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| author | Simon Pilgrim <llvm-dev@redking.me.uk> | 2025-09-29 08:29:04 +0100 |
|---|---|---|
| committer | GitHub <noreply@github.com> | 2025-09-29 07:29:04 +0000 |
| commit | f84b784dac61d419318ed6598412d197f1e05ee9 (patch) | |
| tree | a97149c684f9247297e7c7abaf537dfa4d95edd6 /llvm/tools/llvm-diff/lib | |
| parent | 3a3a4fb922094c69c4c7bcf1dc1b8a079415f4b2 (diff) | |
| download | llvm-f84b784dac61d419318ed6598412d197f1e05ee9.zip llvm-f84b784dac61d419318ed6598412d197f1e05ee9.tar.gz llvm-f84b784dac61d419318ed6598412d197f1e05ee9.tar.bz2 | |
[X86] LowerShiftByScalarImmediate - move shl(x,1) -> add(freeze(x),freeze(x)) to X86FixupInstTunings (#161007)
Avoid the shl(x,1) -> add(freeze(x),freeze(x)) if the shift-imm if
legal, and leave it to X86FixupInstTunings.
Helps avoid missed optimisations due to oneuse limits, avoids
unnecessary freezes and allows AVX512 to fold to mi memory folding
variants.
Fixes #161006
Diffstat (limited to 'llvm/tools/llvm-diff/lib')
0 files changed, 0 insertions, 0 deletions