Ping^2

On Thu, Jul 9, 2015 at 5:42 PM, Bin.Cheng <amker.ch...@gmail.com> wrote:
> Ping.
>
> On Fri, Jun 26, 2015 at 4:47 PM, Bin Cheng <bin.ch...@arm.com> wrote:
>> Hi,
>> The canonical form of subtract of immediate is (add op0 minus_imm), which is
>> supported with addsi3_aarch64 pattern on aarch64.  Unfortunately wrong cost
>> (8 rather than 4) is computed by aarch64_rtx_cost because it doesn't honor
>> the fact that it actually is a sub instruction.  This patch fixes it, is
>> this OK?
>>
>> Thanks,
>> bin
>>
>> 2015-06-25  Bin Cheng  <bin.ch...@arm.com>
>>
>>         * config/aarch64/aarch64.c (aarch64_rtx_costs): Handle addition of
>>         minus immediate.

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