[LLVMbugs] [Bug 1491] NEW: Type mismatch in module with global std::map

[bugzilla-daemon at cs.uiuc.edu]

http://llvm.org/bugs/show_bug.cgi?id=1491

           Summary: Type mismatch in module with global std::map
           Product: new-bugs
           Version: unspecified
          Platform: PC
        OS/Version: Linux
            Status: NEW
          Severity: normal
          Priority: P2
         Component: new bugs
        AssignedTo: unassignedbugs at nondot.org
        ReportedBy: maarten at treewalker.org


I compile this program to LLVM bytecode:

#include <map>
std::map<int, int> someMap;

Using this command line:

$ llvm-g++ -O2 --emit-llvm -o mapbug.bc -c mapbug.cc

Then when I try to use the resulting bytecode module, the LLVM tools will 
complain about it being invalid. For example:

$ llvm-link -f -o mapbug.linked.bc mapbug.bc
Global variable initializer type does not match global variable type!
"struct.std::map<int,int,std::less<int>,std::allocator<std::pair<const int, 
int> > >"* @someMap
Broken module found, compilation aborted!

This problem disappears if I remove "-O2" or replace it by "-O0".

I'm using LLVM 2.0 and its g++ front-end, compiled from source with GCC 4.1.3.



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