- Change TargetInstrInfo::reMaterialize to pass in TargetRegisterInfo.
- If destination is a physical register and it has a subreg index, use the
sub-register instead.
This fixes PR5423.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@88745 91177308-0d34-0410-b5e6-96231b3b80d8
diff --git a/lib/CodeGen/TargetInstrInfoImpl.cpp b/lib/CodeGen/TargetInstrInfoImpl.cpp
index 50587f1..349d43c 100644
--- a/lib/CodeGen/TargetInstrInfoImpl.cpp
+++ b/lib/CodeGen/TargetInstrInfoImpl.cpp
@@ -135,11 +135,16 @@
MachineBasicBlock::iterator I,
unsigned DestReg,
unsigned SubIdx,
- const MachineInstr *Orig) const {
+ const MachineInstr *Orig,
+ const TargetRegisterInfo *TRI) const {
MachineInstr *MI = MBB.getParent()->CloneMachineInstr(Orig);
MachineOperand &MO = MI->getOperand(0);
- MO.setReg(DestReg);
- MO.setSubReg(SubIdx);
+ if (TargetRegisterInfo::isVirtualRegister(DestReg)) {
+ MO.setReg(DestReg);
+ MO.setSubReg(SubIdx);
+ } else {
+ MO.setReg(TRI->getSubReg(DestReg, SubIdx));
+ }
MBB.insert(I, MI);
}