diff options
| author | Momchil Velikov <momchil.velikov@arm.com> | 2023-11-21 10:10:23 +0000 |
|---|---|---|
| committer | GitHub <noreply@github.com> | 2023-11-21 10:10:23 +0000 |
| commit | ef9bcace834e63f25bbbc5e8e2b615f89d85fb2f (patch) | |
| tree | f027ce0807cc28774bb1eee1eb04264dfcf1c4ed /llvm/lib/CodeGen/MachineSink.cpp | |
| parent | 4ccdab363618afbfd6958c4351c5a9ab3e37dcc8 (diff) | |
| download | llvm-ef9bcace834e63f25bbbc5e8e2b615f89d85fb2f.zip llvm-ef9bcace834e63f25bbbc5e8e2b615f89d85fb2f.tar.gz llvm-ef9bcace834e63f25bbbc5e8e2b615f89d85fb2f.tar.bz2 | |
[MachineSink][AArch64] Preserve debug location when rematerialising an instruction to replace a COPY (#72685)
Fixes a regression in `tools/lldb-dap/optimized/TestDAP_optimized.py`
caused by enabling "sink-and-fold" in MachineSink.
Diffstat (limited to 'llvm/lib/CodeGen/MachineSink.cpp')
| -rw-r--r-- | llvm/lib/CodeGen/MachineSink.cpp | 4 |
1 files changed, 1 insertions, 3 deletions
diff --git a/llvm/lib/CodeGen/MachineSink.cpp b/llvm/lib/CodeGen/MachineSink.cpp index 9ed6b22..48f5a21 100644 --- a/llvm/lib/CodeGen/MachineSink.cpp +++ b/llvm/lib/CodeGen/MachineSink.cpp @@ -506,7 +506,7 @@ bool MachineSinking::PerformSinkAndFold(MachineInstr &MI, MRI->clearKillFlags(UsedRegB); for (auto &[SinkDst, MaybeAM] : SinkInto) { - MachineInstr *New = nullptr; + [[maybe_unused]] MachineInstr *New = nullptr; LLVM_DEBUG(dbgs() << "Sinking copy of"; MI.dump(); dbgs() << "into"; SinkDst->dump()); if (SinkDst->isCopy()) { @@ -524,9 +524,7 @@ bool MachineSinking::PerformSinkAndFold(MachineInstr &MI, MachineBasicBlock::iterator InsertPt = SinkDst->getIterator(); Register DstReg = SinkDst->getOperand(0).getReg(); TII->reMaterialize(*SinkDst->getParent(), InsertPt, DstReg, 0, MI, *TRI); - // Reuse the source location from the COPY. New = &*std::prev(InsertPt); - New->setDebugLoc(SinkDst->getDebugLoc()); } else { // Fold instruction into the addressing mode of a memory instruction. New = TII->emitLdStWithAddr(*SinkDst, MaybeAM); |