[all-commits] [llvm/llvm-project] 2195fe: [AMDGPU] Add the support for 45-bit buffer resourc...

[Shilei Tian via All-commits]

  Branch: refs/heads/main
  Home:   https://github.com/llvm/llvm-project
  Commit: 2195fe7e018db3d9a6c2e392a2bf8591859b872f
      https://github.com/llvm/llvm-project/commit/2195fe7e018db3d9a6c2e392a2bf8591859b872f
  Author: Shilei Tian <i at tianshilei.me>
  Date:   2025-09-24 (Wed, 24 Sep 2025)

  Changed paths:
    M clang/include/clang/Basic/BuiltinsAMDGPU.def
    M clang/test/CodeGenHIP/builtins-make-buffer-rsrc.hip
    M clang/test/CodeGenOpenCL/builtins-amdgcn-make-buffer-rsrc.cl
    M llvm/include/llvm/IR/IntrinsicsAMDGPU.td
    M llvm/lib/Target/AMDGPU/AMDGPU.td
    M llvm/lib/Target/AMDGPU/AMDGPULegalizerInfo.cpp
    M llvm/lib/Target/AMDGPU/GCNSubtarget.h
    M llvm/lib/Target/AMDGPU/SIISelLowering.cpp
    M llvm/test/CodeGen/AMDGPU/GlobalISel/llvm.amdgcn.make.buffer.rsrc.ll
    M llvm/test/CodeGen/AMDGPU/iglp-no-clobber.ll
    M llvm/test/CodeGen/AMDGPU/llvm.amdgcn.make.buffer.rsrc.ll
    M llvm/test/CodeGen/AMDGPU/lower-buffer-fat-pointers-pointer-ops.ll
    M llvm/test/CodeGen/AMDGPU/make-buffer-rsrc-lds-fails.ll
    M llvm/test/CodeGen/AMDGPU/ptr-buffer-alias-scheduling.ll
    M llvm/test/Transforms/Attributor/AMDGPU/tag-invariant-loads.ll
    M llvm/test/Transforms/FunctionAttrs/make-buffer-rsrc.ll
    M llvm/test/Transforms/InferAddressSpaces/AMDGPU/mem-intrinsics.ll
    M llvm/test/Transforms/InstCombine/AMDGPU/amdgcn-intrinsics.ll
    M llvm/test/Transforms/LICM/AMDGPU/buffer-rsrc-ptrs.ll
    M llvm/test/Transforms/LoopVectorize/AMDGPU/buffer-fat-pointer.ll
    M mlir/include/mlir/Dialect/AMDGPU/IR/AMDGPU.td
    M mlir/include/mlir/Dialect/LLVMIR/ROCDLOps.td
    M mlir/lib/Conversion/AMDGPUToROCDL/AMDGPUToROCDL.cpp
    M mlir/test/Conversion/AMDGPUToROCDL/amdgpu-to-rocdl.mlir
    M mlir/test/Dialect/AMDGPU/ops.mlir
    M mlir/test/Dialect/LLVMIR/rocdl.mlir
    M mlir/test/Target/LLVMIR/rocdl.mlir

  Log Message:
  -----------
  [AMDGPU] Add the support for 45-bit buffer resource (#159702)

On new targets like `gfx1250`, the buffer resource (V#) now uses this
format:

```
base (57-bit): resource[56:0]
num_records (45-bit): resource[101:57]
reserved (6-bit): resource[107:102]
stride (14-bit): resource[121:108]
```

This PR changes the type of `num_records` from `i32` to `i64` in both
builtin and intrinsic, and also adds the support for lowering the new
format.

Fixes SWDEV-554034.

---------

Co-authored-by: Krzysztof Drewniak <Krzysztof.Drewniak at amd.com>



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