forked from OSchip/llvm-project
107 lines
3.3 KiB
C++
107 lines
3.3 KiB
C++
// RUN: %clang_cc1 -triple x86_64-apple-darwin -emit-llvm -O0 %s -o - 2>&1 -std=c++11 | FileCheck %s
|
|
|
|
namespace templates {
|
|
void *my_malloc(int N) __attribute__((alloc_size(1)));
|
|
void *my_calloc(int N, int M) __attribute__((alloc_size(1, 2)));
|
|
|
|
struct MyType {
|
|
int arr[4];
|
|
};
|
|
|
|
template <typename T> int callMalloc();
|
|
|
|
template <typename T, int N> int callCalloc();
|
|
|
|
// CHECK-LABEL: define{{.*}} i32 @_ZN9templates6testItEv()
|
|
int testIt() {
|
|
// CHECK: call noundef i32 @_ZN9templates10callMallocINS_6MyTypeEEEiv
|
|
// CHECK: call noundef i32 @_ZN9templates10callCallocINS_6MyTypeELi4EEEiv
|
|
return callMalloc<MyType>() + callCalloc<MyType, 4>();
|
|
}
|
|
|
|
// CHECK-LABEL: define linkonce_odr noundef i32
|
|
// @_ZN9templates10callMallocINS_6MyTypeEEEiv
|
|
template <typename T> int callMalloc() {
|
|
static_assert(sizeof(T) == 16, "");
|
|
// CHECK: ret i32 16
|
|
return __builtin_object_size(my_malloc(sizeof(T)), 0);
|
|
}
|
|
|
|
// CHECK-LABEL: define linkonce_odr noundef i32
|
|
// @_ZN9templates10callCallocINS_6MyTypeELi4EEEiv
|
|
template <typename T, int N> int callCalloc() {
|
|
static_assert(sizeof(T) * N == 64, "");
|
|
// CHECK: ret i32 64
|
|
return __builtin_object_size(my_malloc(sizeof(T) * N), 0);
|
|
}
|
|
}
|
|
|
|
namespace templated_alloc_size {
|
|
using size_t = unsigned long;
|
|
|
|
// We don't need bodies for any of these, because they're only used in
|
|
// __builtin_object_size, and that shouldn't need anything but a function
|
|
// decl with alloc_size on it.
|
|
template <typename T>
|
|
T *my_malloc(size_t N = sizeof(T)) __attribute__((alloc_size(1)));
|
|
|
|
template <typename T>
|
|
T *my_calloc(size_t M, size_t N = sizeof(T)) __attribute__((alloc_size(2, 1)));
|
|
|
|
template <size_t N>
|
|
void *dependent_malloc(size_t NT = N) __attribute__((alloc_size(1)));
|
|
|
|
template <size_t N, size_t M>
|
|
void *dependent_calloc(size_t NT = N, size_t MT = M)
|
|
__attribute__((alloc_size(1, 2)));
|
|
|
|
template <typename T, size_t M>
|
|
void *dependent_calloc2(size_t NT = sizeof(T), size_t MT = M)
|
|
__attribute__((alloc_size(1, 2)));
|
|
|
|
// CHECK-LABEL: define{{.*}} noundef i32 @_ZN20templated_alloc_size6testItEv
|
|
int testIt() {
|
|
// 122 = 4 + 5*4 + 6 + 7*8 + 4*9
|
|
// CHECK: ret i32 122
|
|
return __builtin_object_size(my_malloc<int>(), 0) +
|
|
__builtin_object_size(my_calloc<int>(5), 0) +
|
|
__builtin_object_size(dependent_malloc<6>(), 0) +
|
|
__builtin_object_size(dependent_calloc<7, 8>(), 0) +
|
|
__builtin_object_size(dependent_calloc2<int, 9>(), 0);
|
|
}
|
|
} // namespace templated_alloc_size
|
|
|
|
// Be sure that an ExprWithCleanups doesn't deter us.
|
|
namespace alloc_size_with_cleanups {
|
|
struct Foo {
|
|
~Foo();
|
|
};
|
|
|
|
void *my_malloc(const Foo &, int N) __attribute__((alloc_size(2)));
|
|
|
|
// CHECK-LABEL: define{{.*}} noundef i32 @_ZN24alloc_size_with_cleanups6testItEv
|
|
int testIt() {
|
|
int *const p = (int *)my_malloc(Foo{}, 3);
|
|
// CHECK: ret i32 3
|
|
return __builtin_object_size(p, 0);
|
|
}
|
|
} // namespace alloc_size_with_cleanups
|
|
|
|
class C {
|
|
public:
|
|
void *my_malloc(int N) __attribute__((alloc_size(2)));
|
|
void *my_calloc(int N, int M) __attribute__((alloc_size(2, 3)));
|
|
};
|
|
|
|
// CHECK-LABEL: define{{.*}} noundef i32 @_Z16callMemberMallocv
|
|
int callMemberMalloc() {
|
|
// CHECK: ret i32 16
|
|
return __builtin_object_size(C().my_malloc(16), 0);
|
|
}
|
|
|
|
// CHECK-LABEL: define{{.*}} noundef i32 @_Z16callMemberCallocv
|
|
int callMemberCalloc() {
|
|
// CHECK: ret i32 32
|
|
return __builtin_object_size(C().my_calloc(16, 2), 0);
|
|
}
|