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bors 60076bb8f7 Auto merge of #59693 - nnethercote:64-bit-Spans, r=petrochenkov 
Increase `Span` from 4 bytes to 8 bytes.

This increases the size of some important types, such as `ast::Expr` and
`mir::Statement`. However, it drastically reduces how much the interner
is used, and the fields are more natural sizes that don't require bit
operations to extract.

As a result, instruction counts drop across a range of workloads, by as
much as 10% for `script-servo` incremental builds.

Peak memory usage goes up a little for some cases, but down by more for
some other cases -- as much as 18% for non-incremental builds of
`packed-simd`.

The commit also:
- removes the `repr(packed)`, because it has negligible effect, but can
  cause undefined behaviour;
- replaces explicit impls of common traits (`Copy`, `PartialEq`, etc.)
  with derived ones.

r? @petrochenkov
2019-04-14 08:55:16 +00:00
..
bootstrap Rollup merge of #59911 - pnkfelix:revert-pr-59401-to-fix-emit-stack-sizes-gc-sections-ld-gold-bug, r=alexcrichton 2019-04-14 00:39:50 +02:00
build_helper rustc: doc comments 2019-02-10 23:42:32 +00:00
ci Auto merge of #59886 - mati865:musl_toolchain, r=alexcrichton 2019-04-12 02:24:16 +00:00
doc Rollup merge of #59930 - kornelski:first-robots, r=GuillaumeGomez 2019-04-14 00:23:50 +02:00
etc rust-lldb: fix crash when printing empty string 2019-03-06 12:28:38 -05:00
grammar
liballoc Rollup merge of #59675 - SimonSapin:stable-alloc, r=alexcrichton 2019-04-14 00:23:25 +02:00
libarena Rollup merge of #59675 - SimonSapin:stable-alloc, r=alexcrichton 2019-04-14 00:23:25 +02:00
libcore Rollup merge of #59925 - solson:split_ascii_whitespace-docfix, r=Centril 2019-04-14 00:23:49 +02:00
libfmt_macros Deny internal lints on two more crates 2019-04-03 19:18:07 +02:00
libgraphviz Auto merge of #58051 - SimonSapin:str_escape, r=alexcrichton 2019-02-12 23:30:16 +00:00
libpanic_abort SGX target: fix panic = abort 2019-02-14 12:39:54 +05:30
libpanic_unwind Stabilize the alloc crate. 2019-04-12 20:07:30 +02:00
libproc_macro proc_macro: stop using LEB128 for RPC. 2019-04-09 21:05:15 +03:00
libprofiler_builtins Revert removed #![feature(nll)] 2019-02-10 16:13:30 +09:00
librustc Auto merge of #59693 - nnethercote:64-bit-Spans, r=petrochenkov 2019-04-14 08:55:16 +00:00
librustc_allocator Deny internal lints on non conflicting crates 2019-04-03 18:24:21 +02:00
librustc_apfloat Stabilize TryFrom and TryInto 2019-02-13 18:00:18 +01:00
librustc_asan Update cmake, cc and compiler_builtins for VS 2019 support 2019-04-10 21:17:31 +02:00
librustc_borrowck Deny internal lints on non conflicting crates 2019-04-03 18:24:21 +02:00
librustc_codegen_llvm Rollup merge of #59874 - michaelwoerister:pgo-updates-1, r=cramertj 2019-04-14 00:39:46 +02:00
librustc_codegen_ssa Rollup merge of #59874 - michaelwoerister:pgo-updates-1, r=cramertj 2019-04-14 00:39:46 +02:00
librustc_codegen_utils Deny internal lints on non conflicting crates 2019-04-03 18:24:21 +02:00
librustc_cratesio_shim librustc_cratesio_shim => 2018 2019-02-08 20:55:12 +09:00
librustc_data_structures Rollup merge of #59804 - Zoxc:cleaner-jobserver, r=alexcrichton 2019-04-14 00:23:34 +02:00
librustc_driver Rollup merge of #59680 - DevQps:document-rustc-z-flag, r=cramertj 2019-04-12 12:17:48 +02:00
librustc_errors Deny internal lints on non conflicting crates 2019-04-03 18:24:21 +02:00
librustc_fs_util rustc: doc comments 2019-02-10 23:42:32 +00:00
librustc_incremental Auto merge of #59517 - Zoxc:new-queries, r=oli-obk 2019-04-04 08:26:18 +00:00
librustc_interface Use measureme in self-profiler 2019-04-12 20:27:29 -04:00
librustc_lint Rollup merge of #59858 - mark-i-m:dup-matcher-bindings-3, r=Centril 2019-04-14 00:23:44 +02:00
librustc_llvm Revert removed #![feature(nll)] 2019-02-10 16:13:30 +09:00
librustc_lsan Update cmake, cc and compiler_builtins for VS 2019 support 2019-04-10 21:17:31 +02:00
librustc_macros Allow unused query arguments 2019-03-30 18:43:25 +01:00
librustc_metadata Clean up handling of -Zpgo-gen commandline option. 2019-04-11 14:50:32 +02:00
librustc_mir Rollup merge of #59796 - oli-obk:const_arg_ice, r=eddyb 2019-04-14 00:23:32 +02:00
librustc_msan Update cmake, cc and compiler_builtins for VS 2019 support 2019-04-10 21:17:31 +02:00
librustc_passes Deny internal lints on non conflicting crates 2019-04-03 18:24:21 +02:00
librustc_plugin Make meta-item API compatible with LocalInternedString::get soundness fix 2019-03-17 17:04:58 +03:00
librustc_privacy Deny internal lints on non conflicting crates 2019-04-03 18:24:21 +02:00
librustc_resolve Rollup merge of #59784 - davidtwco:issue-59764, r=estebank 2019-04-14 00:39:43 +02:00
librustc_save_analysis save-analysis: Simplify match arm for type node def 2019-04-11 23:53:59 +02:00
librustc_target Add discr_index to multi-variant layouts 2019-04-11 17:44:43 -07:00
librustc_traits Deny internal lints on non conflicting crates 2019-04-03 18:24:21 +02:00
librustc_tsan Update cmake, cc and compiler_builtins for VS 2019 support 2019-04-10 21:17:31 +02:00
librustc_typeck Auto merge of #59798 - rchaser53:issue-59488, r=estebank 2019-04-14 05:58:13 +00:00
librustdoc Auto merge of #59950 - Centril:rollup-hpmr62i, r=Centril 2019-04-14 01:10:57 +00:00
libserialize Remove useless ?Sized bound 2019-04-10 03:58:13 +02:00
libstd Rollup merge of #59852 - alexcrichton:more-vectored, r=sfackler 2019-04-14 00:23:40 +02:00
libsyntax Auto merge of #59693 - nnethercote:64-bit-Spans, r=petrochenkov 2019-04-14 08:55:16 +00:00
libsyntax_ext Auto merge of #59227 - Zoxc:fix-get, r=eddyb 2019-04-11 23:36:13 +00:00
libsyntax_pos Auto merge of #59693 - nnethercote:64-bit-Spans, r=petrochenkov 2019-04-14 08:55:16 +00:00
libterm Revert "Auto merge of #57842 - gnzlbg:extract_libtest, r=gnzlbg" 2019-04-07 03:16:31 -04:00
libtest Revert "Auto merge of #57842 - gnzlbg:extract_libtest, r=gnzlbg" 2019-04-07 03:16:31 -04:00
libunwind Support using LLVM's libunwind as the unwinder implementation 2019-04-03 11:21:40 -07:00
llvm-emscripten@7f23313edf
llvm-project@84abffda0e Support using LLVM's libunwind as the unwinder implementation 2019-04-03 11:21:40 -07:00
rtstartup
rustc Update jemalloc-sys to version 0.3.0 2019-03-26 11:03:19 +01:00
rustllvm Auto merge of #59710 - alexcrichton:llvm-9-compat, r=sanxiyn 2019-04-06 13:14:23 +00:00
stdsimd@2792b45c97 update stdsimd 2019-03-30 12:57:23 +01:00
test Auto merge of #59798 - rchaser53:issue-59488, r=estebank 2019-04-14 05:58:13 +00:00
tools Rollup merge of #59747 - gruberb:copy-book-toml-unstable-book, r=ehuss 2019-04-14 00:23:30 +02:00
.gitignore
README.md
stage0.txt bump bootstrap => 2019-03-20 2019-03-26 09:53:47 +01:00

README.md

This directory contains the source code of the rust project, including:

  • rustc and its tests
  • libstd
  • Various submodules for tools, like rustdoc, rls, etc.

For more information on how various parts of the compiler work, see the rustc guide.

There is also useful content in the following READMEs, which are gradually being moved over to the guide: