[llvm] r178058 - Update PEI's virtual-register-based scavenging to support multiple simultaneous mappings

[Hal Finkel]

Pranav,

I've attached a potential fix for this problem. Can you please test it and let me know what you think?

Thanks again,
Hal

P.S. Your test case does not seem to crash with a trunk llc. I've not tried rolling back to your exact specified revision (yet) [which I suppose was r178546, right?].

----- Original Message -----
> From: "Pranav Bhandarkar" <pranavb at codeaurora.org>
> To: "Hal Finkel" <hfinkel at anl.gov>
> Cc: llvm-commits at cs.uiuc.edu
> Sent: Tuesday, April 2, 2013 7:45:55 PM
> Subject: Re: [llvm] r178058 - Update PEI's virtual-register-based scavenging to support multiple simultaneous
> mappings
> 
> >> Hi Hal,
> >>
> >> Here is a reduced testcase.
> >>
> >> llc -O3 -mcpu=hexagonv5r regscavengerbug.ll
> > Great, thanks! I'll work on fixing the problem.
> >
> >   -Hal
> I just noticed a typo in a previous email. It should be
> "-mcpu=hexagonv5" and not "hexagonv5r".
> 
> Thanks,
> Pranav
> 
> --
> Qualcomm Innovation Center, Inc. is a member of Code Aurora Forum,
> hosted by The Linux Foundation
> 
> 
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