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added support for _mm_cvtpd_ps / cvtpd2ps

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krampenschiesser 2017-09-28 12:50:09 -04:00 • committed by Alex Crichton
parent 3dba6f3b4d
commit 0511ecbaf0
1 changed files with 27 additions and 0 deletions
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27
library/stdarch/src/x86/sse2.rs
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@ -1718,6 +1718,14 @@ pub unsafe fn _mm_ucomineq_sd(a: f64x2, b: f64x2) -> bool {
mem::transmute(ucomineqsd(a, b) as u8)
}
/// Convert packed double-precision (64-bit) floating-point elements in "a" to packed single-precision (32-bit) floating-point elements
#[inline(always)]
#[target_feature = "+sse2"]
#[cfg_attr(test, assert_instr(cvtpd2ps))]
pub unsafe fn _mm_cvtpd_ps(a: f64x2) -> f32x4 {
cvtpd2ps(a)
}
/// Return a mask of the most significant bit of each element in `a`.
///
/// The mask is stored in the 2 least significant bits of the return value.
@ -1882,6 +1890,8 @@ extern {
fn ucomineqsd(a: f64x2, b: f64x2) -> i32;
#[link_name = "llvm.x86.sse2.movmsk.pd"]
fn movmskpd(a: f64x2) -> i32;
#[link_name = "llvm.x86.sse2.cvtpd2ps"]
fn cvtpd2ps(a: f64x2) -> f32x4;
}
#[cfg(test)]
@ -3406,4 +3416,21 @@ mod tests {
let r = sse2::_mm_movemask_pd(f64x2::new(-1.0, -5.0));
assert_eq!(r, 0b11);
}
#[simd_test = "sse2"]
unsafe fn _mm_cvtpd_ps() {
use std::{f64,f32};
let r = sse2::_mm_cvtpd_ps(f64x2::new(-1.0, 5.0));
assert_eq!(r, f32x4::new(-1.0, 5.0, 0.0, 0.0));
let r = sse2::_mm_cvtpd_ps(f64x2::new(-1.0, -5.0));
assert_eq!(r, f32x4::new(-1.0, -5.0, 0.0, 0.0));
let r = sse2::_mm_cvtpd_ps(f64x2::new(f64::MAX, f64::MIN));
assert_eq!(r, f32x4::new(f32::INFINITY, f32::NEG_INFINITY, 0.0,0.0));
let r = sse2::_mm_cvtpd_ps(f64x2::new(f32::MAX as f64, f32::MIN as f64));
assert_eq!(r, f32x4::new(f32::MAX, f32::MIN, 0.0,0.0));
}
}