testsuite: Add a vect_partial_vectors_usage_2 guard

We don't need an epilogue loop if the main loop can operate on
partial vectors, so this patch disables an associated test.
The alternative would be to force partial-vectors-usage=1
on the command line.

gcc/testsuite/
	* gcc.dg/vect/vect-epilogues.c: XFAIL test for epilogue loop
	vectorization if vect_partial_vectors_usage_2.

diff --git a/gcc/testsuite/gcc.dg/vect/vect-epilogues.c b/gcc/testsuite/gcc.dg/vect/vect-epilogues.c
index a146bb6518a0deb43853c1525789c855a87948ff..ab7e8a1a75991545205069a3134250009befdd0c 100644 (file)
--- a/gcc/testsuite/gcc.dg/vect/vect-epilogues.c
+++ b/gcc/testsuite/gcc.dg/vect/vect-epilogues.c
@@ -16,4 +16,4 @@ void pixel_avg( unsigned char *dst, int i_dst_stride,
      }
  }
 
-/* { dg-final { scan-tree-dump "LOOP EPILOGUE VECTORIZED" "vect" { target vect_multiple_sizes xfail { arm32 && be } } } }  */
+/* { dg-final { scan-tree-dump "LOOP EPILOGUE VECTORIZED" "vect" { target vect_multiple_sizes xfail { { arm32 && be } || vect_partial_vectors_usage_2 } } } } */