perldelta for 23695c073f41

[perl5.git] / pp_hot.c

diff --git a/pp_hot.c b/pp_hot.c
index d7fa3d2..223169b 100644 (file)
--- a/pp_hot.c
+++ b/pp_hot.c
@@ -284,8 +284,11 @@ PP(pp_concat)
     }
     else { /* $l .= $r   and   left == TARG */
        if (!SvOK(left)) {
-           if (left == right && ckWARN(WARN_UNINITIALIZED)) /* $l .= $l */
-               report_uninit(right);
+            if ((left == right                          /* $l .= $l */
+                 || (PL_op->op_private & OPpTARGET_MY)) /* $l = $l . $r */
+                && ckWARN(WARN_UNINITIALIZED)
+                )
+                report_uninit(left);
            sv_setpvs(left, "");
        }
         else {
@@ -3623,6 +3626,8 @@ Perl_leave_adjust_stacks(pTHX_ SV **from_sp, SV **to_sp, U8 gimme, int pass)
 }
 
 
+/* also tail-called by pp_return */
+
 PP(pp_leavesub)
 {
     U8 gimme;