[Bug tree-optimization/18828] [4.0 Regression] Extraneous warning with var_start and optimization

[cvs-commit at gcc dot gnu dot org]

------- Additional Comments From cvs-commit at gcc dot gnu dot org  2005-01-07 09:01 -------
Subject: Bug 18828

CVSROOT:	/cvs/gcc
Module name:	gcc
Changes by:	jakub@gcc.gnu.org	2005-01-07 09:01:00

Modified files:
	gcc            : ChangeLog builtins.c 
	gcc/testsuite  : ChangeLog 
Added files:
	gcc/testsuite/gcc.dg: 20050105-2.c 

Log message:
	PR tree-optimization/18828
	* builtins.c (expand_builtin_next_arg): Remove argument and all
	the argument checking.
	(expand_builtin): Adjust caller.
	(expand_builtin_va_start): Likewise.  Remove error for too many
	arguments.
	(fold_builtin_next_arg): Issue error for too many arguments.
	After checking arguments, replace them with magic arguments that
	prevent further checking of the args.
	
	* gcc.dg/20050105-2.c: New test.

Patches:
http://gcc.gnu.org/cgi-bin/cvsweb.cgi/gcc/gcc/ChangeLog.diff?cvsroot=gcc&r1=2.7054&r2=2.7055
http://gcc.gnu.org/cgi-bin/cvsweb.cgi/gcc/gcc/builtins.c.diff?cvsroot=gcc&r1=1.410&r2=1.411
http://gcc.gnu.org/cgi-bin/cvsweb.cgi/gcc/gcc/testsuite/ChangeLog.diff?cvsroot=gcc&r1=1.4860&r2=1.4861
http://gcc.gnu.org/cgi-bin/cvsweb.cgi/gcc/gcc/testsuite/gcc.dg/20050105-2.c.diff?cvsroot=gcc&r1=NONE&r2=1.1



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http://gcc.gnu.org/bugzilla/show_bug.cgi?id=18828