[LLVMdev] PR19267 - Add a feature to clobber non-calle-save regs in the prolog.

[Hal Finkel]

----- Original Message -----
> From: "Philip Reames" <listmail at philipreames.com>
> To: "Andrew Trick" <atrick at apple.com>, "llvmdev at cs.uiuc.edu Dev" <llvmdev at cs.uiuc.edu>
> Sent: Thursday, March 27, 2014 6:15:01 PM
> Subject: Re: [LLVMdev] PR19267 - Add a feature to clobber non-calle-save regs in the prolog.
> 
> Sounds like it could be useful for debugging purposes.
> 
> If you implement it, I'd turn it on for some of our local
> verification
> runs.  Finding runtime calling convention bugs cheaply is always
> nice.  :)

+1

 -Hal

> 
> Philip
> 
> On 03/27/2014 03:10 PM, Andrew Trick wrote:
> > This is a feature I’m considering for the LLVM backend. Feel free
> > to provide input in the following PR.
> >
> > llvm.org/pr19267 - Add a feature to clobber non-callee-save regs in
> > the prolog.
> >
> > I’m copying llvm-dev because it seems like something that others
> > must have already done or at least thought about at some point.
> >
> > -Andy
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-- 
Hal Finkel
Assistant Computational Scientist
Leadership Computing Facility
Argonne National Laboratory