The Epiphany E16 (Parallella board) backend, originally based on the AArch64 backend.

Current version is based on [https://jonathan2251.github.io/lbd]

• Download LLVM 3.9.X source
• Clone repo into ./lib/Target dir
• Apply LLVM_Epiphany.patch to your source dir
• Create dir llvm-build somewhere outside of the current dir, cd into it and run cmake /path/to/llvm-source
• Adjust cmake config, e.g. by using ccmake
• Build

• Compile C code into LLVM IR using Clang (-emit-llvm option)
• Run llc -march epiphany -mcpu E16 -O2 -filetype obj FILE.ll -o FILE.o to get the relocatable object file
• Link it with e-gcc

• Asm and binary generation for most of the simple integer operations
• Branch optimization
• Register allocation optimization (-O2)

• Strings
• 64-bit types
• Floating point arithmetics (partially works)
• External library calls