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-rw-r--r--lib/Analysis/ConstantFolding.cpp11
1 files changed, 11 insertions, 0 deletions
diff --git a/lib/Analysis/ConstantFolding.cpp b/lib/Analysis/ConstantFolding.cpp
index 243611053c..6c99ad32bb 100644
--- a/lib/Analysis/ConstantFolding.cpp
+++ b/lib/Analysis/ConstantFolding.cpp
@@ -340,6 +340,17 @@ static bool ReadDataFromGlobal(Constant *C, uint64_t ByteOffset,
return true;
}
+ if (ConstantExpr *CE = dyn_cast<ConstantExpr>(C)) {
+ if (CE->getOpcode() == Instruction::IntToPtr) {
+ uint64_t PtrSize = TD.getTypeAllocSize(C->getType());
+ uint64_t IntSize = TD.getTypeAllocSize(C->getOperand(0)->getType());
+
+ if (PtrSize == IntSize)
+ return ReadDataFromGlobal(CE->getOperand(0), ByteOffset, CurPtr,
+ BytesLeft, TD);
+ }
+ }
+
// Otherwise, unknown initializer type.
return false;
}