[PATCH] D78393: [SCCP] Drop unnecessary early exit for ExtractValueInst.

[Florian Hahn via Phabricator via llvm-commits]

fhahn created this revision.
fhahn added reviewers: efriedma, mssimpso, davide.
Herald added a subscriber: hiraditya.
Herald added a project: LLVM.

visitExtractValueInst uses mergeInValue, so it already can handle
constant ranges. Initially the early exit was using isOverdefined to
keep things as NFC during the initial move to ValueLatticeElement.
As the function already supports constant ranges, it can just use
ValueState[&I].isOverdefined.


Repository:
  rG LLVM Github Monorepo

https://reviews.llvm.org/D78393

Files:
  llvm/lib/Transforms/Scalar/SCCP.cpp
  llvm/test/Transforms/SCCP/conditions-ranges.ll
  llvm/test/Transforms/SCCP/constant-range-struct.ll

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