[llvm-commits] Fixing Bug 13662: paired register for inline asm with 64-bit data on ARM

[Evan Cheng]

LGTM
On Nov 28, 2012, at 9:50 AM, Weiming Zhao <weimingz at codeaurora.org> wrote:

> Ping …
>  
> Qualcomm Innovation Center, Inc. is a member of Code Aurora Forum, hosted by The Linux Foundation
>  
> From: Weiming Zhao [mailto:weimingz at codeaurora.org] 
> Sent: Monday, November 19, 2012 3:13 PM
> To: 'Jakob Stoklund Olesen'; 'llvm-commits at cs.uiuc.edu'; 'grosbach at apple.com'
> Subject: Fixing Bug 13662: paired register for inline asm with 64-bit data on ARM
>  
> Hi Jakob & Jim,
>  
> Sorry for keep you busy, but here is the last part of my patches. :D
> It enables inline asm of ldrexd/strexd to work correctly.
>  
> I have to change CodeGen/SelectionDAG/InstrEmitter.cpp a litte bit because: for the inline asm nodes, I have to put a virtual reg instead of a value node.
> And due to “untyped” type, I can’t insert CopyFromReg or CopyToReg as the framework won’t find the GPRPairReg class.
> So I have to directly connect ExtractSubReg, RegSequence with a Register SDNode.
>  
> Please help to review it.
>  
> Thanks,
> Weiming
>  
> Qualcomm Innovation Center, Inc. is a member of Code Aurora Forum, hosted by The Linux Foundation
>  
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