I have a project I'm trying to compile with alchemy. It will compile .o and .a files, but when trying to create a .swc, it will fail. It appears to crash with this error:

g++ -swc -o mylib.swc my-flex-interface.cpp mylib.a
    Cannot yet select: 0x279c810: ch,flag = AVM2ISD::CALL - A call instruction 0x279c7a0, 0x29c4350
    0   llc                                 0x00636dfe _ZNSt8_Rb_treeIN4llvm3sys4PathES2_St9_IdentityIS2_ESt4lessIS2_ESaIS2_EE13insert_uniqueERKS2_ + 6078
    1   llc                                 0x006373a2 _ZNSt8_Rb_treeIN4llvm3sys4PathES2_St9_IdentityIS2_ESt4lessIS2_ESaIS2_EE13insert_uniqueERKS2_ + 7522
    2   libSystem.B.dylib                   0x9530942b _sigtramp + 43
    3   ???                                 0xffffffff 0x0 + 4294967295
    4   libSystem.B.dylib                   0x953968e5 raise + 26
    5   libSystem.B.dylib                   0x953ac99c abort + 93
    6   llc                                 0x002f4fe0 _ZN98_GLOBAL__N__Volumes_data_dev_FlaCC_llvm_2.1_lib_Target_AVM2_AVM2ISelDAGToDAG.cpp_00000000_F04616B616AVM2DAGToDAGISel6Emit_7ERKN4llvm9SDOperandEj + 0
    7   llc                                 0x002f8e1b _ZN98_GLOBAL__N__Volumes_data_dev_FlaCC_llvm_2.1_lib_Target_AVM2_AVM2ISelDAGToDAG.cpp_00000000_F04616B616AVM2DAGToDAGISel10SelectCodeEN4llvm9SDOperandE + 2219
    8   llc                                 0x002fa193 _ZN98_GLOBAL__N__Volumes_data_dev_FlaCC_llvm_2.1_lib_Target_AVM2_AVM2ISelDAGToDAG.cpp_00000000_F04616B616AVM2DAGToDAGISel10SelectRootEN4llvm9SDOperandE + 819
    9   llc                                 0x002e6a2c _ZN4llvm19X86_64TargetMachineD0Ev + 65116
    10  llc                                 0x003de4ca _ZN4llvm11StoreSDNodeD1Ev + 1610
    11  llc                                 0x0040d3fe _ZN4llvm11StoreSDNodeD1Ev + 193918
    12  llc                                 0x0040f92e _ZN4llvm11StoreSDNodeD1Ev + 203438
    13  llc                                 0x005d1926 _ZN4llvm12FunctionPassD1Ev + 20998
    14  llc                                 0x005d1f3a _ZN4llvm12FunctionPassD1Ev + 22554
    15  llc                                 0x005d20c5 _ZN4llvm12FunctionPassD1Ev + 22949
    16  llc                                 0x00002e44 0x0 + 11844
    17  llc                                 0x00001f36 0x0 + 7990
    18  ???                                 0x00000006 0x0 + 6
    make[2]: *** [src/app/alchemy/sonic.swc] Error 6
    make[1]: *** [src/app/alchemy/CMakeFiles/alchemy.dir/all] Error 2
    make: *** [all] Error 2

I'm not familiar enough with LLVM (which Alchemy uses under the hood) to figure out what this error means. Any ideas?