[opaque pointer type] Explicitly store the pointee type of the result of a GEP

Alternatively, this type could be derived on-demand whenever
getResultElementType is called - if someone thinks that's the better
choice (simple time/space tradeoff), I'm happy to give it a go.

llvm-svn: 238716

1 files changed, 2 insertions, 1 deletions

diff --git a/llvm/lib/IR/Instructions.cpp b/llvm/lib/IR/Instructions.cpp
index 332df4804da..1478bffe7c3 100644
--- a/llvm/lib/IR/Instructions.cpp
+++ b/llvm/lib/IR/Instructions.cpp
@@ -1249,7 +1249,8 @@ GetElementPtrInst::GetElementPtrInst(const GetElementPtrInst &GEPI)
                   OperandTraits<GetElementPtrInst>::op_end(this) -
                       GEPI.getNumOperands(),
                   GEPI.getNumOperands()),
-      SourceElementType(GEPI.SourceElementType) {
+      SourceElementType(GEPI.SourceElementType),
+      ResultElementType(GEPI.ResultElementType) {
   std::copy(GEPI.op_begin(), GEPI.op_end(), op_begin());
   SubclassOptionalData = GEPI.SubclassOptionalData;
 }