diff options
| -rw-r--r-- | lib/CodeGen/CriticalAntiDepBreaker.cpp | 14 |
1 files changed, 7 insertions, 7 deletions
diff --git a/lib/CodeGen/CriticalAntiDepBreaker.cpp b/lib/CodeGen/CriticalAntiDepBreaker.cpp index c684cdcd1b..cf8c71dab2 100644 --- a/lib/CodeGen/CriticalAntiDepBreaker.cpp +++ b/lib/CodeGen/CriticalAntiDepBreaker.cpp @@ -54,7 +54,7 @@ void CriticalAntiDepBreaker::StartBlock(MachineBasicBlock *BB) { // Clear "do not change" set. KeepRegs.clear(); - bool IsReturnBlock = (!BB->empty() && BB->back().isReturn()); + bool IsReturnBlock = (BBSize != 0 && BB->back().isReturn()); // Determine the live-out physregs for this block. if (IsReturnBlock) { @@ -63,14 +63,14 @@ void CriticalAntiDepBreaker::StartBlock(MachineBasicBlock *BB) { E = MRI.liveout_end(); I != E; ++I) { unsigned Reg = *I; Classes[Reg] = reinterpret_cast<TargetRegisterClass *>(-1); - KillIndices[Reg] = BB->size(); + KillIndices[Reg] = BBSize; DefIndices[Reg] = ~0u; // Repeat, for all aliases. for (const uint16_t *Alias = TRI->getAliasSet(Reg); *Alias; ++Alias) { unsigned AliasReg = *Alias; Classes[AliasReg] = reinterpret_cast<TargetRegisterClass *>(-1); - KillIndices[AliasReg] = BB->size(); + KillIndices[AliasReg] = BBSize; DefIndices[AliasReg] = ~0u; } } @@ -85,14 +85,14 @@ void CriticalAntiDepBreaker::StartBlock(MachineBasicBlock *BB) { E = (*SI)->livein_end(); I != E; ++I) { unsigned Reg = *I; Classes[Reg] = reinterpret_cast<TargetRegisterClass *>(-1); - KillIndices[Reg] = BB->size(); + KillIndices[Reg] = BBSize; DefIndices[Reg] = ~0u; // Repeat, for all aliases. for (const uint16_t *Alias = TRI->getAliasSet(Reg); *Alias; ++Alias) { unsigned AliasReg = *Alias; Classes[AliasReg] = reinterpret_cast<TargetRegisterClass *>(-1); - KillIndices[AliasReg] = BB->size(); + KillIndices[AliasReg] = BBSize; DefIndices[AliasReg] = ~0u; } } @@ -106,14 +106,14 @@ void CriticalAntiDepBreaker::StartBlock(MachineBasicBlock *BB) { unsigned Reg = *I; if (!IsReturnBlock && !Pristine.test(Reg)) continue; Classes[Reg] = reinterpret_cast<TargetRegisterClass *>(-1); - KillIndices[Reg] = BB->size(); + KillIndices[Reg] = BBSize; DefIndices[Reg] = ~0u; // Repeat, for all aliases. for (const uint16_t *Alias = TRI->getAliasSet(Reg); *Alias; ++Alias) { unsigned AliasReg = *Alias; Classes[AliasReg] = reinterpret_cast<TargetRegisterClass *>(-1); - KillIndices[AliasReg] = BB->size(); + KillIndices[AliasReg] = BBSize; DefIndices[AliasReg] = ~0u; } } |