[all-commits] [llvm/llvm-project] 39ce99: [CIR] Upstream cir-canonicalize pass (#131891)

[Andy Kaylor via All-commits]

  Branch: refs/heads/main
  Home:   https://github.com/llvm/llvm-project
  Commit: 39ce99589b05ddd43e5c8b7f89ab5bbfda40d2ce
      https://github.com/llvm/llvm-project/commit/39ce99589b05ddd43e5c8b7f89ab5bbfda40d2ce
  Author: Andy Kaylor <akaylor at nvidia.com>
  Date:   2025-03-19 (Wed, 19 Mar 2025)

  Changed paths:
    M clang/include/clang/Basic/DiagnosticFrontendKinds.td
    M clang/include/clang/CIR/CIRGenerator.h
    A clang/include/clang/CIR/CIRToCIRPasses.h
    M clang/include/clang/CIR/Dialect/Passes.h
    M clang/include/clang/CIR/Dialect/Passes.td
    M clang/include/clang/CIR/MissingFeatures.h
    M clang/include/clang/Driver/Options.td
    M clang/include/clang/Frontend/FrontendOptions.h
    M clang/lib/CIR/CodeGen/CIRGenModule.cpp
    M clang/lib/CIR/CodeGen/CIRGenModule.h
    M clang/lib/CIR/CodeGen/CIRGenerator.cpp
    A clang/lib/CIR/Dialect/Transforms/CIRCanonicalize.cpp
    M clang/lib/CIR/Dialect/Transforms/CMakeLists.txt
    M clang/lib/CIR/FrontendAction/CIRGenAction.cpp
    M clang/lib/CIR/FrontendAction/CMakeLists.txt
    M clang/lib/CIR/Lowering/CIRPasses.cpp
    M clang/lib/CIR/Lowering/DirectToLLVM/LowerToLLVM.cpp
    M clang/lib/Driver/ToolChains/Clang.cpp
    M clang/lib/Frontend/CompilerInvocation.cpp
    M clang/lib/FrontendTool/CMakeLists.txt
    M clang/lib/FrontendTool/ExecuteCompilerInvocation.cpp
    A clang/test/CIR/Transforms/canonicalize.cir
    A clang/test/CIR/mlirargs.c
    A clang/test/CIR/mlprint.c
    M clang/tools/cir-opt/cir-opt.cpp

  Log Message:
  -----------
  [CIR] Upstream cir-canonicalize pass (#131891)

This change introduces the cir-canonicalize pass. This is a simple
cir-to-cir transformation that eliminates empty scopes and redundant
branches. It will be expanded in future changes to simplify other
redundant instruction sequences.

MLIR verification and mlir-specific command-line option handling is also
introduced here.



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