[all-commits] [llvm/llvm-project] bfa1af: [OpenMPOpt] Improve __kmpc_alloc_shared handling

[Johannes Doerfert via All-commits]

  Branch: refs/heads/main
  Home:   https://github.com/llvm/llvm-project
  Commit: bfa1afb81c7d521e87c249fb4ecfd55ebd0de01c
      https://github.com/llvm/llvm-project/commit/bfa1afb81c7d521e87c249fb4ecfd55ebd0de01c
  Author: Johannes Doerfert <johannes at jdoerfert.de>
  Date:   2023-08-17 (Thu, 17 Aug 2023)

  Changed paths:
    M llvm/lib/Transforms/IPO/AttributorAttributes.cpp
    M llvm/test/Transforms/OpenMP/remove_globalization.ll

  Log Message:
  -----------
  [OpenMPOpt] Improve __kmpc_alloc_shared handling

We know that __kmpc_alloc_shared is by construction matched with a
unique __kmpc_free_shared. Making the compiler aware of these facts
helps to avoid mallocs/allocas.

Fixes: https://github.com/llvm/llvm-project/issues/64551


  Commit: fb0e49f230b30ffd7f4d68dd89d9cce95ec54ef9
      https://github.com/llvm/llvm-project/commit/fb0e49f230b30ffd7f4d68dd89d9cce95ec54ef9
  Author: Johannes Doerfert <johannes at jdoerfert.de>
  Date:   2023-08-17 (Thu, 17 Aug 2023)

  Changed paths:
    M llvm/include/llvm/Frontend/OpenMP/OMPKinds.def
    M llvm/test/Transforms/OpenMP/add_attributes.ll
    M llvm/test/Transforms/OpenMP/remove_globalization.ll

  Log Message:
  -----------
  [OpenMP] Add `noalias` to runtime allocator functions


Compare: https://github.com/llvm/llvm-project/compare/b00b4697ae79...fb0e49f230b3