[all-commits] [llvm/llvm-project] 3eb9e7: [CIR] Implement switch case simplify (#140649)

[Andres-Salamanca via All-commits]

  Branch: refs/heads/main
  Home:   https://github.com/llvm/llvm-project
  Commit: 3eb9e7715ea520d56ab0d8009111fd08ab4d4b03
      https://github.com/llvm/llvm-project/commit/3eb9e7715ea520d56ab0d8009111fd08ab4d4b03
  Author: Andres-Salamanca <andrealebarbaritos at gmail.com>
  Date:   2025-05-22 (Thu, 22 May 2025)

  Changed paths:
    M clang/include/clang/CIR/MissingFeatures.h
    M clang/lib/CIR/CodeGen/CIRGenStmt.cpp
    M clang/lib/CIR/Dialect/Transforms/CIRSimplify.cpp
    A clang/test/CIR/Transforms/switch-fold.cir

  Log Message:
  -----------
  [CIR] Implement switch case simplify (#140649)

This PR introduces a new **CIR simplify for `switch` cases**, which
folds multiple **cascading `Equal` cases** (that contain only a
`YieldOp`) into a single `CaseOp` of kind `AnyOf`.

This logic is based on the suggestion from this discussion:
https://github.com/llvm/llvm-project/pull/138003#discussion_r2070564458



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