[PyPy-issue] [issue665] Efficient zeroing of heap locations
pypy-dev-issue at codespeak.net
Fri Mar 11 17:24:43 CET 2011
David Edelsohn <dje.gcc at gmail.com> added the comment:
For some of the Unladen benchmarks, we found long sequences of XOR/XCHG.
Someone else mentioned that storing more zeros was safe. If the address range
is not contiguous, then zeroing blocks of memory is not practical and the new
MOV sequences are a reasonable solution.
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