diff options
Diffstat (limited to 'unittests/IR')
| -rw-r--r-- | unittests/IR/ConstantsTest.cpp | 30 |
1 files changed, 30 insertions, 0 deletions
diff --git a/unittests/IR/ConstantsTest.cpp b/unittests/IR/ConstantsTest.cpp index be34c1e..db783f7 100644 --- a/unittests/IR/ConstantsTest.cpp +++ b/unittests/IR/ConstantsTest.cpp @@ -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); \ |