TYPE_RESTRICT REFERENCE_TYPE parameters like restricted
DECL_BY_REFERENCE parameters.
* g++.dg/tree-ssa/restrict2.C: New test.
git-svn-id: svn+ssh://gcc.gnu.org/svn/gcc/trunk@179166
138bc75d-0d04-0410-961f-
82ee72b054a4
+2011-09-25 Jakub Jelinek <jakub@redhat.com>
+
+ * tree-ssa-structalias.c (intra_create_variable_infos): Treat
+ TYPE_RESTRICT REFERENCE_TYPE parameters like restricted
+ DECL_BY_REFERENCE parameters.
+
2011-09-25 Eric Botcazou <ebotcazou@adacore.com>
* tree-eh.c (cleanup_empty_eh): Allow a call to __builtin_stack_restore
+2011-09-25 Jakub Jelinek <jakub@redhat.com>
+
+ * g++.dg/tree-ssa/restrict2.C: New test.
+
2011-09-25 Ira Rosen <ira.rosen@linaro.org>
* lib/target-supports.exp (check_effective_target_vect64): New.
--- /dev/null
+// { dg-do compile }
+// { dg-options "-O2 -fdump-tree-optimized" }
+
+struct S { int *__restrict p; int q; };
+S s;
+
+int
+f1 (S x, S y)
+{
+ x.p[0] = 1;
+ y.p[0] = 0;
+// { dg-final { scan-tree-dump-times "return 1" 1 "optimized" } }
+ return x.p[0];
+}
+
+int
+f2 (S x)
+{
+ x.p[0] = 2;
+ s.p[0] = 0;
+// { dg-final { scan-tree-dump-times "return 2" 1 "optimized" } }
+ return x.p[0];
+}
+
+int
+f3 (S &__restrict x, S &__restrict y)
+{
+ x.p[0] = 3;
+ y.p[0] = 0;
+// { dg-final { scan-tree-dump-times "return 3" 1 "optimized" } }
+ return x.p[0];
+}
+
+int
+f4 (S &x, S &y)
+{
+ x.p[0] = 4;
+ y.p[0] = 0;
+// { dg-final { scan-tree-dump-times "return 4" 0 "optimized" } }
+ return x.p[0];
+}
+
+int
+f5 (S *__restrict x, S *__restrict y)
+{
+ x->p[0] = 5;
+ y->p[0] = 0;
+// We might handle this some day
+// { dg-final { scan-tree-dump-times "return 5" 1 "optimized" { xfail *-*-* } } }
+ return x->p[0];
+}
+
+int
+f6 (S *x, S *y)
+{
+ x->p[0] = 6;
+ y->p[0] = 0;
+// { dg-final { scan-tree-dump-times "return 6" 0 "optimized" } }
+ return x->p[0];
+}
+
+// { dg-final { cleanup-tree-dump "optimized" } }
varinfo_t p;
/* For restrict qualified pointers to objects passed by
- reference build a real representative for the pointed-to object. */
- if (DECL_BY_REFERENCE (t)
- && POINTER_TYPE_P (TREE_TYPE (t))
- && TYPE_RESTRICT (TREE_TYPE (t)))
+ reference build a real representative for the pointed-to object.
+ Treat restrict qualified references the same. */
+ if (TYPE_RESTRICT (TREE_TYPE (t))
+ && ((DECL_BY_REFERENCE (t) && POINTER_TYPE_P (TREE_TYPE (t)))
+ || TREE_CODE (TREE_TYPE (t)) == REFERENCE_TYPE))
{
struct constraint_expr lhsc, rhsc;
varinfo_t vi;