diff options
Diffstat (limited to 'gcc/tree-ssa-alias.c')
| -rw-r--r-- | gcc/tree-ssa-alias.c | 7 |
1 files changed, 7 insertions, 0 deletions
diff --git a/gcc/tree-ssa-alias.c b/gcc/tree-ssa-alias.c index 14733675262..e8bca84ba35 100644 --- a/gcc/tree-ssa-alias.c +++ b/gcc/tree-ssa-alias.c @@ -273,6 +273,13 @@ ptr_derefs_may_alias_p (tree ptr1, tree ptr2) if (!pi1 || !pi2) return true; + /* If both pointers are restrict-qualified try to disambiguate + with restrict information. */ + if (TYPE_RESTRICT (TREE_TYPE (ptr1)) + && TYPE_RESTRICT (TREE_TYPE (ptr2)) + && !pt_solutions_same_restrict_base (&pi1->pt, &pi2->pt)) + return false; + /* ??? This does not use TBAA to prune decls from the intersection that not both pointers may access. */ return pt_solutions_intersect (&pi1->pt, &pi2->pt); |