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| author | Simon Pilgrim <llvm-dev@redking.me.uk> | 2021-05-24 13:59:15 +0100 |
|---|---|---|
| committer | Simon Pilgrim <llvm-dev@redking.me.uk> | 2021-05-24 14:18:21 +0100 |
| commit | 1ad4f887bd7692a9e63fb42586f0ece366f2fe01 (patch) | |
| tree | 0a714c2c2dfe4174b93254a39e89bbcdd17522eb /llvm/lib/Bitcode/Reader/BitcodeReader.cpp | |
| parent | d251d6f8128bbc38378a69e7fec405f0935a89de (diff) | |
[CostModel][X86] Improve accuracy of vector non-uniform shift costs on XOP/AVX2 targets
By llvm-mca analysis, Haswell/Broadwell has a non-uniform vector shift recip-throughput cost of the AVX2 targets at 2 for both 128 and 256-bit vectors - XOP capable targets have better 128-bit vector shifts so improve the fallback in those cases.
Diffstat (limited to 'llvm/lib/Bitcode/Reader/BitcodeReader.cpp')
0 files changed, 0 insertions, 0 deletions