Rollup merge of #41578 - arielb1:missing-adjustment, r=eddyb
typeck: resolve type vars before calling `try_index_step`
`try_index_step` does not resolve type variables by itself and would
fail otherwise. Also harden the failure path in `confirm` to cause less
confusing errors.
r? @eddyb
Fixes #41498.
beta-nominating because regression (caused by #41279).
Auto merge of #41447 - alexcrichton:sccache-everywhere, r=brson
appveyor: Use Ninja/sccache on MSVC
Now that the final bug fixes have been merged into sccache we can start
leveraging sccache on the MSVC builders on AppVeyor instead of relying on the
ad-hoc caching strategy of trigger files and whatnot.
Alex Crichton [Sat, 25 Feb 2017 17:53:46 +0000 (09:53 -0800)]
appveyor: Use Ninja/sccache on MSVC
Now that the final bug fixes have been merged into sccache we can start
leveraging sccache on the MSVC builders on AppVeyor instead of relying on the
ad-hoc caching strategy of trigger files and whatnot.
typeck: resolve type vars before calling `try_index_step`
`try_index_step` does not resolve type variables by itself and would
fail otherwise. Also harden the failure path in `confirm` to cause less
confusing errors.
Auto merge of #37860 - giannicic:defaultimpl, r=nagisa
#37653 support `default impl` for specialization
this commit implements the first step of the `default impl` feature:
> all items in a `default impl` are (implicitly) `default` and hence
> specializable.
In order to test this feature I've copied all the tests provided for the
`default` method implementation (in run-pass/specialization and
compile-fail/specialization directories) and moved the `default` keyword
from the item to the impl.
See [referenced](https://github.com/rust-lang/rust/issues/37653) issue for further info
Rollup merge of #41546 - cuviper:reduced-rust-src, r=alexcrichton
Shrink the rust-src component
Before this change, the installable rust-src component had essentially the same contents as the rustc-src dist tarball, just additionally wrapped in a rust-installer. As discussed on [internals], rust-src is only meant to support uses for the standard library, so it doesn't really need the rest of the compiler sources.
Now rust-src only contains libstd and its path dependencies, which roughly matches the set of crates that have rust-analysis data. The result is **significantly** smaller, from 36MB to 1.3MB compressed, and from 247MB to 8.5MB uncompressed.
Rollup merge of #41524 - michaelwu:basic-hexagon, r=alexcrichton
Add Hexagon support
This requires an updated LLVM with https://reviews.llvm.org/D31999 and https://reviews.llvm.org/D32000 to build libcore.
A basic hello world builds and runs successfully on the hexagon simulator. libcore is fine with LLVM fixes, but libstd requires a lot more work since there's a custom rtos running on most hexagon cores. Running Linux sounds possible though, so maybe getting linux + musl going would be easier.
Here's the target file I've been using for testing
```
{
"arch": "hexagon",
"llvm-target": "hexagon-unknown-elf",
"os": "none",
"target-endian": "little",
"target-pointer-width": "32",
Auto merge of #41563 - aidanhs:aphs-fix-spurious-osx-openssl-failure, r=alexcrichton
Make sure openssl compiles with only one core
This is (hopefully) a fix for the osx openssl spurious failure - #40417.
The intermittent failures and failing in different ways made me think of a race condition. But programs are parallel make safe right? [Not openssl](https://github.com/openssl/openssl/issues/298). But we don't do a parallel make on openssl [do we](https://github.com/rust-lang/rust/blob/8c4f2c64c6759a82f143e23964a46a65c67509c9/src/bootstrap/native.rs#L309)? This confused me, except "Waiting for unfinished jobs" is present in the logs...which is evidence of a parallel make!
It turns out that when we invoke to top level target [in run.sh](https://github.com/rust-lang/rust/blob/036983201d4e9aeb5c5e56e47c305971972b2569/src/ci/run.sh#L75-L77), make will [pass the flags downwards](https://www.gnu.org/software/make/manual/html_node/Options_002fRecursion.html) in order to take advantage of parallelism in sub-makes. Of course, we don't want this in openssl! Override this by explicitly disabling parallelism on the command line.
I don't know why this hasn't happened on anything except OSX. Maybe Linux binutils check if the file is in use?
Auto merge of #41420 - alexcrichton:mingw-6.3.0, r=petrochenkov
appveyor: Upgrade to gcc for mingw 6.3.0
This commit sort of brings back #40777 by upgrading back to 6.3.0. While
investigating #40546 it was discovered that 6.3.0 appears to not spurious
fail in the same way that 6.2.0 does (which we're currently using). The
workaround for #40184 contained in #40777 did not work so this commit also
contains a different workaround for the gdb issue. We will not download the
6.2.0 version of gdb and use that instead of the default version that comes with
6.3.0.
Alex Crichton [Thu, 20 Apr 2017 15:35:03 +0000 (08:35 -0700)]
appveyor: Upgrade to gcc for mingw 6.3.0
This commit sort of brings back #40777 by upgrading back to 6.3.0. While
investigating #40546 it was discovered that 6.3.0 appears to not spurious
fail in the same way that 6.2.0 does (which we're currently using). The
workaround for #40184 contained in #40777 did not work so this commit also
contains a different workaround for the gdb issue. We will not download the
6.2.0 version of gdb and use that instead of the default version that comes with
6.3.0.
Auto merge of #41352 - kennytm:macos-sanitizers, r=alexcrichton
Support AddressSanitizer and ThreadSanitizer on x86_64-apple-darwin
[ASan](https://clang.llvm.org/docs/AddressSanitizer.html#supported-platforms) and [TSan](https://clang.llvm.org/docs/ThreadSanitizer.html#supported-platforms) are supported on macOS, and this commit enables their support.
The sanitizers are always built as `*.dylib` on Apple platforms, so they cannot be statically linked into the corresponding `rustc_?san.rlib`. The dylibs are directly copied to `lib/rustlib/x86_64-apple-darwin/lib/` instead.
Note, although Xcode also ships with their own copies of ASan/TSan dylibs, we cannot use them due to version mismatch.
----
~~There is a caveat: the sanitizer libraries are linked as `@rpath/` (due to https://reviews.llvm.org/D6018), so the user needs to additionally pass `-C rpath`:~~
Auto merge of #41504 - eddyb:query-api, r=nikomatsakis
Improve the librustc on-demand/query API ergonomics.
Queries are now performed through these two forms:
* `tcx.type_of(def_id)` (the most common usage)
* `tcx.at(span).type_of(def_id)` (to provide a more specific location in the cycle stack)
Several queries were renamed to work better as method names, i.e. by suffixing with `_of`.
Auto merge of #41258 - clarcharr:str_box_extras, r=Kimundi
More methods for str boxes. (reduce Box<[u8]> ↔ Box<str> transmutes)
This is a follow-up to #41096 that adds safer methods for converting between `Box<str>` and `Box<[u8]>`. They're gated under a different feature from the `&mut str` methods because they may be too niche to include in public APIs, although having them internally helps reduce the number of transmutes the standard library uses.
What's added:
* `From<Box<str>> for Box<[u8]>`
* `<Box<str>>::into_boxed_bytes` (just calls `Into::into`)
* `alloc::str` (new module)
* `from_boxed_utf8` and `from_boxed_utf8_unchecked`, defined in `alloc:str`, exported in `collections::str`
* exports `from_utf8_mut` in `collections::str` (missed from previous PR)
Auto merge of #41362 - alexcrichton:run-cargot-ests, r=aturon
Run tests for the cargo submodule in tree
Previously the `cargotest` suite would run some arbitrary revision of Cargo's
test suite, but now that we're bundling it in tree we should be running the
Cargo submodule's test suite instead.
Support AddressSanitizer and ThreadSanitizer on x86_64-apple-darwin.
ASan and TSan are supported on macOS, and this commit enables their
support.
The sanitizers are always built as *.dylib on Apple platforms, so they
cannot be statically linked into the corresponding `rustc_?san.rlib`. The
dylibs are directly copied to `lib/rustlib/x86_64-apple-darwin/lib/`
instead.
Note, although Xcode also ships with their own copies of ASan/TSan dylibs,
we cannot use them due to version mismatch.
There is a caveat: the sanitizer libraries are linked as @rpath, so the
user needs to additionally pass `-C rpath`:
Auto merge of #40123 - TimNN:llvm40, r=alexcrichton
LLVM 4.0 Upgrade
Since nobody has done this yet, I decided to get things started:
**Todo:**
* [x] push the relevant commits to `rust-lang/llvm` and `rust-lang/compiler-rt`
* [x] cleanup `.gitmodules`
* [x] Verify if there are any other commits from `rust-lang/llvm` which need backporting
* [x] Investigate / fix debuginfo ("`<optimized out>`") failures
* [x] Use correct emscripten version in docker image
Alex Crichton [Tue, 18 Apr 2017 00:24:05 +0000 (17:24 -0700)]
Run tests for the cargo submodule in tree
Previously the `cargotest` suite would run some arbitrary revision of Cargo's
test suite, but now that we're bundling it in tree we should be running the
Cargo submodule's test suite instead.
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