diff options
Diffstat (limited to 'llvm/lib/Target/R600/SILoadStoreOptimizer.cpp')
| -rw-r--r-- | llvm/lib/Target/R600/SILoadStoreOptimizer.cpp | 9 |
1 files changed, 9 insertions, 0 deletions
diff --git a/llvm/lib/Target/R600/SILoadStoreOptimizer.cpp b/llvm/lib/Target/R600/SILoadStoreOptimizer.cpp index a092bcc2daf..0cb67465012 100644 --- a/llvm/lib/Target/R600/SILoadStoreOptimizer.cpp +++ b/llvm/lib/Target/R600/SILoadStoreOptimizer.cpp @@ -285,6 +285,15 @@ MachineBasicBlock::iterator SILoadStoreOptimizer::mergeRead2Pair( LiveInterval &M0RegLI = LIS->getInterval(M0Reg->getReg()); LIS->shrinkToUses(&M0RegLI); + // Currently m0 is treated as a register class with one member instead of an + // implicit physical register. We are using the virtual register for the first + // one, but we still need to update the live range of the now unused second m0 + // virtual register to avoid verifier errors. + const MachineOperand *PairedM0Reg + = TII->getNamedOperand(*Paired, AMDGPU::OpName::m0); + LiveInterval &PairedM0RegLI = LIS->getInterval(PairedM0Reg->getReg()); + LIS->shrinkToUses(&PairedM0RegLI); + LIS->getInterval(DestReg); // Create new LI DEBUG(dbgs() << "Inserted read2: " << *Read2 << '\n'); |
