[LLVMdev] lowering and non legal types in fast-isel

[Reed Kotler]

I understand that but falling back makes the compilation slower.

I'm wondering what could be done to remove this restriction about fast-isel not being able to 
handle non legal types.


________________________________________
From: Anton Korobeynikov [anton at korobeynikov.info]
Sent: Sunday, August 31, 2014 12:55 AM
To: Reed Kotler
Cc: LLVMdev at cs.uiuc.edu
Subject: Re: [LLVMdev] lowering and non legal types in fast-isel

Fastisel should fallback to usual selector in the cases it cannot
handle. So, for illegal types as well.

On Sun, Aug 31, 2014 at 1:42 AM, reed kotler <rkotler at mips.com> wrote:
> Fast-isel is not equipped in general to deal with non legal types.
>
> It would seem that an llvm assembler pass run after clang  but before llvm
> could do the lowering though.
>
> Any thoughts?
>
> Reed
>
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--
With best regards, Anton Korobeynikov
Faculty of Mathematics and Mechanics, Saint Petersburg State University