[LLVMbugs] [Bug 7940] New: Using -std=c++98 with Clang causes mangled identifiers in resolution errors

[bugzilla-daemon at llvm.org]

http://llvm.org/bugs/show_bug.cgi?id=7940

           Summary: Using -std=c++98 with Clang causes mangled identifiers
                    in resolution errors
           Product: new-bugs
           Version: trunk
          Platform: PC
        OS/Version: Linux
            Status: NEW
          Severity: normal
          Priority: P
         Component: new bugs
        AssignedTo: unassignedbugs at nondot.org
        ReportedBy: llvmbugs at contacts.eelis.net
                CC: llvmbugs at cs.uiuc.edu


If I do:

  echo "void f(); int main(){ f(); }" |
    clang -cc1 -emit-llvm-bc -std=c++98 | lli

I get an error in which the name of the function is mangled:

  LLVM ERROR: Program used external function '_Z1fv' which could not be
resolved!

When I omit the -std=c++98, I get the nicer error:

  LLVM ERROR: Program used external function 'f' which could not be resolved!

It seems a bit weird (and undesirable) for -std=c++98 to have this adverse
effect.

I'm using Clang r111113.

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