build.zig                             |   5 +
 lib/std/atomic.zig                    |   2 +-
 lib/std/heap/ArenaAllocator.zig       | 632 ++++++++++++++++++++++++++------
 lib/std/heap/FixedBufferAllocator.zig |  82 ++++-
 src/codegen/llvm.zig                  |   4 +-
 test/tests.zig                        |   2 +
 6 files changed, 592 insertions(+), 135 deletions(-)