--- a/mercurial/revset.py	Sat Mar 12 17:08:42 2011 +0100
+++ b/mercurial/revset.py	Sat Mar 12 18:48:30 2011 +0100
@@ -6,7 +6,7 @@
 # GNU General Public License version 2 or any later version.
 
 import re
-import parser, util, error, discovery, help
+import parser, util, error, discovery, help, hbisect
 import bookmarks as bookmarksmod
 import match as matchmod
 from i18n import _
@@ -683,12 +683,27 @@
                for r in bookmarksmod.listbookmarks(repo).values()])
     return [r for r in subset if r in bms]
 
+def bisected(repo, subset, x):
+    """``bisected(string)``
+    Changesets marked in the specified bisect state (good, bad, skip).
+    """
+    state = getstring(x, _("bisect requires a string")).lower()
+    if state not in ('good', 'bad', 'skip', 'unknown'):
+        raise ParseError(_('invalid bisect state'))
+    marked = set(repo.changelog.rev(n) for n in hbisect.load_state(repo)[state])
+    l = []
+    for r in subset:
+        if r in marked:
+            l.append(r)
+    return l
+
 symbols = {
     "adds": adds,
     "all": getall,
     "ancestor": ancestor,
     "ancestors": ancestors,
     "author": author,
+    "bisected": bisected,
     "bookmark": bookmark,
     "branch": branch,
     "children": children,

--- a/tests/test-bisect.t	Sat Mar 12 17:08:42 2011 +0100
+++ b/tests/test-bisect.t	Sat Mar 12 18:48:30 2011 +0100
@@ -377,6 +377,44 @@
   date:        Thu Jan 01 00:00:06 1970 +0000
   summary:     msg 6
   
+  $ hg log -r "bisected(good)"
+  changeset:   0:b99c7b9c8e11
+  user:        test
+  date:        Thu Jan 01 00:00:00 1970 +0000
+  summary:     msg 0
+  
+  changeset:   5:7874a09ea728
+  user:        test
+  date:        Thu Jan 01 00:00:05 1970 +0000
+  summary:     msg 5
+  
+  $ hg log -r "bisected(bad)"
+  changeset:   6:a3d5c6fdf0d3
+  user:        test
+  date:        Thu Jan 01 00:00:06 1970 +0000
+  summary:     msg 6
+  
+  $ hg log -r "bisected(skip)"
+  changeset:   1:5cd978ea5149
+  user:        test
+  date:        Thu Jan 01 00:00:01 1970 +0000
+  summary:     msg 1
+  
+  changeset:   2:db07c04beaca
+  user:        test
+  date:        Thu Jan 01 00:00:02 1970 +0000
+  summary:     msg 2
+  
+  changeset:   3:b53bea5e2fcb
+  user:        test
+  date:        Thu Jan 01 00:00:03 1970 +0000
+  summary:     msg 3
+  
+  changeset:   4:9b2ba8336a65
+  user:        test
+  date:        Thu Jan 01 00:00:04 1970 +0000
+  summary:     msg 4
+  
 
   $ set +e