diff -r 0d032756e9bf -r d99468d2b09a mercurial/cmdutil.py
--- a/mercurial/cmdutil.py	Wed Aug 08 17:07:27 2018 -0700
+++ b/mercurial/cmdutil.py	Wed Aug 08 19:29:02 2018 +0530
@@ -1899,7 +1899,7 @@
     # wanted: a cache of filenames that were changed (ctx.files()) and that
     # match the file filtering conditions.
 
-    if match.always():
+    if match.always() or allfiles:
         # No files, no patterns.  Display all revs.
         wanted = revs
     elif not slowpath: