rs6000: Fix testsuite bug in check_ppc_float128_hw_available

The test program for ppc_float128_hw_available would always return
false, since there is a syntax error in that test program.


gcc/testsuite/
	* lib/target-supports.exp (check_ppc_float128_hw_available): Fix
	syntax error.

From-SVN: r262755

gcc/testsuite/ChangeLog

+2018-07-16  Segher Boessenkool  <segher@kernel.crashing.org>
+
+	* lib/target-supports.exp (check_ppc_float128_hw_available): Fix
+	syntax error.
+
 2018-07-16  Jakub Jelinek  <jakub@redhat.com>
 
 	PR tree-optimization/86526

gcc/testsuite/lib/target-supports.exp

@@ -2182,7 +2182,7 @@ proc check_ppc_float128_hw_available { } {
 		    __float128 w = -1.0q;
 
 		    __asm__ ("xsaddqp %0,%1,%2" : "+v" (w) : "v" (x), "v" (y));
-		    return ((z != 3.0q) || (z != w);
+		    return ((z != 3.0q) || (z != w));
 		}
 	    } $options
 	}