File: alloc-align-attr.cpp

package info (click to toggle)
llvm-toolchain-9 1%3A9.0.1-16
  • links: PTS, VCS
  • area: main
  • in suites: bullseye
  • size: 882,436 kB
  • sloc: cpp: 4,167,636; ansic: 714,256; asm: 457,610; python: 155,927; objc: 65,094; sh: 42,856; lisp: 26,908; perl: 7,786; pascal: 7,722; makefile: 6,881; ml: 5,581; awk: 3,648; cs: 2,027; xml: 888; javascript: 381; ruby: 156
file content (40 lines) | stat: -rw-r--r-- 1,773 bytes parent folder | download | duplicates (7)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
// 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(int a) __attribute__((alloc_align(2)));// no-warning, ends up being int**.
  T Foo2(int 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}}

void dependent_impl() {
  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; 
  a.Foo(1);
  a.Foo2(1);

  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}}
}