teach valuetracking about ConstantDataSequential

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@148790 91177308-0d34-0410-b5e6-96231b3b80d8

1 files changed, 18 insertions, 0 deletions

diff --git a/lib/VMCore/Constants.cpp b/lib/VMCore/Constants.cpp
index df98d75864..55b97ef706 100644
--- a/lib/VMCore/Constants.cpp
+++ b/lib/VMCore/Constants.cpp
@@ -624,6 +624,15 @@ Constant *ConstantAggregateZero::getElementValue(Constant *C) {
   return getStructElement(cast<ConstantInt>(C)->getZExtValue());
 }
 
+/// getElementValue - Return a zero of the right value for the specified GEP
+/// index.
+Constant *ConstantAggregateZero::getElementValue(unsigned Idx) {
+  if (isa<SequentialType>(getType()))
+    return getSequentialElement();
+  return getStructElement(Idx);
+}
+
+
 //===----------------------------------------------------------------------===//
 //                         UndefValue Implementation
 //===----------------------------------------------------------------------===//
@@ -648,6 +657,15 @@ UndefValue *UndefValue::getElementValue(Constant *C) {
   return getStructElement(cast<ConstantInt>(C)->getZExtValue());
 }
 
+/// getElementValue - Return an undef of the right value for the specified GEP
+/// index.
+UndefValue *UndefValue::getElementValue(unsigned Idx) {
+  if (isa<SequentialType>(getType()))
+    return getSequentialElement();
+  return getStructElement(Idx);
+}
+
+
 
 //===----------------------------------------------------------------------===//
 //                            ConstantXXX Classes