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Re: fix ADDR_COST for x86_64
- To: Jan Hubicka <jh at suse dot cz>
- Subject: Re: fix ADDR_COST for x86_64
- From: Richard Henderson <rth at redhat dot com>
- Date: Fri, 5 Oct 2001 12:59:13 -0700
- Cc: gcc-patches at gcc dot gnu dot org, patches at x86-64 dot org
- References: <20011004161119.E18334@atrey.karlin.mff.cuni.cz>
On Thu, Oct 04, 2001 at 04:11:19PM +0200, Jan Hubicka wrote:
> * i386.c (*_cost): Add movsx/movzx cost.
> * i386.h (struct processor_costs): Add movsx/movzx fields.
> (RTX_COSTS): Handle zero/sign extend + avoid believing that
> 64bit operations require split on 64bit machine.
> (CONST_COST): Make large 64bit constants expensive on 64bit compilation.
Ok.
r~