[all-commits] [llvm/llvm-project] 892c10: Compiler: Remove empty fallback definition for LLV...

[Duncan P. N. Exon Smith via All-commits]

  Branch: refs/heads/main
  Home:   https://github.com/llvm/llvm-project
  Commit: 892c104fb71b86dc6399e36a82ae920e00ccae17
      https://github.com/llvm/llvm-project/commit/892c104fb71b86dc6399e36a82ae920e00ccae17
  Author: Duncan P. N. Exon Smith <dexonsmith at apple.com>
  Date:   2022-03-21 (Mon, 21 Mar 2022)

  Changed paths:
    M llvm/include/llvm/Support/Compiler.h

  Log Message:
  -----------
  Compiler: Remove empty fallback definition for LLVM_BUILTIN_UNREACHABLE

`llvm_unreachable()` and `LLVM_ASSUME_ALIGNED` use
`defined(LLVM_BUILTIN_UNREACHABLE)` to check whether it has a
definition. Remove the fallback added in 26827337dff26ba3 (as a drive-by
when updating the GCC logic) and add a comment to prevent future
mistakes.

Differential Revision: https://reviews.llvm.org/D122167