[all-commits] [llvm/llvm-project] b24caf: [llvm][TableGen] Add a !initialized predicate to a...

[Krzysztof Drewniak via All-commits]

  Branch: refs/heads/main
  Home:   https://github.com/llvm/llvm-project
  Commit: b24caf3d2b91ad8b2b29d70fb69fce3c5347b9f4
      https://github.com/llvm/llvm-project/commit/b24caf3d2b91ad8b2b29d70fb69fce3c5347b9f4
  Author: Krzysztof Drewniak <Krzysztof.Drewniak at amd.com>
  Date:   2024-12-17 (Tue, 17 Dec 2024)

  Changed paths:
    M llvm/docs/TableGen/ProgRef.rst
    M llvm/include/llvm/TableGen/Record.h
    M llvm/lib/TableGen/Record.cpp
    M llvm/lib/TableGen/TGLexer.cpp
    M llvm/lib/TableGen/TGLexer.h
    M llvm/lib/TableGen/TGParser.cpp
    A llvm/test/TableGen/initialized.td

  Log Message:
  -----------
  [llvm][TableGen] Add a !initialized predicate to allow testing for ? (#117964)

There are cases (like in an upcoming patch to MLIR's `Property` class)
where the ? value is a useful null value. However, existing predicates
make ti difficult to test if the value in a record one is operating is ?
or not.

This commit adds the !initialized predicate, which is 1 on concrete,
non-? values and 0 on ?.

---------

Co-authored-by: Akshat Oke <Akshat.Oke at amd.com>



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