re PR target/83399 (Power8 ICE During LRA with 2-op rtl pattern for lvx instruction)

	PR target/83399
	* gcc.target/powerpc/pr83399.c: Only run on Linux.

From-SVN: r258071

gcc/testsuite/ChangeLog

+2018-02-28  Peter Bergner  <bergner@vnet.ibm.com>
+
+	PR target/83399
+	* gcc.target/powerpc/pr83399.c: Only run on Linux.
+
 2018-02-28  Richard Biener  <rguenther@suse.de>
 
 	PR tree-optimization/84584

gcc/testsuite/gcc.target/powerpc/pr83399.c

 /* PR target/83399 */
-/* { dg-do compile } */
+/* { dg-do compile { target { powerpc*-*-linux* } } } */
 /* { dg-require-effective-target powerpc_vsx_ok } */
 /* { dg-options "-O1 -mabi=elfv2 -mlittle -mvsx" } */