llvm dev - Mar 2014 - [LLVMdev] PR19267 - Add a feature to clobber non-calle-save regs in the prolog.

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

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.  :)

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
> _______________________________________________
> LLVM Developers mailing list
> LLVMdev at cs.uiuc.edu         http://llvm.cs.uiuc.edu
> http://lists.cs.uiuc.edu/mailman/listinfo/llvmdev

----- 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
> > _______________________________________________
> > LLVM Developers mailing list
> > LLVMdev at cs.uiuc.edu         http://llvm.cs.uiuc.edu
> > http://lists.cs.uiuc.edu/mailman/listinfo/llvmdev
> 
> _______________________________________________
> LLVM Developers mailing list
> LLVMdev at cs.uiuc.edu         http://llvm.cs.uiuc.edu
> http://lists.cs.uiuc.edu/mailman/listinfo/llvmdev
> 
-- 
Hal Finkel
Assistant Computational Scientist
Leadership Computing Facility
Argonne National Laboratory