[all-commits] [llvm/llvm-project] 12a1f1: [Pragma] Added support for GCC unroll/nounroll

[Dávid Bolvanský via All-commits]

  Branch: refs/heads/main
  Home:   https://github.com/llvm/llvm-project
  Commit: 12a1f1d9d7e4f7ce416d0602d18991973986dfb5
      https://github.com/llvm/llvm-project/commit/12a1f1d9d7e4f7ce416d0602d18991973986dfb5
  Author: Dávid Bolvanský <david.bolvansky at gmail.com>
  Date:   2021-04-17 (Sat, 17 Apr 2021)

  Changed paths:
    M clang/include/clang/Basic/AttrDocs.td
    M clang/lib/Parse/ParsePragma.cpp
    A clang/test/CodeGenCXX/pragma-gcc-unroll.cpp

  Log Message:
  -----------
  [Pragma] Added support for GCC unroll/nounroll

GCC 8 introduced these new pragmas to control loop unrolling. We should support them for compatibility reasons and the implementation itself requires few lines of code, since everything needed is already implemented for #pragma unroll/nounroll.