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| author | Craig Topper <craig.topper@sifive.com> | 2023-01-27 23:41:06 -0800 |
|---|---|---|
| committer | Craig Topper <craig.topper@sifive.com> | 2023-01-28 00:05:19 -0800 |
| commit | cbbcb10e084e9ef93f37fdf8526b0ab20200eb46 (patch) | |
| tree | ef4af2b1964076682091487618ef97943b76fc35 /clang/lib/Basic/SourceManager.cpp | |
| parent | 6cfebf39103e6f46dfb3ed50930b81cb674384e5 (diff) | |
| download | llvm-cbbcb10e084e9ef93f37fdf8526b0ab20200eb46.zip llvm-cbbcb10e084e9ef93f37fdf8526b0ab20200eb46.tar.gz llvm-cbbcb10e084e9ef93f37fdf8526b0ab20200eb46.tar.bz2 | |
[RISCV] Refine the (mul (zext.w X), C) -> mulhu isel heuristic.
We try to shift both X and C left by 32 to replace the zext.w
with a SLLI and use mulhu. If C is already a simm32, this likely
makes a constant that is more expensive to materialize.
Diffstat (limited to 'clang/lib/Basic/SourceManager.cpp')
0 files changed, 0 insertions, 0 deletions