@@ -1,3 +1,10 @@
+2015-01-15 Richard Biener <rguenther@suse.de>
+ Martin Liska <mliska@suse.cz>
+
+ PR middle-end/63704
+ * alias.c (mems_in_disjoint_alias_sets_p): Remove assert
+ and instead return false when !fstrict-aliasing.
+
2014-10-21 Jakub Jelinek <jakub@redhat.com>
PR tree-optimization/63563
@@ -383,17 +383,9 @@ get_alias_set_entry (alias_set_type alias_set)
static inline int
mems_in_disjoint_alias_sets_p (const_rtx mem1, const_rtx mem2)
{
-/* Perform a basic sanity check. Namely, that there are no alias sets
- if we're not using strict aliasing. This helps to catch bugs
- whereby someone uses PUT_CODE, but doesn't clear MEM_ALIAS_SET, or
- where a MEM is allocated in some way other than by the use of
- gen_rtx_MEM, and the MEM_ALIAS_SET is not cleared. If we begin to
- use alias sets to indicate that spilled registers cannot alias each
- other, we might need to remove this check. */
- gcc_assert (flag_strict_aliasing
- || (!MEM_ALIAS_SET (mem1) && !MEM_ALIAS_SET (mem2)));
-
- return ! alias_sets_conflict_p (MEM_ALIAS_SET (mem1), MEM_ALIAS_SET (mem2));
+ return (flag_strict_aliasing
+ && ! alias_sets_conflict_p (MEM_ALIAS_SET (mem1),
+ MEM_ALIAS_SET (mem2)));
}
/* Insert the NODE into the splay tree given by DATA. Used by