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// RUN: %clang_cc1 -fsyntax-only -verify %s
struct param_num {
void* Foo(int a) __attribute__((alloc_align(1))); // expected-error {{'alloc_align' attribute is invalid for the implicit this argument}}
};
template <typename T>
struct dependent_ret {
T *Foo(unsigned long long a) __attribute__((alloc_align(2))); // no-warning, ends up being int**.
T Foo2(unsigned long long a) __attribute__((alloc_align(2))); // expected-warning {{'alloc_align' attribute only applies to return values that are pointers or references}}
};
// Following 2 errors associated only with the 'float' versions below.
template <typename T>
struct dependent_param_struct {
void* Foo(T param) __attribute__((alloc_align(2))); // expected-error {{'alloc_align' attribute argument may only refer to a function parameter of integer type}}
};
template <typename T>
void* dependent_param_func(T param) __attribute__((alloc_align(1)));// expected-error {{'alloc_align' attribute argument may only refer to a function parameter of integer type}}
template <int T>
void* illegal_align_param(int p) __attribute__((alloc_align(T))); // expected-error {{'alloc_align' attribute requires parameter 1 to be an integer constant}}
template <typename T>
T dependent_return_type(int p) __attribute__((alloc_align(1)));
void dependent_impl(int align) {
dependent_ret<int> a; // expected-note {{in instantiation of template class 'dependent_ret<int>' requested here}}
a.Foo(1);
a.Foo2(1);
dependent_ret<int *> b;
b.Foo(1);
b.Foo2(1);
b.Foo(3); // expected-warning {{requested alignment is not a power of 2}}
b.Foo2(3); // expected-warning {{requested alignment is not a power of 2}}
b.Foo(8589934592ull); // expected-warning {{requested alignment must be 4294967296 bytes or smaller; maximum alignment assumed}}
b.Foo2(8589934592ull); // expected-warning {{requested alignment must be 4294967296 bytes or smaller; maximum alignment assumed}}
b.Foo(align);
b.Foo2(align);
dependent_param_struct<int> c;
c.Foo(1);
dependent_param_struct<float> d; // expected-note {{in instantiation of template class 'dependent_param_struct<float>' requested here}}
d.Foo(1.0);
dependent_param_func<int>(1);
dependent_param_func<float>(1); // expected-note {{in instantiation of function template specialization 'dependent_param_func<float>' requested here}}
}
namespace GH26612 {
// This issue was about the align_value attribute, but alloc_align has the
// same problematic code pattern, so is being fixed at the same time despite
// not having the same crashing behavior.
template <class T>
__attribute__((alloc_align(1))) T f(T x); // expected-warning {{'alloc_align' attribute only applies to return values that are pointers or references}}
void foo() {
f<int>(0); // expected-note {{in instantiation of function template specialization 'GH26612::f<int>' requested here}}
}
} // namespace GH26612
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