFC] Simplify part of Options::GenerateOptionUsage

Use llvm::enumerate, remove an unused arg name stream and
replace repeated uses of indexing to get the option def.

We could use map instead of multimap but I'm not 100% that
would be NFC. All short options should be unique in theory.

Depends on D123500

Reviewed By: JDevlieghere

Differential Revision: https://reviews.llvm.org/D123501

[AArch64] Support for Ampere1 core

Add support for the Ampere Computing Ampere1 core.
Ampere1 implements the AArch64 state and is compatible with ARMv8.6-A.

Differential Revision: https://reviews.llvm.org/D117112

[PowerPC] Regenerate urem-seteq-illegal-types.ll

Remove superfluous whitespace

[X86] Add additional add of and not tests (NFC)

Add tests for cases involving a truncated not.

[AArch64] Add native CPU detection for Ampere1

Map the IMPLEMENTOR ID 0xc0 (Ampere Computing) and CPU ID 0xac3
(Ampere1) to ampere1.

Differential Revision: https://reviews.llvm.org/D117111

[BOLT] [NFC] Remove unused variable

This patch fixes a warning from -Wunused-but-set-variable
MismatchedBranches are counted, but are never reported.
Since evaluateProfileData() should already identify and report
these cases, we can safely remove the unused variable.

Reviewed By: rafauler

Differential Revision: https://reviews.llvm.org/D124588

[lldb][NFC] Refactor printing of short options in help

Instead of building a set twice for optional and required,
build a set for each while walking the options once.

Then take advantage of set being sorted meaning we don't
have to enforce the upper/lower order ourselves.

Just cleaned up the formatting on the later loops.
Combined the if conditions and used a single line if.

Depends on D123501

Reviewed By: jingham

Differential Revision: https://reviews.llvm.org/D123502

[NFC][GVNSink] Don't pretend that iteration is over instructions when it's actually over blocks

Differential Revision: https://reviews.llvm.org/D124764

[X86] Autogen a few tests for ease of update [nfc]

[Clang][OpenMP] Add the support for floating-point variables for specific atomic clauses

Currently when using `atomic update` with floating-point variables, if
the operation is add or sub, `cmpxchg`, instead of `atomicrmw` is emitted, as
shown in [1].  In fact, about three years ago, llvm-svn: 351850 added the
support for FP operations. This patch adds the support in OpenMP as well.

[1] https://godbolt.org/z/M7b4ba9na

Reviewed By: jdoerfert

Differential Revision: https://reviews.llvm.org/D124724

[SCEV] Regenerate test checks (NFC)

[ELF] Fix branch range computation when picking ThunkSection

Similar to D117734. Take AArch64 as an example when the branch range is +-0x8000000.

getISDThunkSec returns `ts` when `src-0x8000000-r_addend <= tsBase < src-0x8000000`
and the new thunk will be placed in `ts` (`ts->addThunk(t)`). However, the new
thunk (at the end of ts) may be unreachable from src. In the next pass,
`normalizeExistingThunk` reverts the relocation back to the original target.
Then a new thunk is created and the same `ts` is picked as before. The `ts` is
still unreachable.

I have observed it in one test with a sufficiently large r_addend (47664): there
are initially 245 Thunk's, then in each pass 14 new Thunk's are created and get
appended to the unreachable ThunkSection. After 15 passes lld fails with
`thunk creation not converged`.

The new test aarch64-thunk-reuse2.s checks the case.

Without `- pcBias`, arm-thumb-thunk-empty-pass.s and arm-thunk-multipass-plt.s
will fail.

Reviewed By: peter.smith

Differential Revision: https://reviews.llvm.org/D124653

[X86] Add test showing failure to modulo the rotation amounts before merging an inner rotation

Thanks to @spatel for the test case

[RFC] Add and sort decl to maintain order instead of inserting in order

ASTWriter::associateDeclWithFile shows a lot in clangd perf profile due to O(n^2) behaviour in insertion of DeclIDs in SortedFileDeclIDs. Instead of doing that, this patch just appends it to the DeclIDs vector and sorts them at the end.

Reviewed By: akyrtzi

Differential Revision: https://reviews.llvm.org/D124840

[DAG] Fix issue with rot(rot(x,c1),c2) -> rot(x,c1+c2) fold with unnormalized rotation amounts

Don't assume the rotation amounts have been correctly normalized - do it as part of the constant folding.

Also, the normalization should be performed with UREM not SREM.

[mlir][LLVMIR] Add support for translating Switch instruction

Add support for translating llvm::SwitchInst.

Differential Revision: https://reviews.llvm.org/D124628

[llvm-ar] Modify usage printouts to use the correct toolname

Modify llvm-ar and llvm-ranlib to use the actual name of the executable
when printing the usage text via the '--help' flag.

Reviewers: Maskray, jhenderson, gbreynoo

Differential Revision: https://reviews.llvm.org/D124445

[libc] fix strtold tests on 32 bit systems

This patch fixes the string to long double tests for systems that use
long double is double, and don't support uint128.

Reviewed By: sivachandra, lntue

Differential Revision: https://reviews.llvm.org/D124803

[libc] add printf writer

The printf implmentation is made up of three main pieces, the parser,
the converter, and the writer. This patch adds the implementation for
the writer, as well as the function for writing to a string, along with
tests.

Reviewed By: sivachandra, lntue

Differential Revision: https://reviews.llvm.org/D124421

BuildLibCalls: simplify switch statement slightly

Per feedback on D123086 after submit.

Also added a test for vec_malloc et al attribute inference to show it's
doing the right thing.

The new tests exposed a defect, corrected by adding vec_free to the list of
free functions in MemoryBuiltins.cpp, which had been overlooked all the
way back in D94710, over a year ago.

Differential Revision: https://reviews.llvm.org/D124859

tsan: for unittests, change to use test fixtures to clear racy stacks

After cd0a5889d71, unittest would run in shard mode where many tests
share a single process. Need to clear some global state to make the test
results stable.

Reviewed By: thetruestblue, rsundahl

Differential Revision: https://reviews.llvm.org/D124591

[mlir] Add sin & cos ops to complex dialect

Also adds conversions for those ops to math + arith.

Differential Revision: https://reviews.llvm.org/D124773

[lldb] Add setting for max depth of value object printing (NFC)

This adds a setting (`target.max-children-depth`) that will provide a default value for the `--depth` flag used by `expression` and `frame variable`.

The new setting uses the same default that's currently fixed in source: `UINT32_MAX`.

This provides two purposes:

1. Allowing downstream forks to provide a customized default.
2. Allowing users to set their own default.

Following `target.max-children-count`, a warning is emitted when the max depth is reached. The warning lets users know which flags or settings they can customize. This warning is shown only when the limit is the default value.

rdar://87466495

Differential Revision: https://reviews.llvm.org/D123954

[randstruct] Move initializer check to be more effective

If a randomized structure has an initializer with a dedicated
initializer in it, the field initialzed by that dedicated initializer
may end up at the end of the RecordDecl. This however may skip the
random layout initization check.

  struct t {
     int a, b, c, d, e;
  } x = { .a = 2, 4, 5, 6 };

Let's say that "a" is lands as the last field after randomization. The
call to CheckDesignatedInitializer sets the iterator to the end of the
initializer list. During the next iteration of the initializer list
check, it detects that and fails to issue the error about initializing
a randomized struct with non-designated initializer. Instead, it issues
an error about "excess elements in struct initializer", which is
confusing under these circumstances.

Reviewed By: aaron.ballman

Differential Revision: https://reviews.llvm.org/D124694

[pseudo] Implement the GLR parsing algorithm.

This patch implements a standard GLR parsing algorithm, the
core piece of the pseudoparser.

- it parses preprocessed C++ code, currently it supports correct code
  only and parse them as a translation-unit;
- it produces a forest which stores all possible trees in an efficient
  manner (only a single node being build for per (SymbolID, Token Range));
  no disambiguation yet;

Reland with a fix for g++'s -fpermissive error on previous declaration `GSS& GSS;`.

Differential Revision: https://reviews.llvm.org/D121150

[gn build] Port 9f38da258ea7

[clang-format][NFC] Clean up tryToParseLambdaIntroducer()

Differential Revision: https://reviews.llvm.org/D124818

Minor correction in bitreverse intrinsic semantics

Differential Revision: https://reviews.llvm.org/D124861

Fix some places where PseudoObjectExpr handling assumed that a
PseudoObjectExpr is only used for ObjC properties and subscripts.

For now, these assumptions are generally correct, but that's not part of
the design of PseudoObjectExpr. No functionality change intended.

ExtractAPI: Use %clang_cc1 and -verify in enum.c

Fix one test (enum.c) in ExtractAPI to use %clang_cc1 and -verify
instead of calling the full driver and FileCheck. This is an example for
my comment from https://reviews.llvm.org/D121873.

Differential Revision: https://reviews.llvm.org/D124634

[BOLT][TEST] Fix test failures on AArch64 builder

Address X86 tests failures on AArch64 builder:
https://lab.llvm.org/staging/#/builders/211/builds/82

Inputs fail to cross-compile due to a missing header:
```
/usr/include/stdio.h:27:10: fatal error: 'bits/libc-header-start.h' file not found
#include <bits/libc-header-start.h>
```

As inputs are linked with `-nostdlib` anyway, don't include stdio.h.

Reviewed By: yota9

Differential Revision: https://reviews.llvm.org/D124863

Revert "[BOLT][TEST] Fix test failures on AArch64 builder"

This reverts commit 88b6d3211c836021a9b570ac6090dd1bf42da449.

[OpenMP] Possible fix for sporadic test failure from loop_dispatch.c

This patch tries to fix sporadic test failure after the change
https://reviews.llvm.org/D122107.
Made the test wait until every thread has at least one loop iteration.

Differential Revision: https://reviews.llvm.org/D124812

[pseudo] Print the GSS::Node details when the unittest fails, NFC.

[clang][OpenMP] Local variable alignment incorrect with align clause

If alignment specified with align clause is less than natural alignment for
list item type, the alignment should be set to the natural alignment.

See OMP5.1 specification, page 185, lines 7-10

Differential Revision: https://reviews.llvm.org/D124676

[InstCombine] add tests for min/max with shuffled operands; NFC

Issue #46238

[InstCombine] move shuffle after min/max with same-shuffled operands

This is an intrinsic version of the existing fold for binops.
As a first step, I only allowed min/max, but the code is set
up to make adding more intrinsics easy (with more or less than
2 arguments).

This (and possible follow-ups) are discussed in issue #46238.

[pseudo] Use a real language option in the parser.

Differential Revision: https://reviews.llvm.org/D124831

[mlir][sparse] Add lowering for unary and binary ops

Adding lowering for Unary and Binary required several changes due to
their unique nature of containing custom code for different "regions"
of the sparse structure being operated on. Along with a Kind, a pointer
to the Operation is passed along to be merged once the lattice
structure is figured out.

The original operation is maintained, as it is required for subsequent
lattice decisions. However, sparse_tensor.binary has some branches
are considered as fully handled and therefore are marked with as
kBinaryBranch to distinguish them.

A unique aspect of the custom code is that sometimes the desired result
is no result at all -- i.e. a user wants overlapping sparse entries to
become empty in the output. The solution to this is to return an
uninitialized Value(), which is checked and handled elsewhere in the
code and results in nothing being written to the output tensor for that
case.

Reviewed By: aartbik

Differential Revision: https://reviews.llvm.org/D123057

[riscv] Add debug printing support for VSETVLIInfo class [nfc]

[bazel] Fix the build after 2c3326608460

[mlir] Fix Visual Studio warnings

There are only a couple of warnings when compiling with VS on Windows. This fixes the last remaining warnings so that we can enable LLVM_ENABLE_WERROR on the mlir windows bot.

Reviewed By: rriddle

Differential Revision: https://reviews.llvm.org/D124862

[SCEV] Removed an unnecessary assertion

The assertion is to check we always get backedge taken count
(`BECount`) of zero when the exit condition is in select form
(`isa<BinaryOperation>(ExitCond)`) and the exit limit for the
first operand is zero `EL0.ExactNotTaken->isZero()`). However
the assertion is checking that the exit condition is NOT in
select form. Removing the the whole assertion since we now handle
select form in ScalarEvolution::getSequentialMinMaxExpr.

Reviewed By: reames, nikic

Differential Revision: https://reviews.llvm.org/D122835

[mlir][sparse] add missing types to from/to-MLIR conversion routines

This will enable our usual set of element types in external
environments, such as PyTACO support.

Reviewed By: bixia

Differential Revision: https://reviews.llvm.org/D124875

Fix a buildbot warning [nfc]

Fix DXBC magic parsing

This gets identify_magic working correctly for DXContainer files

Fix zero-width bitfield extracts to emit 0

Fixes #55129

[mlir][sparse] fix build issue with unused local under opt builds

Reviewed By: rdzhabarov

Differential Revision: https://reviews.llvm.org/D124883

[lldb] Session transcript should use the async debugger streams

When writing out the session transcript, print output to the
asynchronous debugger stream to prevent it from potentially interleaving
with other output.

Differential revision: https://reviews.llvm.org/D124873

[lldb] Add a function to check if lldb is running in an interactive session

This patch adds a function to check if lldb is running in an interactive
debug session. Currently this API only works on macOS. It's expected to
be used in combination with Host::OpenFileInExternalEditor.

Differential revision: https://reviews.llvm.org/D124872

Implement support for __llvm_addrsig for MachO in llvm-mc

The __llvm_addrsig section is a section that the linker needs for safe icf.
This was not yet implemented for MachO - this is the implementation.
It has been tested with a safe deduplication implementation inside lld.

Reviewed By: MaskRay

Differential Revision: https://reviews.llvm.org/D123751

[BOLT][TEST] Fix test failures on AArch64 builder

Address X86 tests failures on AArch64 builder:
https://lab.llvm.org/staging/#/builders/211/builds/82

Inputs fail to cross-compile due to a missing header:
```
/usr/include/stdio.h:27:10: fatal error: 'bits/libc-header-start.h' file not found
#include <bits/libc-header-start.h>
```

As inputs are linked with `-nostdlib` anyway, don't include stdio.h.

Reviewed By: yota9

Differential Revision: https://reviews.llvm.org/D124863

llvm-reduce: Reduce includes

AMDGPU: Regenerate test checks

AMDGPU: Remove some invalid kill flags in tests

These killed registers need to be live out of the block but the
verifier wasn't catching it.

ARM: Cleanup MIR test

Drop IR section, renumber registers, regenerate to use -NEXT

ARM: Fix using undefined virtual registers in test

The verifier apparently doesn't work correctly and should have
caught this.

[trace][intelpt] Fix out-of-bounds access.

The StringRef single argument constructor expects a null-terminated
string.  Explicitly pass the size to prevent reading pass the end
of the array.

[psuedo] Fix for unused warning by moving code into debug macro.

[riscv] Add a couple more vsetvli tests