Implement FNeg operators.
Implement unordered comparisons.
Use CmpInst::isUnsigned.
Eliminate temporary std::strings.
Use internal name linkage.
Eliminate more temporary std::strings.
Simply handling of llvm_dbg_value.
Fix a printf format warning.
Merge pull request #8 from sunfishcode/master

Here are a few patches that I made while getting started with the code.