pr65947-14.c: New testcase.

2017-06-22  Richard Biener  <rguenther@suse.de>

	* gcc.dg/vect/pr65947-14.c: New testcase.

From-SVN: r249500

diff --git a/gcc/testsuite/ChangeLog b/gcc/testsuite/ChangeLog
index fa14c61eed5509382785194e58b995deb944e5df..907e1769106a03d4215280bffb205d2c77d44ced 100644 (file)
--- a/gcc/testsuite/ChangeLog
+++ b/gcc/testsuite/ChangeLog
@@ -1,3 +1,7 @@
+2017-06-22  Richard Biener  <rguenther@suse.de>
+
+       * gcc.dg/vect/pr65947-14.c: New testcase.
+
 2017-06-21  Michael Meissner  <meissner@linux.vnet.ibm.com>
 
        PR target/80510

diff --git a/gcc/testsuite/gcc.dg/vect/pr65947-14.c b/gcc/testsuite/gcc.dg/vect/pr65947-14.c
new file mode 100644 (file)
index 0000000..2b15707
--- /dev/null
+++ b/gcc/testsuite/gcc.dg/vect/pr65947-14.c
@@ -0,0 +1,44 @@
+/* { dg-require-effective-target vect_condition } */
+
+#include "tree-vect.h"
+
+extern void abort (void) __attribute__ ((noreturn));
+
+#define N 27
+
+/* Condition reduction with matches only in even lanes at runtime.  */
+
+int
+condition_reduction (int *a, int min_v)
+{
+  int last = N + 96;
+
+  for (int i = 0; i < N; i++)
+    if (a[i] > min_v)
+      last = i;
+
+  return last;
+}
+
+int
+main (void)
+{
+  int a[N] = {
+  47, 12, 13, 14, 15, 16, 17, 18, 19, 20,
+  1, 2, 3, 4, 5, 6, 7, 8, 9, 10,
+  21, 22, 23, 24, 25, 26, 27
+  };
+
+  check_vect ();
+
+  int ret = condition_reduction (a, 46);
+
+  /* loop should have found a value of 0, not default N + 96.  */
+  if (ret != 0)
+    abort ();
+
+  return 0;
+}
+
+/* { dg-final { scan-tree-dump-times "LOOP VECTORIZED" 2 "vect" { xfail { ! vect_max_reduc } } } */
+/* { dg-final { scan-tree-dump-times "condition expression based on integer induction." 4 "vect" } } */