2 files changed, 11 insertions, 1 deletions
diff --git a/runtime/lua/vim/filetype.lua b/runtime/lua/vim/filetype.lua
index f22d814647..3b3c4481f2 100644
--- a/runtime/lua/vim/filetype.lua
+++ b/runtime/lua/vim/filetype.lua
@@ -682,7 +682,6 @@ local extension = {
   l = 'lex',
   lhs = 'lhaskell',
   lidr = 'lidris2',
-  ll = 'lifelines',
   ly = 'lilypond',
   ily = 'lilypond',
   liquid = 'liquid',
@@ -697,6 +696,7 @@ local extension = {
   lt = 'lite',
   lite = 'lite',
   livemd = 'livebook',
+  ll = detect.ll,
   log = detect.log,
   Log = detect.log,
   LOG = detect.log,
diff --git a/runtime/lua/vim/filetype/detect.lua b/runtime/lua/vim/filetype/detect.lua
index 1b9e28efad..98b001bd51 100644
--- a/runtime/lua/vim/filetype/detect.lua
+++ b/runtime/lua/vim/filetype/detect.lua
@@ -869,6 +869,16 @@ function M.log(path, _)
 end
 
 --- @type vim.filetype.mapfn
+function M.ll(_, bufnr)
+  local first_line = getline(bufnr, 1)
+  if matchregex(first_line, [[;\|\<source_filename\>\|\<target\>]]) then
+    return 'llvm'
+  else
+    return 'lifelines'
+  end
+end
+
+--- @type vim.filetype.mapfn
 function M.lpc(_, bufnr)
   if vim.g.lpc_syntax_for_c then
     for _, line in ipairs(getlines(bufnr, 1, 12)) do