Rollup of 14 pull requests
Successful merges:
- #78961 (Make bad "rust-call" arguments no longer ICE)
- #79082 (Improve the diagnostic for when an `fn` contains qualifiers inside an `extern` block.)
- #79090 (libary: Forward compiler-builtins "asm" and "mangled-names" feature)
- #79094 (Add //ignore-macos to pretty-std-collections.rs)
- #79101 (Don't special case constant operands when lowering intrinsics)
- #79102 (Add two regression tests)
- #79110 (Remove redundant notes in E0275)
- #79116 (compiletest: Fix a warning in debuginfo tests on windows-gnu)
- #79117 (add optimization fuel checks to some mir passes)
- #79147 (Highlight MIR as Rust on GitHub)
- #79149 (Move capture lowering from THIR to MIR)
- #79155 (fix handling the default config for profiler and sanitizers)
- #79156 (Allow using `download-ci-llvm` from directories other than the root)
- #79164 (Permit standalone generic parameters as const generic arguments in macros)
Failed merges:
r? `@ghost`
`@rustbot` modify labels: rollup
fix handling the default config for profiler and sanitizers
#78354 don't handle the case that user don't add any target-specific config in `[target.*]` of `config.toml`:
```toml
changelog-seen = 2
[llvm]
link-shared = true
[build]
sanitizers = true
profiler = true
[install]
[rust]
[dist]
```
The previes code handle the default config in `Config::prase()`:
```rust
target.sanitizers = cfg.sanitizers.unwrap_or(build.sanitizers.unwrap_or_default());
target.profiler = cfg.profiler.unwrap_or(build.profiler.unwrap_or_default());
config.target_config.insert(TargetSelection::from_user(&triple), target);
```
In this case, `toml.target` don't contain any target, so the above code won't execute. Instead, a default `Target` is insert in c919f490bb/src/bootstrap/sanity.rs (L162-L166)
The default value for `bool` is false, hence the issue in #79124
This fix change the type of `sanitizers` and `profiler` to `Option<bool>`, so the default value is `None`, and fallback config is handled in `Config::sanitizers_enabled` and `Config::profiler_enabled`
fix#79124
cc `@Mark-Simulacrum` `@richkadel`
Move capture lowering from THIR to MIR
This allows us to:
- Handle precise Places captured by a closure directly in MIR. Handling
captures in MIR is easier since we can rely on/ tweak PlaceBuilder to
generate `mir::Place`s that resemble how we store captures (`hir::Place`).
- Handle `let _ = x` case when feature `capture_disjoint_fields`
is enabled directly in MIR. This is required to be done in MIR since
patterns are desugared in MIR.
Closes: rust-lang/project-rfc-2229#25
r? ```@nikomatsakis```
add optimization fuel checks to some mir passes
Fixes#77402
Inserts a bunch of calls to `consider_optimizing`. Note that `consider_optimizing` is the method that actually decrements the fuel count, so the point at which it's called is when the optimization takes place, from a fuel perspective. This means that where we call it has some thought behind it:
1. We probably don't want to decrement the fuel count before other simple checks, otherwise we count an optimization as being performed even if nothing was mutated (ie. it returned early).
2. In cases like `InstCombine`, where we gather optimizations in a pass and then mutate values, we probably would rather skip the gathering pass for performance reasons rather than skip the mutations afterwards.
compiletest: Fix a warning in debuginfo tests on windows-gnu
The warning looked like this for me:
```
Warning: C:msys64homewerust./src/etc: No such file or directory.
```
It didn't affect actual testing because we don't currently emit gdb pretty-printer information into executables on windows-gnu.
Add //ignore-macos to pretty-std-collections.rs
On macOS the test is flaky and sometimes fails,
sometimes succeeds on CI.
This is no fix for the underlying issue,
but I feel the workaround is worth it as
the issue makes it harder
to get things merged into master.
cc #78665
libary: Forward compiler-builtins "asm" and "mangled-names" feature
In principle this is a followup of rust-lang/rust#78472. In the previous PR was the support of the test crate missing.
Now users will be able to do:
```
cargo build -Zbuild-std=core -Zbuild-std-features=compiler-builtins-asm
```
and correctly get the assembly implemenations for `memcpy` and friends.
Improve the diagnostic for when an `fn` contains qualifiers inside an `extern` block.
This mitigates #78941. As suggested by ```@estebank,``` `span_suggestion` was replaced with `span_suggestion_verbose` for this specific diagnostic.
Make bad "rust-call" arguments no longer ICE
The simplest of bad rust-call definitions will no longer cause an ICE. There is a FIXME added for future work, as I wanted to get this easy fix in before trying to either add a hack or mess with the whole obligation system
fixes#22565
Remove semicolon from internal `err` macro
This macro is used in expression position (a match arm), and only
compiles because of #33953
Regardless of what happens with that issue, this makes the
usage of the macro less confusing at the call site.
Remove Hacks and Fixmes from PR CI's LLVM-9 Container
Now with LLVM 9 being the minimum supported version (thanks to #78848 ), we can
finally remove the hacks in the dockerfile.
This wasn't in the main PR bumping the version as I didn't quite
understand what's going on and needed here.
Relevant issues and PRs:
- Issue #69823
- PR #70989
I hope I actually adressed things correctly here?
This macro is used in expression position (a match arm), and only
compiles because of #33953
Regardless of what happens with that issue, this makes the
usage of the macro less confusing at the call site.
Fix setting inline hint based on `InstanceDef::requires_inline`
For instances where `InstanceDef::requires_inline` is true, an attempt
is made to set an inline hint though a call to the `inline` function.
The attempt is ineffective, since all attributes will be usually removed
by the second call.
Fix the issue by applying the attributes only once, with user provided
attributes having a priority when provided.
Closes#79108.
