Re: [avr-llvm-devel] Inline assembly.

[Borja F. <bor...@gm...>]

I've been adding fixes to pass a ton of regression in the Generic folder.
Currently there are two tests that fail with a "cannot select build_pair"
related to adding 16bit reg classes in the inline asm code. The rest of
failing tests are related with not being able to run llc with -O0. There's
a serious codegen bug that i spotted yesterday while doing the fixes that I
need to work on.


2013/7/22 Borja Ferrer <bor...@gm...>

> Hello Stepan,
>
> 3) Yes, it's the second case. It's explained in
> http://www.nongnu.org/avr-libc/user-manual/inline_asm.html
> but in case there are any doubts basically it works the same way as
> multibyte constraints except that when you see an "aN", where N is a
> number, you should print the alternative regname. Of course this should
> only work for X Y and Z, not sure how gcc complains when you use another
> register, or maybe it ignores it and prints the normal register name.
>
>