[all-commits] [llvm/llvm-project] beae0e: [AMDGPU] Use a target feature to enable __builtin_...

[Juan Manuel Martinez Caamaño via All-commits]

  Branch: refs/heads/main
  Home:   https://github.com/llvm/llvm-project
  Commit: beae0e9f1a7c16e5603e443d51a7155e0c713b04
      https://github.com/llvm/llvm-project/commit/beae0e9f1a7c16e5603e443d51a7155e0c713b04
  Author: Juan Manuel Martinez Caamaño <jmartinezcaamao at gmail.com>
  Date:   2025-04-02 (Wed, 02 Apr 2025)

  Changed paths:
    M clang/include/clang/Basic/BuiltinsAMDGPU.def
    M clang/lib/Basic/Targets/AMDGPU.cpp
    M clang/test/CodeGen/link-builtin-bitcode.c
    M clang/test/CodeGenCXX/dynamic-cast-address-space.cpp
    R clang/test/CodeGenOpenCL/builtins-amdgcn-gfx942.cl
    A clang/test/CodeGenOpenCL/builtins-amdgcn-global-load-lds.cl
    R clang/test/SemaOpenCL/builtins-amdgcn-gfx942-err.cl
    A clang/test/SemaOpenCL/builtins-amdgcn-global-load-lds-err.cl
    M flang/test/Lower/OpenMP/target_cpu_features.f90
    M llvm/lib/Target/AMDGPU/AMDGPU.td
    M llvm/lib/Target/AMDGPU/AMDGPUInstructionSelector.cpp
    M llvm/lib/Target/AMDGPU/GCNSubtarget.h
    M llvm/lib/Target/AMDGPU/SIISelLowering.cpp
    M llvm/lib/TargetParser/TargetParser.cpp
    A llvm/test/CodeGen/AMDGPU/llvm.amdgcn.buffer.load.lds.err.ll
    A llvm/test/CodeGen/AMDGPU/llvm.amdgcn.global.load.lds.err.ll

  Log Message:
  -----------
  [AMDGPU] Use a target feature to enable __builtin_amdgcn_global_load_lds on gfx9/10 (#133055)

This patch introduces the `vmem-to-lds-load-insts` target feature, which
can be used to enable builtins `__builtin_amdgcn_global_load_lds` and
`__builtin_amdgcn_raw_ptr_buffer_load_lds` on platforms which have this
feature.

This feature is only available on gfx9/10.

A limitation of using a common target feature for both builtins is that
we could have made `__builtin_amdgcn_raw_ptr_buffer_load_lds` available
on gfx6,7,8.



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