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RFA: invert-speedup-2.diff

From: Raja R Harinath
Subject: RFA: invert-speedup-2.diff
Date: Sat, 29 Mar 2003 16:57:06 -0600
User-agent: Gnus/5.090017 (Oort Gnus v0.17) Emacs/21.3.50 (gnu/linux)


Here's the next part of the speedup.  This basically implements the
following optimization:

  ab * (a | c | !b | d!e) = ab | abc | 0 | abd!e = ab

With this, the time for 'make check' in 'lib/Automake/tests' goes
from ~4.00s to ~0.75s.

- Hari
Raja R Harinath ------------------------------ address@hidden

Attachment: invert-speedup-2.diff
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