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-rw-r--r--gcc-4.4.0/gcc/testsuite/gcc.dg/tree-ssa/pr40087.c30
1 files changed, 30 insertions, 0 deletions
diff --git a/gcc-4.4.0/gcc/testsuite/gcc.dg/tree-ssa/pr40087.c b/gcc-4.4.0/gcc/testsuite/gcc.dg/tree-ssa/pr40087.c
new file mode 100644
index 000000000..22e2b629e
--- /dev/null
+++ b/gcc-4.4.0/gcc/testsuite/gcc.dg/tree-ssa/pr40087.c
@@ -0,0 +1,30 @@
+/* { dg-do run } */
+/* { dg-options "-O1 " } */
+
+extern void abort (void);
+
+static void __attribute__((always_inline))
+reverse(int *first, int *last)
+{
+ if (first == last--)
+ return;
+ while (first != last)
+ {
+ int t = *first;
+ *first = *last;
+ *last = t;
+ if (++first == last--)
+ break;
+ }
+}
+
+int main()
+{
+ int seq[] = { 1, 2, 3, 4, 5, 6, 7, 8 };
+
+ reverse(seq, seq + 8);
+ if (seq[3] != 5 || seq[4] != 4)
+ abort ();
+
+ return 0;
+}