[pypy-commit] pypy default: Backed out changeset a988d66682e8

[stian]

Author: stian
Branch: 
Changeset: r57087:ba4a11d21ccc
Date: 2012-09-02 17:38 +0200
http://bitbucket.org/pypy/pypy/changeset/ba4a11d21ccc/

Log:    Backed out changeset a988d66682e8

diff --git a/pypy/rlib/rbigint.py b/pypy/rlib/rbigint.py
--- a/pypy/rlib/rbigint.py
+++ b/pypy/rlib/rbigint.py
@@ -168,9 +168,14 @@
         # waste of time and space given that 5*15 = 75 bits are rarely
         # needed.
         # XXX: Even better!
-        assert SHIFT == LONG_BIT - 1
-        return rbigint([_store_digit(ival)], sign, 1)
-        """   
+        if SHIFT >= 63:
+            carry = ival >> SHIFT
+            if carry:
+                return rbigint([_store_digit(ival & MASK),
+                    _store_digit(carry & MASK)], sign, 2)
+            else:
+                return rbigint([_store_digit(ival & MASK)], sign, 1)
+            
         t = ival
         ndigits = 0
         while t:
@@ -184,7 +189,7 @@
             t >>= SHIFT
             p += 1
 
-        return v"""
+        return v
 
     @staticmethod
     def frombool(b):
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