[all-commits] [llvm/llvm-project] a11d86: clang: Fix broken implicit cast to generic address...

[Matt Arsenault via All-commits]

  Branch: refs/heads/main
  Home:   https://github.com/llvm/llvm-project
  Commit: a11d86461e7d7d9bce3d04a39ded1cad394239ca
      https://github.com/llvm/llvm-project/commit/a11d86461e7d7d9bce3d04a39ded1cad394239ca
  Author: Matt Arsenault <Matthew.Arsenault at amd.com>
  Date:   2025-05-08 (Thu, 08 May 2025)

  Changed paths:
    M clang/lib/CodeGen/CGDecl.cpp
    M clang/lib/CodeGen/CGExpr.cpp
    M clang/lib/CodeGen/CodeGenFunction.h
    M clang/test/CodeGenOpenCL/addr-space-struct-arg.cl
    M clang/test/CodeGenOpenCL/amdgcn-automatic-variable.cl
    M clang/test/CodeGenOpenCL/amdgpu-abi-struct-arg-byref.cl
    M clang/test/CodeGenOpenCL/amdgpu-enqueue-kernel.cl
    M clang/test/CodeGenOpenCL/amdgpu-nullptr.cl
    M clang/test/CodeGenOpenCL/blocks.cl
    M clang/test/CodeGenOpenCL/builtins-alloca.cl
    M clang/test/CodeGenOpenCL/builtins-amdgcn-gfx12.cl
    M clang/test/CodeGenOpenCL/implicit-addrspacecast-function-parameter.cl
    M clang/test/Index/pipe-size.cl

  Log Message:
  -----------
  clang: Fix broken implicit cast to generic address space (#138863)

This fixes emitting undefined behavior where a 64-bit generic
pointer is written to a 32-bit slot allocated for a private pointer.
This can be seen in test/CodeGenOpenCL/amdgcn-automatic-variable.cl's
wrong_pointer_alloca.



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