gcc/gcc ChangeLog fold-const.c testsuite/Chang ...

[sayle@gcc.gnu.org]

CVSROOT:	/cvs/gcc
Module name:	gcc
Changes by:	sayle@gcc.gnu.org	2004-05-08 17:36:22

Modified files:
	gcc            : ChangeLog fold-const.c 
	gcc/testsuite  : ChangeLog 
Added files:
	gcc/testsuite/gcc.c-torture/execute: divcmp-1.c divcmp-2.c 
	                                     divcmp-3.c 

Log message:
	* fold-const.c (fold_div_compare): New function to optimize X/C1 op C2
	where op is a comparison operator and C1 and C2 are integer constants
	into a range check.
	(fold): Call fold_div_compare.
	
	* gcc.c-torture/execute/divcmp-1.c: New test case.
	* gcc.c-torture/execute/divcmp-2.c: New test case.
	* gcc.c-torture/execute/divcmp-3.c: New test case.

Patches:
http://gcc.gnu.org/cgi-bin/cvsweb.cgi/gcc/gcc/ChangeLog.diff?cvsroot=gcc&r1=2.3609&r2=2.3610
http://gcc.gnu.org/cgi-bin/cvsweb.cgi/gcc/gcc/fold-const.c.diff?cvsroot=gcc&r1=1.373&r2=1.374
http://gcc.gnu.org/cgi-bin/cvsweb.cgi/gcc/gcc/testsuite/ChangeLog.diff?cvsroot=gcc&r1=1.3727&r2=1.3728
http://gcc.gnu.org/cgi-bin/cvsweb.cgi/gcc/gcc/testsuite/gcc.c-torture/execute/divcmp-1.c.diff?cvsroot=gcc&r1=NONE&r2=1.1
http://gcc.gnu.org/cgi-bin/cvsweb.cgi/gcc/gcc/testsuite/gcc.c-torture/execute/divcmp-2.c.diff?cvsroot=gcc&r1=NONE&r2=1.1
http://gcc.gnu.org/cgi-bin/cvsweb.cgi/gcc/gcc/testsuite/gcc.c-torture/execute/divcmp-3.c.diff?cvsroot=gcc&r1=NONE&r2=1.1