disable a ptr equality test on Miri #79631
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r? @dtolnay (rust-highfive has picked a reviewer for you, use r? to override) |
RalfJung
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Dec 2, 2020
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| unsafe { | ||
| // Miri does not deduplicate consts (https://github.com/rust-lang/miri/issues/131) | ||
| #[cfg(not(miri))] |
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I'd prefer to have the comment and the attribute on the same line (so that grepping for the attribute also shows explanations) but rustfmt won't let me. :(
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📌 Commit 7e74b72 has been approved by |
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This test relies on deduplication of constants. I do not think that this is a guarantee that Rust currently makes, and indeed Miri does not deduplicate constants the same way that rustc does, leading to different behavior in this test.
For now, I propose we simply disable this test in Miri.