make callers of SvTRUE() more efficient

Where its obvious that the args can't be null, use SvTRUE_NN() instead.
Avoid possible multiple evaluations of the arg by assigning to a local var
first if necessary.

1 files changed, 1 insertions, 1 deletions

diff --git a/pp_sys.c b/pp_sys.c
index e6ed385d65..c8e7a9f531 100644
--- a/pp_sys.c
+++ b/pp_sys.c
@@ -3293,7 +3293,7 @@ PP(pp_ftis)
 	    break;
 	}
 	SvSETMAGIC(TARG);
-	return SvTRUE_nomg(TARG)
+	return SvTRUE_nomg_NN(TARG)
             ? S_ft_return_true(aTHX_ TARG) : S_ft_return_false(aTHX_ TARG);
     }
 }