Compile g++.dg/opt/pr52727.C with -march=i686 for ia32

	* g++.dg/opt/pr52727.C: Compile with -march=i686 for ia32.

From-SVN: r207730

gcc/testsuite/ChangeLog

+2014-02-12  H.J. Lu  <hongjiu.lu@intel.com>
+
+	* g++.dg/opt/pr52727.C: Compile with -march=i686 for ia32.
+
 2014-02-12  Thomas Schwinge  <thomas@codesourcery.com>
 
 	* c-c++-common/raw-string-3.c: Fix typo in dg-error invocation.

gcc/testsuite/g++.dg/opt/pr52727.C

 // { dg-do compile }
 // { dg-options "-g -Os" }
+// { dg-additional-options "-march=i686" { target ia32 } }
 
 int grow (int);
 void fn (int);