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gcc.texi (Passes): Update due to recent -fdce -> -fssa-dce changes. 

* gcc.texi (Passes): Update due to recent -fdce -> -fssa-dce
        changes.  Fix documentation for SSA DCE pass.

From-SVN: r43660
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Jeffrey A Law 2001-06-29 22:04:40 +00:00 committed by Jeff Law
parent 9199d62b82
commit 8f1ae09ac2
2 changed files with 8 additions and 4 deletions
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gcc/ChangeLog
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@ -5,6 +5,9 @@
Fri Jun 29 12:27:24 2001 Jeffrey A Law (law@cygnus.com)
* doc/gcc.texi (Passes): Update due to recent -fdce -> -fssa-dce
changes. Fix documentation for SSA DCE pass.
* ssa-dce.c (ssa_eliminate_dead_code): Renamed from
eliminate_date_code.
* ssa.h (ssa_eliminate_dead_code): Corresponding changes.

9
gcc/doc/gcc.texi
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@ -3425,13 +3425,14 @@ the input file name.
@cindex dead code elimination
@opindex fdce
@item
Dead Code Elimination. Turned on by the @option{-fdce} option.
This pass performs elimination of code considered unnecessary because it
is never executed. It operates in linear time.
SSA Aggressive Dead Code Elimination. Turned on by the @option{-fssa-dce}
option. This pass performs elimination of code considered unnecessary because
it has no externally visible effects on the program. It operates in
linear time.
@opindex dX
The option @option{-dX} causes a debugging dump of the RTL code after
this pass. This dump file's name is made by appending @samp{.dce} to
this pass. This dump file's name is made by appending @samp{.ssadce} to
the input file name.
@end itemize
@cindex global common subexpression elimination