[llvm-dev] What is HexagonCommonGEP.cpp for?

Ryan Taylor via llvm-dev llvm-dev at lists.llvm.org
Wed Jun 14 07:27:50 PDT 2017


  Is this partly due to hardware loops not being common? I'm curious, we do
something very similar for similar reasons.

On Wed, Jun 14, 2017 at 10:23 AM, Krzysztof Parzyszek via llvm-dev <
llvm-dev at lists.llvm.org> wrote:

> On 6/14/2017 9:05 AM, 陳韋任 wrote:
>> I only see Hexagon has such optimization, is there any reason that
>> Hexagon need this?
> This question is backwards. Since it was written in the first place, there
> obviously was a reason for it. It was originally written for Hexagon and so
> it remains as a Hexagon-only optimization. It could become a
> target-independent optimization, but so far nothing has been done to
> evaluate the impact of it for other targets.
> -Krzysztof
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