[all-commits] [llvm/llvm-project] 5b342e: [RemoveDIs][DebugInfo] Check for null marker when ...

[Stephen Tozer via All-commits]

  Branch: refs/heads/main
  Home:   https://github.com/llvm/llvm-project
  Commit: 5b342e6041f8567a39354ae3c5346cf74b3bb84f
      https://github.com/llvm/llvm-project/commit/5b342e6041f8567a39354ae3c5346cf74b3bb84f
  Author: Stephen Tozer <stephen.tozer at sony.com>
  Date:   2024-02-19 (Mon, 19 Feb 2024)

  Changed paths:
    M llvm/lib/IR/AsmWriter.cpp
    A llvm/test/DebugInfo/dpvalue-print-nocrash.ll

  Log Message:
  -----------
  [RemoveDIs][DebugInfo] Check for null marker when printing DPValues (#82238)

The function to print DPValues currently tries to incorporate the
function it is part of, which is found through its marker; this means
when we try to print a DPValue with no marker, we dereference a nullptr.
We can print instructions without parents, and so the same should be
true for DPValues; this patch changes DPValue::print to check for a null
marker and avoid dereferencing it.

Fixes issue: https://github.com/llvm/llvm-project/issues/82230



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