src/arch/x86_64/CodeGen.zig | 163 ++++++++++++++-----
 src/arch/x86_64/Emit.zig    | 276 ++++++++++++++++----------------
 src/arch/x86_64/Mir.zig     |  13 ++
 test/behavior.zig           |   2 +-
 test/behavior/truncate.zig  |  19 +++
 5 files changed, 293 insertions(+), 180 deletions(-)