[all-commits] [llvm/llvm-project] c6252c: 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: c6252c5dc0d1326a139c73a75b2a7892d0670ad0
      https://github.com/llvm/llvm-project/commit/c6252c5dc0d1326a139c73a75b2a7892d0670ad0
  Author: Matt Arsenault <Matthew.Arsenault at amd.com>
  Date:   2025-04-02 (Wed, 02 Apr 2025)

  Changed paths:
    A llvm/test/tools/llvm-reduce/reduce-values-to-return-new-return-type.ll
    M llvm/test/tools/llvm-reduce/reduce-values-to-return.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: 75841c9d2c0abe4d75b0575088013b79a26c7b57
      https://github.com/llvm/llvm-project/commit/75841c9d2c0abe4d75b0575088013b79a26c7b57
  Author: Matt Arsenault <Matthew.Arsenault at amd.com>
  Date:   2025-04-02 (Wed, 02 Apr 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: 2af47b44da4217566fd6fed3d8784b68fbe22ce5
      https://github.com/llvm/llvm-project/commit/2af47b44da4217566fd6fed3d8784b68fbe22ce5
  Author: Matt Arsenault <Matthew.Arsenault at amd.com>
  Date:   2025-04-02 (Wed, 02 Apr 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: 54900733a4a81dc09e85e86c805190b60f550dc6
      https://github.com/llvm/llvm-project/commit/54900733a4a81dc09e85e86c805190b60f550dc6
  Author: Matt Arsenault <Matthew.Arsenault at amd.com>
  Date:   2025-04-02 (Wed, 02 Apr 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


Compare: https://github.com/llvm/llvm-project/compare/4baf45bdef2c...54900733a4a8

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