[all-commits] [llvm/llvm-project] 82f254: [OpenMP][OMPIRBuilder] Use device shared memory fo...

[Sergio Afonso via All-commits]

  Branch: refs/heads/main
  Home:   https://github.com/llvm/llvm-project
  Commit: 82f254992bbb822639cbe14d55df3bf5de65fa6a
      https://github.com/llvm/llvm-project/commit/82f254992bbb822639cbe14d55df3bf5de65fa6a
  Author: Sergio Afonso <safonsof at amd.com>
  Date:   2026-04-27 (Mon, 27 Apr 2026)

  Changed paths:
    M llvm/include/llvm/Frontend/OpenMP/OMPIRBuilder.h
    M llvm/include/llvm/Transforms/Utils/CodeExtractor.h
    M llvm/lib/Frontend/OpenMP/OMPIRBuilder.cpp
    M llvm/lib/Transforms/IPO/HotColdSplitting.cpp
    M llvm/lib/Transforms/IPO/IROutliner.cpp
    M llvm/lib/Transforms/IPO/PartialInlining.cpp
    M llvm/lib/Transforms/Utils/CodeExtractor.cpp
    M llvm/unittests/Transforms/Utils/CodeExtractorTest.cpp
    M mlir/lib/Target/LLVMIR/Dialect/OpenMP/OpenMPToLLVMIRTranslation.cpp
    M mlir/test/Target/LLVMIR/omptarget-parallel-llvm.mlir

  Log Message:
  -----------
  [OpenMP][OMPIRBuilder] Use device shared memory for arg structures (#150925)

Argument structures are created when sections of the LLVM IR
corresponding to an OpenMP construct are outlined into their own
function. For this, stack allocations are used.

This patch modifies this behavior when compiling for a target device and
outlining `parallel`-related IR, so that it uses device shared memory
instead of private stack space. This is needed in order for threads to
have access to these arguments.



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