MI keeps a ptr of TargetInstrDescriptor, use it.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@32296 91177308-0d34-0410-b5e6-96231b3b80d8
diff --git a/lib/CodeGen/VirtRegMap.cpp b/lib/CodeGen/VirtRegMap.cpp
index 60a773b..186072c 100644
--- a/lib/CodeGen/VirtRegMap.cpp
+++ b/lib/CodeGen/VirtRegMap.cpp
@@ -97,7 +97,8 @@
   }
 
   ModRef MRInfo;
-  if (TII.getOperandConstraint(OldMI->getOpcode(), OpNo, TOI::TIED_TO) != -1) {
+  if (OldMI->getInstrDescriptor()->
+      getOperandConstraint(OpNo, TOI::TIED_TO) != -1) {
     // Folded a two-address operand.
     MRInfo = isModRef;
   } else if (OldMI->getOperand(OpNo).isDef()) {
@@ -591,7 +592,7 @@
         // aren't allowed to modify the reused register.  If none of these cases
         // apply, reuse it.
         bool CanReuse = true;
-        int ti = TII->getOperandConstraint(MI.getOpcode(), i, TOI::TIED_TO);
+        int ti = MI.getInstrDescriptor()->getOperandConstraint(i, TOI::TIED_TO);
         if (ti != -1 &&
             MI.getOperand(ti).isReg() && 
             MI.getOperand(ti).getReg() == VirtReg) {