Antoine Pitrou wrote:
Antoine Pitrou <solipsis <at> pitrou.net> writes:
In http://bugs.python.org/issue2459 ("speedup for / while / if with better
bytecode") I had the same problem and decided to change the lnotab format so
that line number increments are signed bytes rather than unsigned.
By the way, the same change could be done for relative jump offsets in the
bytecode (change them from unsigned shorts to signed shorts). Taken together,
both modifications would release a lot of constraints on the ordering of code
blocks.
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By the way, you were right about JUMP_IF_TRUE/JUMP_IF_FALSE. It's far
too late. Apologies.
I'm still pretty sure this is the peepholer's doing, though, and if
that's the case then I want to try and deal with it at the AST level.
Which is what's being achieved with the AST optimization I originally
proposed, right?
Cheers,
T
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