From 1bc5aee63eb72b341f506ad058502cd0361f0d10 Mon Sep 17 00:00:00 2001
From: Ben Cheng <bccheng@google.com>
Date: Tue, 25 Mar 2014 22:37:19 -0700
Subject: Initial checkin of GCC 4.9.0 from trunk (r208799).

Change-Id: I48a3c08bb98542aa215912a75f03c0890e497dba
---
 gcc-4.9/gcc/testsuite/gcc.dg/autopar/reduc-8.c | 90 ++++++++++++++++++++++++++
 1 file changed, 90 insertions(+)
 create mode 100644 gcc-4.9/gcc/testsuite/gcc.dg/autopar/reduc-8.c

(limited to 'gcc-4.9/gcc/testsuite/gcc.dg/autopar/reduc-8.c')

diff --git a/gcc-4.9/gcc/testsuite/gcc.dg/autopar/reduc-8.c b/gcc-4.9/gcc/testsuite/gcc.dg/autopar/reduc-8.c
new file mode 100644
index 000000000..4a416df23
--- /dev/null
+++ b/gcc-4.9/gcc/testsuite/gcc.dg/autopar/reduc-8.c
@@ -0,0 +1,90 @@
+/* { dg-do compile } */
+/* { dg-options "-O2 -ftree-parallelize-loops=4 -fdump-tree-parloops-details -fdump-tree-optimized" } */
+
+#include <stdlib.h>
+
+#define N 3200
+
+extern void abort (void);
+typedef signed char T;
+
+__attribute__ ((noinline)) void
+testmax (const T *c, T init, T result)
+{
+  T lc[N], accum = init;
+  int i;
+
+  __builtin_memcpy (lc, c, sizeof(lc));
+
+  for (i = 0; i < N; i++) {
+    accum = accum < lc[i] ? lc[i] : accum;
+  }
+
+  if (accum != result)
+    abort ();
+}
+
+__attribute__ ((noinline)) void
+testmin (const T *c, T init, T result)
+{
+  T lc[N], accum = init;
+  int i;
+
+  __builtin_memcpy (lc, c, sizeof(lc));
+
+  for (i = 0; i < N; i++) {
+    accum = accum > lc[i] ? lc[i] : accum;
+  }
+
+  if (accum != result)
+    abort ();
+}
+
+int main (void)
+{ 
+  static signed char A[N] = {
+    0x01, 0x02, 0x03, 0x04, 0x05, 0x06, 0x07, 0x08,
+    0x09, 0x0a, 0x0b, 0x0c, 0x0d, 0x0e, 0x0f, 0x10,
+    0x70, 0x71, 0x72, 0x73, 0x74, 0x75, 0x76, 0x77,
+    0x78, 0x79, 0x7a, 0x7b, 0x7c, 0x7d, 0x7e, 0x7f
+  };
+
+  static signed char B[N] = {
+    0x70, 0x71, 0x72, 0x73, 0x74, 0x75, 0x76, 0x77,
+    0x78, 0x79, 0x7a, 0x7b, 0x7c, 0x7d, 0x7e, 0x7f,
+    0x80, 0x81, 0x82, 0x83, 0x84, 0x85, 0x86, 0x87,
+    0x88, 0x89, 0x8a, 0x8b, 0x8c, 0x8d, 0x8e, 0x8f
+  };
+
+  static signed char C[N] = {
+    0xff, 0xfe, 0xfd, 0xfc, 0xfb, 0xfa, 0xf9, 0xf8,
+    0x09, 0x0a, 0x0b, 0x0c, 0x0d, 0x0e, 0x0f, 0x10,
+    0x80, 0x81, 0x82, 0x83, 0x84, 0x85, 0x86, 0x87,
+    0x70, 0x71, 0x72, 0x73, 0x74, 0x75, 0x76, 0x77,
+  };
+
+  int i;
+
+  for (i=32; i<N; i++)
+    {
+      A[i]= 0x01;
+      B[i]= 0x70;
+      C[i]= 0xff;
+    }
+
+  testmin (A, 0, 0);
+  testmin (B, 0, 0x80);
+  testmin (C, 0, 0x80);
+
+  testmax (A, 0, 0x7f);
+  testmax (B, 0, 0x7f);
+  testmax (C, 0, 0x77);
+
+  return 0;
+}
+
+
+/* { dg-final { scan-tree-dump-times "Detected reduction" 2 "parloops" } } */
+/* { dg-final { scan-tree-dump-times "SUCCESS: may be parallelized" 3 "parloops" } } */
+/* { dg-final { cleanup-tree-dump "parloops" } } */
+/* { dg-final { cleanup-tree-dump "optimized" } } */
-- 
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