re PR tree-optimization/80334 (Segfault when taking address of copy of unaligned struct)

2017-04-07  Richard Biener  <rguenther@suse.de>

	PR tree-optimization/80334
	* g++.dg/torture/pr80334.C: Use __BIGGEST_ALIGNMENT__ for
	alignas on stack.

From-SVN: r246757

gcc/testsuite/ChangeLog

 2017-04-07  Richard Biener  <rguenther@suse.de>
 
+	PR tree-optimization/80334
+	* g++.dg/torture/pr80334.C: Use __BIGGEST_ALIGNMENT__ for
+	alignas on stack.
+
+2017-04-07  Richard Biener  <rguenther@suse.de>
+
 	PR middle-end/80341
 	* gcc.dg/torture/pr80341.c: New testcase.
 

gcc/testsuite/g++.dg/torture/pr80334.C

@@ -8,7 +8,7 @@ char x;
 int
 main()
 {
-  alignas(16) B b[3];
+  alignas(__BIGGEST_ALIGNMENT__) B b[3];
   for (int i = 0; i < 3; i++) b[i].unpacked.c = 'a' + i;
   for (int i = 0; i < 3; i++)
     {