rs6000: fix power10_hw test

The code snippet for this test was returning 1 if power10
instructions executed correctly. It should return 0 if the
test passes.

	2020-07-07  Aaron Sawdey  <acsawdey@linux.ibm.com>

gcc/testsuite/
	* lib/target-supports.exp (check_power10_hw_available):
	Return 0 for passing test.

(cherry picked from commit 7126583af5d29235584b51b3b05eeaba2adef024)

diff --git a/gcc/testsuite/lib/target-supports.exp b/gcc/testsuite/lib/target-supports.exp
index ce7908be07323fc777c2e47dd75d60ba2df2d919..7b962d3cd3ebdd1cd789d093c65f877ccf5d42ef 100644 (file)
--- a/gcc/testsuite/lib/target-supports.exp
+++ b/gcc/testsuite/lib/target-supports.exp
@@ -2227,7 +2227,9 @@ proc check_power10_hw_available { } {
                /* Set e first and use +r to check if pli actually works.  */
                long e = -1;
                asm ("pli %0,%1" : "+r" (e) : "n" (0x12345));
-               return (e == 0x12345);
+               if (e == 0x12345)
+                 return 0;
+               return 1;
            }
        } "-mcpu=power10"
     }]