Make code a bit less brittle by no hardcoding the number
of operands in an address in so many places.



git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@67945 91177308-0d34-0410-b5e6-96231b3b80d8
diff --git a/lib/Target/X86/X86InstrInfo.cpp b/lib/Target/X86/X86InstrInfo.cpp
index f5c3d1d..86d64a6 100644
--- a/lib/Target/X86/X86InstrInfo.cpp
+++ b/lib/Target/X86/X86InstrInfo.cpp
@@ -763,7 +763,7 @@
         MI->getOperand(2).getReg() == 0 &&
         MI->getOperand(3).getImm() == 0) {
       FrameIndex = MI->getOperand(0).getIndex();
-      return MI->getOperand(4).getReg();
+      return MI->getOperand(X86AddrNumOperands).getReg();
     }
     break;
   }