From: H.J. Lu Date: Tue, 6 Apr 2004 18:05:05 +0000 (+0000) Subject: gcconfig.h (PREFETCH): Use __builtin_prefetch for gcc >= 3.0. X-Git-Url: https://git.libre-soc.org/?a=commitdiff_plain;h=652466353b681ca7d7d6e04095a41c638ef794cf;p=gcc.git gcconfig.h (PREFETCH): Use __builtin_prefetch for gcc >= 3.0. 2004-04-06 H.J. Lu * include/private/gcconfig.h (PREFETCH): Use __builtin_prefetch for gcc >= 3.0. (PREFETCH_FOR_WRITE): Likewise. From-SVN: r80459 --- diff --git a/boehm-gc/ChangeLog b/boehm-gc/ChangeLog index a8409143c1e..182fef1cab3 100644 --- a/boehm-gc/ChangeLog +++ b/boehm-gc/ChangeLog @@ -1,3 +1,9 @@ +2004-04-06 H.J. Lu + + * include/private/gcconfig.h (PREFETCH): Use __builtin_prefetch + for gcc >= 3.0. + (PREFETCH_FOR_WRITE): Likewise. + 2004-03-10 Kelley Cook * configure.ac: Bump AC_PREREQ to 2.59. diff --git a/boehm-gc/include/private/gcconfig.h b/boehm-gc/include/private/gcconfig.h index a13ad2ef835..32b6e482cfe 100644 --- a/boehm-gc/include/private/gcconfig.h +++ b/boehm-gc/include/private/gcconfig.h @@ -1801,10 +1801,10 @@ 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