src/arch/x86_64/CodeGen.zig   | 642 +++++++++++++++++++-------------
 src/arch/x86_64/Encoding.zig  |  34 +-
 src/arch/x86_64/Lower.zig     |  49 +++
 src/arch/x86_64/Mir.zig       | 115 +++++-
 src/arch/x86_64/encodings.zig | 101 ++++-
 5 files changed, 651 insertions(+), 290 deletions(-)