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| author | Fangrui Song <i@maskray.me> | 2023-06-18 16:00:18 -0700 |
|---|---|---|
| committer | Fangrui Song <i@maskray.me> | 2023-06-18 16:00:18 -0700 |
| commit | ada137a4c2a292c34927f0f22bd4c6fba4d3df87 (patch) | |
| tree | b671441a954c0d5fe41e8ff408adb2cd3eadbc86 /llvm/lib/Transforms/Utils/LoopUnrollRuntime.cpp | |
| parent | c26c5e47ab9ca60835f191c90fa751e9a7dd0f3d (diff) | |
| download | llvm-ada137a4c2a292c34927f0f22bd4c6fba4d3df87.zip llvm-ada137a4c2a292c34927f0f22bd4c6fba4d3df87.tar.gz llvm-ada137a4c2a292c34927f0f22bd4c6fba4d3df87.tar.bz2 | |
[MC] Remove unneeded MCDataFragment check from AttemptToFoldSymbolOffsetDifference
If FA == FB, we can use SA.getOffset() - SB.getOffset() even if FA is
not a MCDataFragment, as the only case this can be problematic
(different offsets for a variable-size fragment) is invalid/unreachable.
If FA != FB, the `if (FI->getKind() != MCFragment::FT_Data)` check below
can bail out correctly.
This change will help Mach-O fold more expressions. For ELF this is NFC,
unless evaluateFixup has a bug that would evaluate an expression
differently.
Diffstat (limited to 'llvm/lib/Transforms/Utils/LoopUnrollRuntime.cpp')
0 files changed, 0 insertions, 0 deletions