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authorBen Cheng <bccheng@google.com>2014-03-25 22:37:19 -0700
committerBen Cheng <bccheng@google.com>2014-03-25 22:37:19 -0700
commit1bc5aee63eb72b341f506ad058502cd0361f0d10 (patch)
treec607e8252f3405424ff15bc2d00aa38dadbb2518 /gcc-4.9/gcc/testsuite/gcc.dg/tree-ssa/pr21582.c
parent283a0bf58fcf333c58a2a92c3ebbc41fb9eb1fdb (diff)
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Initial checkin of GCC 4.9.0 from trunk (r208799).
Change-Id: I48a3c08bb98542aa215912a75f03c0890e497dba
Diffstat (limited to 'gcc-4.9/gcc/testsuite/gcc.dg/tree-ssa/pr21582.c')
-rw-r--r--gcc-4.9/gcc/testsuite/gcc.dg/tree-ssa/pr21582.c28
1 files changed, 28 insertions, 0 deletions
diff --git a/gcc-4.9/gcc/testsuite/gcc.dg/tree-ssa/pr21582.c b/gcc-4.9/gcc/testsuite/gcc.dg/tree-ssa/pr21582.c
new file mode 100644
index 000000000..0f5dc9ec1
--- /dev/null
+++ b/gcc-4.9/gcc/testsuite/gcc.dg/tree-ssa/pr21582.c
@@ -0,0 +1,28 @@
+/* { dg-do link } */
+/* { dg-options "-O2 -fdump-tree-vrp1" } */
+
+static inline void do_thing(char *s, int *p, char *q)
+{
+ /* This should be folded away. */
+ if (s == 0 || q == 0)
+ link_error ();
+
+ /* This should not be folded as 'p' is not marked nonnull. */
+ if (p)
+ *p = 3;
+}
+
+void __attribute__((nonnull (1, 3))) do_other_thing(char *s, int *p, char *q)
+{
+ do_thing(s, p, q);
+}
+
+int i;
+
+main()
+{
+ do_other_thing ("xxx", &i, "yyy");
+}
+
+/* { dg-final { scan-tree-dump-times "Folding predicate p_.*" 0 "vrp1" } } */
+/* { dg-final { cleanup-tree-dump "vrp1" } } */