From: Alan Lawrence <alan.lawrence@arm.com>
Date: Mon, 22 Sep 2014 16:36:06 +0000 (+0000)
Subject: [Testsuite] Add tests of reductions using whole-vector-shifts (ior)
X-Git-Tag: releases/gcc-5.1.0~4502
X-Git-Url: http://git.ipfire.org/?a=commitdiff_plain;h=69e69c01e715cf576c55d03214cd1f85d7e9c598;p=thirdparty%2Fgcc.git

[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
---

diff --git a/gcc/testsuite/ChangeLog b/gcc/testsuite/ChangeLog
index 92efa6efddd9..efbb084ddb7c 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 000000000000..4e1a8577ce21
--- /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 000000000000..e25467e59221
--- /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" } } */
+