[all-commits] [llvm/llvm-project] 754ff0: [TableGen][RISCV] Use getAllDerivedDefinitionsIfDe...

[Alex Bradbury via All-commits]

  Branch: refs/heads/main
  Home:   https://github.com/llvm/llvm-project
  Commit: 754ff0f54a4b09a8e4b00783475c51f66b949b66
      https://github.com/llvm/llvm-project/commit/754ff0f54a4b09a8e4b00783475c51f66b949b66
  Author: Alex Bradbury <asb at igalia.com>
  Date:   2024-05-13 (Mon, 13 May 2024)

  Changed paths:
    M llvm/utils/TableGen/RISCVTargetDefEmitter.cpp

  Log Message:
  -----------
  [TableGen][RISCV] Use getAllDerivedDefinitionsIfDefined in RISCVTargetDefEmitter (#91941)

getAllDerivedDefinitions produces a fatal error if there are no
definitions. In practice this isn't much of a problem for
llvm/lib/Target/RISCV/*.td where it's hard to imagine not having at
least one of the required defitions. But it limits our ability to
structure and maintain tests (which is how I came across this issue).

This commit moves to using getAllDerivedDefinitionsIfDefined and aims to
skip emission of data structures that make no sense if no definitions
were found.



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