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| author | Zain Jaffal <z_jaffal@apple.com> | 2022-12-08 08:21:53 +0200 |
|---|---|---|
| committer | Zain Jaffal <z_jaffal@apple.com> | 2022-12-08 09:06:18 +0200 |
| commit | f9e0390751cb5eefbbbc191f851c52422acacab1 (patch) | |
| tree | 4e13fa9122f208f76380ae8a5a1ab87f35f45c78 /llvm/lib/Support/VirtualFileSystem.cpp | |
| parent | 1eab2d699e9581305f32473291e6afa47017d582 (diff) | |
| download | llvm-f9e0390751cb5eefbbbc191f851c52422acacab1.zip llvm-f9e0390751cb5eefbbbc191f851c52422acacab1.tar.gz llvm-f9e0390751cb5eefbbbc191f851c52422acacab1.tar.bz2 | |
[AArch64] Select SMULL for zero extended vectors when top bit is zero
we can safely replace a `zext` instruction with `sext` if the top bit is zero. This is useful because we can select `smull` when both operands are sign extended.
Reviewed By: fhahn, dmgreen
Differential Revision: https://reviews.llvm.org/D134711
Diffstat (limited to 'llvm/lib/Support/VirtualFileSystem.cpp')
0 files changed, 0 insertions, 0 deletions