linux-kernel - Re: [llvmlinux] [PATCH] [RFC] [X86] Fix a compilation issue with clang.

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Message-ID: <6320951.e8eKRZ5b9s@aragorn.auenland.lan>
Date:	Thu, 29 Aug 2013 20:00:24 +0200
From:	Jan-Simon Möller <dl9pf@....de>
To:	llvmlinux@...ts.linuxfoundation.org
Cc:	"H. Peter Anvin" <hpa@...or.com>, pageexec@...email.hu,
	x86@...nel.org, linux-kernel@...r.kernel.org
Subject: Re: [llvmlinux] [PATCH] [RFC] [X86] Fix a compilation issue with clang.

On Thursday 29 August 2013 10:28:52 H. Peter Anvin wrote:
> On 08/29/2013 10:13 AM, dl9pf@....de wrote:
> > From: Jan-Simon Möller <dl9pf@....de>
> > 
> > Clang does not support the "shortcut" we're taking here for gcc (see
> > below).
> Read: clang is gratuitously incompatible with gcc.

Let's discuss this during the llvm track @ plumbers . 
 
> > The patch extends and uses the macro _ASM_DX to do the job.
> 
> You just changed the sematics of the _ASM_* macros... that doesn't seem
> like a great idea.  It's probably okay for the registers, but still...
> 

Well, we followed your idea for the _ASM_DX macros as you mentioned them 
earlier.

I tested this change for both clang-3.3 and gcc-4.7.2 . 

Best,
JS
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