mirror of https://github.com/rust-lang/rust
23 lines
820 B
Rust
23 lines
820 B
Rust
#![crate_type = "rlib"]
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#![no_std]
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#![feature(portable_simd)]
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use core::simd::f32x4;
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use core::simd::num::SimdFloat;
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// For SIMD float ops, the LLIR version which is used to implement the portable
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// forms of them may become calls to math.h AKA libm. So, we can't guarantee
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// we can compile them for #![no_std] crates.
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// Someday we may solve this.
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// Until then, this test at least guarantees these functions require std.
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fn guarantee_no_std_nolibm_calls() -> f32x4 {
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let x = f32x4::from_array([0.1, 0.5, 0.6, -1.5]);
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let x2 = x + x;
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let _xc = x.ceil(); //~ ERROR E0599
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let _xf = x.floor(); //~ ERROR E0599
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let _xr = x.round(); //~ ERROR E0599
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let _xt = x.trunc(); //~ ERROR E0599
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let _xfma = x.mul_add(x, x); //~ ERROR E0599
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let _xsqrt = x.sqrt(); //~ ERROR E0599
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x2.abs() * x2
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}
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