[all-commits] [llvm/llvm-project] 0c80b5: Some updates/fixes to the creduce script.

[Amy Huang via All-commits]

  Branch: refs/heads/master
  Home:   https://github.com/llvm/llvm-project
  Commit: 0c80b542d38b4819809c600e71a6997a9b4e4294
      https://github.com/llvm/llvm-project/commit/0c80b542d38b4819809c600e71a6997a9b4e4294
  Author: Amy Huang <akhuang at google.com>
  Date:   2020-11-12 (Thu, 12 Nov 2020)

  Changed paths:
    M clang/utils/creduce-clang-crash.py

  Log Message:
  -----------
  Some updates/fixes to the creduce script.

This was motivated by changes to llvm's `not --crash` disabling symbolization
but I ended up removing `not` from the script entirely because it
returns differently depending on  whether clang "crashes" or exits for some
other reason. The script had to choose between calling `not` and `not --crash`
and sometimes it was wrong.

The script also now disables symbolization when we don't read the stack
trace because symbolizing is kind of slow.

Differential Revision: https://reviews.llvm.org/D91372