From 372bcceeee8012ef3fb2f3dbc8132c3a33cb84fc Mon Sep 17 00:00:00 2001
From: LemonBoy <thatlemon@gmail.com>
Date: Mon, 25 Apr 2022 12:43:20 +0100
Subject: patch 8.2.4823: concat more than 2 strings in :def function is
 inefficient

Problem:    Concatenating more than 2 strings in a :def function is
            inefficient.
Solution:   Add a count to the CONCAT instruction. (closes #10276)
---
 src/vim9cmds.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

(limited to 'src/vim9cmds.c')

diff --git a/src/vim9cmds.c b/src/vim9cmds.c
index a853d9b0b..ad32c32ff 100644
--- a/src/vim9cmds.c
+++ b/src/vim9cmds.c
@@ -2125,7 +2125,7 @@ compile_redir(char_u *line, exarg_T *eap, cctx_T *cctx)
 	    generate_instr_type(cctx, ISN_REDIREND, &t_string);
 
 	    if (lhs->lhs_append)
-		generate_instr_drop(cctx, ISN_CONCAT, 1);
+		generate_CONCAT(cctx, 2);
 
 	    if (lhs->lhs_has_index)
 	    {
-- 
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