cmse: do not calculate the layout of a type with infer types
tracking issue: https://github.com/rust-lang/rust/issues/81391
tracking issue: https://github.com/rust-lang/rust/issues/75835
fixes https://github.com/rust-lang/rust/issues/130104
Don't calculate the layout of a type with an infer type (`_`). This now emits `LayoutError::Unknown`, causing an error similar to when any other calling convention is used in this location.
The tests use separate functions because only the first such error in a function body is reported.
r? `@davidtwco` (might need some T-types assistance)
This is serves as a collection of crashes so that accidental ICE fixes are tracked.
This was formally done at https://github.com/rust-lang/glacier but doing it inside
the rustc testsuite is more convenient.
It is imperative that a test in the suite causes an internal compiler error/panic
or makes rustc crash in some other way.
A test will "pass" if rustc exits with something other than 1 or 0.
When adding crashes from https://github.com/rust-lang/rust/issues, the
issue number should be noted in the file name (12345.rs should suffice)
and also inside the file via //@ known-bug #4321 if possible.
If you happen to fix one of the crashes, please move it to a fitting
subdirectory in tests/ui and give it a meaningful name.
Also please add a doc comment at the top of the file explaining why
this test exists. :)
Adding
Fixes #NNNNN
Fixes #MMMMM
to the description of your pull request will ensure the
corresponding tickets will be closed automatically upon merge.
The ticket ids can be found in the file name or the known-bug annotation
inside the testfile.
Please do not re-report any crashes that you find here!
Matthias Krüger
6e5661eefc