[llvm-dev] AAResultsWrapperPass assertion in 3.9

[Welson Sun via llvm-dev]

Thanks Eli.

Ashutosh once asked the same question, and later said:

'createLegacyPMAAResults' can help here.

But how should this be used to solve the assertion problem?

On Jan 25, 2017, 4:10 PM -0800, Friedman, Eli <efriedma at codeaurora.org>, wrote:
> On 1/25/2017 4:00 PM, Welson Sun via llvm-dev wrote:
> > Hi,
> >
> > Migrating from 3.5 to 3.9. There is a module pass that uses alias
> > analysis started breaking at runtime:
> >
> > llvm/lnx64/llvm/include/llvm/PassAnalysisSupport.h:236: AnalysisType&
> > llvm::Pass::getAnalysisID(llvm::AnalysisID) const [with AnalysisType =
> > llvm::AAResultsWrapperPass; llvm::AnalysisID = const void*]: Assertion
> > `ResultPass && "getAnalysis*() called on an analysis that was not "
> > "'required' by pass!"' failed.
> >
>
> See https://reviews.llvm.org/rL247167 .
>
> -Eli
>
> --
> Employee of Qualcomm Innovation Center, Inc.
> Qualcomm Innovation Center, Inc. is a member of Code Aurora Forum, a Linux Foundation Collaborative Project
>
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