[all-commits] [llvm/llvm-project] 623295: [MISched][scheduleDump] Use stable_sort to prevent...

[Francesco Petrogalli via All-commits]

  Branch: refs/heads/main
  Home:   https://github.com/llvm/llvm-project
  Commit: 623295a1d0cc8d0ace354b1b97959df49be8a86e
      https://github.com/llvm/llvm-project/commit/623295a1d0cc8d0ace354b1b97959df49be8a86e
  Author: Francesco Petrogalli <francesco.petrogalli at apple.com>
  Date:   2023-06-13 (Tue, 13 Jun 2023)

  Changed paths:
    M llvm/lib/CodeGen/MachineScheduler.cpp

  Log Message:
  -----------
  [MISched][scheduleDump] Use stable_sort to prevent test failures.

When building the compiler with -DLLVM_ENABLE_EXPENSIVE_CHECKS=ON,
sometimes resources that are dumped in scheduled traces gets reordered
even if they are booked in the same cycle. Using `stable_sort`
guarantees that such occasional reordering does not happen.

This change should fix failures like the one seen in
https://lab.llvm.org/buildbot/#/builders/16/builds/49592.

Reviewed By: RKSimon

Differential Revision: https://reviews.llvm.org/D152800