diff --git a/mercurial/cmdutil.py b/mercurial/cmdutil.py
--- a/mercurial/cmdutil.py
+++ b/mercurial/cmdutil.py
@@ -1349,7 +1349,7 @@ class changeset_printer(object):
             hexfunc = short
         # as of now, wctx.node() and wctx.rev() return None, but we want to
         # show the same values as {node} and {rev} templatekw
-        revnode = (scmutil.intrev(rev), hexfunc(bin(ctx.hex())))
+        revnode = (scmutil.intrev(ctx), hexfunc(bin(ctx.hex())))
 
         if self.ui.quiet:
             self.ui.write("%d:%s\n" % revnode, label='log.node')
diff --git a/mercurial/scmutil.py b/mercurial/scmutil.py
--- a/mercurial/scmutil.py
+++ b/mercurial/scmutil.py
@@ -376,9 +376,10 @@ def walkrepos(path, followsym=False, see
                         newdirs.append(d)
             dirs[:] = newdirs
 
-def intrev(rev):
-    """Return integer for a given revision that can be used in comparison or
+def intrev(ctx):
+    """Return integer for a given basectx that can be used in comparison or
     arithmetic operation"""
+    rev = ctx.rev()
     if rev is None:
         return wdirrev
     return rev
@@ -466,7 +467,7 @@ def meaningfulparents(repo, ctx):
         return parents
     if repo.ui.debugflag:
         return [parents[0], repo['null']]
-    if parents[0].rev() >= intrev(ctx.rev()) - 1:
+    if parents[0].rev() >= intrev(ctx) - 1:
         return []
     return parents
 
diff --git a/mercurial/templatekw.py b/mercurial/templatekw.py
--- a/mercurial/templatekw.py
+++ b/mercurial/templatekw.py
@@ -161,7 +161,7 @@ def _formatrevnode(ctx):
         hexnode = ctx.hex()
     else:
         hexnode = ctx.hex()[:12]
-    return '%d:%s' % (scmutil.intrev(ctx.rev()), hexnode)
+    return '%d:%s' % (scmutil.intrev(ctx), hexnode)
 
 def getfiles(repo, ctx, revcache):
     if 'files' not in revcache:
@@ -611,7 +611,7 @@ def showphaseidx(repo, ctx, templ, **arg
 @templatekeyword('rev')
 def showrev(repo, ctx, templ, **args):
     """Integer. The repository-local changeset revision number."""
-    return scmutil.intrev(ctx.rev())
+    return scmutil.intrev(ctx)
 
 def showrevslist(name, revs, **args):
     """helper to generate a list of revisions in which a mapped template will