commit https://github.com/vim/vim/commit/77b642501ac4c84b4e6820d4e5636eb856faaea7 Author: Bram Moolenaar <Bram@vim.org> Date: Tue Sep 6 21:14:27 2016 +0200 patch 7.4.2337 Problem: taglist() is still slow. (Luc Hermitte) Solution: Check for CTRL-C less often when finding duplicates.

--- a/src/tag.c
+++ b/src/tag.c
@@ -2401,7 +2401,7 @@ parse_line:
 				      && vim_memcmp(mfp2->match, mfp->match,
 						       (size_t)mfp->len) == 0)
 				  break;
-			      line_breakcheck();
+			      fast_breakcheck();
 			  }
 			if (i < 0)
 			{