* tree-ssa-loop-prefetch.c: Add debug for dropped prefetches.
git-svn-id: svn+ssh://gcc.gnu.org/svn/gcc/trunk@159256
138bc75d-0d04-0410-961f-
82ee72b054a4
+2010-05-11 Christian Borntraeger <borntraeger@de.ibm.com>
+
+ * tree-ssa-loop-prefetch.c: Add debug for dropped prefetches.
+
2010-05-11 Jakub Jelinek <jakub@redhat.com>
* gcc.c (execute): For -### don't quote arguments that
/* For now do not issue prefetches for only first few of the
iterations. */
if (ref->prefetch_before != PREFETCH_ALL)
- return false;
+ {
+ if (dump_file && (dump_flags & TDF_DETAILS))
+ fprintf (dump_file, "Ignoring %p due to prefetch_before\n",
+ (void *) ref);
+ return false;
+ }
/* Do not prefetch nontemporal stores. */
if (ref->storent_p)
- return false;
+ {
+ if (dump_file && (dump_flags & TDF_DETAILS))
+ fprintf (dump_file, "Ignoring nontemporal store %p\n", (void *) ref);
+ return false;
+ }
return true;
}