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author | Daniel Baumann <daniel.baumann@progress-linux.org> | 2024-04-17 12:18:58 +0000 |
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committer | Daniel Baumann <daniel.baumann@progress-linux.org> | 2024-04-17 12:18:58 +0000 |
commit | a4b7ed7a42c716ab9f05e351f003d589124fd55d (patch) | |
tree | b620cd3f223850b28716e474e80c58059dca5dd4 /tests/codegen/enum-bounds-check-issue-82871.rs | |
parent | Adding upstream version 1.67.1+dfsg1. (diff) | |
download | rustc-a4b7ed7a42c716ab9f05e351f003d589124fd55d.tar.xz rustc-a4b7ed7a42c716ab9f05e351f003d589124fd55d.zip |
Adding upstream version 1.68.2+dfsg1.upstream/1.68.2+dfsg1
Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>
Diffstat (limited to 'tests/codegen/enum-bounds-check-issue-82871.rs')
-rw-r--r-- | tests/codegen/enum-bounds-check-issue-82871.rs | 18 |
1 files changed, 18 insertions, 0 deletions
diff --git a/tests/codegen/enum-bounds-check-issue-82871.rs b/tests/codegen/enum-bounds-check-issue-82871.rs new file mode 100644 index 000000000..32fdc4a5f --- /dev/null +++ b/tests/codegen/enum-bounds-check-issue-82871.rs @@ -0,0 +1,18 @@ +// compile-flags: -C opt-level=0 + +#![crate_type = "lib"] + +#[repr(C)] +pub enum E { + A, +} + +// CHECK-LABEL: @index +#[no_mangle] +pub fn index(x: &[u32; 3], ind: E) -> u32 { + // Canary: we should be able to optimize out the bounds check, but we need + // to track the range of the discriminant result in order to be able to do that. + // oli-obk tried to add that, but that caused miscompilations all over the place. + // CHECK: panic_bounds_check + x[ind as usize] +} |