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Allow vectors in CreatePointerCast of constants.

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llvm-svn: 172615
This commit is contained in:
Evgeniy Stepanov 2013-01-16 14:41:46 +00:00
parent c6431b5743
commit 044fd8aa94
2 changed files with 34 additions and 3 deletions
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7
lib/IR/Constants.cpp
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@ -1465,10 +1465,11 @@ Constant *ConstantExpr::getTruncOrBitCast(Constant *C, Type *Ty) {
}
Constant *ConstantExpr::getPointerCast(Constant *S, Type *Ty) {
assert(S->getType()->isPointerTy() && "Invalid cast");
assert((Ty->isIntegerTy() || Ty->isPointerTy()) && "Invalid cast");
assert(S->getType()->isPtrOrPtrVectorTy() && "Invalid cast");
assert((Ty->isIntOrIntVectorTy() || Ty->isPtrOrPtrVectorTy()) &&
"Invalid cast");
if (Ty->isIntegerTy())
if (Ty->isIntOrIntVectorTy())
return getPtrToInt(S, Ty);
return getBitCast(S, Ty);
}

30
unittests/IR/ConstantsTest.cpp
View File

@ -121,6 +121,36 @@ TEST(ConstantsTest, FP128Test) {
EXPECT_TRUE(isa<ConstantFP>(X));
}
TEST(ConstantsTest, PointerCast) {
LLVMContext &C(getGlobalContext());
Type *Int8PtrTy = Type::getInt8PtrTy(C);
Type *Int32PtrTy = Type::getInt32PtrTy(C);
Type *Int64Ty = Type::getInt64Ty(C);
VectorType *Int8PtrVecTy = VectorType::get(Int8PtrTy, 4);
VectorType *Int32PtrVecTy = VectorType::get(Int32PtrTy, 4);
VectorType *Int64VecTy = VectorType::get(Int64Ty, 4);
// ptrtoint i8* to i64
EXPECT_EQ(Constant::getNullValue(Int64Ty),
ConstantExpr::getPointerCast(
Constant::getNullValue(Int8PtrTy), Int64Ty));
// bitcast i8* to i32*
EXPECT_EQ(Constant::getNullValue(Int32PtrTy),
ConstantExpr::getPointerCast(
Constant::getNullValue(Int8PtrTy), Int32PtrTy));
// ptrtoint <4 x i8*> to <4 x i64>
EXPECT_EQ(Constant::getNullValue(Int64VecTy),
ConstantExpr::getPointerCast(
Constant::getNullValue(Int8PtrVecTy), Int64VecTy));
// bitcast <4 x i8*> to <4 x i32*>
EXPECT_EQ(Constant::getNullValue(Int32PtrVecTy),
ConstantExpr::getPointerCast(
Constant::getNullValue(Int8PtrVecTy), Int32PtrVecTy));
}
#define CHECK(x, y) { \
std::string __s; \
raw_string_ostream __o(__s); \