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Re: [PATCH][ARM] Handle simple SImode PLUS and MINUS operations in rtx costs
- From: Kyrill Tkachov <kyrylo dot tkachov at arm dot com>
- To: GCC Patches <gcc-patches at gcc dot gnu dot org>
- Cc: Ramana Radhakrishnan <Ramana dot Radhakrishnan at arm dot com>, Richard Earnshaw <Richard dot Earnshaw at arm dot com>
- Date: Wed, 16 Apr 2014 09:26:08 +0100
- Subject: Re: [PATCH][ARM] Handle simple SImode PLUS and MINUS operations in rtx costs
- Authentication-results: sourceware.org; auth=none
- References: <5330697C dot 3000002 at arm dot com> <533C08AB dot 9070805 at arm dot com>
On 02/04/14 13:55, Kyrill Tkachov wrote:
Pinging this for stage1, otherwise I'll forget about it and it'll fall through
the cracks...
http://gcc.gnu.org/ml/gcc-patches/2014-03/msg01276.html
Thanks,
Kyrill
Ping.
http://gcc.gnu.org/ml/gcc-patches/2014-03/msg01276.html
Thanks,
Kyrill
On 24/03/14 17:21, Kyrill Tkachov wrote:
Hi all,
I noticed that we don't handle simple reg-to-reg arithmetic operations in the
arm rtx cost functions. We should be adding the cost of alu.arith to the costs
of the operands. This patch does that. Since we don't have any cost tables yet
that have a non-zero value for that field it shouldn't affect code-gen for any
current cores.
Bootstrapped and tested on arm-none-linux-gnueabihf.
Ok for next stage1?
Thanks,
Kyrill
2014-03-24 Kyrylo Tkachov <kyrylo.tkachov@arm.com>
* config/arm/arm.c (arm_new_rtx_costs): Handle reg-to-reg PLUS
and MINUS RTXs.