[all-commits] [llvm/llvm-project] c04eab: [Flang] Use find_program() to find clang-tblgen

[Nikita Popov via All-commits]

  Branch: refs/heads/main
  Home:   https://github.com/llvm/llvm-project
  Commit: c04eab8c78e517210c7641551ec008b09bfe20d0
      https://github.com/llvm/llvm-project/commit/c04eab8c78e517210c7641551ec008b09bfe20d0
  Author: Nikita Popov <npopov at redhat.com>
  Date:   2022-08-29 (Mon, 29 Aug 2022)

  Changed paths:
    M clang/CMakeLists.txt
    M flang/docs/CMakeLists.txt

  Log Message:
  -----------
  [Flang] Use find_program() to find clang-tblgen

There are two scenarios here:

1. Standalone flang build, where we use an installed clang-tblgen
   binary. We need to use find_package() to find it.
2. Combined build of clang and flang, where we want to use the
   path specified in CLANG_TABLEGEN_EXE during the clang build --
   however, this variable was previously not exported.

The new implementation matches what is done for mlir-tblgen.

Differential Revision: https://reviews.llvm.org/D131475