[llvm-dev] Running grep with LLI

[via llvm-dev]

Hi everyone,

I compiled grep with llvm-3.4(because consumer tool uses llvm3.4 bit code)
and generate bit-code for this.

When I am running with lli output is

pseudo instructions should be removed before code emission
UNREACHABLE executed at
/home/awanish/llvm/llvm-3.4.2/lib/Target/X86/X86CodeEmitter.cpp:1176!
0  libLLVM-3.4.so  0x00007f1250f655d5
llvm::sys::PrintStackTrace(_IO_FILE*) + 37
1  libLLVM-3.4.so  0x00007f1250f65a23
2  libpthread.so.0 0x00007f124fffd330
3  libc.so.6       0x00007f124f011c37 gsignal + 55
4  libc.so.6       0x00007f124f015028 abort + 328
5  libLLVM-3.4.so  0x00007f1250f5218c llvm::llvm_unreachable_internal(char
const*, char const*, unsigned int) + 444
6  libLLVM-3.4.so  0x00007f12510624f2
7  libLLVM-3.4.so  0x00007f125105f3a2
8  libLLVM-3.4.so  0x00007f125087b6ec
llvm::MachineFunctionPass::runOnFunction(llvm::Function&) + 124
9  libLLVM-3.4.so  0x00007f1250a46d9a
llvm::FPPassManager::runOnFunction(llvm::Function&) + 362
10 libLLVM-3.4.so  0x00007f1250a464fe
llvm::legacy::FunctionPassManagerImpl::run(llvm::Function&) + 238
11 libLLVM-3.4.so  0x00007f1250a4639d
llvm::legacy::FunctionPassManager::run(llvm::Function&) + 93
12 libLLVM-3.4.so  0x00007f1250bca1dd
llvm::JIT::runJITOnFunctionUnlocked(llvm::Function*, llvm::MutexGuard
const&) + 45
13 libLLVM-3.4.so  0x00007f1250bca435
llvm::JIT::getPointerToFunction(llvm::Function*) + 261
14 lli             0x0000000000409f95 main + 4437
15 libc.so.6       0x00007f124effcf45 __libc_start_main + 245
16 lli             0x00000000004069bd
Stack dump:
0.    Program arguments: lli kleegrep.bc
1.    Running pass 'X86 Machine Code Emitter' on function '@main'
Aborted (core dumped)

Can anyone help me in debugging this. I am doing wrong in bit-code
generation phase or in execution.


-- 
Thanks and Regards
Awanish Pandey
PhD, CSE
IIT Kanpur