[all-commits] [llvm/llvm-project] 09c436: [SeparateConstOffsetFromGEP] Preserve inbounds fla...

[Fabian Ritter via All-commits]

  Branch: refs/heads/users/ritter-x2a/03-10-_separateconstoffsetfromgep_preserve_inbounds_flag_based_on_valuetracking
  Home:   https://github.com/llvm/llvm-project
  Commit: 09c4363b2e31ec2951d602309f2156435303e4d0
      https://github.com/llvm/llvm-project/commit/09c4363b2e31ec2951d602309f2156435303e4d0
  Author: Fabian Ritter <fabian.ritter at amd.com>
  Date:   2025-03-18 (Tue, 18 Mar 2025)

  Changed paths:
    M llvm/lib/Transforms/Scalar/SeparateConstOffsetFromGEP.cpp
    M llvm/test/Transforms/SeparateConstOffsetFromGEP/AMDGPU/preserve-inbounds.ll
    M llvm/test/Transforms/SeparateConstOffsetFromGEP/NVPTX/split-gep-and-gvn.ll
    M llvm/test/Transforms/SeparateConstOffsetFromGEP/NVPTX/split-gep.ll

  Log Message:
  -----------
  [SeparateConstOffsetFromGEP] Preserve inbounds flag based on ValueTracking

If we know that the initial GEP was inbounds, and we change it to a
sequence of GEPs from the same base pointer where every offset is
non-negative, then the new GEPs are inbounds.

For SWDEV-516125.


  Commit: 4ab790dd1f2c8ce6c7f88ede8bacc7c446f66c2a
      https://github.com/llvm/llvm-project/commit/4ab790dd1f2c8ce6c7f88ede8bacc7c446f66c2a
  Author: Fabian Ritter <fabian.ritter at amd.com>
  Date:   2025-03-18 (Tue, 18 Mar 2025)

  Changed paths:
    M llvm/test/Transforms/SeparateConstOffsetFromGEP/AMDGPU/preserve-inbounds.ll

  Log Message:
  -----------
  Simplify test case and add more


Compare: https://github.com/llvm/llvm-project/compare/cd1072024db9...4ab790dd1f2c

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