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-rw-r--r--include/llvm/IR/Constants.h10
-rw-r--r--lib/IR/Constants.cpp13
2 files changed, 21 insertions, 2 deletions
diff --git a/include/llvm/IR/Constants.h b/include/llvm/IR/Constants.h
index f1cee5a..dac20c9 100644
--- a/include/llvm/IR/Constants.h
+++ b/include/llvm/IR/Constants.h
@@ -943,12 +943,20 @@ public:
Type *Ty ///< The type to trunc or bitcast C to
);
- /// @brief Create a BitCast or a PtrToInt cast constant expression
+ /// @brief Create a BitCast, AddrSpaceCast, or a PtrToInt cast constant
+ /// expression.
static Constant *getPointerCast(
Constant *C, ///< The pointer value to be casted (operand 0)
Type *Ty ///< The type to which cast should be made
);
+ /// @brief Create a BitCast or AddrSpaceCast for a pointer type depending on
+ /// the address space.
+ static Constant *getPointerBitCastOrAddrSpaceCast(
+ Constant *C, ///< The constant to addrspacecast or bitcast
+ Type *Ty ///< The type to bitcast or addrspacecast C to
+ );
+
/// @brief Create a ZExt, Bitcast or Trunc for integer -> integer casts
static Constant *getIntegerCast(
Constant *C, ///< The integer constant to be casted
diff --git a/lib/IR/Constants.cpp b/lib/IR/Constants.cpp
index a8a325a..690ac59 100644
--- a/lib/IR/Constants.cpp
+++ b/lib/IR/Constants.cpp
@@ -1499,7 +1499,18 @@ Constant *ConstantExpr::getPointerCast(Constant *S, Type *Ty) {
return getBitCast(S, Ty);
}
-Constant *ConstantExpr::getIntegerCast(Constant *C, Type *Ty,
+Constant *ConstantExpr::getPointerBitCastOrAddrSpaceCast(Constant *S,
+ Type *Ty) {
+ assert(S->getType()->isPtrOrPtrVectorTy() && "Invalid cast");
+ assert(Ty->isPtrOrPtrVectorTy() && "Invalid cast");
+
+ if (S->getType()->getPointerAddressSpace() != Ty->getPointerAddressSpace())
+ return getAddrSpaceCast(S, Ty);
+
+ return getBitCast(S, Ty);
+}
+
+Constant *ConstantExpr::getIntegerCast(Constant *C, Type *Ty,
bool isSigned) {
assert(C->getType()->isIntOrIntVectorTy() &&
Ty->isIntOrIntVectorTy() && "Invalid cast");