[LLVMbugs] [Bug 2417] New: clang emits wrong bitcode with initialization of a global variable with a static function ptr

[bugzilla-daemon at cs.uiuc.edu]

http://llvm.org/bugs/show_bug.cgi?id=2417

           Summary: clang emits wrong bitcode with initialization of a
                    global variable with a static function ptr
           Product: clang
           Version: unspecified
          Platform: PC
        OS/Version: All
            Status: NEW
          Severity: normal
          Priority: P2
         Component: LLVM Codegen
        AssignedTo: unassignedbugs at nondot.org
        ReportedBy: nunoplopes at sapo.pt
                CC: llvmbugs at cs.uiuc.edu


clang emits wrong bitcode with initialization of a global variable with a
static function pointer.

the error is:
Global is external, but doesn't have external or dllimport or weak linkage!
i32 (...)* @zm_activate_zlib
invalid linkage type for function declaration
i32 (...)* @zm_activate_zlib
Broken module found, compilation aborted!

I don't know much about LLVM's bitcode, but maybe a static function must have
external linkage when it's referenced by a global symbol. This seems to be what
llvm-gcc does..


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