[PATCH] D150431: [lit] Add knob --run-prefix to allow developers to run LIT on a simulator when real machine is not available

[Kan Shengchen via Phabricator via llvm-commits]

skan added a comment.

In D150431#4339970 <https://reviews.llvm.org/D150431#4339970>, @pengfei wrote:

> We had a buildbot that run with sde before, though it was removed by D143552 <https://reviews.llvm.org/D143552>. I think current LLVM test-suite infrastructure should have supported sde already. Maybe @yinyangsx can help with your problem?

Great link! It seems the variable `USER_MODE_EMULATION=1` may help. Let me try.

  # litsupport/modules/timeit.py
  
  def _mutateCommandLine(context, commandline):
      timefile = context.tmpBase + ".time"
      config = context.config
      cmd = shellcommand.parse(commandline)
  
   
  
      if config.user_mode_emulation:
          # user_mode_emulation should be true if tests are being run via
          # user-mode emulation (e.g. Qemu) and thus the host version of timeit
          # should be used.
          timeit_name = "timeit"
      else:
          timeit_name = "timeit-target"


Repository:
  rG LLVM Github Monorepo

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  https://reviews.llvm.org/D150431/new/

https://reviews.llvm.org/D150431