I am unable to compile klee with llvm2.6 during the make process in Ubuntu. The 
following is the message I received before it stopped execution.

llvm[2]: Compiling klee_div_zero_check.ll to klee_div_zero_check.bc for Release 
build (bytecode)
/home/xiangwen/llvm/llvm-2.6/Release/bin/llvm-as: 
/home/xiangwen/klee-nush/runtime/Intrinsic/Release/klee_div_zero_check.ll:11:25:
 error: expected instruction opcode
  %0 = icmp eq i64 %z, 0, !dbg !0                 ; <i1> [#uses=1]
                        ^
/home/xiangwen/llvm/llvm-2.6/Release/bin/opt: Invalid bitcode signature
make[2]: *** 
[/home/xiangwen/klee-nush/runtime/Intrinsic/Release/klee_div_zero_check.bc] 
Error 1
make[2]: Leaving directory `/home/xiangwen/klee-nush/runtime/Intrinsic'
make[1]: *** [Intrinsic/.makeall] Error 2
make[1]: Leaving directory `/home/xiangwen/klee-nush/runtime'
make: *** [all] Error 1

Thank you

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