[pypy-commit] pypy default: Also unroll this function sometimes

[alex_gaynor]

Author: Alex Gaynor <alex.gaynor at gmail.com>
Branch: 
Changeset: r59186:74d7def3be80
Date: 2012-12-01 12:54 -0800
http://bitbucket.org/pypy/pypy/changeset/74d7def3be80/

Log:	Also unroll this function sometimes

diff --git a/pypy/module/_sre/interp_sre.py b/pypy/module/_sre/interp_sre.py
--- a/pypy/module/_sre/interp_sre.py
+++ b/pypy/module/_sre/interp_sre.py
@@ -43,13 +43,15 @@
             raise SystemError
     return w_default
 
+
+ at jit.look_inside_iff(lambda ctx, num_groups: jit.isconstant(num_groups))
 def do_flatten_marks(ctx, num_groups):
     # Returns a list of RPython-level integers.
     # Unlike the app-level groups() method, groups are numbered from 0
     # and the returned list does not start with the whole match range.
     if num_groups == 0:
         return None
-    result = [-1] * (2*num_groups)
+    result = [-1] * (2 * num_groups)
     mark = ctx.match_marks
     while mark is not None:
         index = mark.gid