|time spent in compiler phases firstname.lastname@example.org (Greg Michaelson) (1991-09-26)|
|time spent in compiler phases email@example.com (1991-09-29)|
|time spent in compiler phases firstname.lastname@example.org (1991-10-03)|
|From:||Greg Michaelson <email@example.com>|
|Date:||Thu, 26 Sep 91 10:41:00 BST|
Does any one have figures for the proportion of total compile time
spent in lexical analysis, syntax analysis, semantic analysis, code
generation and optimisation?
[It varies a lot by compiler. For Ken Thompson's Plan 9 C compiler, he said
that the Yacc parser took as much time as everything else put together, 25%
for low-level character bashing and 75% for Yacc slowness. This is quite
unusual, and his is an extremely fast compiler. -John]
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