* gcc.dg/vect/vect-105.c: Prevent compiler from hoisting abort

[pf3gnuchains/gcc-fork.git] / gcc / testsuite / gcc.dg / vect / vect-105.c

diff --git a/gcc/testsuite/gcc.dg/vect/vect-105.c b/gcc/testsuite/gcc.dg/vect/vect-105.c
index c8f8e5b..bbf42af 100644 (file)
--- a/gcc/testsuite/gcc.dg/vect/vect-105.c
+++ b/gcc/testsuite/gcc.dg/vect/vect-105.c
@@ -16,6 +16,9 @@ static int a[N][N] = {{1,2,3,11},{4,5,6,12},{7,8,9,13},{34,45,67,83}};
 static int b[N][N] = {{17,28,15,23},{0,2,3,24},{4,31,82,25},{29,31,432,256}};
 static int c[N][N] = {{1,2,3,11},{4,9,13,34},{45,67,83,13},{34,45,67,83}};
 
+volatile int y;
+
+__attribute__ ((noinline))
 int main1 (int x) {
   int i,j;
   struct extraction *p;
@@ -27,7 +30,9 @@ int main1 (int x) {
      {
        p->a[i][j] = a[i][j];
        p->b[i][j] = b[i][j];
-       if (x == 135)
+       /* Because Y is volatile, the compiler cannot move this check out
+         of the loop.  */
+       if (y)
         abort (); /* to avoid vectorization  */
      }
    }
@@ -61,6 +66,7 @@ int main (void)
 }
 
 /* { dg-final { scan-tree-dump-times "vectorized 1 loops" 1 "vect" } } */
+/*  { dg-final { scan-tree-dump-times "Alignment of access forced using versioning" 2 "vect" { target vect_no_align } } } */
 /* { dg-final { scan-tree-dump-times "possible dependence between data-refs" 0 "vect" } } */
 /* { dg-final { cleanup-tree-dump "vect" } } */