src/all_types.hpp              | 13 +++++
 src/codegen.cpp                |  2 +
 src/ir.cpp                     | 90 +++++++++++++++++++++++++++++---
 src/ir_print.cpp               | 14 +++++
 test/stage1/behavior/union.zig | 37 ++++++++++++-
 5 files changed, 148 insertions(+), 8 deletions(-)