llvm-project.git/llvm/test/CodeGen/WebAssembly/simd.ll, branch users/nico/python-2

DAG: Fix vector_shuffle -> splat fold defining undef lanes (#123596)

2025-01-21T16:55:50+00:00

For shuffle vector splats with undef lanes in the mask,
this was introducing real values. Filter out build_vector
results based on the undef elements in the mask.

This avoids AMDGPU test regressions in a future change.

test/CodeGen/X86/urem-seteq-illegal-types.ll looks worse
but I didn't investigate.

[DAG] Preserve NUW when reassociating (#87621)

2024-04-04T14:47:25+00:00

Similarly to the generic case below, preserve the NUW flag when
reassociating adds with constants.

[NFC][WebAssembly] Updated tests

2023-01-26T10:26:24+00:00

Run update_llc_test_checks on a number of codegen tests.

[WebAssembly] Improve codegen for shuffles with undefined lane indices

2022-09-13T23:03:18+00:00

For undefined lane indices, fill the mask with {0..N} instead of zeros to allow
further reduction to word/dword shuffle on the VM.

Reviewed By: tlively, penzn

Differential Revision: https://reviews.llvm.org/D133473

[WebAssembly] Remove datalayout strings from llc tests

2021-07-14T18:17:08+00:00

The data layout strings do not have any effect on llc tests and will become
misleadingly out of date as we continue to update the canonical data layout, so
remove them from the tests.

Differential Revision: https://reviews.llvm.org/D105842

[WebAssembly] Remove unimplemented-simd target feature

2021-03-18T17:23:12+00:00

Now that the WebAssembly SIMD specification is finalized and engines are
generally up-to-date, there is no need for a separate target feature for gating
SIMD instructions that engines have not implemented. With this change,
v128.const is now enabled by default with the simd128 target feature.

Differential Revision: https://reviews.llvm.org/D98457

[WebAssembly][SIMD] Rename shuffle, swizzle, and load_splats

2020-12-22T22:29:06+00:00

These instructions previously used prefixes like v8x16 to signify that they were
agnostic between float and int interpretations. We renamed these instructions to
remove this form of prefix in https://github.com/WebAssembly/simd/issues/297 and
https://github.com/WebAssembly/simd/issues/316 and this commit brings the names
in LLVM up to date.

Differential Revision: https://reviews.llvm.org/D93722

[WebAssembly] Prefer v128.const for constant splats

2020-07-11T01:27:52+00:00

In BUILD_VECTOR lowering, we used to generally prefer using splats
over v128.const instructions because v128.const has a very large
encoding. However, in d5b7a4e2e8 we switched to preferring consts
because they are expected to be more efficient in engines. This patch
updates the ISel patterns to match this current preference.

Differential Revision: https://reviews.llvm.org/D83581

[WebAssembly] Simplify extract_vector lowering

2020-02-25T21:54:48+00:00

Summary:
Removes patterns that were not doing useful work, changes the
default extract instructions to be the unsigned versions now that
they are enabled by default, fixes PR44988, and adds tests for
sext_inreg lowering.

Reviewers: aheejin

Reviewed By: aheejin

Subscribers: dschuff, sbc100, jgravelle-google, hiraditya, sunfish, llvm-commits

Tags: #llvm

Differential Revision: https://reviews.llvm.org/D75005

[WebAssembly] Enable recently implemented SIMD operations

2020-02-05T02:36:32+00:00

Summary:
Moves a batch of instructions from unimplemented-simd128 to simd128
because they have recently become available in V8.

Reviewers: aheejin

Subscribers: dschuff, sbc100, jgravelle-google, hiraditya, sunfish, cfe-commits, llvm-commits

Tags: #clang, #llvm

Differential Revision: https://reviews.llvm.org/D73926