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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.c-torture/execute/pr34456.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.c-torture/execute/pr34456.c')
-rw-r--r--gcc-4.9/gcc/testsuite/gcc.c-torture/execute/pr34456.c30
1 files changed, 30 insertions, 0 deletions
diff --git a/gcc-4.9/gcc/testsuite/gcc.c-torture/execute/pr34456.c b/gcc-4.9/gcc/testsuite/gcc.c-torture/execute/pr34456.c
new file mode 100644
index 000000000..526c954e5
--- /dev/null
+++ b/gcc-4.9/gcc/testsuite/gcc.c-torture/execute/pr34456.c
@@ -0,0 +1,30 @@
+#include <stdlib.h>
+
+int __attribute__ ((noinline)) debug (void) { return 1; }
+int errors;
+
+struct s { int elt; int (*compare) (int); };
+
+static int
+compare (const void *x, const void *y)
+{
+ const struct s *s1 = x, *s2 = y;
+ int (*compare1) (int);
+ int elt2;
+
+ compare1 = s1->compare;
+ elt2 = s2->elt;
+ if (elt2 != 0 && debug () && compare1 (s1->elt) != 0)
+ errors++;
+ return compare1 (elt2);
+}
+
+int bad_compare (int x) { return -x; }
+struct s array[2] = { { 1, bad_compare }, { -1, bad_compare } };
+
+int
+main (void)
+{
+ qsort (array, 2, sizeof (struct s), compare);
+ return errors == 0;
+}