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This commit relegates all pretty tests to not get run by default and rather get
run as part of an "aux" test suite. This "aux" suite is renamed from the old
"cargotest" suite to just collect tests that don't need to run everywhere but
should at least pass on Unix/Windows.
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Accept ninja-build binary in place of ninja
See comment in the diff for rationale.
r? @alexcrichton
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Change --crate-type metadata to --emit=metadata
WIP
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propagate TIME_DEPTH to the helper threads for -Z time-passes
Currently, the timing measurements for LLVM passes and the like don't come out indented, which messes up `perf.rust-lang.org`.
r? @nrc
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travis: Attempt to fix Android flakiness
There's been some flaky runs on Travis where the Android emulator is having
problems staying alive... presumably? For example:
* https://travis-ci.org/rust-lang/rust/jobs/186736745
This commit spawns the emulator in the same way as buildbot with `nohup` to hope
that it goes into the background successfully, followed by a `wait-for-device`
command. I'm not actually sure if this'll fix the problems we're seeing, but I
figure it can't hurt to test out.
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--crate-type=rlib,--emit=metadata + a warning
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Closes 38273
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[10/n] Split constants and functions' arguments into disjoint bodies.
_This is part of a series ([prev](https://github.com/rust-lang/rust/pull/38053) | [next]()) of patches designed to rework rustc into an out-of-order on-demand pipeline model for both better feature support (e.g. [MIR-based](https://github.com/solson/miri) early constant evaluation) and incremental execution of compiler passes (e.g. type-checking), with beneficial consequences to IDE support as well.
If any motivation is unclear, please ask for additional PR description clarifications or code comments._
<hr>
Finishes the signature-body split started in #37918, namely:
* `trait` items are separated just like `impl` items were, for uniformity, closing #37712
* `static`s, `const`s (including associated ones), `enum` discriminants and array lengths get bodies
* even the count in "repeat expressions", i.e. `n` in `[x; n]`, which fixes #24414
* arguments' patterns are moved to the bodies, with the types staying in `FnDecl`
* `&self` now desugars to `self: &Self` instead of `self: &_` (similarly for other `self` forms)
* `astconv`'s and metadata's (for rustdoc) informative uses are explicitly ignored for the purposes of the dep graph. this could be fixed in the future by hashing the exact information being extracted about the arguments as opposed to generating a dependency on *the whole body*
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rustbuild: Hotfix to unbreak nightly
Fixes an oversight unnoticed in #38468 that eventually broke nightly packaging. I didn't realize this until some moments ago, when I finally found out the failure is actually deterministic. Many apologies for eating 3 nightlies during the holidays.
r? @alexcrichton
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Fix argument handling on Redox
After switching the start code to be handled in libc, we are no longer passing in slices as arguments into the libstd main function. This means that handling had to be rewritten to match the unix way of doing things.
Additional commits on this branch are going to be merged in this PR: https://github.com/rust-lang/rust/pull/38577#issuecomment-269138394
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Refactor mir::dataflow: remove Ctxt associated type from BitDenotation trait
Refactor mir::dataflow: remove Ctxt associated type from BitDenotation trait
I no longer remember why I needed this (or thought I did). The way
that the `BitDenotation` is passed around in all existing use cases
(and planned future ones), the thing that were in the `Ctxt` can just
be part of `Self` instead.
(I think ariel had been pushing me to do this back when I first put in
this infrastructure; it took me a while to see how much of pain the
`Ctxt` was causing.)
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Teach `rustdoc --test` about `--sysroot`, pass it when testing rust
This permits rustdoc tests to work in stage0.
Logical continuation of #36586.
Snippet from https://github.com/rust-lang/rust/issues/38575#issuecomment-269090724:
> it should actually be possible to run all the libstd tests immediately after creating std of stage0-out - there's no reason to build librustc at all if you've just made a change to (for example) libcollections, `./x.py test src/libcollections --stage 0 -v --incremental` should just work
This PR makes it so (or appears to in my testing).
r? @alexcrichton
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Add a min_atomic_width target option, like max_atomic_width
Rationale: some ISAs, e.g. OR1K, do not have atomic instructions
for byte and halfword access, and at the same time do not have
a fixed endianness, which makes it unreasonable to implement these
through word-sized atomic accesses.
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`arr` is the actual list of targets participating in steps construction,
but due to #38468 the hosts array now consists of only the build triple
for the `dist` steps, hence all non-build-triple targets are lost for
the host-only rules.
Fix this by using the original non-shadowed hosts array in `arr`
calculation. This should unbreak the nightly packaging process.
Fixes #38637.
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ICH: Fix and test foreign mod hashing.
r? @nikomatsakis
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rustdoc: Fix invalid HTML in stability notices
`em` tags cannot contain `p` tags so use `div`s instead of `em`s as the Markdown will create `p` tags.
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The comment touched, as originally written, only concerned itself with
the `test` steps. However, since #38468 the `arr` variable actually has
gained an indirect relationship with the `dist` steps too. The comment
failed to convey the extra meaning, contributing to the misunderstanding
which eventually lead to #38637. Fix that by moving the comment into the
right place near the relevant condition, and properly documenting
`arr`'s purpose.
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clear discriminant drop flag at the bottom of a drop ladder
Fixes #38437.
Beta-nominating because serious I-wrong.
r? @eddyb
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Add Debug to OpenOptions and DirBuilder
This fixes the build on Redox as the platform independent structs now implement Debug.
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Remove special case for Box<ZST> in trans
Remove extra lang item, `exchange_free`; use `box_free` instead.
Trans used to insert code equivalent to `box_free` in a wrapper around
`exchange_free`, and that code is now removed from trans.
Fixes #37710.
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Fix ICE in rustdoc
Fixes #38237.
r? @nrc
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travis: Update the OSX image we run tests in
The current image is `xcode7.3`, Travis's current default. Unfortunately this
has a version of LLDB which doesn't support debuginfo-lldb tests (see #32520),
so we're not running LLDB tests on Travis yet.
This switches us to the newest image from Travis, `xcode8.2`, which should have
a newer version of LLDB we can run tests against.
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Trans used to insert code equivalent to box_free in a wrapper around
exchange_free, and that code is now removed from trans.
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The current image is `xcode7.3`, Travis's current default. Unfortunately this
has a version of LLDB which doesn't support debuginfo-lldb tests (see #32520),
so we're not running LLDB tests on Travis yet.
This switches us to the newest image from Travis, `xcode8.2`, which should have
a newer version of LLDB we can run tests against.
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Ctrl-Z returns from Stdin.read() when reading from the console on Windows
Fixes #19914.
Fixes read(), read_to_string(), read_to_end(), etc.
r? @alexcrichton
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initial SPARC support
### UPDATE
Can now compile `no_std` executables with:
```
$ cargo new --bin app && cd $_
$ edit Cargo.toml && tail -n2 $_
[dependencies]
core = { path = "/path/to/rust/src/libcore" }
$ edit src/main.rs && cat $_
#![feature(lang_items)]
#![no_std]
#![no_main]
#[no_mangle]
pub fn _start() -> ! {
loop {}
}
#[lang = "panic_fmt"]
fn panic_fmt() -> ! {
loop {}
}
$ edit sparc-none-elf.json && cat $_
{
"arch": "sparc",
"data-layout": "E-m:e-p:32:32-i64:64-f128:64-n32-S64",
"executables": true,
"llvm-target": "sparc",
"os": "none",
"panic-strategy": "abort",
"target-endian": "big",
"target-pointer-width": "32"
}
$ cargo rustc --target sparc-none-elf -- -C linker=sparc-unknown-elf-gcc -C link-args=-nostartfiles
$ file target/sparc-none-elf/debug/app
app: ELF 32-bit MSB executable, SPARC, version 1 (SYSV), statically linked, not stripped
$ sparc-unknown-elf-readelf -h target/sparc-none-elf/debug/app
ELF Header:
Magic: 7f 45 4c 46 01 02 01 00 00 00 00 00 00 00 00 00
Class: ELF32
Data: 2's complement, big endian
Version: 1 (current)
OS/ABI: UNIX - System V
ABI Version: 0
Type: EXEC (Executable file)
Machine: Sparc
Version: 0x1
Entry point address: 0x10074
Start of program headers: 52 (bytes into file)
Start of section headers: 1188 (bytes into file)
Flags: 0x0
Size of this header: 52 (bytes)
Size of program headers: 32 (bytes)
Number of program headers: 2
Size of section headers: 40 (bytes)
Number of section headers: 14
Section header string table index: 11
$ sparc-unknown-elf-objdump -Cd target/sparc-none-elf/debug/app
target/sparc-none-elf/debug/app: file format elf32-sparc
Disassembly of section .text:
00010074 <_start>:
10074: 9d e3 bf 98 save %sp, -104, %sp
10078: 10 80 00 02 b 10080 <_start+0xc>
1007c: 01 00 00 00 nop
10080: 10 80 00 02 b 10088 <_start+0x14>
10084: 01 00 00 00 nop
10088: 10 80 00 00 b 10088 <_start+0x14>
1008c: 01 00 00 00 nop
```
---
Someone wants to attempt launching some Rust [into space](https://www.reddit.com/r/rust/comments/5h76oa/c_interop/) but their platform is based on the SPARCv8 architecture. Let's not block them by enabling LLVM's SPARC backend.
Something very important that they'll also need is the "cabi" stuff as they'll be embedding some Rust code into a bigger C application (i.e. heavy use of `extern "C"`). The question there is what name(s) should we use for "target_arch" as the "cabi" implementation [varies according to that parameter](https://github.com/rust-lang/rust/blob/1.13.0/src/librustc_trans/abi.rs#L498-L523).
AFAICT, SPARCv8 is a 32-bit architecture and SPARCv9 is a 64-bit architecture. And, LLVM uses `sparc`, `sparcv9` and `sparcel` for [the architecture triple](https://github.com/rust-lang/llvm/blob/ac1c94226e9fa17005ce7e2dd52dd6d1875f3137/include/llvm/ADT/Triple.h#L67-L69) so perhaps we should use `target_arch = "sparc"` (32-bit) and `target_arch = "sparcv9"` (64-bit) as well.
r? @alexcrichton This PR only enables this LLVM backend when rustbuild is used. Do I also need to implement this for the old Makefile-based build system? Or are all our nightlies now being generated using rustbuild?
cc @brson
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There's been some flaky runs on Travis where the Android emulator is having
problems staying alive... presumably? For example:
* https://travis-ci.org/rust-lang/rust/jobs/186736745
This commit spawns the emulator in the same way as buildbot with `nohup` to hope
that it goes into the background successfully, followed by a `wait-for-device`
command. I'm not actually sure if this'll fix the problems we're seeing, but I
figure it can't hurt to test out.
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Fix fastcall not applying inreg attributes to arguments
Fixes https://github.com/rust-lang/rust/issues/18086
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I no longer remember why I needed this (or thought I did). The way
that the `BitDenotation` is passed around in all existing use cases
(and planned future ones), the thing that were in the `Ctxt` can just
be part of `Self` instead.
(I think ariel had been pushing me to do this back when I first put in
this infrastructure; it took me a while to see how much of pain the
`Ctxt` was causing.)
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More systematic error reporting in path resolution
Path resolution for types, expressions and patterns used various heuristics to give more helpful messages on unresolved or incorrectly resolved paths.
This PR combines these heuristics and applies them to all non-import paths.
First a path is resolved in all namespaces, starting from its primary namespace (to give messages like "expected function, found macro, you probably forgot `!`").
If this resolution doesn't give a desired result we create a base error - either "path is not resolved" or "path is resolved, but the resolution is not acceptable in this context".
Other helps and notes are applied to this base error using heuristics.
Here's the list of heuristics for a path with a last segment `name` in order.
First we issue special messages for unresolved `Self` and `self`.
Second we try to find free items named `name` in other modules and suggest to import them.
Then we try to find fields and associated items named `name` and suggest `self.name` or `Self::name`.
After that we try several deterministic context dependent heuristics like "expected value, found struct, you probably forgot `{}`".
If nothing of the above works we try to find candidates with other names using Levenshtein distance.
---
Some alternatives/notes/unresolved questions:
- ~~I had a strong desire to migrate all affected tests to `test/ui`, diagnostics comparison becomes much more meaningful, but I did this only for few tests so far.~~ (Done)
- ~~Labels for "unresolved path" errors are mostly useless now, it may make sense to move some help/notes to these labels, help becomes closer to the error this way.~~ (Done)
- ~~Currently only the first successful heuristic results in additional message shown to the user, it may make sense to print them all, they are rarely compatible, so the diagnostics bloat is unlikely.~~ (Done)
- Now when https://github.com/rust-lang/rust/pull/38014 landed `resolve_path` can potentially be replaced with `smart_resolve_path` in couple more places - e.g. ~~visibilities~~ (done), ~~import prefixes~~ (done), HIR paths.
---
Some additional fixes:
- Associated suggestions and typo suggestions are filtered with a context specific predicate to avoid inapplicable suggestions.
- `adjust_local_def` works properly in speculative resolution.
- I also fixed a recently introduced ICE in partially resolved UFCS paths (see test `ufcs-partially-resolved.rs`). Minimal reproduction:
```
enum E {}
fn main() {
<u8 as E>::A;
}
```
Fixes https://github.com/rust-lang/rust/issues/38409, fixes https://github.com/rust-lang/rust/issues/38504 (duplicates).
- Some bugs in resolution of visibilities are fixed - `pub(Enum)`, `pub(Trait)`, `pub(non::local::path)`.
- Fixes https://github.com/rust-lang/rust/issues/38012.
---
r? @jseyfried for technical details + @jonathandturner for diagnostics changes
How to read the patch: `smart_resolve_path(_fragment)/resolve_qpath_anywhere` are written anew and replace `resolve_trait_reference`/`resolve_type`/`resolve_pattern_path`/`resolve_struct_path`/`resolve_expr` for `ExprKind::Path`, everything else can be read as a diff.
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Fix fs tests on Windows systems with non-english locales.
Fixes https://github.com/rust-lang/rust/issues/34628
r? @alexcrichton
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Emscripten targets are Unix targets
I suspect this will fix the errors compiling libc https://buildbot.rust-lang.org/builders/auto-linux-rustbuild-cross-opt/builds/689/steps/compile/logs/stdio that are occurring on every PR.
Emscripten is basically a posix emulation layer for the web and I consider it a Unix.
cc @alexcrichton
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Just fixing a compile error
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Use `DefId`s instead of `NodeId`s for `pub(restricted)` visibilities
This is groundwork for hygiene 2.0, specifically privacy checking hygienic intercrate name resolutions.
r? @nrc
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resolve: fix non-termination
Fixes #34324.
r? @eddyb
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