14 lines
782 B
Rust
14 lines
782 B
Rust
#[inline]
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#[cfg_attr(all(test, assert_no_panic), no_panic::no_panic)]
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pub fn fminf(x: f32, y: f32) -> f32 {
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// IEEE754 says: minNum(x, y) is the canonicalized number x if x < y, y if y < x, the
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// canonicalized number if one operand is a number and the other a quiet NaN. Otherwise it
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// is either x or y, canonicalized (this means results might differ among implementations).
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// When either x or y is a signalingNaN, then the result is according to 6.2.
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//
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// Since we do not support sNaN in Rust yet, we do not need to handle them.
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// FIXME(nagisa): due to https://bugs.llvm.org/show_bug.cgi?id=33303 we canonicalize by
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// multiplying by 1.0. Should switch to the `canonicalize` when it works.
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(if y.is_nan() || x < y { x } else { y }) * 1.0
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}
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