[all-commits] [llvm/llvm-project] 9adf30: llvm-reduce: Change function return types if funct...

[Matt Arsenault via All-commits]

  Branch: refs/heads/users/arsenm/llvm-reduce/rewrite-function-return-types-no-call-uses
  Home:   https://github.com/llvm/llvm-project
  Commit: 9adf304e5f1a94ba0555f58cd991c2bc21d61127
      https://github.com/llvm/llvm-project/commit/9adf304e5f1a94ba0555f58cd991c2bc21d61127
  Author: Matt Arsenault <Matthew.Arsenault at amd.com>
  Date:   2025-05-02 (Fri, 02 May 2025)

  Changed paths:
    M llvm/test/tools/llvm-reduce/reduce-instructions-to-return.ll
    A llvm/test/tools/llvm-reduce/reduce-values-to-return-new-return-type.ll
    M llvm/tools/llvm-reduce/deltas/ReduceValuesToReturn.cpp

  Log Message:
  -----------
  llvm-reduce: Change function return types if function is not called

Extend the early return on value reduction to mutate the function return
type if the function has no call uses. This could be generalized to rewrite
cases where all callsites are used, but it turns out that complicates the
visitation order given we try to compute all opportunities up front.

This is enough to cleanup the common case where we end up with one
function with a return of an uninteresting constant.


  Commit: 422a1bb4854bf8b292a758f5ed7f97168f5afe3f
      https://github.com/llvm/llvm-project/commit/422a1bb4854bf8b292a758f5ed7f97168f5afe3f
  Author: Matt Arsenault <Matthew.Arsenault at amd.com>
  Date:   2025-05-02 (Fri, 02 May 2025)

  Changed paths:
    M llvm/test/tools/llvm-reduce/reduce-values-to-return-new-return-type.ll
    M llvm/tools/llvm-reduce/deltas/ReduceValuesToReturn.cpp

  Log Message:
  -----------
  Fix multiple return case


  Commit: 032d052f12439a2524433155ee1582063054c68e
      https://github.com/llvm/llvm-project/commit/032d052f12439a2524433155ee1582063054c68e
  Author: Matt Arsenault <Matthew.Arsenault at amd.com>
  Date:   2025-05-02 (Fri, 02 May 2025)

  Changed paths:
    M llvm/test/tools/llvm-reduce/reduce-values-to-return-new-return-type.ll
    M llvm/tools/llvm-reduce/deltas/ReduceValuesToReturn.cpp

  Log Message:
  -----------
  Fix return attributes


  Commit: 6838bdc0dbab4da4c8107753f4f4c9bc9c38d40f
      https://github.com/llvm/llvm-project/commit/6838bdc0dbab4da4c8107753f4f4c9bc9c38d40f
  Author: Matt Arsenault <Matthew.Arsenault at amd.com>
  Date:   2025-05-02 (Fri, 02 May 2025)

  Changed paths:
    M llvm/test/tools/llvm-reduce/reduce-values-to-return-new-return-type.ll
    M llvm/tools/llvm-reduce/deltas/ReduceValuesToReturn.cpp

  Log Message:
  -----------
  Fix returned attr


  Commit: 07008f3a7941f709e4174ef44850a054ae3f45b0
      https://github.com/llvm/llvm-project/commit/07008f3a7941f709e4174ef44850a054ae3f45b0
  Author: Matt Arsenault <arsenm2 at gmail.com>
  Date:   2025-05-02 (Fri, 02 May 2025)

  Changed paths:
    M llvm/tools/llvm-reduce/deltas/ReduceValuesToReturn.cpp

  Log Message:
  -----------
  Update ReduceValuesToReturn.cpp


Compare: https://github.com/llvm/llvm-project/compare/19ec5ce9620d...07008f3a7941

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