How to generate Object Code for implemeted assembly vecto instructions

ok i want to emit binary code for the following implemented vector assembly instructions.

P_256B_LOAD_DWORD R_0_R2048b_0, pword ptr [rip + b]
P_256B_LOAD_DWORD R_0_R2048b_1, pword ptr [rip + c]
P_256B_VADD R_0_R2048b_0, R_0_R2048b_1, R_0_R2048b_0
P_256B_STORE_DWORD pword ptr [rip + a], R_0_R2048b_0

when i used the command: llc -x86-asm-syntax=intel -debug -p-enabled=true -filetype=obj sum-vec03.ll>objpon 2>&1
i am getting the following error:

********** COMPUTING STACKMAP LIVENESS: foo **********
Unknown immediate size
UNREACHABLE executed at /lib/Target/X86/MCTargetDesc/X86BaseInfo.h:574!
#0 0x00000000019d9fec llvm::sys::PrintStackTrace(llvm::raw_ostream&) /lib/Support/Unix/Signals.inc:402:11
#1 0x00000000019da4d9 PrintStackTraceSignalHandler(void*) /lib/Support/Unix/Signals.inc:466:1
#2 0x00000000019d8853 llvm::sys::RunSignalHandlers() /lib/Support/Signals.cpp:0:5
#3 0x00000000019da834 SignalHandler(int) /lib/Support/Unix/Signals.inc:256:1
#4 0x00007f6d08f79d10 __restore_rt (/lib/x86_64-linux-gnu/libpthread.so.0+0x10d10)
#5 0x00007f6d07f27267 gsignal (/lib/x86_64-linux-gnu/libc.so.6+0x35267)
#6 0x00007f6d07f28eca abort (/lib/x86_64-linux-gnu/libc.so.6+0x36eca)
#7 0x000000000195f6c0 LLVMInstallFatalErrorHandler /lib/Support/ErrorHandling.cpp:133:0
#8 0x0000000000c08966 llvm::X86II::getSizeOfImm(unsigned long) /lib/Target/X86/MCTargetDesc/X86BaseInfo.h:577:29
#9 0x0000000000c04c2a (anonymous namespace)::X86MCCodeEmitter::encodeInstruction(llvm::MCInst const&, llvm::raw_ostream&, llvm::SmallVectorImplllvm::MCFixup&, llvm::MCSubtargetInfo const&) const /lib/Target/X86/MCTargetDesc/X86MCCodeEmitter.cpp:1512:67
#10 0x00000000015884b3 llvm::MCELFStreamer::EmitInstToData(llvm::MCInst const&, llvm::MCSubtargetInfo const&) /lib/MC/MCELFStreamer.cpp:478:26
#11 0x00000000015aadc0 llvm::MCObjectStreamer::EmitInstruction(llvm::MCInst const&, llvm::MCSubtargetInfo const&) /lib/MC/MCObjectStreamer.cpp:245:5
#12 0x00000000007a036b llvm::X86AsmPrinter::EmitAndCountInstruction(llvm::MCInst&) /lib/Target/X86/X86MCInstLower.cpp:106:3
#13 0x00000000007a32dc llvm::X86AsmPrinter::EmitInstruction(llvm::MachineInstr const*) /lib/Target/X86/X86MCInstLower.cpp:1738:1
#14 0x0000000000dde226 llvm::AsmPrinter::EmitFunctionBody() /lib/CodeGen/AsmPrinter/AsmPrinter.cpp:943:11
#15 0x0000000000796e81 llvm::X86AsmPrinter::runOnMachineFunction(llvm::MachineFunction&) /lib/Target/X86/X86AsmPrinter.cpp:73:3
#16 0x000000000104d441 llvm::MachineFunctionPass::runOnFunction(llvm::Function&) /lib/CodeGen/MachineFunctionPass.cpp:62:8
#17 0x00000000014766bf llvm::FPPassManager::runOnFunction(llvm::Function&) /lib/IR/LegacyPassManager.cpp:1513:27
#18 0x00000000014769d5 llvm::FPPassManager::runOnModule(llvm::Module&) /lib/IR/LegacyPassManager.cpp:1534:16
#19 0x000000000147716a (anonymous namespace)::MPPassManager::runOnModule(llvm::Module&) /lib/IR/LegacyPassManager.cpp:1590:27
#20 0x0000000001476c96 llvm::legacy::PassManagerImpl::run(llvm::Module&) /lib/IR/LegacyPassManager.cpp:1693:16
#21 0x0000000001477681 llvm::legacy::PassManager::run(llvm::Module&) /lib/IR/LegacyPassManager.cpp:1724:3
#22 0x000000000076bbde compileModule(char**, llvm::LLVMContext&) /tools/llc/llc.cpp:530:42
#23 0x000000000076a0c9 main /tools/llc/llc.cpp:285:13
#24 0x00007f6d07f12a40 __libc_start_main (/lib/x86_64-linux-gnu/libc.so.6+0x20a40)
#25 0x0000000000769b99 _start (/bin/llc+0x769b99)
Stack dump:
0. Program arguments: /bin/llc -x86-asm-syntax=intel -debug -p-enabled=true -filetype=obj sum-vec03.ll

  1. Running pass ‘Function Pass Manager’ on module ‘sum-vec03.ll’.
  2. Running pass ‘X86 Assembly Printer’ on function ‘@foo

What should I do? Please help.