Make TargetInstrInfo::copyRegToReg return a bool indicating whether the copy requested
was inserted or not. This allows bitcast in fast isel to properly handle the case
where an appropriate reg-to-reg copy is not available.
llvm-svn: 55375
diff --git a/llvm/lib/Target/PowerPC/PPCInstrInfo.cpp b/llvm/lib/Target/PowerPC/PPCInstrInfo.cpp
index 674b36c..2ec6dcb 100644
--- a/llvm/lib/Target/PowerPC/PPCInstrInfo.cpp
+++ b/llvm/lib/Target/PowerPC/PPCInstrInfo.cpp
@@ -315,14 +315,14 @@
return 2;
}
-void PPCInstrInfo::copyRegToReg(MachineBasicBlock &MBB,
+bool PPCInstrInfo::copyRegToReg(MachineBasicBlock &MBB,
MachineBasicBlock::iterator MI,
unsigned DestReg, unsigned SrcReg,
const TargetRegisterClass *DestRC,
const TargetRegisterClass *SrcRC) const {
if (DestRC != SrcRC) {
- cerr << "Not yet supported!";
- abort();
+ // Not yet supported!
+ return false;
}
if (DestRC == PPC::GPRCRegisterClass) {
@@ -340,9 +340,11 @@
} else if (DestRC == PPC::CRBITRCRegisterClass) {
BuildMI(MBB, MI, get(PPC::CROR), DestReg).addReg(SrcReg).addReg(SrcReg);
} else {
- cerr << "Attempt to copy register that is not GPR or FPR";
- abort();
+ // Attempt to copy register that is not GPR or FPR
+ return false;
}
+
+ return true;
}
bool