This commit moves compression of the bytecode from the `link` module to the
`write` module, namely allowing it to be (a) cached by incremental compilation
and (b) produced in parallel. The parallelization may show up as some nice wins
during normal compilation and the caching in incremental mode should be
beneficial for incremental compiles! (no more need to recompress the entire
crate's bitcode on all builds)
Incremental compilation auto assert (with except)
cc @michaelwoerister
bors merged part 1, so this is a WIP of part 2 of #45009 -- auto asserting DepNodes depending on the type of node rustc_clean/dirty is attached to
Framework:
- [x] finish auto-detection for specified DepNodes
- [x] finish auto-detection for remaining DepNodes
Test Refactors:
- [x] consts.rs
- [x] enum_constructors.rs
- [x] extern_mods.rs
- [x] inherent_impls.rs
- [x] statics.rs
- [x] struct_constructors.rs
- ~~**BLOCKED** trait_defs.rs, see FIXME~~
- ~~**BLOCKED** trait_impls.rs~~
- [x] type_defs.rs
- [x] enum_defs.rs
incr.comp.: Bring back output of -Zincremental-info.
This got kind lost during the transition to red/green.
I also switched back from `eprintln!()` to `println!()` since the former never actually produced any output. I suspect this has to do with `libterm` somehow monopolizing `stderr`.
r? @nikomatsakis
This adds auto-assertion to `rustc_clean/dirty` and also implements
more comprehensive testing for
- src/test/incremental/hashes/enum_constructors.rs
- src/test/incremental/hashes/enum_defs.rs
- src/test/incremental/hashes/extern_mods.rs
- src/test/incremental/hashes/inherent_impls.rs
- src/test/incremental/hashes/statics.rs
- src/test/incremental/hashes/struct_constructors.rs
- src/test/incremental/hashes/type_defs.rs
trait_defs.rs and trait_impl.rs are blocked on a hard to triage
compiler ICE (at least hard for a newbie like me) having to do
with some DepNodes not getting computed for traits.
A FIXME has been added in the source to reflect this continued
work.
groundwork for rustc_clean/dirty improvements
This is a WIP PR that needs mentoring from @michaelwoerister.
There are several TODOs but no outstanding questions (except for the main one -- **is this the right approach?**)
This is the plumbing for supporing groups in `rustc_clean(labels="...")`, as well as supporting an `except="..."` which will remove the excepted labels in the "clean" check and then assert that they are dirty (this is still TODO).
See the code TODO's and example comments for a rough design.
I'd like to know if this is the design you would like to do, and then I can go about actually filling out the groups and implementing the remaining logic.
- Don't hash traits in scope as part of HIR hashing any more.
- Some queries returned DefIndexes from other crates.
- Provide a generic way of stably hashing maps (not used everywhere yet).
This commit removes the `dep_graph` field from the `Session` type according to
issue #44390. Most of the fallout here was relatively straightforward and the
`prepare_session_directory` function was rejiggered a bit to reuse the results
in the later-called `load_dep_graph` function.
Closes#44390
This commit adds some "boilerplate" build scripts to librustc/libsyntax crates
to declare dependencies on various environment variables that are configured
throughout the build. Cargo recently gained the ability to depend on environment
variables in build scripts which can help trigger recompilation of a crate.
This should fix weird bugs where after you make a commit or a few days later
you'll get weird "not built with the same compiler" errors hopefully.
