reapply r101364, which has been backed out in r101368

with a fix

rotate CallInst operands, i.e. move callee to the back
of the operand array

the motivation for this patch are laid out in my mail to llvm-commits:
more efficient access to operands and callee, faster callgraph-construction,
smaller compiler binary

llvm-svn: 101397

1 files changed, 3 insertions, 3 deletions

diff --git a/llvm/lib/VMCore/IntrinsicInst.cpp b/llvm/lib/VMCore/IntrinsicInst.cpp
index c37d5b03cdc..098d2326976 100644
--- a/llvm/lib/VMCore/IntrinsicInst.cpp
+++ b/llvm/lib/VMCore/IntrinsicInst.cpp
@@ -54,7 +54,7 @@ Value *DbgInfoIntrinsic::StripCast(Value *C) {
 ///
 
 Value *DbgDeclareInst::getAddress() const {
-  if (MDNode* MD = cast_or_null<MDNode>(getOperand(1)))
+  if (MDNode* MD = cast_or_null<MDNode>(getOperand(0)))
     return MD->getOperand(0);
   else
     return NULL;
@@ -65,9 +65,9 @@ Value *DbgDeclareInst::getAddress() const {
 ///
 
 const Value *DbgValueInst::getValue() const {
-  return cast<MDNode>(getOperand(1))->getOperand(0);
+  return cast<MDNode>(getOperand(0))->getOperand(0);
 }
 
 Value *DbgValueInst::getValue() {
-  return cast<MDNode>(getOperand(1))->getOperand(0);
+  return cast<MDNode>(getOperand(0))->getOperand(0);
 }