[all-commits] [llvm/llvm-project] ef4b9c: Fix crash while printing MMO target flags

Stanislav Mekhanoshin via All-commits all-commits at lists.llvm.org
Wed Sep 14 17:30:11 PDT 2022


  Branch: refs/heads/main
  Home:   https://github.com/llvm/llvm-project
  Commit: ef4b9c33f5dd096a4d7cd03654c17492f3802d89
      https://github.com/llvm/llvm-project/commit/ef4b9c33f5dd096a4d7cd03654c17492f3802d89
  Author: Stanislav Mekhanoshin <Stanislav.Mekhanoshin at amd.com>
  Date:   2022-09-14 (Wed, 14 Sep 2022)

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

  Log Message:
  -----------
  Fix crash while printing MMO target flags

MachineMemOperand::print can dereference a NULL pointer if TII
is not passed from the printMemOperand. This does not happen while
dumping the DAG/MIR from llc but crashes the debugger if a dump()
method is called from gdb.

Differential Revision: https://reviews.llvm.org/D133903




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