File: gen-attrs-5.C

package info (click to toggle)
gcc-arm-none-eabi 15%3A14.2.rel1-1
  • links: PTS, VCS
  • area: main
  • in suites: forky, sid
  • size: 1,099,328 kB
  • sloc: cpp: 3,627,108; ansic: 2,571,498; ada: 834,230; f90: 235,082; makefile: 79,231; asm: 74,984; xml: 51,692; exp: 39,736; sh: 33,298; objc: 15,629; python: 15,069; fortran: 14,429; pascal: 7,003; awk: 5,070; perl: 3,106; ml: 285; lisp: 253; lex: 204; haskell: 135
file content (23 lines) | stat: -rw-r--r-- 794 bytes parent folder | download | duplicates (10) 
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
 
// { dg-do compile { target c++11 } }
//
// There were two related problems here, depending on the vintage.  At
// one time:
//
//    typedef struct A { ... } A [[gnu::aligned (16)]];
//
// would cause original_types to go into an infinite loop.  At other
// times, the attributes applied to an explicit typedef would be lost
// (check_b3 would have a negative size).

// First check that the declaration is accepted and has an effect.
typedef struct A { int i; } A [[gnu::aligned (16)]];
int check_A[alignof (A) >= 16 ? 1 : -1];

// Check that the alignment is only applied to the typedef.
struct B { int i; };
struct B b1;
typedef struct B B [[gnu::aligned (16)]];
struct B b2;
B b3;
int check_b1[__alignof__ (b1) == __alignof__ (b2) ? 1 : -1];
int check_b3[__alignof__ (b3) >= 16 ? 1 : -1];