[all-commits] [llvm/llvm-project] ca8dbd: [llvm-exegesis] Add error for subprocess and dummy...

[Aiden Grossman via All-commits]

  Branch: refs/heads/main
  Home:   https://github.com/llvm/llvm-project
  Commit: ca8dbdc12a72c35fc1832476c5d5836058ae224c
      https://github.com/llvm/llvm-project/commit/ca8dbdc12a72c35fc1832476c5d5836058ae224c
  Author: Aiden Grossman <agrossman154 at yahoo.com>
  Date:   2023-09-05 (Tue, 05 Sep 2023)

  Changed paths:
    A llvm/test/tools/llvm-exegesis/X86/dummy-perf-counters-subprocess.s
    M llvm/tools/llvm-exegesis/llvm-exegesis.cpp

  Log Message:
  -----------
  [llvm-exegesis] Add error for subprocess and dummy perf counters

When using the subprocess execution mode and dummy perf counters
currently, cryptic errors will be printed out related to not being able
to send the file descriptor through a socket. This patch prints out an
explicit message that this configuration isn't (currently) supported.

Reviewed By: courbet

Differential Revision: https://reviews.llvm.org/D157686