From 69e69c01e715cf576c55d03214cd1f85d7e9c598 Mon Sep 17 00:00:00 2001
From: Alan Lawrence <alan.lawrence@arm.com>
Date: Mon, 22 Sep 2014 16:36:06 +0000
Subject: [PATCH] [Testsuite] Add tests of reductions using whole-vector-shifts
 (ior)

	* gcc.dg/vect/vect-reduc-or_1.c: New test.
	* gcc.dg/vect/vect-reduc-or_2.c: New test.

From-SVN: r215475
---
 gcc/testsuite/ChangeLog                     |  5 +++
 gcc/testsuite/gcc.dg/vect/vect-reduc-or_1.c | 35 +++++++++++++++++++++
 gcc/testsuite/gcc.dg/vect/vect-reduc-or_2.c | 31 ++++++++++++++++++
 3 files changed, 71 insertions(+)
 create mode 100644 gcc/testsuite/gcc.dg/vect/vect-reduc-or_1.c
 create mode 100644 gcc/testsuite/gcc.dg/vect/vect-reduc-or_2.c

diff --git a/gcc/testsuite/ChangeLog b/gcc/testsuite/ChangeLog
index 92efa6efddd..efbb084ddb7 100644
--- a/gcc/testsuite/ChangeLog
+++ b/gcc/testsuite/ChangeLog
@@ -1,3 +1,8 @@
+2014-09-22  Alan Lawrence  <alan.lawrence@arm.com>
+
+	* gcc.dg/vect/vect-reduc-or_1.c: New test.
+	* gcc.dg/vect/vect-reduc-or_2.c: Likewise.
+
 2014-09-22  Alan Lawrence  <alan.lawrence@arm.com>
 
 	* lib/target-supports.exp (check_effective_target_whole_vector_shift):
diff --git a/gcc/testsuite/gcc.dg/vect/vect-reduc-or_1.c b/gcc/testsuite/gcc.dg/vect/vect-reduc-or_1.c
new file mode 100644
index 00000000000..4e1a8577ce2
--- /dev/null
+++ b/gcc/testsuite/gcc.dg/vect/vect-reduc-or_1.c
@@ -0,0 +1,35 @@
+/* { dg-require-effective-target whole_vector_shift } */
+
+/* Write a reduction loop to be reduced using vector shifts.  */
+
+extern void abort(void);
+
+unsigned char in[16] __attribute__((__aligned__(16)));
+
+int
+main (unsigned char argc, char **argv)
+{
+  unsigned char i = 0;
+  unsigned char sum = 1;
+
+  for (i = 0; i < 16; i++)
+    in[i] = (i + i + 1) & 0xfd;
+
+  /* Prevent constant propagation of the entire loop below.  */
+  asm volatile ("" : : : "memory");
+
+  for (i = 0; i < 16; i++)
+    sum |= in[i];
+
+  if (sum != 29)
+    {
+      __builtin_printf("Failed %d\n", sum);
+      abort();
+    }
+
+  return 0;
+}
+
+/* { dg-final { scan-tree-dump "Reduce using vector shifts" "vect" } } */
+/* { dg-final { cleanup-tree-dump "vect" } } */
+
diff --git a/gcc/testsuite/gcc.dg/vect/vect-reduc-or_2.c b/gcc/testsuite/gcc.dg/vect/vect-reduc-or_2.c
new file mode 100644
index 00000000000..e25467e5922
--- /dev/null
+++ b/gcc/testsuite/gcc.dg/vect/vect-reduc-or_2.c
@@ -0,0 +1,31 @@
+/* { dg-require-effective-target whole_vector_shift } */
+
+/* Write a reduction loop to be reduced using vector shifts and folded.  */
+
+extern void abort(void);
+
+int
+main (unsigned char argc, char **argv)
+{
+  unsigned char in[16] __attribute__((aligned(16)));
+  unsigned char i = 0;
+  unsigned char sum = 1;
+
+  for (i = 0; i < 16; i++)
+    in[i] = (i + i + 1) & 0xfd;
+
+  for (i = 0; i < 16; i++)
+    sum |= in[i];
+
+  if (sum != 29)
+    {
+      __builtin_printf("Failed %d\n", sum);
+      abort();
+    }
+
+  return 0;
+}
+
+/* { dg-final { scan-tree-dump "Reduce using vector shifts" "vect" } } */
+/* { dg-final { cleanup-tree-dump "vect" } } */
+
-- 
2.30.2