gcc/testsuite/ChangeLog:
2016-08-16 Martin Liska <mli...@suse.cz>
* gcc.dg/tree-ssa/builtins-folding.c: New test.
---
gcc/testsuite/gcc.dg/tree-ssa/builtins-folding.c | 59 ++++++++++++++++++++++++
1 file changed, 59 insertions(+)
create mode 100644 gcc/testsuite/gcc.dg/tree-ssa/builtins-folding.c
diff --git a/gcc/testsuite/gcc.dg/tree-ssa/builtins-folding.c
b/gcc/testsuite/gcc.dg/tree-ssa/builtins-folding.c
new file mode 100644
index 0000000..df63681
--- /dev/null
+++ b/gcc/testsuite/gcc.dg/tree-ssa/builtins-folding.c
@@ -0,0 +1,59 @@
+/* { dg-do compile } */
+/* { dg-options "-O2 -fdump-tree-optimized" } */
+
+char *buffer1;
+
+void
+main_test (void)
+{
+ const char* const foo1 = "hello world";
+
+ /* MEMCHR. */
+ if (__builtin_memchr (foo1, 'x', 11))
+ __builtin_abort ();
+ if (__builtin_memchr (foo1, 'x', 100))
+ __builtin_abort ();
+ if (__builtin_memchr (buffer1, 'x', 0) != 0)
+ __builtin_abort ();
+ if (__builtin_memchr (foo1, 'o', 11) != foo1 + 4)
+ __builtin_abort ();
+ if (__builtin_memchr (foo1, 'w', 2))
+ __builtin_abort ();
+ if (__builtin_memchr (foo1 + 5, 'o', 6) != foo1 + 7)
+ __builtin_abort ();
+ if (__builtin_memchr (foo1, 'd', 11) != foo1 + 10)
+ __builtin_abort ();
+ if (__builtin_memchr (foo1, 'd', 10))
+ __builtin_abort ();
+ if (__builtin_memchr (foo1, '\0', 11))
+ __builtin_abort ();
+ if (__builtin_memchr (foo1, '\0', 12) != foo1 + 11)
+ __builtin_abort ();
+
+ /* STRNCMP. */
+ if (__builtin_strncmp ("hello", "aaaaa", 0) != 0)
+ __builtin_abort ();
+ if (__builtin_strncmp ("aaaaa", "aaaaa", 100) != 0)
+ __builtin_abort ();
+ if (__builtin_strncmp ("aaaaa", "", 100) <= 0)
+ __builtin_abort ();
+ if (__builtin_strncmp ("", "aaaaa", 100) >= 0)
+ __builtin_abort ();
+ if (__builtin_strncmp ("ab", "ba", 1) >= 0)
+ __builtin_abort ();
+
+ /* STRNCASECMP. */
+ if (__builtin_strncasecmp ("hello", "aaaaa", 0) != 0)
+ __builtin_abort ();
+ if (__builtin_strncasecmp ("aaaaa", "aaaaa", 100) != 0)
+ __builtin_abort ();
+ if (__builtin_strncasecmp ("aaaaa", "", 100) <= 0)
+ __builtin_abort ();
+ if (__builtin_strncasecmp ("", "aaaaa", 100) >= 0)
+ __builtin_abort ();
+}
+
+/* { dg-final { scan-tree-dump-not "__builtin_memchr" "optimized" } } */
+/* { dg-final { scan-tree-dump-not "__builtin_strncmp" "optimized" } } */
+/* { dg-final { scan-tree-dump-not "__builtin_strncasecmp" "optimized" } } */
+/* { dg-final { scan-tree-dump-not "__builtin_abort" "optimized" } } */
--
2.9.2
