Patch enables custom lowering for MVT::nxv4bf16 because otherwise
the refactored test file triggers a selection failure.

The reason for the refactoring it to highlight cases where the
generated code is wrong.

This patch removes CondBit and Predicate from VPBasicBlock. To do so,
the patch introduces a new branch-on-cond VPInstruction opcode to model
a branch on a condition explicitly.

This addresses a long-standing TODO/FIXME that blocks shouldn't be users
of VPValues. Those extra users can cause issues for VPValue-based
analyses that don't expect blocks. Addressing this fixme should allow us
to re-introduce 266ea446.

The generic branch opcode can also be used in follow-up patches.

Depends on D123005.

Reviewed By: Ayal

Differential Revision: https://reviews.llvm.org/D126618

virtual is redundant since the function is already declared 'override'.

Detect identifiers that are confusable according to Unicode definition

        http://www.unicode.org/reports/tr39/#Confusable_Detection

and have conflicting scopes.

Differential Revision: https://reviews.llvm.org/D112916

Sorry for the breakage.

Fixes #54803
Fixes #53133

Reviewed By: ldionne, #libc

Spies: libcxx-commits, mgorny

Differential Revision: https://reviews.llvm.org/D125221

When running the llvm-test-suite with flang, we get a lot of failures
because of the output of the `STOP` statement. We can workaround them by
setting `NO_STOP_MESSAGE=1` in the environment. This patch adds a few
words about it to the docs about the Fortran part of the llvm-test-suite.

See also https://reviews.llvm.org/D126360

This patch adds tests for memory_order clause for atomic update and
capture operations. This patch also adds a check for making sure that
the operations inside and omp.atomic.capture region do not specify the
memory_order clause.

Reviewed By: kiranchandramohan, peixin

Differential Revision: https://reviews.llvm.org/D126195

When promoting a shift, make sure we only fetch the second operand
after promoting the first. Load promotion may replace users of the
old load, and we don't want to be left with a dangling reference to
the old load instruction.

The crashing test case is from https://reviews.llvm.org/D126689#3553212.

Differential Revision: https://reviews.llvm.org/D126886

The ZeroWidth paramter is unused in every call site of VerifyBitField.

Previously, we were treating a move in the lambda capture as if it happened
within the body of the lambda, not within the function that defines the lambda.

This fixes the same bug as https://reviews.llvm.org/D119165 (which it appears
may have been abandoned by the author?) but does so more simply.

Reviewed By: njames93

Differential Revision: https://reviews.llvm.org/D126780

This reverts commit 9980c997.

Caused assertion failures: https://reviews.llvm.org/D115462#3555350

`scf.foreach_thread` results alias with the underlying `scf.foreach_thread.parallel_insert_slice` destination operands
and they bufferize to equivalent buffers in the absence of other conflicts.
`scf.foreach_thread.parallel_insert_slice` conflict detection is similar to `tensor.insert_slice` conflict detection.

Reviewed By: springerm

Differential Revision: https://reviews.llvm.org/D126769

This is required to find headers on the Debian port for RISC-V.

Differential Revision: https://reviews.llvm.org/D126672

The backend now can generate working unwind information for this
target.

Improve the existing windows-exceptions.cpp testcase to check for
the state of unwind tables on all MSVC architectures.

Differential Revision: https://reviews.llvm.org/D126862

Previously, the "add sp, #12" ended up inserted after "bx lr".

Differential Revision: https://reviews.llvm.org/D126872

Instead of adding all devtoolset and gcc-toolset prefixes to the list of
prefixes, just scan the /opt/rh/ directory for the one with the highest
version number and only add that one.

Differential Revision: https://reviews.llvm.org/D125862

Reviewed By: rriddle

Differential Revision: https://reviews.llvm.org/D126594

This patch updates the document with some advanced use cases and examples on how to set up and use LLVM-style RTTI. It includes a few motivating examples to get readers comfortable with the concepts.

Reviewed By: lattner

Differential Revision: https://reviews.llvm.org/D126943

This execution path leads to return 'false' where the Worklist
will be deallocated anyways. No need to clear it separately.

If all available vals to basic block are the same - do not build new phi node and
just use this value.

Reviewed By: sameerds
Subscribers: llvm-commits
Differential Revision: https://reviews.llvm.org/D126525

Detect if the architecture supports FMA instructions and if
the targets depend on fma.

Reviewed By: gchatelet

Differential Revision: https://reviews.llvm.org/D123615

This patch is trying to fix issue 48588(https://github.com/llvm/llvm-project/issues/48588)

I found the results of Instruction Selection between SelectionDAG and FastISEL for the `%mul = mul i32 %A, 4294967295`:
(seldag-isel) mul --> sub --> SUB32dp
(fast-isel)   mul --> sub --> NEG32d

My patch to fix this issue is by overriding a virtual function M68kDAGToDAGISel::IsProfitableToFold(). Return `false` when it was trying to match with SUB, then it will match with NEG.

Reviewed By: myhsu

Differential Revision: https://reviews.llvm.org/D116886

ldmatrix transpose can only be used with types that are 16bits wide.

Differential Revision: https://reviews.llvm.org/D126846

Add an option to predicate the epilogue within the kernel instead of
peeling the epilogue. This is a useful option to prevent generating
large amount of code for deep pipeline. This currently require a user
lamdba to implement operation predication.

Differential Revision: https://reviews.llvm.org/D126753

The immediate range check for CSImm12MulBy8 included some values
covered by CSImm12MulBy4. I assume CSImm12MulBy4 had priority due
to pattern order in the td file, but this makes the priority
explicit in the predicate.

echo.ll is unchanged to test typed pointers.

These effectively all share the same implementation, i.e. forward
to the non-templated overload and then construct the container op.

Follow LLVM style guide suggestion to avoid function definitions in anonymous
namespaces: https://llvm.org/docs/CodingStandards.html#anonymous-namespaces

Reviewed By: rafauler

Differential Revision: https://reviews.llvm.org/D124896

This patch adds the codegen support for `atomic compare capture` in clang.

Reviewed By: ABataev

Differential Revision: https://reviews.llvm.org/D120290

Clang's doxygen documentation specifies LLVM revision. Do the same for BOLT.

Reviewed By: rafauler

Differential Revision: https://reviews.llvm.org/D126912