llvm-snes

Let's give this another try with LLVM 15.0.0.7. Attempting to add a SNES backend target to LLVM, then eventually add a driver using clang.

Recommended build steps:

mkdir build

cd build

cmake -DLLVM_ENABLE_PROJECTS='clang;clang-tools-extra' -DLLVM_TARGETS_TO_BUILD=SNES -DCMAKE_BUILD_TYPE=Debug -DLLVM_OPTIMIZED_TABLEGEN=On ../llvm

Set -DLLVM_TARGETS_TO_BUILD to desired targets.

Current Status

• SNES target added to backend, but it's currently just a copy of the Sparc target with a bunch of changes to get the code to build. None of the binaries generated are functionally correct.

To Do:

• Figure out what object format for SNES.
• Add actual TD files.