[test] %clang_cc1 -emit-llvm: remove redundant -S

And replace -emit-llvm -o - with -emit-llvm-only

[IRBuilder] Use canonical i64 type for insertelement index used by vector splats.

Instcombine prefers this canonical form (see getPreferredVectorIndex),
as does IRBuilder when passing the index as a

[IRBuilder] Use canonical i64 type for insertelement index used by vector splats.

Instcombine prefers this canonical form (see getPreferredVectorIndex),
as does IRBuilder when passing the index as an integer so we may as
well use the prefered form from creation.

NOTE: All test changes are mechanical with nothing else expected
beyond a change of index type from i32 to i64.

Differential Revision: https://reviews.llvm.org/D140983

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[clang][test] Use opt -passes=<name> instead of opt -name

Updated the RUN line in several test cases to use the new PM syntax
opt -passes=<pipeline>
instead of the deprecated syntax
opt -pass1 -

[clang][test] Use opt -passes=<name> instead of opt -name

Updated the RUN line in several test cases to use the new PM syntax
opt -passes=<pipeline>
instead of the deprecated syntax
opt -pass1 -pass2

This was not a complete cleanup in clang/test. But just a swipe using
some simple search-and-replace. Mainly for RUN lines involving
-mem2reg, -instnamer and -early-cse.

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[Clang][Arm] Convert -fallow-half-arguments-and-returns to a target option. NFC

This cc1 option -fallow-half-arguments-and-returns allows __fp16 to be
passed by argument and returned, without giving

[Clang][Arm] Convert -fallow-half-arguments-and-returns to a target option. NFC

This cc1 option -fallow-half-arguments-and-returns allows __fp16 to be
passed by argument and returned, without giving an error. It is
currently always enabled for Arm and AArch64, by forcing the option in
the driver. This means any cc1 tests (especially those needing
arm_neon.h) need to specify the option too, to prevent the error from
being emitted.

This changes it to a target option instead, set to true for Arm and
AArch64. This allows the option to be removed. Previously it was implied
by -fnative_half_arguments_and_returns, which is set for certain
languages like open_cl, renderscript and hlsl, so that option now too
controls the errors. There were are few other non-arm uses of
-fallow-half-arguments-and-returns but I believe they were unnecessary.
The strictfp_builtins.c tests were converted from __fp16 to _Float16 to
avoid the issues.

Differential Revision: https://reviews.llvm.org/D133885

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[ARM/AArch64] Move REQUIRES after update_cc_test_checks line. NFC

c17d9b4b125e5561925aa added REQUIRES lines to a lot of Arm and AArch64
test, but added them to the very beginning, before the existi

[ARM/AArch64] Move REQUIRES after update_cc_test_checks line. NFC

c17d9b4b125e5561925aa added REQUIRES lines to a lot of Arm and AArch64
test, but added them to the very beginning, before the existing
update_cc_test_checks lines. This just moves them later so as to not
mess up the existing ordering when the checks are regenerated.

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headers: optionalise some generated resource headers

This splits out the generated headers and conditonalises them upon the
target being enabled.

The motivation here is that the RISCV header alone

headers: optionalise some generated resource headers

This splits out the generated headers and conditonalises them upon the
target being enabled.

The motivation here is that the RISCV header alone added 10MB to the
resource directory, which was previously at 10MB, increasing the build
size and time. This header is contributing ~50% of the size of the
resource headers (~10MB).

The ARM generated headers are contributing about ~10% or 1MB.

This could be extended further adding only the static resource headers
for the targets that the LLVM build supports.

The changes to the tests for ARM mirror what the RISCV target already
did and rnk identified as a possible issue.

Testing:
cmake -G Ninja -D LLVM_TARGETS_TO_BUILD=X86 -D LLVM_ENABLE_PROJECTS="clang;lld" ../clang
ninja check-clang

Differential Revision: https://reviews.llvm.org/D112890
Reviewed By: craig.topper

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[IR] Let IRBuilder's CreateVectorSplat/CreateShuffleVector use poison as placeholder

This patch updates IRBuilder to create insertelement/shufflevector using poison as a placeholder.

Reviewed By: n

[IR] Let IRBuilder's CreateVectorSplat/CreateShuffleVector use poison as placeholder

This patch updates IRBuilder to create insertelement/shufflevector using poison as a placeholder.

Reviewed By: nikic

Differential Revision: https://reviews.llvm.org/D93793

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[ARM] Replace arm vendor with none. NFC

[ARM,MVE] Add vector-scalar intrinsics

Summary:
This patch adds vector-scalar variants to the following families of
MVE intrinsics:
* vaddq
* vsubq
* vmulq
* vqaddq
* vqsubq
* vhaddq
* vhsubq
* vqdm

[ARM,MVE] Add vector-scalar intrinsics

Summary:
This patch adds vector-scalar variants to the following families of
MVE intrinsics:
* vaddq
* vsubq
* vmulq
* vqaddq
* vqsubq
* vhaddq
* vhsubq
* vqdmulhq
* vqrdmulhq

The vector-scalar variants perform a splat operation on the scalar
operand and then perform the same operations as their vector-vector
counterparts. Code generation is done accordingly (using LLVM IR 'insert'
and 'shuffle' operations which are later converted into an ARMvdup
SDNode).

Reviewers: simon_tatham, dmgreen, MarkMurrayARM, ostannard

Reviewed By: dmgreen

Subscribers: kristof.beyls, hiraditya, cfe-commits, llvm-commits

Tags: #clang, #llvm

Differential Revision: https://reviews.llvm.org/D74620

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[ARM][MVE][Intrinsics] All vqdmulhq/vqrdmulhq tests should be for signed numbers.

Fix broken tests. I can't yet explain how they worked locally pre-commit.

[ARM][MVE][Intrinsics] Add VQADDQ, VHADDQ, VRHADDQ, VQSUBQ, VHSUBQ, VQDMULHQ, VQRDMULHQ intrinsics.

Summary: Add VQADDQ, VHADDQ, VRHADDQ, VQSUBQ, VHSUBQ, VQDMULHQ, VQRDMULHQ intrinsics and unit test

[ARM][MVE][Intrinsics] Add VQADDQ, VHADDQ, VRHADDQ, VQSUBQ, VHSUBQ, VQDMULHQ, VQRDMULHQ intrinsics.

Summary: Add VQADDQ, VHADDQ, VRHADDQ, VQSUBQ, VHSUBQ, VQDMULHQ, VQRDMULHQ intrinsics and unit tests.

Reviewers: simon_tatham, ostannard, dmgreen, miyuki

Subscribers: kristof.beyls, hiraditya, cfe-commits, llvm-commits

Tags: #clang, #llvm

Differential Revision: https://reviews.llvm.org/D71198

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