Differential Revision: https://reviews.llvm.org/D130563

Add a statistic variable for rematerialization.

Differential Revision: https://reviews.llvm.org/D134907

When returning from a function with both SCS and PAC-RET enabled, we need to
authenticate the return address from the stack and then load from the SCS,
but this was happening in the reverse order when RETA[AB] were being used.
Fix it by disabling the use of RETA[AB] when SCS is enabled.

Fixes pr58072.

Differential Revision: https://reviews.llvm.org/D134931

bfloat16 is currently only supported by default on x86.

Differential Revision: https://reviews.llvm.org/D134937

Differential Revision: https://reviews.llvm.org/D127556

This checks are irrelevant with monorepo.

This patch adds the div bang operator which performs division.

Differential Revision: https://reviews.llvm.org/D134001

Reviewed By: #libunwind, MaskRay, mgorny

Differential Revision: https://reviews.llvm.org/D134969

Now that all jobs have moved over to the new style of Lit configuration,
we can remove all traces of the legacy testing configuration system.
This includes:
- Cache settings that are not honored or useful anymore
- Several CMake options that were only useful in the context of the
  legacy Lit configuration system
- A bunch of Python support code that is not used anymore
- The legacy lit.cfg.in files themselves

Differential Revision: https://reviews.llvm.org/D134650

Differential Revision: https://reviews.llvm.org/D134914

The CHECK lines in the test are too specific and cause mis-matches on
some platforms. Reduce them to make them less fragile.

AffineMapAttr on fir.box type is not used. This patch
remove it. It can be added back later when needed.

Reviewed By: jeanPerier

Differential Revision: https://reviews.llvm.org/D134955

1. Save typed pointer type for GlobalVariable/Function instead of the ObjectType.
   This will allow use GlobalVariable/Function as value.
2. Save target type for global ctors for Constant.
3. In DXILBitcodeWriter::getTypeID, check PointerMap first for Constant case.

Reviewed By: beanz

Differential Revision: https://reviews.llvm.org/D133283

Fixes a null dereference in some diagnostic issuing code.

Closes https://github.com/llvm/llvm-project/issues/57370
Closes https://github.com/llvm/llvm-project/issues/58028

Reviewed By: shafik

Differential Revision: https://reviews.llvm.org/D134885

This way the predicates can be reused elsewhere, and can more easily be kept in sync with changes to the enum.

Reviewed By: aartbik

Differential Revision: https://reviews.llvm.org/D134926

So we don't have to specify -enable-new-pm=0.

So we don't have to specify -enable-new-pm=0.

This fixes a crash when trying to access an index for a value where we
don't have a known index.

Fixes #58009.

The new pattern gets rid of the collapse_shape operation while
materializing its effects on the sizes, and the strides of the base
object.

In other words, this simplification replaces:

```
baseBuffer, offset, sizes, strides =
    extract_strided_metadata(collapse_shape(memref))
```

With

```
baseBuffer, offset, baseSizes, baseStrides =
    extract_strided_metadata(memref)
for reassDim in {0 .. collapseRank - 1}
  sizes#reassDim = product(baseSizes#i for i in group[reassDim])
  strides#reassDim = baseStrides[group[reassDim].back()]
```

Note: baseBuffer and offset are unaffected by the collapse_shape
operation.

Differential Revision: https://reviews.llvm.org/D134826

D133866 added the llvm::isNeutralConstant helper to track neutral/passthrough constants

This patch updates foldSelectWithIdentityConstant to use the helper instead of maintaining its own opcode handling

Differential Revision: https://reviews.llvm.org/D134966

Reviewed By: Peiming

Differential Revision: https://reviews.llvm.org/D134924

Summary:
Also modify helper methods to take StringRefs instread of Attributes. It makes
the code cleaner and will help with future migration from StringRef to
utils::IteratorType ([RFC](https://discourse.llvm.org/t/rfc-enumattr-for-iterator-types-in-linalg/64535)).

Differential Revision: https://reviews.llvm.org/D134888

Move the logic for selecting `NewOpc` out of `LowerMUL`

Reviewed By: fhahn

Differential Revision: https://reviews.llvm.org/D134875

Simplify and make the pair-wise relocation more precise.  If either of
the symbol references are textual, the relocation must be delayed.  If
the difference is across sections, delay it as well which partially
matches the behaviour of gas.  We unfortunately do not handle the case
where the difference references a symbol that is not yet defined.  In
such a case, we simply fail to resolve the difference, which should
hopefully not be too onerous (particularly since no other target
supports cross-section references and it is not clear if this was
intentional on the part of RISCV).

Differential Revision: https://reviews.llvm.org/D132262
Reviewed By: @MaskRay

This reverts commit 14642dc7

Broke the tests on macOS -- https://reviews.llvm.org/D132734#3827245

[RISCV] Branchless lowering for select (and (x , 0x1) == 0), y, (z ^ y) ) and select (and (x , 0x1) == 0), y, (z | y) )

This code is directly ported from the X86 backend which applies the same rewrite (along with several others). Planning on looking more closely at the other branchless variants from x86 to see if any are worth porting in future changes.

Motivation here is the coremark crc8 routine from https://github.com/eembc/coremark/blob/main/core_util.c#L165. This patch significantly reduces the number of unpredictable branches in the workload.

Differential Revision: https://reviews.llvm.org/D134881

Many tests still depend on specific names of SSA values (!!).
This commit is a best effort cleanup that will set the stage for adding some pretty SSA result names.

Differential Revision: https://reviews.llvm.org/D134707

I went over the output of the following mess of a command:

`(ulimit -m 2000000; ulimit -v 2000000; git ls-files -z | parallel --xargs -0 cat | aspell list --mode=none --ignore-case | grep -E '^[A-Za-z][a-z]*$' | sort | uniq -c | sort -n | grep -vE '.{25}' | aspell pipe -W3 | grep : | cut -d' ' -f2 | less)`

and proceeded to spend a few days looking at it to find probable typos
and fixed a few hundred of them in all of the llvm project (note, the
ones I found are not anywhere near all of them, but it seems like a
good start).

Reviewed By: Amir, maksfb

Differential Revision: https://reviews.llvm.org/D130824

This reverts commit 5dfc8ebe.

These can be manipulated by foldSelectWithIdentityConstant and lose the predicate/predicate-zero instruction test coverage - use an insertvalue chain into an aggregate instead to retain all the results.

Noticed while trying to convert foldSelectWithIdentityConstant to use llvm::isNeutralConstant