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Documentation error
- To: egcs-bugs at cygnus dot com
- Subject: Documentation error
- From: Carlo Wood <carlo at runaway dot xs4all dot nl>
- Date: Tue, 24 Nov 1998 01:57:39 +0100 (CET)
The egcs-1.1b (and probably later?) contains in the gcc.info-3 file:
`-foptimize-register-moves'
`-fregmove'
Attempt to reassign register numbers in move instructions and as
operands of other simple instructions in order to maximize the
amount of register tying. This is especially helpful on machines
with two-operand instructions. GNU CC enables this optimization
by default with `-O2' or higher.
Note `-fregmove' and `-foptimize-register-moves' are the same
optimization.
However:
~/c++/tests>g++ -foptimize-register-moves bop.cc
cc1plus: Invalid option `-foptimize-register-moves'
-fregmove does work.
Note that -foptimize-register-moves is also mentioned in gcc.info-1,
in the list of all options.
--
Carlo Wood <carlo@runaway.xs4all.nl>