[committed] Run DImode atomic tests on ppc64

[Richard Henderson]

Committed as obvious.


r~

        * lib/target-supports.exp
        (check_effective_target_sync_long_long_runtime): True for
        check_effective_target_powerpc64.


diff --git a/gcc/testsuite/lib/target-supports.exp 
b/gcc/testsuite/lib/target-supports.exp
index 1a25324..b93dc5c 100644
--- a/gcc/testsuite/lib/target-supports.exp
+++ b/gcc/testsuite/lib/target-supports.exp
@@ -3795,6 +3795,8 @@ proc check_effective_target_sync_long_long_runtime { } {
                 && [check_effective_target_lp64]
                 && [check_effective_target_ultrasparc_hw]) } {
        return 1
+    } elseif { [check_effective_target_powerpc64] } {
+       return 1
     } else {
        return 0
     }