[pypy-commit] pypy numpy-speed: mark iter state fields immutable

[bdkearns]

Author: Brian Kearns <bdkearns at gmail.com>
Branch: numpy-speed
Changeset: r70727:5edc38cf52ad
Date: 2014-04-17 17:44 -0400
http://bitbucket.org/pypy/pypy/changeset/5edc38cf52ad/

Log:	mark iter state fields immutable

diff --git a/pypy/module/micronumpy/iterators.py b/pypy/module/micronumpy/iterators.py
--- a/pypy/module/micronumpy/iterators.py
+++ b/pypy/module/micronumpy/iterators.py
@@ -80,6 +80,8 @@
 
 
 class IterState(object):
+    _immutable_fields_ = ['index', 'indices[*]', 'offset']
+
     def __init__(self, index, indices, offset):
         self.index = index
         self.indices = indices
diff --git a/pypy/module/micronumpy/test/test_zjit.py b/pypy/module/micronumpy/test/test_zjit.py
--- a/pypy/module/micronumpy/test/test_zjit.py
+++ b/pypy/module/micronumpy/test/test_zjit.py
@@ -564,8 +564,8 @@
             'float_mul': 2,
             'getarrayitem_gc': 7,
             'getarrayitem_gc_pure': 15,
-            'getfield_gc': 21,
-            'getfield_gc_pure': 31,
+            'getfield_gc': 8,
+            'getfield_gc_pure': 44,
             'guard_class': 4,
             'guard_false': 14,
             'guard_not_invalidated': 2,