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- Remove unnecessary references and dereferences
- Use `.contains` instead of `a <= x && x <= b`
- Use `mem::take` instead of `mem::replace` where possible
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Recently, another Miri user was trying to run `cargo miri test` on the
crate `iced-x86` with `--features=code_asm,mvex`. This configuration has
a startup time of ~18 minutes. That's ~18 minutes before any tests even
start to run. The fact that this crate has over 26,000 tests and Miri is
slow makes a lot of code which is otherwise a bit sloppy but fine into a
huge runtime issue.
Sorting the tests when the test harness is created instead of at startup
time knocks just under 4 minutes out of those ~18 minutes. I have ways
to remove most of the rest of the startup time, but this change requires
coordinating changes of both the compiler and libtest, so I'm sending it
separately.
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This updates the standard library's documentation to use the new syntax. The
documentation is worthwhile to update as it should be more idiomatic
(particularly for features like this, which are nice for users to get acquainted
with). The general codebase is likely more hassle than benefit to update: it'll
hurt git blame, and generally updates can be done by folks updating the code if
(and when) that makes things more readable with the new format.
A few places in the compiler and library code are updated (mostly just due to
already having been done when this commit was first authored).
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As an example:
#[test]
#[ignore = "not yet implemented"]
fn test_ignored() {
...
}
Will now render as:
running 2 tests
test tests::test_ignored ... ignored, not yet implemented
test result: ok. 1 passed; 0 failed; 1 ignored; 0 measured; 0 filtered out; finished in 0.00s
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* Add wasm64 variants for inline assembly along the same lines as wasm32
* Update a few directives in libtest to check for `target_family`
instead of `target_arch`
* Update some rustc codegen and typechecks specialized for wasm32 to
also work for wasm64.
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