Change TargetInstrInfo::isMoveInstr to return source and destination sub-register indices as well.

llvm-svn: 62600
2009-01-20 19:12:24 +00:00
parent 1ce41edd8d
commit c544cb0eca
32 changed files with 161 additions and 127 deletions
--- a/llvm/lib/CodeGen/RegAllocLocal.cpp
+++ b/llvm/lib/CodeGen/RegAllocLocal.cpp
@@ -960,8 +960,9 @@ void RALocal::AllocateBasicBlock(MachineBasicBlock &MBB) {
    }
    
    // Finally, if this is a noop copy instruction, zap it.
-    unsigned SrcReg, DstReg;
-    if (TII->isMoveInstr(*MI, SrcReg, DstReg) && SrcReg == DstReg)
+    unsigned SrcReg, DstReg, SrcSubReg, DstSubReg;
+    if (TII->isMoveInstr(*MI, SrcReg, DstReg, SrcSubReg, DstSubReg) &&
+        SrcReg == DstReg)
      MBB.erase(MI);
  }