1 files changed, 25 insertions, 0 deletions
diff --git a/gcc/testsuite/gcc.dg/tree-ssa/ivopt_infer_2.c b/gcc/testsuite/gcc.dg/tree-ssa/ivopt_infer_2.c
new file mode 100644
index 000000000..4b7e197dd
--- /dev/null
+++ b/gcc/testsuite/gcc.dg/tree-ssa/ivopt_infer_2.c
@@ -0,0 +1,25 @@
+/* { dg-do compile { target {{ i?86-*-* x86_64-*-* } && lp64 } } } */
+/* { dg-options "-O2 -m64 -fdump-tree-ivopts-details" } */
+
+#ifndef TYPE
+#define TYPE char*
+#endif
+
+extern int a[];
+
+/* Can not infer loop iteration from array -- exit test can not be replaced.  */
+void foo (int i_width, TYPE dst, TYPE src1, TYPE src2)
+{
+      TYPE dstn= dst + i_width;
+      TYPE dst0 = dst;
+      unsigned long long i = 0;
+       for( ; dst <= dstn; )
+       {
+           dst0[i] = ( src1[i] + src2[i] + 1 +a[i]) >> 1;
+           dst++;
+	   i += 16;
+       }
+}
+
+/* { dg-final { scan-tree-dump-times "Replacing" 0 "ivopts"} } */
+/* { dg-final { cleanup-tree-dump "ivopts" } } */