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| author | Nikita Popov <npopov@redhat.com> | 2025-06-04 10:41:30 +0200 |
|---|---|---|
| committer | GitHub <noreply@github.com> | 2025-06-04 10:41:30 +0200 |
| commit | 54da543a14da6dd0e594875241494949cb659b08 (patch) | |
| tree | 2610a4200b7200e16fa56a58f2c4d8115f9c627f /clang/lib/CodeGen/CodeGenModule.cpp | |
| parent | 01a6d0fffb8978040e0a6d5471ec432eb51ddee7 (diff) | |
| download | llvm-54da543a14da6dd0e594875241494949cb659b08.zip llvm-54da543a14da6dd0e594875241494949cb659b08.tar.gz llvm-54da543a14da6dd0e594875241494949cb659b08.tar.bz2 | |
[SelectionDAG] Avoid one comparison when legalizing fmaximum (#142732)
When ordering signed zero, only check the sign of one of the values. We
already know at this point that both values must be +/-0.0, so it is
sufficient to check one of them to correctly order them.
For example, for fmaximum, if we know LHS is `+0.0` then we can always
select LHS, value of RHS does not matter. If LHS is `-0.0` we can always
select RHS, value of RHS doesn't matter.
Diffstat (limited to 'clang/lib/CodeGen/CodeGenModule.cpp')
0 files changed, 0 insertions, 0 deletions