emitCallAndSwitchStatement creates placeholder allocas to pass
to these, so the types need to match.

This was making decisions based on BBsToDelete, while being
used to determine BBsToDelete which doesn't really work.
Additionally, this is a lot of logic just to avoid deleting
the entry block when we can just skip it.

Make load and store non-atomic. Make the others monotonic.

We could probably try to incrementally relax the orderings; not sure
how useful that would be.

Removing volatile may help optimization passes do more to the IR. However,
this will increase scheduler freedom.

Try to remove each flag from instructions. It may make more
sense to introduce these flags instead.

A future change will skip the reduction for functions with
unreachable blocks. Also stop using the hard to follow python based
interestingness check in favor of FileCheck.

All our users have migrated to ld64.lld so we no longer need libLTO.

Differential Revision: https://reviews.llvm.org/D135471

Previously we would only look for an AND or a negate. But its
possible there is a negate after looking through the AND.

This reverts commit 74e4f778, which caused a
~40% increase in SLoc address space utilization on certain cases. See
https://reviews.llvm.org/D136539#3877872.

This reverts commit f83347b0. This is necessary
to revert 74e4f778, which caused a ~40% increase
in SLoc address space utilization on certain cases. See
https://reviews.llvm.org/D136539#3877872.

Discarding the init symbol is expected to be uncommon (it represents metadata
in the MaterializationUnit that is relevant to dlopen, and this will not
usually be fully duplicated in some other location), however if a client has
marked an InitSymbol as weak and it is selected to be discarded then we should
keep the data structure consistent.

Since aedeb8d5, which switched to EPC-based eh-frame registrationin LLJIT,
the eh-frame registration functions need to be forcibly linked into the target
process.

Failure to link the eh-frame registration functions triggered a test failure in
https://green.lab.llvm.org/green/job/clang-stage1-RA/31497, which was fixed by
forcibly linking the registration functions into that test case in saf2b2214
(rdar://101083784), however it has also caused some tests (e.g. the C API unit
tests) that depend on successful construction of an LLJIT instance to be
skipped.

Moving the forcible registration into LLJIT.cpp fixes the general issue.

To prepare for upcoming change.

Reviewed By: ABataev

Differential Revision: https://reviews.llvm.org/D136553

This patch fixes:

  mlir/lib/Conversion/AMDGPUToROCDL/AMDGPUToROCDL.cpp:128:10: warning:
  variable ‘llvm2xI32’ set but not used [-Wunused-but-set-variable]

The last use of llvm2xI32 was removed on July 6, 2022 in commit
63295622.

This patch fixes:

  clang/lib/AST/Interp/ByteCodeExprGen.cpp:978:24: warning: variable
  ‘T’ set but not used [-Wunused-but-set-variable]

T and ReturnType were introduced on August 19, 2022 in commit
8e41e6a4.

Their last uses were removed on October 13, 2022 in commit
0e754cfa.

On AVX512, extract legal bool vectors as bool subvectors before bitcasting to scalars to avoid spilling to stack.

This helps rust which internally represents bool vectors as bool arrays

It also exposes more missed opportunities to use the KADD instruction to add masks together before moving to gpr

Fixes #58546

Address the commit https://reviews.llvm.org/D136015#inline-1313479

Reviewed By: spatel
Differential Revision: https://reviews.llvm.org/D136340

We only need this for std::abs, but since we're also testing the sign of the same value, then its not really necessary.

As detailed in https://commondatastorage.googleapis.com/chromium-browser-clang/llvm-include-analysis.html - APInt.h is the generic header with the highest expanded size, due to the dependency on <cmath>

This is already included in APInt.h

[DAG] Add freeze(sign/zero_extend_vector_inreg(x)) -> sign/zero_extend_vector_inreg(freeze(x)) folding

Reviewed By: gchatelet

Differential Revision: https://reviews.llvm.org/D135540

Resolves undefined references to vtable for clang::ASTConsumer,
PCHContainerOperations::PCHContainerOperations(), and
CodeGenOptions::CodeGenOptions().

Reviewed By: Izaron

Differential Revision: https://reviews.llvm.org/D136546

Add X86 isGuaranteedNotToBeUndefOrPoisonForTargetNode / canCreateUndefOrPoisonForTargetNode overrides and add X86ISD::PSHUFD/VPERMILPI handling.

Its going to be easier to add some basic target shuffle handling than generic ISD::SHUFFLE_VECTOR nodes which is going to need special handling for unused/undef operands.

Both freeze_pshufd and freeze_permilps tests lower to vpermilps, but only in domain switching later on.

This patch fixes:

  mlir/include/mlir/Tools/mlir-translate/Translation.h:93:35: warning:
  extra ‘;’ [-Wpedantic]

Fixes #58307

Reviewed By: nikic

Differential Revision: https://reviews.llvm.org/D135738

If the divisor is even, we can first shift the dividend and divisor
right by the number of trailing zeros. Now the divisor is odd and we
can do the original algorithm to calculate a remainder. Then we shift
that remainder left by the number of trailing zeros and add the bits
that were shifted out of the dividend.

Reviewed By: RKSimon

Differential Revision: https://reviews.llvm.org/D135541

This reverts commit e8b3ffa5.

The AMDGPU/mad_64_32.ll seems to fail on some of the build bots but
passes locally. I'm really confused.