From 7274f5c177d49660ed8c06998da402a09f5f31c6 Mon Sep 17 00:00:00 2001
From: Jan Edmund Lazo <jan.lazo@mail.utoronto.ca>
Date: Sat, 16 Nov 2019 12:31:46 -0500
Subject: vim-patch:8.1.1922: in diff mode global operations can be very slow

Problem:    In diff mode global operations can be very slow.
Solution:   Do not call diff_redraw() many times, call it once when redrawing.
            And also don't update folds multiple times.
https://github.com/vim/vim/commit/4f57eefe1e84b5a90e08474092ea6fc8825ad5c9
---
 src/nvim/screen.c | 5 +++++
 1 file changed, 5 insertions(+)

(limited to 'src/nvim/screen.c')

diff --git a/src/nvim/screen.c b/src/nvim/screen.c
index 1ce0b5217e..7b9601a5a6 100644
--- a/src/nvim/screen.c
+++ b/src/nvim/screen.c
@@ -286,6 +286,11 @@ int update_screen(int type)
     return FAIL;
   }
 
+  // May have postponed updating diffs.
+  if (need_diff_redraw) {
+    diff_redraw(true);
+  }
+
   if (must_redraw) {
     if (type < must_redraw)         /* use maximal type */
       type = must_redraw;
-- 
cgit