| /* Test asm clobbers on x86. */ |
| |
| /* { dg-do run } */ |
| |
| extern void abort (void); |
| |
| int main () |
| { |
| int i; |
| __asm__ ("movl $1,%0\n\txorl %%eax,%%eax" : "=r" (i) : : "eax"); |
| if (i != 1) |
| abort (); |
| /* On darwin you can't call external functions from non-pic code, |
| however, clobbering ebx isn't valid in pic code. Instead of |
| disabling the whole test, just disable the ebx clobbering part. |
| Ditto for any x86 system that is ilp32 && pic. |
| */ |
| #if !(defined (__MACH__)) |
| #if ! defined (__PIC__) || defined (__x86_64__) |
| __asm__ ("movl $1,%0\n\txorl %%ebx,%%ebx" : "=r" (i) : : "ebx"); |
| if (i != 1) |
| abort (); |
| #endif /* ! pic || lp64 */ |
| #endif |
| __asm__ ("movl $1,%0\n\txorl %%ecx,%%ecx" : "=r" (i) : : "ecx"); |
| if (i != 1) |
| abort (); |
| __asm__ ("movl $1,%0\n\txorl %%edx,%%edx" : "=r" (i) : : "edx"); |
| if (i != 1) |
| abort (); |
| __asm__ ("movl $1,%0\n\txorl %%esi,%%esi" : "=r" (i) : : "esi"); |
| if (i != 1) |
| abort (); |
| __asm__ ("movl $1,%0\n\txorl %%edi,%%edi" : "=r" (i) : : "edi"); |
| if (i != 1) |
| abort (); |
| return 0; |
| } |
