fix exception handling for TargetMachine
add autoselect ELF generation for MCJIT
ensure MCJIT ELF autoselect works
add no-signed-wrap and no-unsigned-wrap flags to IRBuilder
add exact flag to IRBuilder
add neg nuw nsw
add conda build script
add chrpath
add percent python
charpath just for linux
dislabe MCJIT tests for LLVM3.2
begin low-level runtime implementation
high version number
add sdivmod;
improve build system;
add div64 and mod64
disable float div/mod test temporarily
Merge branch 'llrt'
add IR files in setup.py
llvm3.3 has a different TargetTransformInfo
fix x86 arch type for LLRT