| /* { dg-do run } */ |
| /* { dg-additional-options "-mcx16" { target { { i?86-*-* x86_64-*-* } && lp64 } } } */ |
| |
| #ifdef __x86_64__ |
| #include "cpuid.h" |
| #endif |
| |
| double d = 1.5; |
| long double ld = 3; |
| extern void abort (void); |
| |
| void |
| test (void) |
| { |
| #pragma omp atomic |
| d *= 1.25; |
| #pragma omp atomic |
| ld /= 0.75; |
| if (d != 1.875 || ld != 4.0L) |
| abort (); |
| } |
| |
| int |
| main (void) |
| { |
| #ifdef __x86_64__ |
| unsigned int eax, ebx, ecx, edx; |
| |
| if (!__get_cpuid (1, &eax, &ebx, &ecx, &edx)) |
| return 0; |
| |
| if (!(ecx & bit_CMPXCHG16B)) |
| return 0; |
| #endif |
| test (); |
| return 0; |
| } |
