[pypy-commit] pypy improve-rbigint: One fix, plenty of bugs left

[stian]

Author: stian
Branch: improve-rbigint
Changeset: r56364:27c686ebbb30
Date: 2012-07-12 20:33 +0200
http://bitbucket.org/pypy/pypy/changeset/27c686ebbb30/

Log:	One fix, plenty of bugs left

diff --git a/pypy/rlib/rbigint.py b/pypy/rlib/rbigint.py
--- a/pypy/rlib/rbigint.py
+++ b/pypy/rlib/rbigint.py
@@ -1411,6 +1411,7 @@
         # way to store the size, instead of resizing the list!
         # XXX change the implementation, encoding length via the sign.
         bslice._digits = b._digits[nbdone : nbdone + nbtouse]
+        bslice.size = nbtouse
         product = _k_mul(a, bslice)
 
         # Add into result.
diff --git a/pypy/translator/goal/targetbigintbenchmark.py b/pypy/translator/goal/targetbigintbenchmark.py
--- a/pypy/translator/goal/targetbigintbenchmark.py
+++ b/pypy/translator/goal/targetbigintbenchmark.py
@@ -35,24 +35,24 @@
         Sum:  142.686547
         
         Pypy with improvements:
-        mod by 2:  0.005984
-        mod by 10000:  3.664320
-        mod by 1024 (power of two):  0.011461
-        Div huge number by 2**128: 2.146720
-        rshift: 2.319716
-        lshift: 1.344974
-        Floordiv by 2: 1.597306
-        Floordiv by 3 (not power of two): 4.197931
-        2**500000: 0.033942
-        (2**N)**5000000 (power of two): 0.050020
-        10000 ** BIGNUM % 100 1.960709
-        i = i * i: 3.902392
-        n**10000 (not power of two): 5.980987
-        Power of two ** power of two: 0.013227
-        v = v * power of two 3.478328
-        v = v * v 6.345457
-        v = v + v 2.770636
-        Sum:  39.824111
+        mod by 2:  0.005516
+        mod by 10000:  3.650751
+        mod by 1024 (power of two):  0.011492
+        Div huge number by 2**128: 2.148300
+        rshift: 2.333236
+        lshift: 1.355453
+        Floordiv by 2: 1.604574
+        Floordiv by 3 (not power of two): 4.155219
+        2**500000: 0.033960
+        (2**N)**5000000 (power of two): 0.046241
+        10000 ** BIGNUM % 100 1.963261
+        i = i * i: 3.906100
+        n**10000 (not power of two): 5.994802
+        Power of two ** power of two: 0.013270
+        v = v * power of two 3.481778
+        v = v * v 6.348381
+        v = v + v 2.782792
+        Sum:  39.835126
 
         A pure python form of those tests where also run
         Improved pypy           | Pypy                  | CPython 2.7.3