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-rw-r--r--src/test/ui/simd/libm_std_can_float.rs23
1 files changed, 23 insertions, 0 deletions
diff --git a/src/test/ui/simd/libm_std_can_float.rs b/src/test/ui/simd/libm_std_can_float.rs
new file mode 100644
index 000000000..1c520856e
--- /dev/null
+++ b/src/test/ui/simd/libm_std_can_float.rs
@@ -0,0 +1,23 @@
+// run-pass
+
+// This is the converse of the other libm test.
+#![feature(portable_simd)]
+use std::simd::f32x4;
+use std::simd::{SimdFloat, StdFloat};
+
+// For SIMD float ops, the LLIR version which is used to implement the portable
+// forms of them may become calls to math.h AKA libm. So, we can't guarantee
+// we can compile them for #![no_std] crates.
+//
+// However, we can expose some of these ops via an extension trait.
+fn main() {
+ let x = f32x4::from_array([0.1, 0.5, 0.6, -1.5]);
+ let x2 = x + x;
+ let _xc = x.ceil();
+ let _xf = x.floor();
+ let _xr = x.round();
+ let _xt = x.trunc();
+ let _xfma = x.mul_add(x, x);
+ let _xsqrt = x.sqrt();
+ let _ = x2.abs() * x2;
+}