diff options
Diffstat (limited to 'boehm-gc/include/private/gcconfig.h')
| -rw-r--r-- | boehm-gc/include/private/gcconfig.h | 8 |
1 files changed, 4 insertions, 4 deletions
diff --git a/boehm-gc/include/private/gcconfig.h b/boehm-gc/include/private/gcconfig.h index b07d4b9a18e..3ecbcdf5ffe 100644 --- a/boehm-gc/include/private/gcconfig.h +++ b/boehm-gc/include/private/gcconfig.h @@ -1667,10 +1667,10 @@ extern int etext[]; # define DATASTART ((ptr_t)((((word) (etext)) + 0xfff) & ~0xfff)) # endif -# define PREFETCH(x) \ - __asm__ __volatile__ (" prefetch %0": : "m"(*(char *)(x))) -# define PREFETCH_FOR_WRITE(x) \ - __asm__ __volatile__ (" prefetchw %0": : "m"(*(char *)(x))) +# if defined(__GNUC__) && __GNUC__ >= 3 +# define PREFETCH(x) __builtin_prefetch ((x), 0, 0) +# define PREFETCH_FOR_WRITE(x) __builtin_prefetch ((x), 1) +# endif # endif # endif |