Nest tests/codegen/sanitizer*.rs tests in sanitizer dir #114229
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In the basic case, simply do the string substitution. For one case with many instances, capture the Itanium- mangled filename and assert its reuse instead.
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…nest, r=Mark-Simulacrum Nest other codegen test topics This PR is like rust-lang#114229 in that it mostly pushes codegen tests around, shoving them into their own directories, but because all of the changes are very simple cleanups I pulled them into a separate PR. The other PR might involve actually evaluating the correctness of the test after changes, but here it is mostly a matter of taste. The only "functional" change is deleting a few tests that... hinge on a version of LLVM that we don't support (as of rust-lang#114148 anyways). I considered a few different ways to group other topics but I feel the question of whether `tests/codegen/{vec,array,slice}` should exist is more subtle than these choices, as it might be better to group such related tests by other topics like bounds check elision, thus I avoided making it.
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…iaskrgr Rollup of 8 pull requests Successful merges: - rust-lang#98935 (Implement `Option::take_if`) - rust-lang#114093 (Add regression test for `echo 'mod unknown;' | rustc -`) - rust-lang#114229 (Nest tests/codegen/sanitizer*.rs tests in sanitizer dir) - rust-lang#114230 (Nest other codegen test topics) - rust-lang#114362 (string.rs: remove "Basic usage" text) - rust-lang#114365 (str.rs: remove "Basic usage" text) - rust-lang#114382 (Add a new `compare_bytes` intrinsic instead of calling `memcmp` directly) - rust-lang#114549 (Style fix and refactor on resolve diagnostics) r? `@ghost` `@rustbot` modify labels: rollup
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…ark-Simulacrum Nest other codegen test topics This PR is like rust-lang/rust#114229 in that it mostly pushes codegen tests around, shoving them into their own directories, but because all of the changes are very simple cleanups I pulled them into a separate PR. The other PR might involve actually evaluating the correctness of the test after changes, but here it is mostly a matter of taste. The only "functional" change is deleting a few tests that... hinge on a version of LLVM that we don't support (as of rust-lang/rust#114148 anyways). I considered a few different ways to group other topics but I feel the question of whether `tests/codegen/{vec,array,slice}` should exist is more subtle than these choices, as it might be better to group such related tests by other topics like bounds check elision, thus I avoided making it.
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The sanitizer tests are the largest and most meticulously tested set of tests in tests/codegen. That's good! They all clearly belong to a subject and thus could go in a directory, but are not, instead being placed simply in tests/codegen. That's bad! Fix this by placing them in their own directory and renaming them to be less repetitive after that move.
A few tests are brittle, and embed their filename in the test's checks. This is acceptable for the ones where it is used only two times, but one test embeds the test's mangled filename in the test over 50 times! This may have been one of the things discouraging anyone from moving it, and thus from moving the set. Fortunately, I have some knowledge of Itanium mangling (involuntarily), regex, and the FileCheck syntax. With a capturing variable, FileCheck allows us to now move this test around again without diffing it on ~50 lines, while still guaranteeing that the mangled substring is the same each time.
This also clarifies why the substring is repeated a zillion times, instead of being cryptic. They don't call it mangling because the result is pretty and easy to understand, but now it is slightly easier! Yay descriptive variables!