egcs/gcc ChangeLog flow.c testsuite/ChangeLog ...

[jakub@gcc.gnu.org]

CVSROOT:	/cvs/gcc
Module name:	egcs
Changes by:	jakub@gcc.gnu.org	2001-12-04 01:33:17

Modified files:
	gcc            : ChangeLog flow.c 
	gcc/testsuite  : ChangeLog 
Added files:
	gcc/testsuite/gcc.c-torture/compile: 20011130-2.c 

Log message:
	* flow.c (ior_reg_cond): Return NULL if ! add and rtx wasn't optimized.
	Return correct value if one of the subexpressions was optimized to
	0 resp. 1.  Optimize (x | A) | x and (x & A) | x.
	(and_reg_cond): Similarly.
	
	* gcc.c-torture/compile/20011130-2.c: New test.

Patches:
http://gcc.gnu.org/cgi-bin/cvsweb.cgi/egcs/gcc/ChangeLog.diff?cvsroot=gcc&r1=1.12133&r2=1.12134
http://gcc.gnu.org/cgi-bin/cvsweb.cgi/egcs/gcc/flow.c.diff?cvsroot=gcc&r1=1.492&r2=1.493
http://gcc.gnu.org/cgi-bin/cvsweb.cgi/egcs/gcc/testsuite/ChangeLog.diff?cvsroot=gcc&r1=1.1449&r2=1.1450
http://gcc.gnu.org/cgi-bin/cvsweb.cgi/egcs/gcc/testsuite/gcc.c-torture/compile/20011130-2.c.diff?cvsroot=gcc&r1=NONE&r2=1.1