re PR tree-optimization/90883 (Generated code is worse if returned struct is unnamed)

	PR tree-optimization/90883
	* g++.dg/tree-ssa/pr90883.c: Add -Os.  Check dse2 for the
	deleted store on some targets.

From-SVN: r272949

gcc/testsuite/ChangeLog

+2019-07-02  Jeff Law  <law@redhat.com>
+
+	PR tree-optimization/90883
+	* g++.dg/tree-ssa/pr90883.c: Add -Os.  Check dse2 for the
+	deleted store on some targets.
+
 2019-07-02  qing zhao  <qing.zhao@oracle.com>
 
 	PR preprocessor/90581

gcc/testsuite/g++.dg/tree-ssa/pr90883.C

-// { dg-options "-O2 -fdump-tree-dse1-details -std=c++11" }
+// { dg-options "-O2 -Os -fdump-tree-dse-details -std=c++11" }
 
 
     class C
@@ -15,5 +15,6 @@
 
 // We want to match enough here to capture that we deleted an empty
 // constructor store
-// { dg-final { scan-tree-dump "Deleted redundant store: .*\.a = {}" "dse1" } }
+// { dg-final { scan-tree-dump "Deleted redundant store: .*\.a = {}" "dse1" { target { ! i?86-*-* } } } }
+// { dg-final { scan-tree-dump "Deleted redundant store: .*\.a = {}" "dse2" { target i?86-*-* } } }