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| author | Quentin Colombet <qcolombet@apple.com> | 2019-11-15 13:24:27 -0800 |
|---|---|---|
| committer | Quentin Colombet <qcolombet@apple.com> | 2019-11-15 13:54:33 -0800 |
| commit | 304abde0779ba036bde985b33eabbc6113cf0189 (patch) | |
| tree | 59a16f5922cc049cfc6a225085444cc01ed45700 /lldb/packages/Python/lldbsuite/test/python_api/formatters | |
| parent | 47bd7c57e556e3a4db51566d59c2d796ce898c8f (diff) | |
| download | bcm5719-llvm-304abde0779ba036bde985b33eabbc6113cf0189.tar.gz bcm5719-llvm-304abde0779ba036bde985b33eabbc6113cf0189.zip | |
[GISel][CombinerHelper] Add support for scalar type for the result of shuffle vector
LLVM IR of 1-element vectors get lower into scalar in GISel. As a
result, shuffle vector may also produce a scalar.
This patch teaches the shuffle combiner how to deal with scalars when
they are in the destination type of a shuffle vector.
For now, we just support the easy case where this can be lowered to
a plain copy. For other cases, we leave the shuffle vector as is.
This type of IR are seen in O0 pipelines. E.g., as produced with
SingleSource/UnitTests/Vector/AArch64/aarch64_neon_intrinsics.c.
rdar://problem/57198904
Diffstat (limited to 'lldb/packages/Python/lldbsuite/test/python_api/formatters')
0 files changed, 0 insertions, 0 deletions
