Add a floating point test for SIMD div and rem

tests/kani/Intrinsics/SIMD/Operators/division_float.rs

@@ -0,0 +1,40 @@
+// Copyright Kani Contributors
+// SPDX-License-Identifier: Apache-2.0 OR MIT
+
+//! Checks that the `simd_div` intrinsic returns the expected results for floating point numbers.
+//! Checks that the `simd_rem` intrinsic exists.
+#![feature(repr_simd, platform_intrinsics)]
+
+#[repr(simd)]
+#[allow(non_camel_case_types)]
+#[derive(Clone, Copy, PartialEq)]
+pub struct f32x2(f32, f32);
+
+extern "platform-intrinsic" {
+    fn simd_div<T>(x: T, y: T) -> T;
+    fn simd_rem<T>(x: T, y: T) -> T;
+}
+
+#[kani::proof]
+fn test_simd_div() {
+    let dividend: f32 = kani::any::<i8>().into();
+    let divisor: f32 = kani::any::<i8>().into();
+    // Narrow down the divisor interval so the operation finishes in a short time
+    kani::assume(divisor != 0.0 && divisor.abs() < 5.0);
+    let normal_result = dividend / divisor;
+    let dividends = f32x2(dividend, dividend);
+    let divisors = f32x2(divisor, divisor);
+    let simd_result = unsafe { simd_div(dividends, divisors) };
+    assert_eq!(normal_result, simd_result.0);
+}
+
+#[kani::proof]
+fn test_simd_rem() {
+    let dividend: f32 = kani::any::<i8>().into();
+    let divisor: f32 = kani::any::<i8>().into();
+    // Narrow down the divisor interval so the operation finishes in a short time
+    kani::assume(divisor != 0.0 && divisor.abs() < 5.0);
+    let dividends = f32x2(dividend, dividend);
+    let divisors = f32x2(divisor, divisor);
+    let _simd_result = unsafe { simd_rem(dividends, divisors) };
+}