[all-commits] [llvm/llvm-project] fc0626: [llc][MISched] Add `-misched-detail-resource-booki...

[Francesco Petrogalli via All-commits]

  Branch: refs/heads/main
  Home:   https://github.com/llvm/llvm-project
  Commit: fc06262c1c365777e71207b6a5de281cba927c96
      https://github.com/llvm/llvm-project/commit/fc06262c1c365777e71207b6a5de281cba927c96
  Author: Francesco Petrogalli <francesco.petrogalli at apple.com>
  Date:   2023-06-20 (Tue, 20 Jun 2023)

  Changed paths:
    M llvm/lib/CodeGen/MachineScheduler.cpp
    A llvm/test/CodeGen/AArch64/misched-detail-resource-booking-01.mir
    A llvm/test/CodeGen/AArch64/misched-detail-resource-booking-02.mir

  Log Message:
  -----------
  [llc][MISched] Add `-misched-detail-resource-booking` to llc.

The option `-misched-detail-resource-booking` prints the following
information every time the method
`SchedBoundary::getNextResourceCycle` is invoked:

1. counters of the resources that have already been booked;

2. the values returned by `getNextResourceCycle`, which is the next
available cycle in which a resource can be booked.

The method is useful to debug low-level checks inside the machine
scheduler that make decisions based on the values returned by
`getNextResourceCycle`.

Reviewed By: andreadb

Differential Revision: https://reviews.llvm.org/D153116