src/arch/x86_64/CodeGen.zig             | 951 ++++++++++++++++++++++++--------
 src/arch/x86_64/Encoding.zig            |  36 +-
 src/arch/x86_64/Lower.zig               |   7 +
 src/arch/x86_64/Mir.zig                 |  28 +
 src/arch/x86_64/encoder.zig             |  31 +-
 src/arch/x86_64/encodings.zig           |  55 ++
 src/codegen.zig                         |  27 +-
 test/behavior/bitcast.zig               |   2 -
 test/behavior/bugs/13128.zig            |   1 -
 test/behavior/eval.zig                  |   2 -
 test/behavior/floatop.zig               |   1 -
 test/behavior/math.zig                  |   2 -
 test/behavior/maximum_minimum.zig       |   6 +-
 test/behavior/saturating_arithmetic.zig |   2 -
 test/behavior/truncate.zig              |   1 -
 test/behavior/vector.zig                |   1 -
 test/behavior/widening.zig              |   1 -
 17 files changed, 861 insertions(+), 293 deletions(-)