diff options
-rw-r--r-- | lib/CodeGen/LowerSubregs.cpp | 9 |
1 files changed, 5 insertions, 4 deletions
diff --git a/lib/CodeGen/LowerSubregs.cpp b/lib/CodeGen/LowerSubregs.cpp index 14acb71..5008f14 100644 --- a/lib/CodeGen/LowerSubregs.cpp +++ b/lib/CodeGen/LowerSubregs.cpp @@ -132,10 +132,11 @@ bool LowerSubregsInstructionPass::LowerExtract(MachineInstr *MI) { } } else { // Insert copy - const TargetRegisterClass *TRC = TRI.getPhysicalRegisterRegClass(DstReg); - assert(TRC == TRI.getPhysicalRegisterRegClass(SrcReg) && - "Extract subreg and Dst must be of same register class"); - TII.copyRegToReg(*MBB, MI, DstReg, SrcReg, TRC, TRC); + const TargetRegisterClass *TRCS = TRI.getPhysicalRegisterRegClass(DstReg); + const TargetRegisterClass *TRCD = TRI.getPhysicalRegisterRegClass(SrcReg); + bool Emitted = TII.copyRegToReg(*MBB, MI, DstReg, SrcReg, TRCD, TRCS); + (void)Emitted; + assert(Emitted && "Subreg and Dst must be of compatible register class"); // Transfer the kill/dead flags, if needed. if (MI->getOperand(0).isDead()) TransferDeadFlag(MI, DstReg, TRI); |