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.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@55375 91177308-0d34-0410-b5e6-96231b3b80d8
diff --git a/lib/Target/ARM/ARMInstrInfo.cpp b/lib/Target/ARM/ARMInstrInfo.cpp
index 7fe3b47..839ee6a 100644
--- a/lib/Target/ARM/ARMInstrInfo.cpp
+++ b/lib/Target/ARM/ARMInstrInfo.cpp
@@ -459,14 +459,14 @@
return 2;
}
-void ARMInstrInfo::copyRegToReg(MachineBasicBlock &MBB,
+bool ARMInstrInfo::copyRegToReg(MachineBasicBlock &MBB,
MachineBasicBlock::iterator I,
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 == ARM::GPRRegisterClass) {
@@ -484,7 +484,9 @@
AddDefaultPred(BuildMI(MBB, I, get(ARM::FCPYD), DestReg)
.addReg(SrcReg));
else
- abort();
+ return false;
+
+ return true;
}
static const MachineInstrBuilder &ARMInstrAddOperand(MachineInstrBuilder &MIB,