[compiler-rt] r243686 - [Sanitizers] [Bug 24151] Generalize type of offset in internal_mmap

[Daniel Sanders]

I don't think it's related but it's not a false positive either. The annotate step is failing with:
	/mnt/b/sanitizer-buildbot3/sanitizer-x86_64-linux-fast/build/llvm/lib/Target/X86/AsmParser/X86AsmInstrumentation.cpp:264:38: error: no member named 'Mode64Bit' in namespace 'llvm::X86'
	    return STI.getFeatureBits()[X86::Mode64Bit];
	                                ~~~~~^
and other compilation errors in areas this patch didn't touch.

I don't see another likely candidate in the blamelist though so I'll revert and see if it turns green.

> -----Original Message-----
> From: hwennborg at google.com [mailto:hwennborg at google.com] On Behalf
> Of Hans Wennborg
> Sent: 31 July 2015 00:14
> To: Daniel Sanders
> Cc: llvm-commits
> Subject: Re: [compiler-rt] r243686 - [Sanitizers] [Bug 24151] Generalize type
> of offset in internal_mmap
> 
> On Thu, Jul 30, 2015 at 2:00 PM, Daniel Sanders
> <daniel.sanders at imgtec.com> wrote:
> > Author: dsanders
> > Date: Thu Jul 30 16:00:48 2015
> > New Revision: 243686
> >
> > URL: http://llvm.org/viewvc/llvm-project?rev=243686&view=rev
> > Log:
> > [Sanitizers] [Bug 24151] Generalize type of offset in internal_mmap
> >
> > Summary:
> > Using u64 as type for offset changes its value, changing starting address for
> map in file.
> > This patch solves Bug 24151, which raises issue while mapping file in mips32.
> >
> > Patch by Mohit Bhakkad
> >
> > Reviewers: dsanders, kcc
> >
> > Subscribers: hans, llvm-commits, samsonov, nitesh.jain, sagar, bhushan,
> jaydeep
> >
> > Differential Revision: http://reviews.llvm.org/D11588
> 
> It might not be related (I'm not entirely sure what's going on), but
> it seems this change made a bot go red:
> http://lab.llvm.org:8011/builders/sanitizer-x86_64-linux-fast/builds/5935
> 
> Given that, I'm not going to try and squeeze this into 3.7 right before RC2.