040000 tree 0f8e2a600b110aabbcb143faeda473629e85c0aa	asm
100644 blob 939487ca77d490cd5b3b13675c3aa883caf7902c	stack.cc
100644 blob a46e6e660ed76d7a7c87d84ba93eb2cb66a8b11b	stack.h
100644 blob bda562ff5b44f62b5dce9748944a5f7c5381d61c	worklist.cc
100644 blob e2d33616ad597ec8a042217dfb388cd68223847d	worklist.h