[llvm-bugs] [Bug 44884] New: Debug information shows incorrect lexical scope for typedef.

[via llvm-bugs]

https://bugs.llvm.org/show_bug.cgi?id=44884

            Bug ID: 44884
           Summary: Debug information shows incorrect lexical scope for
                    typedef.
           Product: libraries
           Version: trunk
          Hardware: PC
                OS: All
            Status: NEW
          Severity: enhancement
          Priority: P
         Component: DebugInfo
          Assignee: unassignedbugs at nondot.org
          Reporter: international.phantom at gmail.com
                CC: jdevlieghere at apple.com, keith.walker at arm.com,
                    llvm-bugs at lists.llvm.org,
                    paul_robinson at playstation.sony.com

Given the following test case:

//------------------------------------------------------------
// typedef.cpp
//------------------------------------------------------------

int bar(float Input) { return (int)Input; }

unsigned foo(char Param) {
  typedef int INT;
  INT Value = Param;
  {
    typedef float FLOAT;
    {
      FLOAT Added = Value + Param;
      Value = bar(Added);
    }
  }
  return Value + Param;
}

//------------------------------------------------------------

Using the following command line options to generate debug info
(DWARF) and (COFF):

clang -c -g -O0 typedef.cpp -o typedef.o
clang -c -g -O0 typedef.cpp -o typedef-coff.o -gcodeview
--target=x86_64-windows

Looking at the output generated by llvm-dwarfdump and llvm-diva,
the debug info shows the typedefs 'INT'and 'FLOAT' to be at the same lexical
scope (function scope).

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