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* gcse.c: Remove an obsolete comment.

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From-SVN: r95318
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Kazu Hirata 2005-02-21 00:23:50 +00:00 committed by Kazu Hirata
parent f1cc922096
commit a3c28ba275
2 changed files with 6 additions and 13 deletions
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gcc/ChangeLog
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@ -1,3 +1,7 @@
2005-02-20 Kazu Hirata <kazu@cs.umass.edu>
* gcse.c: Remove an obsolete comment.
2005-02-20 Hans-Peter Nilsson <hp@axis.com>
* doc/extend.texi (Function Attributes) <Attribute const>: The

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gcc/gcse.c
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@ -264,19 +264,8 @@ Software Foundation, 59 Temple Place - Suite 330, Boston, MA
the result of the expression is copied to a new register, and the redundant
expression is deleted by replacing it with this new register. Classic GCSE
doesn't have this problem as much as it computes the reaching defs of
each register in each block and thus can try to use an existing register.
**********************
A fair bit of simplicity is created by creating small functions for simple
tasks, even when the function is only called in one place. This may
measurably slow things down [or may not] by creating more function call
overhead than is necessary. The source is laid out so that it's trivial
to make the affected functions inline so that one can measure what speed
up, if any, can be achieved, and maybe later when things settle things can
be rearranged.
Help stamp out big monolithic functions! */
each register in each block and thus can try to use an existing
register. */
/* GCSE global vars. */