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author | Daniel Baumann <daniel.baumann@progress-linux.org> | 2024-04-17 12:18:32 +0000 |
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committer | Daniel Baumann <daniel.baumann@progress-linux.org> | 2024-04-17 12:18:32 +0000 |
commit | 4547b622d8d29df964fa2914213088b148c498fc (patch) | |
tree | 9fc6b25f3c3add6b745be9a2400a6e96140046e9 /src/test/ui/mir/validate/needs-reveal-all.rs | |
parent | Releasing progress-linux version 1.66.0+dfsg1-1~progress7.99u1. (diff) | |
download | rustc-4547b622d8d29df964fa2914213088b148c498fc.tar.xz rustc-4547b622d8d29df964fa2914213088b148c498fc.zip |
Merging upstream version 1.67.1+dfsg1.
Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>
Diffstat (limited to 'src/test/ui/mir/validate/needs-reveal-all.rs')
-rw-r--r-- | src/test/ui/mir/validate/needs-reveal-all.rs | 52 |
1 files changed, 52 insertions, 0 deletions
diff --git a/src/test/ui/mir/validate/needs-reveal-all.rs b/src/test/ui/mir/validate/needs-reveal-all.rs new file mode 100644 index 000000000..3852daf24 --- /dev/null +++ b/src/test/ui/mir/validate/needs-reveal-all.rs @@ -0,0 +1,52 @@ +// Regression test for #105009. the issue here was that even after the `RevealAll` pass, +// `validate` still used `Reveal::UserFacing`. This meant that it now ends up comparing +// opaque types with their revealed version, resulting in an ICE. +// +// We're using these flags to run the `RevealAll` pass while making it less likely to +// accidentally removing the assignment from `Foo<fn_ptr>` to `Foo<fn_def>`. + +// compile-flags: -Zinline_mir=yes -Zmir-opt-level=0 -Zvalidate-mir +// run-pass + +use std::hint::black_box; + +trait Func { + type Ret: Id; +} + +trait Id { + type Assoc; +} +impl Id for u32 { + type Assoc = u32; +} +impl Id for i32 { + type Assoc = i32; +} + +impl<F: FnOnce() -> R, R: Id> Func for F { + type Ret = R; +} + +fn bar() -> impl Copy + Id { + 0u32 +} + +struct Foo<T: Func> { + _func: T, + value: Option<<<T as Func>::Ret as Id>::Assoc>, +} + +fn main() { + let mut fn_def = black_box(Foo { + _func: bar, + value: None, + }); + let fn_ptr = black_box(Foo { + _func: bar as fn() -> _, + value: None, + }); + + fn_def.value = fn_ptr.value; + black_box(fn_def); +} |