stringify "\x{FFF}" to utf8 correctly; set SvUTF8 on "\x{XX}"

only when XX > 127

p4raw-id: //depot/perl@5033

1 files changed, 2 insertions, 0 deletions

diff --git a/pp_hot.c b/pp_hot.c
index 6ef302c117..8dab65150c 100644
--- a/pp_hot.c
+++ b/pp_hot.c
@@ -87,6 +87,8 @@ PP(pp_stringify)
     char *s;
     s = SvPV(TOPs,len);
     sv_setpvn(TARG,s,len);
+    if (SvUTF8(TOPs) && !IN_BYTE)
+	SvUTF8_on(TARG);
     SETTARG;
     RETURN;
 }