Bob Haarman 1a4cbbe49f [codeview] make DbgVariableLocation::extractFromMachineInstruction use Optional ...

Summary:
DbgVariableLocation::extractFromMachineInstruction originally
returned a boolean indicating success. This change makes it return
an Optional<DbgVariableLocation> so we cannot try to access the fields
of the struct if they aren't valid.

Reviewers: aprantl, rnk, zturner

Subscribers: llvm-commits, hiraditya

Differential Revision: https://reviews.llvm.org/D37279

llvm-svn: 312143

2017-08-30 17:50:21 +00:00

9.6 KiB

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