| /* { dg-do run } */ |
| /* { dg-additional-options "-march=pentium" { target { { i?86-*-* x86_64-*-* } && ia32 } } } */ |
| |
| #ifdef __i386__ |
| #include "cpuid.h" |
| #endif |
| |
| extern void abort (void); |
| double d; |
| struct |
| { |
| int i; |
| double e; |
| int j; |
| } x; |
| |
| void |
| f1 (void) |
| { |
| #pragma omp atomic |
| d += 7.5; |
| #pragma omp atomic |
| d *= 2.5; |
| #pragma omp atomic |
| d /= 0.25; |
| } |
| |
| void |
| f2 (void) |
| { |
| #pragma omp atomic |
| x.e += 7.5; |
| #pragma omp atomic |
| x.e *= 2.5; |
| #pragma omp atomic |
| x.e /= 0.25; |
| } |
| |
| int |
| main (void) |
| { |
| #ifdef __i386__ |
| unsigned int eax, ebx, ecx, edx; |
| |
| if (!__get_cpuid (1, &eax, &ebx, &ecx, &edx)) |
| return 0; |
| |
| if (!(edx & bit_CMPXCHG8B)) |
| return 0; |
| #endif |
| |
| d = 1.0; |
| f1 (); |
| if (d != 85.0) |
| abort (); |
| |
| x.e = 1.0; |
| f2 (); |
| if (x.i != 0 || x.e != 85.0 || x.j != 0) |
| abort (); |
| return 0; |
| } |