egcs/gcc ChangeLog fold-const.c combine.c
law@gcc.gnu.org
law@gcc.gnu.org
Thu Oct 14 21:50:00 GMT 1999
CVSROOT: /cvs/gcc
Module name: egcs
Changes by: law@sourceware.cygnus.com 99/10/14 21:50:09
Modified files:
gcc : ChangeLog fold-const.c combine.c
Log message:
* fold-const.c (fold): Move bit_rotate code to the EXPR_PLUS case,
falltrought to assocate code.
Convert XOR to OR in code like (a&c1)^(a&c2) where c1 and c2 don't have
bits in common.
* combine.c (simplify_logical): Convert XOR to IOR if operands have
no bits in common; remove XOR to ROTATE conversion.
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