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From: "olegendo at gcc dot gnu.org" <gcc-bugzilla@gcc.gnu.org>
To: gcc-bugs@gcc.gnu.org
Subject: [Bug target/53949] [SH] Add support for mac.w / mac.l instructions
Date: Wed, 08 Apr 2015 20:08:00 -0000
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https://gcc.gnu.org/bugzilla/show_bug.cgi?id=53949

--- Comment #14 from Oleg Endo <olegendo at gcc dot gnu.org> ---
(In reply to Oleg Endo from comment #3)
> 
> - When compiling for big endian the RA mistakes mach and macl when
>   storing mach:macl to a DImode reg:reg pair.
>   This could probably fixed by providing appropriate move insns patterns.

I believe this is PR 29961.