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| author | Ben Shi <powerman1st@163.com> | 2021-06-19 11:01:43 +0800 |
|---|---|---|
| committer | Ben Shi <powerman1st@163.com> | 2021-06-19 14:33:27 +0800 |
| commit | d934b72809cb3cbc9f646a2b505e781e0b8b3d7b (patch) | |
| tree | e27bb56e2fe4b0e8218b41c46895c54019ced3fc /llvm/lib/Transforms/Utils/LoopUnrollRuntime.cpp | |
| parent | 31190738c024298745d877a47ef95a5263ea5c9e (diff) | |
| download | llvm-d934b72809cb3cbc9f646a2b505e781e0b8b3d7b.zip llvm-d934b72809cb3cbc9f646a2b505e781e0b8b3d7b.tar.gz llvm-d934b72809cb3cbc9f646a2b505e781e0b8b3d7b.tar.bz2 | |
[RISCV] Optimize add-mul in the zba extension with SH*ADD
This patch does the following optimization.
Rx + Ry * 18 => (SH1ADD (SH3ADD Rx, Rx), Ry)
Rx + Ry * 20 => (SH2ADD (SH2ADD Rx, Rx), Ry)
Rx + Ry * 24 => (SH3ADD (SH1ADD Rx, Rx), Ry)
Rx + Ry * 36 => (SH2ADD (SH3ADD Rx, Rx), Ry)
Rx + Ry * 40 => (SH3ADD (SH2ADD Rx, Rx), Ry)
Rx + Ry * 72 => (SH3ADD (SH3ADD Rx, Rx), Ry)
Reviewed By: craig.topper
Differential Revision: https://reviews.llvm.org/D104588
Diffstat (limited to 'llvm/lib/Transforms/Utils/LoopUnrollRuntime.cpp')
0 files changed, 0 insertions, 0 deletions