add scaffolding for splitting of vectors.

[oota-llvm.git] / lib / CodeGen / LowerSubregs.cpp

diff --git a/lib/CodeGen/LowerSubregs.cpp b/lib/CodeGen/LowerSubregs.cpp
index ba2a193ca40a18acc4d40ea3d959683b060d159f..1b7f70e05ab31fa564211ce6b16e580516eec679 100644 (file)
--- a/lib/CodeGen/LowerSubregs.cpp
+++ b/lib/CodeGen/LowerSubregs.cpp
@@ -146,7 +146,7 @@ bool LowerSubregsInstructionPass::LowerInsert(MachineInstr *MI) {
   // of the destination, we copy the subreg into the source
   // However, this is only safe if the insert instruction is the kill
   // of the source register
-  bool revCopyOrder = MRI.isSubRegOf(InsReg, DstReg);    
+  bool revCopyOrder = MRI.isSubRegister(DstReg, InsReg);
   if (revCopyOrder && InsReg != DstSubReg) {
     if (MI->getOperand(1).isKill()) {
       DstSubReg = MRI.getSubReg(SrcReg, SubIdx);