diff options
Diffstat (limited to 'gcc/loop.c')
| -rw-r--r-- | gcc/loop.c | 9 |
1 files changed, 0 insertions, 9 deletions
@@ -79,9 +79,6 @@ Software Foundation, 59 Temple Place - Suite 330, Boston, MA /* For very tiny loops it is not worthwhile to prefetch even before the loop, since it is likely that the data are already in the cache. */ #define PREFETCH_BLOCKS_BEFORE_LOOP_MIN 2 -/* The minimal number of prefetch blocks that a loop must consume to make - the emitting of prefetch instruction in the body of loop worthwhile. */ -#define PREFETCH_BLOCKS_IN_LOOP_MIN 6 /* Parameterize some prefetch heuristics so they can be turned on and off easily for performance testing on new architecures. These can be @@ -146,12 +143,6 @@ Software Foundation, 59 Temple Place - Suite 330, Boston, MA #define PREFETCH_CONDITIONAL 1 #endif -/* If the loop requires more prefetches than the target can process in - parallel then don't prefetch anything in that loop. */ -#ifndef PREFETCH_LIMIT_TO_SIMULTANEOUS -#define PREFETCH_LIMIT_TO_SIMULTANEOUS 1 -#endif - #define LOOP_REG_LIFETIME(LOOP, REGNO) \ ((REGNO_LAST_LUID (REGNO) - REGNO_FIRST_LUID (REGNO))) |