Use simd_fsqrt where possible

bjorn3 · gnzlbg · commit 3a56a176f065 · 2019-12-18T17:41:21.000+01:00
diff --git a/crates/core_arch/src/x86/avx.rs b/crates/core_arch/src/x86/avx.rs
@@ -513,7 +513,7 @@ pub unsafe fn _mm256_sqrt_ps(a: __m256) -> __m256 {
 #[cfg_attr(test, assert_instr(vsqrtpd))]
 #[stable(feature = "simd_x86", since = "1.27.0")]
 pub unsafe fn _mm256_sqrt_pd(a: __m256d) -> __m256d {
-    sqrtpd256(a)
+    simd_fsqrt(a)
 }
 
 /// Blends packed double-precision (64-bit) floating-point elements from
diff --git a/crates/core_arch/src/x86/sse2.rs b/crates/core_arch/src/x86/sse2.rs
@@ -1823,7 +1823,7 @@ pub unsafe fn _mm_sqrt_sd(a: __m128d, b: __m128d) -> __m128d {
 #[cfg_attr(test, assert_instr(sqrtpd))]
 #[stable(feature = "simd_x86", since = "1.27.0")]
 pub unsafe fn _mm_sqrt_pd(a: __m128d) -> __m128d {
-    sqrtpd(a)
+    simd_fsqrt(a)
 }
 
 /// Returns a new vector with the low element of `a` replaced by subtracting the

Original file line number	Diff line number	Diff line change
`@@ -513,7 +513,7 @@ pub unsafe fn _mm256_sqrt_ps(a: __m256) -> __m256 {`
`513`	`513`	`#[cfg_attr(test, assert_instr(vsqrtpd))]`
`514`	`514`	`#[stable(feature = "simd_x86", since = "1.27.0")]`
`515`	`515`	`pub unsafe fn _mm256_sqrt_pd(a: __m256d) -> __m256d {`
`516`		`- sqrtpd256(a)`
	`516`	`+ simd_fsqrt(a)`
`517`	`517`	`}`
`518`	`518`
`519`	`519`	`/// Blends packed double-precision (64-bit) floating-point elements from`
Original file line number	Diff line number	Diff line change
`@@ -1823,7 +1823,7 @@ pub unsafe fn _mm_sqrt_sd(a: __m128d, b: __m128d) -> __m128d {`
`1823`	`1823`	`#[cfg_attr(test, assert_instr(sqrtpd))]`
`1824`	`1824`	`#[stable(feature = "simd_x86", since = "1.27.0")]`
`1825`	`1825`	`pub unsafe fn _mm_sqrt_pd(a: __m128d) -> __m128d {`
`1826`		`- sqrtpd(a)`
	`1826`	`+ simd_fsqrt(a)`
`1827`	`1827`	`}`
`1828`	`1828`
`1829`	`1829`	/// Returns a new vector with the low element of `a` replaced by subtracting the