src/arch/x86_64/CodeGen.zig   | 733 +++++++++++++++++++++++---------
 src/arch/x86_64/Mir.zig       |  10 +-
 src/arch/x86_64/abi.zig       |  42 +-
 test/behavior/x86_64/math.zig | 330 ++++++++++++--
 4 files changed, 855 insertions(+), 260 deletions(-)