build.zig                          |  53 +++---
 doc/langref.html.in                |  24 ++-
 lib/std/elf.zig                    |   1 +
 lib/std/fs.zig                     |  44 +++--
 lib/std/fs/test.zig                |  37 ++++
 lib/std/heap.zig                   |   5 +
 lib/std/heap/arena_allocator.zig   |   5 +-
 lib/std/mem.zig                    |  11 +-
 lib/std/os.zig                     |  99 ++++++++---
 lib/std/zig/system.zig             |   1 +
 src-self-hosted/codegen.zig        | 296 ++++++++++++++++++++------------
 src-self-hosted/codegen/x86_64.zig |  11 +-
 src-self-hosted/type.zig           |  70 ++++++++
 13 files changed, 474 insertions(+), 183 deletions(-)