Guillaume Gomez cb7efc0cbd

Rollup merge of #141676 - tgross35:f16-disable-total-cmp, r=workingjubilee ...

float: Disable `total_cmp` sNaN tests for `f16`

There is an LLVM bug with lowering of basic `f16` operations that mean a round trip via `__extendhfsf2` and `__truncsfhf2` may happen for simple `abs` calls or bitcasts [1]. This is problematic because the round trip quiets signaling NaNs. For most operations this is acceptable, but it is causing `total_cmp` tests to fail unless optimizations are enabled.

Disable `total_cmp` tests involving signaling NaNs until this issue is resolved.

Fixes: https://github.com/rust-lang/rustc_codegen_cranelift/issues/1578
Fixes: https://github.com/rust-lang/rust/issues/141503

[1]: https://github.com/llvm/llvm-project/issues/104915

2025-05-29 17:03:00 +02:00

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benches

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tests

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Cargo.toml

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lib.rs

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