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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@18914 91177308-0d34-0410-b5e6-96231b3b80d8
LLEE: (LL)VM (E)xecution (E)nvironment This tool presents a virtual execution environment for LLVM programs. By preloading a shared object which defines a custom execve() function, we can execute bytecode files with the JIT directly, without the user ever thinking about it. Thus, a user can freely run any program, native or LLVM bytecode, transparently, and without even being aware of it. To use LLEE, run `llee <native_program>'; a good choice is a shell. Anything started within that program will be affected by the execve() replacement.