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| author | Matt Arsenault <Matthew.Arsenault@amd.com> | 2023-12-05 10:40:13 +0700 |
|---|---|---|
| committer | GitHub <noreply@github.com> | 2023-12-05 10:40:13 +0700 |
| commit | 74c00d432944ca4ada5f105b0d396b55f2692f05 (patch) | |
| tree | 190d185400a89404450f573ecb3dff3921b0c90a /llvm/lib/CodeGen/LiveRangeEdit.cpp | |
| parent | 90681d3a41c0f8e12b51b73f1bfa9c366f8189d8 (diff) | |
| download | llvm-74c00d432944ca4ada5f105b0d396b55f2692f05.zip llvm-74c00d432944ca4ada5f105b0d396b55f2692f05.tar.gz llvm-74c00d432944ca4ada5f105b0d396b55f2692f05.tar.bz2 | |
LiveRangeEdit: Clear all dead flags when rematerializing (#73933)
It's allowed to rematerialize instructions with implicit-defs of the
same register as the single explicit def. If this happened, it was only
clearing the dead flags on the one main result.
Diffstat (limited to 'llvm/lib/CodeGen/LiveRangeEdit.cpp')
| -rw-r--r-- | llvm/lib/CodeGen/LiveRangeEdit.cpp | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/llvm/lib/CodeGen/LiveRangeEdit.cpp b/llvm/lib/CodeGen/LiveRangeEdit.cpp index ff49e08..0203034 100644 --- a/llvm/lib/CodeGen/LiveRangeEdit.cpp +++ b/llvm/lib/CodeGen/LiveRangeEdit.cpp @@ -190,7 +190,7 @@ SlotIndex LiveRangeEdit::rematerializeAt(MachineBasicBlock &MBB, // DestReg of the cloned instruction cannot be Dead. Set isDead of DestReg // to false anyway in case the isDead flag of RM.OrigMI's dest register // is true. - (*--MI).getOperand(0).setIsDead(false); + (*--MI).clearRegisterDeads(DestReg); Rematted.insert(RM.ParentVNI); ++NumReMaterialization; |