[llvm-bugs] [Bug 31743] New: YAML fails to round trip strings with \01 in them, the escape LLVM uses to avoid name IR mangling

[via llvm-bugs]

https://llvm.org/bugs/show_bug.cgi?id=31743

            Bug ID: 31743
           Summary: YAML fails to round trip strings with \01 in them, the
                    escape LLVM uses to avoid name IR mangling
           Product: libraries
           Version: trunk
          Hardware: PC
                OS: Windows NT
            Status: NEW
          Severity: normal
          Priority: P
         Component: Support Libraries
          Assignee: unassignedbugs at nondot.org
          Reporter: rnk at google.com
                CC: llvm-bugs at lists.llvm.org
    Classification: Unclassified

This prevents llc from parsing any MIR targeting the Microsoft C++ ABI.

Steps to reproduce:

$ echo 'void f() {}' | clang -cc1 -triple x86_64-windows-msvc -x c++ -
-emit-llvm | llc -stop-after branch-folder -o t.mir
$ llc t.mir
error: YAML:21:20: Unrecognized character while tokenizing.
name:            '?f@@YAXXZ'
                   ^

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