[all-commits] [llvm/llvm-project] fee27b: [DirectX] Legalize lifetime intrinsics for DXIL (#...

[Deric C. via All-commits]

  Branch: refs/heads/main
  Home:   https://github.com/llvm/llvm-project
  Commit: fee27b33373c126c2205f49c8fc9b8c9fd2f3dca
      https://github.com/llvm/llvm-project/commit/fee27b33373c126c2205f49c8fc9b8c9fd2f3dca
  Author: Deric C. <cheung.deric at gmail.com>
  Date:   2025-07-11 (Fri, 11 Jul 2025)

  Changed paths:
    M llvm/lib/Target/DirectX/DXILPrepare.cpp
    M llvm/lib/Target/DirectX/DXILShaderFlags.cpp
    M llvm/lib/Target/DirectX/DXILWriter/DXILBitcodeWriter.cpp
    A llvm/test/CodeGen/DirectX/ShaderFlags/lifetimes-noint64op.ll
    M llvm/test/CodeGen/DirectX/legalize-lifetimes-valver-1.6.ll
    A llvm/test/tools/dxil-dis/lifetimes.ll

  Log Message:
  -----------
  [DirectX] Legalize lifetime intrinsics for DXIL (#148003)

Fixes #147395

This PR legalizes lifetime intrinsics for DXIL by
- Adding a bitcast for the lifetime intrinsics' pointer operand in
dxil-prepare to ensure it gets cast to an `i8*` when written to DXIL
- Removing the memory attribute from lifetime intrinsics in dxil-prepare
to match DXIL
- Making the DXIL bitcode writer write the base/demangled name of
lifetime intrinsics to the symbol table
- Making lifetime intrinsics an exception to Int64Ops shader flag
analysis (otherwise we get `error: Flags must match usage.` from the
validator)



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