[all-commits] [llvm/llvm-project] 8d3ab9: Properly support LLVM_ENABLE_LLD on Windows

[serge-sans-paille via All-commits]

  Branch: refs/heads/main
  Home:   https://github.com/llvm/llvm-project
  Commit: 8d3ab9dfc4d49062e045d6d5db419975b81da7e4
      https://github.com/llvm/llvm-project/commit/8d3ab9dfc4d49062e045d6d5db419975b81da7e4
  Author: serge-sans-paille <sguelton at mozilla.com>
  Date:   2022-12-22 (Thu, 22 Dec 2022)

  Changed paths:
    M llvm/cmake/modules/HandleLLVMOptions.cmake

  Log Message:
  -----------
  Properly support LLVM_ENABLE_LLD on Windows

Currently, setting -DLLVM_ENABLE_LLD=ON on windows also requires setting
-DCMAKE_LINKER=lld-link.exe. This is both misleading and redundant.

Fix this by trying to find llvm-link.exe when -DLLVM_ENABLE_LLD=ON is
set and CMAKE_LINKER is not, and aborting otherwise.

Differential Revision: https://reviews.llvm.org/D140534