Author: Richard Plangger <r...@pasra.at>
Branch: vecopt-merge
Changeset: r79005:299b91377f5f
Date: 2015-08-17 10:40 +0200
http://bitbucket.org/pypy/pypy/changeset/299b91377f5f/
Log: added some comments to the state switching
diff --git a/pypy/module/micronumpy/loop.py b/pypy/module/micronumpy/loop.py
--- a/pypy/module/micronumpy/loop.py
+++ b/pypy/module/micronumpy/loop.py
@@ -58,7 +58,7 @@
if right_out_equal:
return call2_advance_out_left
else:
- # left is a scalar, and right and out do not match
+ # worst case, nothing can be shared and lhs is a scalar
return call2_advance_out_left_right
else:
# lhs is NOT a scalar
@@ -71,14 +71,17 @@
return call2_advance_out_right
else:
if right_out_equal:
+ # right and out are equal, only advance left and out
return call2_advance_out_left
else:
if right_iter and right_state.same(left_state):
+ # left and right are equal, but still need to advance out
return call2_advance_out_left_eq_right
else:
+ # worst case, nothing can be shared
return call2_advance_out_left_right
- assert 0, "logical problem with the selection of the call 2 case"
+ assert 0, "logical problem with the selection of the call2 case"
def generate_call2_cases(name, left_state, right_state):
call2_driver = jit.JitDriver(name='numpy_call2_' + name,
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