src/AstGen.zig                 | 102 ++++------
 src/Sema.zig                   | 331 ++++++++++++++++++++------------
 src/Zir.zig                    | 272 ++++++++++++--------------
 src/print_zir.zig              | 125 +++---------
 src/value.zig                  |   2 +-
 test/behavior/union.zig        |  31 +++
 test/behavior/union_stage1.zig |  31 ---
 test/stage2/cbe.zig            |   2 +-
 8 files changed, 422 insertions(+), 474 deletions(-)