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Date: Mon, 3 Nov 2014 07:17:19 +1100
From: Anton Blanchard <anton@samba.org>
To: Segher Boessenkool <segher@kernel.crashing.org>
Subject: Re: [PATCH] powerpc: Replace cc constraint in inline assembly with cr0
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Hi Segher,

> > Our inline assembly only clobbers the first condition register
> > field, but we mark all of them as being clobbered.
> 
> No, we don't.  "cc" has been an alias for cr0 for over twenty two and
> a half years now; it has never changed meaning.  This is an LLVM bug.

Thanks! I opened http://llvm.org/bugs/show_bug.cgi?id=21451 to track it.

Anton