gcc/gcc ChangeLog builtins.c testsuite/ChangeL ...

[rth@gcc.gnu.org]

CVSROOT:	/cvs/gcc
Module name:	gcc
Changes by:	rth@gcc.gnu.org	2001-12-27 15:34:31

Modified files:
	gcc            : ChangeLog builtins.c 
	gcc/testsuite  : ChangeLog 
Added files:
	gcc/testsuite/gcc.c-torture/execute: string-opt-16.c 

Log message:
	* builtins.c (expand_builtin_memcmp): Optimize memcmp built-in
	when all arguments are known constant.  Fixes PR opt/3508.
	
	* gcc.c-torture/execute/string-opt-16.c: New testcase.

Patches:
http://gcc.gnu.org/cgi-bin/cvsweb.cgi/gcc/gcc/ChangeLog.diff?cvsroot=gcc&r1=1.12457&r2=1.12458
http://gcc.gnu.org/cgi-bin/cvsweb.cgi/gcc/gcc/builtins.c.diff?cvsroot=gcc&r1=1.137&r2=1.138
http://gcc.gnu.org/cgi-bin/cvsweb.cgi/gcc/gcc/testsuite/ChangeLog.diff?cvsroot=gcc&r1=1.1498&r2=1.1499
http://gcc.gnu.org/cgi-bin/cvsweb.cgi/gcc/gcc/testsuite/gcc.c-torture/execute/string-opt-16.c.diff?cvsroot=gcc&r1=NONE&r2=1.1