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| author | Simon Pilgrim <llvm-dev@redking.me.uk> | 2021-05-20 18:43:30 +0100 |
|---|---|---|
| committer | Simon Pilgrim <llvm-dev@redking.me.uk> | 2021-05-20 18:56:58 +0100 |
| commit | a26288e8030a44a5696fe170de3fea79800d7bcd (patch) | |
| tree | fefe432c457739bd6d2bd99ee2249f409435144f /clang/lib/CodeGen/CodeGenModule.cpp | |
| parent | 68d5235cb58f988c71b403334cd9482d663841ab (diff) | |
[X86][Atom] Fix vector fadd/fcmp/fmul resource/throughputs
Match whats documented in the Intel AOM - these are all fadd/fcmp use Port1 and fmul uses Port1, but in many cases BOTH ports are required - this was being incorrectly modelled as EITHER port.
Discovered while investigating the correct fptoui costs to fix the regressions in D101555.
Now that we can use in-order models in llvm-mca, the atom model is a good "worst case scenario" analysis for x86.
Diffstat (limited to 'clang/lib/CodeGen/CodeGenModule.cpp')
0 files changed, 0 insertions, 0 deletions