gcc/gcc ChangeLog simplify-rtx.c testsuite/Cha ...

[aoliva@gcc.gnu.org]

CVSROOT:	/cvs/gcc
Module name:	gcc
Changes by:	aoliva@gcc.gnu.org	2005-03-24 05:57:52

Modified files:
	gcc            : ChangeLog simplify-rtx.c 
	gcc/testsuite  : ChangeLog 
Added files:
	gcc/testsuite/gcc.target/i386: badshift.c 

Log message:
	gcc/ChangeLog:
	PR rtl-optimization/20532
	* simplify-rtx.c (simplify_binary_operation_1): Protect from
	overflow when adding coefficients for PLUS or MINUS.
	(simplify_binary_operation_1): Handle CONST_DOUBLE exact power of
	two as multiplier.
	gcc/testsuite/ChangeLog:
	PR rtl-optimization/20532
	* gcc.target/i386/badshift.c: New.

Patches:
http://gcc.gnu.org/cgi-bin/cvsweb.cgi/gcc/gcc/ChangeLog.diff?cvsroot=gcc&r1=2.7981&r2=2.7982
http://gcc.gnu.org/cgi-bin/cvsweb.cgi/gcc/gcc/simplify-rtx.c.diff?cvsroot=gcc&r1=1.234&r2=1.235
http://gcc.gnu.org/cgi-bin/cvsweb.cgi/gcc/gcc/testsuite/ChangeLog.diff?cvsroot=gcc&r1=1.5205&r2=1.5206
http://gcc.gnu.org/cgi-bin/cvsweb.cgi/gcc/gcc/testsuite/gcc.target/i386/badshift.c.diff?cvsroot=gcc&r1=NONE&r2=1.1