63c62bea3a
`enum Token` was 192 bytes (64-bit), as pointed out by pnkfelix; the only bloating variant being `INTERPOLATED(nonterminal)`. Updating `enum nonterminal` to use ~ where variants included big types, shrunk size_of(Token) to 32 bytes (64-bit). I am unsure if the `nt_ident` variant should have an indirection, with ast::ident being only 16 bytes (64-bit), but without this, enum Token would be 40 bytes. A dumb benchmark says that compilation time is unchanged, while peak memory usage for compiling std.rs is down 3% Before:: $ time ./x86_64-unknown-linux-gnu/stage1/bin/rustc --cfg stage1 src/libstd/std.rs 19.00user 0.39system 0:19.41elapsed 99%CPU (0avgtext+0avgdata 627820maxresident)k 0inputs+28896outputs (0major+228665minor)pagefaults 0swaps $ time ./x86_64-unknown-linux-gnu/stage1/bin/rustc -O --cfg stage1 src/libstd/std.rs 31.64user 0.34system 0:32.02elapsed 99%CPU (0avgtext+0avgdata 629876maxresident)k 0inputs+22432outputs (0major+229411minor)pagefaults 0swaps After:: $ time ./x86_64-unknown-linux-gnu/stage1/bin/rustc --cfg stage1 src/libstd/std.rs 19.07user 0.45system 0:19.55elapsed 99%CPU (0avgtext+0avgdata 609384maxresident)k 0inputs+28896outputs (0major+221997minor)pagefaults 0swaps $ time ./x86_64-unknown-linux-gnu/stage1/bin/rustc -O --cfg stage1 src/libstd/std.rs 31.90user 0.34system 0:32.28elapsed 99%CPU (0avgtext+0avgdata 612080maxresident)k 0inputs+22432outputs (0major+223726minor)pagefaults 0swaps |
||
---|---|---|
.. | ||
compiletest | ||
driver | ||
etc | ||
libextra | ||
librust | ||
librustc | ||
librustdoc | ||
librusti | ||
librustpkg | ||
libstd | ||
libsyntax | ||
libuv@dfae9c3e95 | ||
llvm@f67442eee2 | ||
rt | ||
rustllvm | ||
test | ||
README.txt | ||
snapshots.txt |
This is a preliminary version of the Rust compiler, libraries and tools Source layout: librustc/ The self-hosted compiler libstd/ The standard library (imported and linked by default) libextra/ The "extras" library (slightly more peripheral code) libsyntax/ The Rust parser and pretty-printer rt/ The runtime system rt/rust_*.cpp - The majority of the runtime services rt/isaac - The PRNG used for pseudo-random choices in the runtime rt/bigint - The bigint library used for the 'big' type rt/uthash - Small hashtable-and-list library for C, used in runtime rt/sync - Concurrency utils rt/util - Small utility classes for the runtime. rt/vg - Valgrind headers rt/msvc - MSVC support rt/linenoise - a readline-like line editing library test/ Testsuite test/compile-fail - Tests that should fail to compile test/run-fail - Tests that should compile, run and fail test/run-pass - Tests that should compile, run and succeed test/bench - Benchmarks and miscellanea test/pretty - Pretty-printer tests test/auxiliary - Dependencies of tests compiletest/ The test runner librustpkg/ The package manager and build system librusti/ The JIT REPL librustdoc/ The Rust API documentation tool llvm/ The LLVM submodule libuv/ The libuv submodule rustllvm/ LLVM support code libfuzzer/ A collection of fuzz testers etc/ Scripts, editor support, misc