Core dump when compiling mesa.api.glVertex2i.ll with -unison flag

[romits800]

I get the following error when compiling the mesa.api.glVertex2i.ll benchmark (taken from the test folder of unison):

$ llc mesa.api.glVertex2i.ll -O2 -march=mips -mcpu=mips32 -unison
Pseudo opcode found in EmitInstruction()
UNREACHABLE executed at /home/romi/didaktoriko/unison/llvm/lib/Target/Mips/MipsAsmPrinter.cpp:202!
#0 0x0000000001bf4677 llvm::sys::PrintStackTrace(llvm::raw_ostream&) (/usr/local/bin/llc+0x1bf4677)
#1 0x0000000001bf49cf PrintStackTraceSignalHandler(void*) (/usr/local/bin/llc+0x1bf49cf)
#2 0x0000000001bf2e15 llvm::sys::RunSignalHandlers() (/usr/local/bin/llc+0x1bf2e15)
#3 0x0000000001bf3fbe SignalHandler(int) (/usr/local/bin/llc+0x1bf3fbe)
#4 0x00007f16e4238390 __restore_rt (/lib/x86_64-linux-gnu/libpthread.so.0+0x11390)
#5 0x00007f16e33d7428 gsignal /build/glibc-LK5gWL/glibc-2.23/signal/../sysdeps/unix/sysv/linux/raise.c:54:0
#6 0x00007f16e33d902a abort /build/glibc-LK5gWL/glibc-2.23/stdlib/abort.c:91:0
#7 0x0000000001b8bcfc bindingsErrorHandler(void*, std::__cxx11::basic_string<char, std::char_traits<char>, std::allocator<char> > const&, bool) (/usr/local/bin/llc+0x1b8bcfc)
#8 0x0000000000b7c394 llvm::MipsAsmPrinter::EmitInstruction(llvm::MachineInstr const*) (/usr/local/bin/llc+0xb7c394)
#9 0x00000000011ca250 llvm::AsmPrinter::EmitFunctionBody() (/usr/local/bin/llc+0x11ca250)
#10 0x0000000000b77db3 llvm::AsmPrinter::runOnMachineFunction(llvm::MachineFunction&) (/usr/local/bin/llc+0xb77db3)
#11 0x0000000000b7843c llvm::MipsAsmPrinter::runOnMachineFunction(llvm::MachineFunction&) (/usr/local/bin/llc+0xb7843c)
#12 0x00000000013976f5 llvm::MachineFunctionPass::runOnFunction(llvm::Function&) (/usr/local/bin/llc+0x13976f5)
#13 0x00000000017bb226 llvm::FPPassManager::runOnFunction(llvm::Function&) (/usr/local/bin/llc+0x17bb226)
#14 0x00000000017bb3bf llvm::FPPassManager::runOnModule(llvm::Module&) (/usr/local/bin/llc+0x17bb3bf)
#15 0x00000000017bb73a (anonymous namespace)::MPPassManager::runOnModule(llvm::Module&) (/usr/local/bin/llc+0x17bb73a)
#16 0x00000000017bbe6b llvm::legacy::PassManagerImpl::run(llvm::Module&) (/usr/local/bin/llc+0x17bbe6b)
#17 0x00000000017bc077 llvm::legacy::PassManager::run(llvm::Module&) (/usr/local/bin/llc+0x17bc077)
#18 0x0000000000b5684e compileModule(char**, llvm::LLVMContext&) (/usr/local/bin/llc+0xb5684e)
#19 0x0000000000b5537a main (/usr/local/bin/llc+0xb5537a)
#20 0x00007f16e33c2830 __libc_start_main /build/glibc-LK5gWL/glibc-2.23/csu/../csu/libc-start.c:325:0
#21 0x0000000000b51219 _start (/usr/local/bin/llc+0xb51219)
Stack dump:
0.	Program arguments: llc mesa.api.glVertex2i.ll -O2 -march=mips -mcpu=mips32 -unison 
1.	Running pass 'Function Pass Manager' on module 'mesa.api.glVertex2i.ll'.
2.	Running pass 'Mips Assembly Printer' on function '@glVertex2i'
Aborted (core dumped)

mesa-issue.tar.gz