[all-commits] [llvm/llvm-project] 062111: InferAddressSpaces: Fix assert on inferred source ...

[Johannes Doerfert via All-commits]

  Branch: refs/heads/release/14.x
  Home:   https://github.com/llvm/llvm-project
  Commit: 062111fe8073de55c0f00fe04847e986781d1cad
      https://github.com/llvm/llvm-project/commit/062111fe8073de55c0f00fe04847e986781d1cad
  Author: Matt Arsenault <Matthew.Arsenault at amd.com>
  Date:   2022-02-15 (Tue, 15 Feb 2022)

  Changed paths:
    M llvm/lib/Transforms/Scalar/InferAddressSpaces.cpp
    A llvm/test/Transforms/InferAddressSpaces/AMDGPU/issue53665.ll

  Log Message:
  -----------
  InferAddressSpaces: Fix assert on inferred source for inttoptr/ptrtoint

If we had some source value we could infer an address space from that
went through a ptrtoint/inttoptr pair, this would fail since bitcast
can't change the address space.

Fixes issue 53665.

(cherry picked from commit 52fbb786a638ecc7349641b45b62a5abafffdf75)


  Commit: ea97fc6b564ec6a843337a550a2209b653cffceb
      https://github.com/llvm/llvm-project/commit/ea97fc6b564ec6a843337a550a2209b653cffceb
  Author: Johannes Doerfert <johannes at jdoerfert.de>
  Date:   2022-02-15 (Tue, 15 Feb 2022)

  Changed paths:
    M llvm/lib/Transforms/IPO/OpenMPOpt.cpp
    M llvm/test/Transforms/OpenMP/barrier_removal.ll

  Log Message:
  -----------
  [OpenMP][FIX] The `llvm.amdgcn.s.barrier` is actually not aligned

If we assume `llvm.amdgcn.s.barrier` is aligned we may remove it and
cause OpenMP GPU applications on the AMD GPU to be stuck or wrongly
synchronized.

Reported by Carlo Bertolli.

(cherry picked from commit ede248e614bb2c232b7b1815829eb3d5c1aab1e4)


Compare: https://github.com/llvm/llvm-project/compare/b2ca48a84122...ea97fc6b564e