diff --git a/runtime/autoload/dist/ft.vim b/runtime/autoload/dist/ft.vim
index 95135c8..5014e75 100644
--- a/runtime/autoload/dist/ft.vim
+++ b/runtime/autoload/dist/ft.vim
@@ -3,7 +3,7 @@
 # Vim functions for file type detection
 #
 # Maintainer:		The Vim Project <https://github.com/vim/vim>
-# Last Change:		2025 Apr 21
+# Last Change:		2025 Jun 17
 # Former Maintainer:	Bram Moolenaar <Bram@vim.org>
 
 # These functions are moved here from runtime/filetype.vim to make startup
@@ -184,9 +184,18 @@
 export def FTll()
   if getline(1) =~ ';\|\<source_filename\>\|\<target\>'
     setf llvm
-  else
-    setf lifelines
+    return
   endif
+  var n = 1
+  while n < 100 && n <= line("$")
+    var line = getline(n)
+    if line =~ '^\s*%'
+      setf lex
+      return
+    endif
+    n += 1
+  endwhile
+  setf lifelines
 enddef
 
 export def FTlpc()
diff --git a/runtime/filetype.vim b/runtime/filetype.vim
index 76229ed..f90c6f8 100644
--- a/runtime/filetype.vim
+++ b/runtime/filetype.vim
@@ -1420,7 +1420,7 @@
 " LFTP
 au BufNewFile,BufRead lftp.conf,.lftprc,*lftp/rc	setf lftp
 
-" Lifelines (or Lex for C++!)
+" Lifelines, LLVM, or Lex for C++
 au BufNewFile,BufRead *.ll			call dist#ft#FTll()
 
 " Lilo: Linux loader