diff options
Diffstat (limited to 'gcc/tree-ssa-loop-prefetch.c')
| -rw-r--r-- | gcc/tree-ssa-loop-prefetch.c | 8 |
1 files changed, 5 insertions, 3 deletions
diff --git a/gcc/tree-ssa-loop-prefetch.c b/gcc/tree-ssa-loop-prefetch.c index b58dbf6..9340bbb 100644 --- a/gcc/tree-ssa-loop-prefetch.c +++ b/gcc/tree-ssa-loop-prefetch.c @@ -1006,12 +1006,13 @@ fail: /* Issue prefetch instructions for array references in LOOPS. */ -void +unsigned int tree_ssa_prefetch_arrays (struct loops *loops) { unsigned i; struct loop *loop; bool unrolled = false; + int todo_flags = 0; if (!HAVE_prefetch /* It is possible to ask compiler for say -mtune=i486 -march=pentium4. @@ -1019,7 +1020,7 @@ tree_ssa_prefetch_arrays (struct loops *loops) of processor costs and i486 does not have prefetch, but -march=pentium4 causes HAVE_prefetch to be true. Ugh. */ || PREFETCH_BLOCK == 0) - return; + return 0; initialize_original_copy_tables (); @@ -1057,8 +1058,9 @@ tree_ssa_prefetch_arrays (struct loops *loops) if (unrolled) { scev_reset (); - cleanup_tree_cfg_loop (); + todo_flags |= TODO_cleanup_cfg; } free_original_copy_tables (); + return todo_flags; } |