[PATCH] D112721: [SCCP] Tune `zext` and `sext` processing for overdefined operand

[Anton Afanasyev via Phabricator via llvm-commits]

anton-afanasyev created this revision.
anton-afanasyev added reviewers: RKSimon, spatel, SjoerdMeijer, fhahn.
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Extended value is known to be inside range smaller than full set.
Prevent SCCP to mark such value as overdefined.

Fixes PR52253


Repository:
  rG LLVM Github Monorepo

https://reviews.llvm.org/D112721

Files:
  llvm/lib/Transforms/Utils/SCCPSolver.cpp
  llvm/test/Transforms/PhaseOrdering/X86/pr52253.ll
  llvm/test/Transforms/SCCP/ip-ranges-casts.ll
  llvm/test/Transforms/SCCP/overdefined-ext.ll
  llvm/test/Transforms/SCCP/pr52253.ll

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