Rework `no_coverage` to `coverage(off)`
As discussed at the tail of https://github.com/rust-lang/rust/issues/84605 this replaces the `no_coverage` attribute with a `coverage` attribute that takes sub-parameters (currently `off` and `on`) to control the coverage instrumentation.
Allows future-proofing for things like `coverage(off, reason="Tested live", issue="#12345")` or similar.
Rollup of 6 pull requests
Successful merges:
- #115736 (Remove `verbose_generic_activity_with_arg`)
- #115771 (cleanup leftovers of const_err lint)
- #115798 (add helper method for finding the one non-1-ZST field)
- #115812 (Merge settings.css into rustdoc.css)
- #115815 (fix: return early when has tainted in mir pass)
- #115816 (Disabled socketpair for Vita)
r? `@ghost`
`@rustbot` modify labels: rollup
Disabled socketpair for Vita
There is no `socketpair` syscall in Vita newlib. This is reflected in a rust-lang/libc#3284, in which this method is removed for vita target.
Also, we would need the fixes from the abovementioned PR for sockets in std (previously we had some incorrect constant values), but that can be done separately when rust-lang/libc#3284 is reviewed, merged, and released.
Merge settings.css into rustdoc.css
There aren't that many CSS rules in `settings.css`, however quite some code is needed around it, making it more costly than useful. I think it's better to merge into `rustdoc.css` to simplify this.
r? `@notriddle`
cleanup leftovers of const_err lint
Some code / comments seem to not have been updated when const_err was turned into a hard error, so we can do a bit of cleanup here.
r? `@oli-obk`
Remove `verbose_generic_activity_with_arg`
This removes `verbose_generic_activity_with_arg` and changes users to `generic_activity_with_arg`. This keeps the output of `-Z time` readable while these repeated events are still available with the self profiling mechanism.
Make compiletest output truncation less disruptive
When the test output becomes too large, compiletest stops recording all of it. However:
- this can lead to invalid JSON, which then causes compiletest itself to throw further errors
- the note that output was truncated is in the middle of the output, with >100kb of text on each side; that makes it almost impossible to actually see that note in the terminal
So assuming that we do need to keep the output truncation, I propose that we only ever do a cut at the end, so that it is very clear by looking at the end of the log that truncation happened. I added a message at the beginning of the output as well. Also I added some logic to make it less likely that we'll cut things off in the middle of a JSON record. (I tested that successfully by reducing the output limit to something very low and running a few ui tests.) Furthermore I increased the max buffer size to 512KB; that's really not a lot of memory compared to how much RAM it takes to build rustc (it's ~25% more than the previous maximum HEAD+TAIL length). And finally, the information that things got truncated is now propagated to the higher levels, so that we can fail the test instead of comparing the truncated output with the reference.
Fixes https://github.com/rust-lang/rust/issues/115675
Fixes https://github.com/rust-lang/rust/issues/96229
Fixes https://github.com/rust-lang/rust/issues/94322
Fixes https://github.com/rust-lang/rust/issues/92211
tests: re-enable pretty-std-collections on macOS
Fixes#78665.
I made some small modifications to this test so that it would pass for me locally (though I was only able to test using lldb without built-in Rust support, but that seems to be the mode in which it would fail). I ran it a few hundred times with stage one and stage two to see if I could re-produce the spurious failures that were being reported in #78665 and couldn't. From the discussion in #78665, it seemed like this was related to Xcode versions and could be reproduced locally fairly easily. It's been a couple years since this was disabled so a lot has changed. If this starts failing spuriously again then we can disable it and I can look into that.
r? `@wesleywiser` (discussed in wg-debugging's triage meeting)
Implement some `llvm.x86.sse2.*` intrinsics and add tests
Continuation of https://github.com/rust-lang/miri/pull/2989 with SSE2 intrinsics.
Thankfully, a significant amount of SSE2 functions use `simd_*` intrinsics, which are already implemented in Miri.
Implements LLVM intrisics needed to run most SSE2 functions from `core::arch::x86{,_64}`.
Also adds miri tests for those functions (mostly copied from core_arch tests).
