[all-commits] [llvm/llvm-project] 128745: [PassManager] Add pretty stack entries before P->r...

[Florian Hahn via All-commits]

  Branch: refs/heads/main
  Home:   https://github.com/llvm/llvm-project
  Commit: 128745cc2681c284bc6d0150a319673a6d6e8424
      https://github.com/llvm/llvm-project/commit/128745cc2681c284bc6d0150a319673a6d6e8424
  Author: Florian Hahn <flo at fhahn.com>
  Date:   2022-03-09 (Wed, 09 Mar 2022)

  Changed paths:
    M llvm/include/llvm/IR/PassManager.h
    M llvm/include/llvm/Transforms/Scalar/LoopPassManager.h
    M llvm/lib/Analysis/CGSCCPassManager.cpp
    M llvm/lib/IR/PassManager.cpp
    M llvm/lib/Passes/PassBuilder.cpp
    M llvm/lib/Passes/PassRegistry.def
    M llvm/lib/Transforms/Scalar/LoopPassManager.cpp
    A llvm/test/Other/crash-cgscc.ll
    A llvm/test/Other/crash-function.ll
    A llvm/test/Other/crash-loop.ll
    A llvm/test/Other/crash-module.ll

  Log Message:
  -----------
  [PassManager] Add pretty stack entries before P->run() call.

This patch adds PrettyStackEntries before running passes. The entries
include the pass name and the IR unit the pass runs on.

The information is used the print additional information when a pass
crashes, including the name and a reference to the IR unit on which it
crashed. This is similar to the behavior of the legacy pass manager.

The improved stack trace now includes:

Stack dump:
0.	Program arguments: bin/opt -loop-vectorize -force-vector-width=4 crash.ll
1.	Running pass 'ModuleToFunctionPassAdaptor' on module 'crash.ll'
2.	Running pass 'LoopVectorizePass' on function '@a'

Reviewed By: aeubanks

Differential Revision: https://reviews.llvm.org/D120993