build.zig                     | 15 +++---
 lib/std/Target.zig            |  3 +-
 lib/std/Target/wasm.zig       | 20 +++++++
 src/Compilation.zig           |  5 --
 src/arch/wasm/CodeGen.zig     | 48 +++++++++++++++++
 src/link/Wasm.zig             | 41 ++++++++++++--
 stage1/wasm2c.c               | 93 +++++++++++++++++++++++++++++++-
 tools/update_cpu_features.zig | 21 ++++++++
 8 files changed, 226 insertions(+), 20 deletions(-)