Initial checkin of GCC 4.9.0 from trunk (r208799).

Change-Id: I48a3c08bb98542aa215912a75f03c0890e497dba

1 files changed, 63 insertions, 0 deletions

diff --git a/gcc-4.9/gcc/testsuite/gcc.dg/vect/vect-58.c b/gcc-4.9/gcc/testsuite/gcc.dg/vect/vect-58.c
new file mode 100644
index 000000000..fa8c91b30
--- /dev/null
+++ b/gcc-4.9/gcc/testsuite/gcc.dg/vect/vect-58.c
@@ -0,0 +1,63 @@
+/* { dg-require-effective-target vect_float } */
+
+#include <stdarg.h>
+#include "tree-vect.h"
+
+#define N 256
+
+__attribute__ ((noinline))
+void bar (float *pa, float *pb, float *pc)
+{
+  int i;
+
+  /* check results:  */
+  for (i = 0; i < N/2; i++)
+    {
+      if (pa[i+1] != (pb[i+1] * pc[i+1]))
+	abort ();
+    }
+
+  return;
+}
+
+/* Unaligned pointer accesses, with a known alignment.
+   The loop bound is unknown.
+   No aliasing problems.
+   vect-54.c is similar to this one with one difference:
+        the loop bound is known.  */
+
+float a[N] __attribute__ ((__aligned__(__BIGGEST_ALIGNMENT__)));  float b[N] __attribute__ ((__aligned__(__BIGGEST_ALIGNMENT__))) = {0,3,6,9,12,15,18,21,24,27,30,33,36,39,42,45,48,51,54,57};  float c[N] __attribute__ ((__aligned__(__BIGGEST_ALIGNMENT__))) = {0,1,2,3,4,5,6,7,8,9,10,11,12,13,14,15,16,17,18,19};
+
+__attribute__ ((noinline)) int
+main1 (int n)
+{
+  int i;
+  float *pa = a;
+  float *pb = b;
+  float *pc = c;
+
+  for (i = 0; i < n/2; i++)
+    {
+      pa[i+1] = pb[i+1] * pc[i+1];
+    }
+
+  bar (a,b,c);
+
+  return 0;
+}
+
+int main (void)
+{
+  int i;
+  int n=N;
+
+  check_vect ();
+  main1 (n);
+
+  return 0;
+}
+
+/* { dg-final { scan-tree-dump-times "vectorized 1 loops" 1 "vect" } } */
+/* { dg-final { scan-tree-dump-times "Vectorizing an unaligned access" 0 "vect" } } */
+/* { dg-final { scan-tree-dump-times "Alignment of access forced using peeling" 1 "vect" } } */
+/* { dg-final { cleanup-tree-dump "vect" } } */