[all-commits] [llvm/llvm-project] f1a3ab: [clang] Add a command line flag for the Machine Fu...

[Snehasish Kumar via All-commits]

  Branch: refs/heads/master
  Home:   https://github.com/llvm/llvm-project
  Commit: f1a3ab904439a63b21ba1c4521765c46630687c6
      https://github.com/llvm/llvm-project/commit/f1a3ab904439a63b21ba1c4521765c46630687c6
  Author: Snehasish Kumar <snehasishk at google.com>
  Date:   2020-09-15 (Tue, 15 Sep 2020)

  Changed paths:
    M clang/include/clang/Basic/CodeGenOptions.def
    M clang/include/clang/Driver/Options.td
    M clang/lib/CodeGen/BackendUtil.cpp
    M clang/lib/Driver/ToolChains/Clang.cpp
    M clang/lib/Frontend/CompilerInvocation.cpp
    A clang/test/Driver/fsplit-machine-functions.c

  Log Message:
  -----------
  [clang] Add a command line flag for the Machine Function Splitter.

This patch adds a command line flag for the machine function splitter
(added in rG94faadaca4e1).

-fsplit-machine-functions
Split machine functions using profile information (x86 ELF). On
other targets an error is emitted. If profile information is not
provided a warning is emitted notifying the user that profile
information is required.

Differential Revision: https://reviews.llvm.org/D87047