1 files changed, 72 insertions, 0 deletions
diff --git a/gcc/testsuite/gcc.dg/vect/vect-44.c b/gcc/testsuite/gcc.dg/vect/vect-44.c
new file mode 100644
index 000000000..ef1a4635b
--- /dev/null
+++ b/gcc/testsuite/gcc.dg/vect/vect-44.c
@@ -0,0 +1,72 @@
+/* { 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; i++)
+    {
+      if (pa[i] != (pb[i] * pc[i]))
+	abort ();
+    }
+
+  return;
+}
+
+/* Unaligned pointer accesses, with unknown alignment.
+   The loop bound is known and divisible by the vectorization factor.
+   No aliasing problems.
+   vect-50.c is similar to this one with one difference:
+        the loop bound is unknown.
+   vect-45.c is similar to this one with one difference:
+        can't prove that pointers don't alias.  */
+
+__attribute__ ((noinline)) int
+main1 (float * __restrict__ pa, float * __restrict__ pb, float * __restrict__ pc)
+{
+  int i;
+
+  for (i = 0; i < N; i++)
+    {
+      pa[i] = pb[i] * pc[i];
+    }
+
+  bar (pa,pb,pc);
+
+  return 0;
+}
+
+int main (void)
+{
+  int i;
+  float a[N+4] __attribute__ ((__aligned__(__BIGGEST_ALIGNMENT__)));
+  float b[N+4] __attribute__ ((__aligned__(__BIGGEST_ALIGNMENT__))) = {0,3,6,9,12,15,18,21,24,27,30,33,36,39,42,45,48,51,54,57,60,63,66,69};
+  float c[N+4] __attribute__ ((__aligned__(__BIGGEST_ALIGNMENT__))) = {0,1,2,3,4,5,6,7,8,9,10,11,12,13,14,15,16,17,18,19,20,21,22,23};
+
+  check_vect ();
+
+  main1 (a,b,c);
+  main1 (&a[1],b,c);
+  main1 (a,&b[1],c);
+  main1 (&a[1],&b[1],&c[1]);
+
+  return 0;
+}
+
+/* For targets that don't support misaligned loads we version for the 
+   all three accesses (peeling to align the store will not force the
+   two loads to be aligned).  */
+
+/* { dg-final { scan-tree-dump-times "vectorized 1 loops" 1 "vect" } } */
+/* { dg-final { scan-tree-dump-times "Vectorizing an unaligned access" 2 "vect" { xfail { vect_no_align } } } } */
+/* { dg-final { scan-tree-dump-times "Alignment of access forced using peeling" 1 "vect" { xfail { vect_no_align || {! vector_alignment_reachable} } } } } */
+/* { dg-final { scan-tree-dump-times "Alignment of access forced using versioning." 3 "vect" { target vect_no_align } } } */
+/* { dg-final { scan-tree-dump-times "Alignment of access forced using versioning." 1 "vect" { target { {! vector_alignment_reachable} && {{! vect_no_align} && {! vect_hw_misalign} } } } } } */
+/* { dg-final { cleanup-tree-dump "vect" } } */