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Re: [tree0ssa] Dead const/pure function removal take II
- From: Richard Henderson <rth at redhat dot com>
- To: Jan Hubicka <jh at suse dot cz>
- Cc: gcc-patches at gcc dot gnu dot org
- Date: Tue, 11 Nov 2003 09:45:23 -0800
- Subject: Re: [tree0ssa] Dead const/pure function removal take II
- References: <20031111173141.GS1729@kam.mff.cuni.cz>
On Tue, Nov 11, 2003 at 06:31:41PM +0100, Jan Hubicka wrote:
> * gimplify.c (gimplify_call_expr): Unset side effects for
> pure functions too.
> * tree-cfg.c (update-call_expr_flags): New function.
> (remove_useless_stmts_and_vars_1): Use it.
> (is_ctrl_altering_stmt): Pure/const calls enver alter.
> * tree-ssa-dce.c (stmt_useful_p): Check side effects flag
> on call exprs.
Ok.
r~