[all-commits] [llvm/llvm-project] 1f6f05: [SPIR-V] Emit variable pointer capability for reso...

[Helena Kotas via All-commits]

  Branch: refs/heads/main
  Home:   https://github.com/llvm/llvm-project
  Commit: 1f6f059b8f15cc34c848f9030fb53e63771bbd2e
      https://github.com/llvm/llvm-project/commit/1f6f059b8f15cc34c848f9030fb53e63771bbd2e
  Author: Helena Kotas <hekotas at microsoft.com>
  Date:   2026-09-23 (Wed, 23 Sep 2026)

  Changed paths:
    M llvm/lib/Target/SPIRV/SPIRVInstructionSelector.cpp
    M llvm/lib/Target/SPIRV/SPIRVModuleAnalysis.cpp
    M llvm/test/CodeGen/SPIRV/pointers/structured-buffer-access.ll
    A llvm/test/CodeGen/SPIRV/pointers/variable-pointers-storage-buffer.ll

  Log Message:
  -----------
  [SPIR-V] Emit variable pointer capability for resources (#225471)

A function-local SPIR-V variable whose allocated type contains a
`StorageBuffer` pointer requires the module to declare the
`VariablePointersStorageBuffer` capability.

This change detects that variable-pointer context while lowering
function-local variables and recursively checks nested aggregate types.
Directly used structured buffers do not enable the capability. It also
registers the capability as available for Vulkan targets that support
SPIR-V 1.3 or `SPV_KHR_variable_pointers`, and emits the extension when
targeting older SPIR-V versions.

Fixes: #202064

Assisted by GPT-5.6 Sol

---------

Co-authored-by: Copilot App <223556219+Copilot at users.noreply.github.com>



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