Message 80571 - Python tracker

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Author	blaisorblade
Recipients	Ringding, ajaksu2, alexandre.vassalotti, bboissin, belopolsky, blaisorblade, christian.heimes, collinwinter, djc, facundobatista, gregory.p.smith, jyasskin, lemburg, pitrou, ralph.corderoy, rhettinger, skip.montanaro, spiv, theatrus
Date	2009-01-26.15:28:34
SpamBayes Score	7.497015e-06
Marked as misclassified	No
Message-id	<1232983715.55.0.906589769122.issue4753@psf.upfronthosting.co.za>
In-reply-to

Content
-fno-gcse is controversial. Even if it might avoid jumps sharing, the impact of that option has to be measured, since common subexpression elimination allows omitting some recalculations, so disabling global CSE might have a negative impact on other code. It would be maybe better to disable GCSE only for the interpreter loop, but that would make some intra-file inlining impossible.

-fno-gcse is controversial.
Even if it might avoid jumps sharing, the impact of that option has to
be measured, since common subexpression elimination allows omitting some
recalculations, so disabling global CSE might have a negative impact on
other code.

It would be maybe better to disable GCSE only for the interpreter loop,
but that would make some intra-file inlining impossible.

History
Date	User	Action	Args
2009-01-26 15:28:36	blaisorblade	set	recipients: + blaisorblade, lemburg, skip.montanaro, collinwinter, rhettinger, facundobatista, gregory.p.smith, spiv, belopolsky, pitrou, christian.heimes, ajaksu2, alexandre.vassalotti, jyasskin, djc, ralph.corderoy, bboissin, theatrus, Ringding
2009-01-26 15:28:35	blaisorblade	set	messageid: <1232983715.55.0.906589769122.issue4753@psf.upfronthosting.co.za>
2009-01-26 15:28:34	blaisorblade	link	issue4753 messages
2009-01-26 15:28:34	blaisorblade	create