re PR tree-optimization/80928 (SLP vectorization does not handle induction in…

re PR tree-optimization/80928 (SLP vectorization does not handle induction in outer loop vectorization)

2017-06-07  Richard Biener  <rguenther@suse.de>

	PR tree-optimization/80928
	* gcc.dg/vect/slp-perm-8.c: Avoid vectorizing loop computing
	check_results.

From-SVN: r248948

gcc/testsuite/ChangeLog

+2017-06-07  Richard Biener  <rguenther@suse.de>
+
+	PR tree-optimization/80928
+	* gcc.dg/vect/slp-perm-8.c: Avoid vectorizing loop computing
+	check_results.
+
 2017-06-06  Nathan Sidwell  <nathan@acm.org>
 
 	* g++.dg/pr45330.C: Add inline namespace case.

gcc/testsuite/gcc.dg/vect/slp-perm-8.c

@@ -41,6 +41,7 @@ int main (int argc, const char* argv[])
       check_results[3*i] = 9 * i + 6;
       check_results[3*i+1] = 9 * i + 15;
       check_results[3*i+2] = 9 * i + 4;
+      __asm__ volatile ("" : : : "memory");
     }
 
   foo (input, output);