[gcc] GCC 4.5.0=>4.5.1

gcc/gcc/testsuite/gcc.dg/vect/no-vfa-vect-43.c

Index: gcc/gcc/testsuite/gcc.dg/vect/no-vfa-vect-43.c
diff --git a/gcc/gcc/testsuite/gcc.dg/vect/no-vfa-vect-43.c b/gcc/gcc/testsuite/gcc.dg/vect/no-vfa-vect-43.c
index b64427f6d0b229fa7f97f8dde0a7f106828f0b82..16a01d1a32066b7d9ff9a2c7c1da5ac7f860c00c 100644
--- a/gcc/gcc/testsuite/gcc.dg/vect/no-vfa-vect-43.c
+++ b/gcc/gcc/testsuite/gcc.dg/vect/no-vfa-vect-43.c
@@ -22,40 +22,53 @@ void bar (float *pa, float *pb, float *pc)
 
 
 __attribute__ ((noinline)) int
-main1 (float *pa)
+main1 (float *pa, float *pb, float *pc)
 {
   int i;
-  float pb[N] __attribute__ ((__aligned__(16))) = {0,3,6,9,12,15,18,21,24,27,30,33,36,39,42,45,48,51,54,57};
-  float pc[N] __attribute__ ((__aligned__(16))) = {0,1,2,3,4,5,6,7,8,9,10,11,12,13,14,15,16,17,18,19};
+  float b[N] __attribute__ ((__aligned__(__BIGGEST_ALIGNMENT__)));
+  float c[N] __attribute__ ((__aligned__(__BIGGEST_ALIGNMENT__)));
 
- /* Not vectorizable: pa may alias pb and/or pc, since their addresses escape.  */
   for (i = 0; i < N; i++)
     {
-      pa[i] = pb[i] * pc[i];
+      b[i] = pb[i];
+      c[i] = pc[i];
     }
 
-  bar (pa,pb,pc);
+  /* Vectorizable: pa may not alias pb and/or pc, even though their
+     addresses escape.  &pa would need to escape to point to escaped memory.  */
+  for (i = 0; i < N; i++)
+    {
+      pa[i] = b[i] * c[i];
+    }
+
+  bar (pa,b,c);
 
   return 0;
 }
 
 __attribute__ ((noinline)) int
-main2 (float * pa)
+main2 (float *pa, float *pb, float *pc)
 {
   int i;
-  float pb[N] = {0,3,6,9,12,15,18,21,24,27,30,33,36,39,42,45,48,51,54,57};
-  float pc[N] = {0,1,2,3,4,5,6,7,8,9,10,11,12,13,14,15,16,17,18,19};
+  float b[N] __attribute__ ((__aligned__(__BIGGEST_ALIGNMENT__)));
+  float c[N] __attribute__ ((__aligned__(__BIGGEST_ALIGNMENT__)));
+
+  for (i = 0; i < N; i++)
+    {
+      b[i] = pb[i];
+      c[i] = pc[i];
+    }
 
   /* Vectorizable: pb and pc addresses do not escape.  */
   for (i = 0; i < N; i++)
     {
-      pa[i] = pb[i] * pc[i];
+      pa[i] = b[i] * c[i];
     }   
   
   /* check results:  */
   for (i = 0; i < N; i++)
     {
-      if (pa[i] != (pb[i] * pc[i]))
+      if (pa[i] != (b[i] * c[i]))
         abort ();
     }
   
@@ -65,15 +78,17 @@ main2 (float * pa)
 int main (void)
 {
   int i;
-  float a[N] __attribute__ ((__aligned__(16)));
+  float a[N] __attribute__ ((__aligned__(__BIGGEST_ALIGNMENT__)));
+  float b[N] = {0,3,6,9,12,15,18,21,24,27,30,33,36,39,42,45,48,51,54,57};
+  float c[N] = {0,1,2,3,4,5,6,7,8,9,10,11,12,13,14,15,16,17,18,19};
 
   check_vect ();
 
-  main1 (a);
-  main2 (a);
+  main1 (a,b,c);
+  main2 (a,b,c);
   return 0;
 }
 
-/* { dg-final { scan-tree-dump-times "vectorized 1 loops" 1 "vect" } } */
-/*  { dg-final { scan-tree-dump-times "Alignment of access forced using versioning" 1 "vect" { target vect_no_align } } } */
+/* { dg-final { scan-tree-dump-times "vectorized 2 loops" 2 "vect" } } */
+/* { dg-final { scan-tree-dump-times "Alignment of access forced using versioning" 6 "vect" { target vect_no_align } } } */
 /* { dg-final { cleanup-tree-dump "vect" } } */