diff options
Diffstat (limited to 'lib/Analysis/ConstantFolding.cpp')
-rw-r--r-- | lib/Analysis/ConstantFolding.cpp | 11 |
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; } |