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author | Daniel Baumann <daniel.baumann@progress-linux.org> | 2024-04-17 12:02:58 +0000 |
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committer | Daniel Baumann <daniel.baumann@progress-linux.org> | 2024-04-17 12:02:58 +0000 |
commit | 698f8c2f01ea549d77d7dc3338a12e04c11057b9 (patch) | |
tree | 173a775858bd501c378080a10dca74132f05bc50 /src/test/ui/mir/mir_const_prop_tuple_field_reorder.rs | |
parent | Initial commit. (diff) | |
download | rustc-698f8c2f01ea549d77d7dc3338a12e04c11057b9.tar.xz rustc-698f8c2f01ea549d77d7dc3338a12e04c11057b9.zip |
Adding upstream version 1.64.0+dfsg1.upstream/1.64.0+dfsg1
Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>
Diffstat (limited to '')
-rw-r--r-- | src/test/ui/mir/mir_const_prop_tuple_field_reorder.rs | 27 |
1 files changed, 27 insertions, 0 deletions
diff --git a/src/test/ui/mir/mir_const_prop_tuple_field_reorder.rs b/src/test/ui/mir/mir_const_prop_tuple_field_reorder.rs new file mode 100644 index 000000000..b66a85d07 --- /dev/null +++ b/src/test/ui/mir/mir_const_prop_tuple_field_reorder.rs @@ -0,0 +1,27 @@ +// compile-flags: -Z mir-opt-level=3 +// build-pass +#![crate_type="lib"] + +// This used to ICE: const-prop did not account for field reordering of scalar pairs, +// and would generate a tuple like `(0x1337, VariantBar): (FooEnum, isize)`, +// causing assertion failures in codegen when trying to read 0x1337 at the wrong type. + +pub enum FooEnum { + VariantBar, + VariantBaz, + VariantBuz, +} + +pub fn wrong_index() -> isize { + let (_, b) = id((FooEnum::VariantBar, 0x1337)); + b +} + +pub fn wrong_index_two() -> isize { + let (_, (_, b)) = id(((), (FooEnum::VariantBar, 0x1338))); + b +} + +fn id<T>(x: T) -> T { + x +} |