On platforms where the integrated as isn't called by default this
test fails since the output is not what it expects.  Adding this
option generates the expected output on those platforms as well.

[RISCV] Replace getSimpleValueType() with getValueType() in DAG combines to prevent asserts with weird types.

In this case getScalarSizeInBits() is not well-defined. Use the
existing TyBits variable that handles vectors of pointers correctly.

This reverts commit 8166ed1a,
as it caused some compilations to hang/loop indefinitely, see
https://reviews.llvm.org/D91936 for details.

[RISCV][LegalizeTypes] Teach type legalizer that it can promote UMIN/UMAX using SExtPromotedInteger if that's better for the target.

If Sext is cheaper than Zext for a target, we can use that to promote the operands of UMIN/UMAX. Using sext just makes numbers with the sign bit set even larger when treated as an unsigned number and it has no effect on number without the sign bit set. So the relative order doesn't change. This is similar to what we already do for promoting SETCC.

This is helpful on RISCV where i32 arguments are sign extended on RV64 and many instructions are able to produce results with 33 sign bits.

Differential Revision: https://reviews.llvm.org/D92128

[RISCV] Replace sexti32/zexti32 in isel patterns where only one part of their PatFrags can match. NFCI

We had an zexti32 after a sign_extend_inreg. The AND X, 0xffffffff
part of the zexti32 should never occur since SimplifyDemandedBits
from the sign_extend_inreg would have removed it.

We also had sexti32 as the root node of a pattern, but SelectionDAGISel
matches assertsext early before the tablegen based patterns are
evaluated.

Allow non-simple types, like <17 x i32> to be treated as HVX vector
types.

This patch updates algorithms in <numeric> to use std::move
based on p0616r0. Moving values instead of copying them
creates huge speed improvements (see the paper for details).

Differential Revision: https://reviews.llvm.org/D61170

SUMMARY:

  Change geNumberOfVRSaved function name to getNumberOfVRSaved of class TBVectorExt

Reviewers: hubert.reinterpretcast, Jason Liu
Differential Revision: https://reviews.llvm.org/D92225

Also sync help texts for the option between elf and coff ports.

Decisions:
- Do this even if /lldignoreenv is passed. /reproduce: does not affect
  the main output, and this makes the env var more convenient to use.
  (On the other hand, it's now possible to set this env var and forget
  about it, and all future builds in the same shell will be much slower.
  That's true for ld.lld, but posix shells have an easy way to set an
  env var for a single command; in cmd.exe this is not possible without
  contortions. Then again, lld-link runs in posix shells too.)

Original patch rebased across D68378 and D68381.

Differential Revision: https://reviews.llvm.org/D67707

This patch implements the definition of __ARM_FEATURE_ATOMICS and fixes the
missing definition of __ARM_FEATURE_CRC32 for Armv8.1-A.

Differential Revision: https://reviews.llvm.org/D91438

This patch updates widenGEP to manage the resulting vector values using
the VPValue of VPWidenGEP recipe.

We create threads using std::thread in various places in the test suite.
However, the usual std::thread constructor may not work on all platforms,
e.g. on platforms where passing a stack size is required to create a thread.

This commit introduces a simple indirection that makes it easier to tweak
how threads are created inside the test suite on various platforms. Note
that tests that are purposefully calling std::thread's constructor directly
(e.g. because that is what they're testing) were not modified.

Reviewed By: peterwaller-arm, sdesmalen

Differential Revision: https://reviews.llvm.org/D92020

Shows the failure to combine to uaddsat

Followup to D92112 now that I've learnt about HVX type splitting.

This is some necessary cleanup work for min/max ops to eventually help us move the add/sub sat patterns into DAGCombine - D91876.

Differential Revision: https://reviews.llvm.org/D92169

[libomptarget][cuda] Detect missing symbols in plugin at build time

Passes -z,defs to the linker. Error on unresolved symbol references.

Otherwise, those unresolved symbols present as target code running on the host
as the plugin fails to load. This is significantly harder to debug than a link
time error. Flag matches that passed by amdgcn and ve plugins.

Reviewed By: tianshilei1992

Differential Revision: https://reviews.llvm.org/D92143

By encoding ABI-affecting properties in the name of the ABI list, it
makes it clear when an ABI list test should or should not be available,
and what results we should expect.

Note that we clearly don't encode all ABI-affecting parameters in the
name right now -- I just ported over what we supported in the code that
was there previously. As we encounter configurations that we wish to
support but produce different ABI lists, we can add those to the ABI
identifier and start supporting them.

This commit also starts checking the ABI list in the CI jobs that run
a supported configuration. Eventually, all configurations should have
a generated ABI list and the test should even run implicitly as part of
the Lit test suite.

Differential Revision: https://reviews.llvm.org/D92194

Differential Revision: https://reviews.llvm.org/D43159

Differential revision: https://reviews.llvm.org/D92026

This patch enables vector type arguments on AIX.  All non-aggregate Altivec vector types are 16bytes in size and are 16byte aligned.

Reviewed By: Xiangling_L

Differential Revision: https://reviews.llvm.org/D92117

A splat attribute have a single element during printing so we should
treat it as such when we decide if we elide it or not based on the flag
intended to elide large attributes.

Reviewed By: rriddle, mehdi_amini

Differential Revision: https://reviews.llvm.org/D92165

This broke some clang matcher tests in 32-bit MSVC builds; see PR46781.

> Summary: Use move semantics instead of copying for AST Matchers with parameters
>
> Reviewers: aaron.ballman, gribozavr2
>
> Reviewed By: gribozavr2
>
> Subscribers: cfe-commits
>
> Tags: #clang
>
> Differential Revision: https://reviews.llvm.org/D75096

This reverts commit 3e9a7b2b.

Calling any of the OpenCLOptions::is*() functions (except isKnown())
with an unknown extension string results in a seg fault. This patch
checks that the extension exists in the map before attempting to access
it.

Reviewed By: Anastasia

Differential Revision: https://reviews.llvm.org/D90928

Many pages have had their titles renamed over time,
causing broken links to spread throughout the documentation.

Reviewed By: ftynse

Differential Revision: https://reviews.llvm.org/D92093

This patch starts emitting the `EShNum` key, when the `e_shnum = 0`
and the section header table exists.

`e_shnum` might be 0, when the the number of entries in the section header
table is larger than or equal to SHN_LORESERVE (0xff00).
In this case the real number of entries
in the section header table is held in the `sh_size`
member of the initial entry in section header table.

Currently, obj2yaml crashes when an object has `e_shoff != 0` and the `sh_size`
member of the initial entry in section header table is `0`.
This patch fixes it.

Differential revision: https://reviews.llvm.org/D92098

The following line asserts when `sh_addralign > MAX_UINT32 && (uint32_t)sh_addralign == 0`:

```
    ExpectedOffset = alignTo(ExpectedOffset,
                             SecHdr.sh_addralign ? SecHdr.sh_addralign : 1);
```

it happens because `sh_addralign` is truncated to 32-bit value, but `alignTo`
doesn't accept `Align == 0`. We should change `1` to `1uLL`.

Differential revision: https://reviews.llvm.org/D92163

This adds LLVM_DEBUG messages to dump the (intermediate) tree cost
calculations, which is useful to trace and see how the final cost is
calculated.

[DAG] Legalize umin(x,y) -> sub(x,usubsat(x,y)) and umax(x,y) -> add(x,usubsat(y,x)) iff usubsat is legal

If usubsat() is legal, this is likely to result in smaller codegen expansion than the default cmp+select codegen expansion.

Allows us to move the x86-specific lowering to the generic expansion code.

Differential Revision: https://reviews.llvm.org/D92183

Rename prefix from X32 to X86 as we typically use X32 for gnux32 triples

Reviewed By: sivachandra

Differential Revision: https://reviews.llvm.org/D90381

As a bonus this makes it (IMO) obvious that the iterator is not
invalidated, so remove the comment explaining that.

The Direction parameter to AnalysisResolver::getAnalysisIfAvailable has
never been documented or used for anything.

The test case isn't using the AST matchers for all checks as there doesn't seem to be support for
matching NonTypeTemplateParmDecl default arguments. Otherwise this is simply importing the
default arguments.

Reviewed By: martong

Differential Revision: https://reviews.llvm.org/D92106