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| </pre><pre class="rust"><code><span class="comment">// Copyright 2018 Developers of the Rand project.</span> |
| <span class="comment">//</span> |
| <span class="comment">// Licensed under the Apache License, Version 2.0 <LICENSE-APACHE or</span> |
| <span class="comment">// https://www.apache.org/licenses/LICENSE-2.0> or the MIT license</span> |
| <span class="comment">// <LICENSE-MIT or https://opensource.org/licenses/MIT>, at your</span> |
| <span class="comment">// option. This file may not be copied, modified, or distributed</span> |
| <span class="comment">// except according to those terms.</span> |
| |
| <span class="doccomment">//! Math helper functions</span> |
| |
| <span class="attribute">#[<span class="ident">cfg</span>(<span class="ident">feature</span> <span class="op">=</span> <span class="string">"simd_support"</span>)]</span> <span class="kw">use</span> <span class="ident">packed_simd</span>::<span class="kw-2">*</span>; |
| |
| |
| <span class="kw">pub</span>(<span class="kw">crate</span>) <span class="kw">trait</span> <span class="ident">WideningMultiply</span><span class="op"><</span><span class="ident">RHS</span> <span class="op">=</span> <span class="self">Self</span><span class="op">></span> { |
| <span class="kw">type</span> <span class="ident">Output</span>; |
| |
| <span class="kw">fn</span> <span class="ident">wmul</span>(<span class="self">self</span>, <span class="ident">x</span>: <span class="ident">RHS</span>) -> <span class="ident"><span class="self">Self</span>::Output</span>; |
| } |
| |
| <span class="macro">macro_rules!</span> <span class="ident">wmul_impl</span> { |
| (<span class="macro-nonterminal">$</span><span class="macro-nonterminal">ty</span>:<span class="ident">ty</span>, <span class="macro-nonterminal">$</span><span class="macro-nonterminal">wide</span>:<span class="ident">ty</span>, <span class="macro-nonterminal">$</span><span class="macro-nonterminal">shift</span>:<span class="ident">expr</span>) => { |
| <span class="kw">impl</span> <span class="ident">WideningMultiply</span> <span class="kw">for</span> <span class="macro-nonterminal">$</span><span class="macro-nonterminal">ty</span> { |
| <span class="kw">type</span> <span class="ident">Output</span> <span class="op">=</span> (<span class="macro-nonterminal">$</span><span class="macro-nonterminal">ty</span>, <span class="macro-nonterminal">$</span><span class="macro-nonterminal">ty</span>); |
| |
| <span class="attribute">#[<span class="ident">inline</span>(<span class="ident">always</span>)]</span> |
| <span class="kw">fn</span> <span class="ident">wmul</span>(<span class="self">self</span>, <span class="ident">x</span>: <span class="macro-nonterminal">$</span><span class="macro-nonterminal">ty</span>) -> <span class="ident"><span class="self">Self</span>::Output</span> { |
| <span class="kw">let</span> <span class="ident">tmp</span> <span class="op">=</span> (<span class="self">self</span> <span class="kw">as</span> <span class="macro-nonterminal">$</span><span class="macro-nonterminal">wide</span>) <span class="op">*</span> (<span class="ident">x</span> <span class="kw">as</span> <span class="macro-nonterminal">$</span><span class="macro-nonterminal">wide</span>); |
| ((<span class="ident">tmp</span> <span class="op">></span><span class="op">></span> <span class="macro-nonterminal">$</span><span class="macro-nonterminal">shift</span>) <span class="kw">as</span> <span class="macro-nonterminal">$</span><span class="macro-nonterminal">ty</span>, <span class="ident">tmp</span> <span class="kw">as</span> <span class="macro-nonterminal">$</span><span class="macro-nonterminal">ty</span>) |
| } |
| } |
| }; |
| |
| <span class="comment">// simd bulk implementation</span> |
| ($((<span class="macro-nonterminal">$</span><span class="macro-nonterminal">ty</span>:<span class="ident">ident</span>, <span class="macro-nonterminal">$</span><span class="macro-nonterminal">wide</span>:<span class="ident">ident</span>),)<span class="op">+</span>, <span class="macro-nonterminal">$</span><span class="macro-nonterminal">shift</span>:<span class="ident">expr</span>) => { |
| $( |
| <span class="kw">impl</span> <span class="ident">WideningMultiply</span> <span class="kw">for</span> <span class="macro-nonterminal">$</span><span class="macro-nonterminal">ty</span> { |
| <span class="kw">type</span> <span class="ident">Output</span> <span class="op">=</span> (<span class="macro-nonterminal">$</span><span class="macro-nonterminal">ty</span>, <span class="macro-nonterminal">$</span><span class="macro-nonterminal">ty</span>); |
| |
| <span class="attribute">#[<span class="ident">inline</span>(<span class="ident">always</span>)]</span> |
| <span class="kw">fn</span> <span class="ident">wmul</span>(<span class="self">self</span>, <span class="ident">x</span>: <span class="macro-nonterminal">$</span><span class="macro-nonterminal">ty</span>) -> <span class="ident"><span class="self">Self</span>::Output</span> { |
| <span class="comment">// For supported vectors, this should compile to a couple</span> |
| <span class="comment">// supported multiply & swizzle instructions (no actual</span> |
| <span class="comment">// casting).</span> |
| <span class="comment">// TODO: optimize</span> |
| <span class="kw">let</span> <span class="ident">y</span>: <span class="macro-nonterminal">$</span><span class="macro-nonterminal">wide</span> <span class="op">=</span> <span class="self">self</span>.<span class="ident">cast</span>(); |
| <span class="kw">let</span> <span class="ident">x</span>: <span class="macro-nonterminal">$</span><span class="macro-nonterminal">wide</span> <span class="op">=</span> <span class="ident">x</span>.<span class="ident">cast</span>(); |
| <span class="kw">let</span> <span class="ident">tmp</span> <span class="op">=</span> <span class="ident">y</span> <span class="op">*</span> <span class="ident">x</span>; |
| <span class="kw">let</span> <span class="ident">hi</span>: <span class="macro-nonterminal">$</span><span class="macro-nonterminal">ty</span> <span class="op">=</span> (<span class="ident">tmp</span> <span class="op">></span><span class="op">></span> <span class="macro-nonterminal">$</span><span class="macro-nonterminal">shift</span>).<span class="ident">cast</span>(); |
| <span class="kw">let</span> <span class="ident">lo</span>: <span class="macro-nonterminal">$</span><span class="macro-nonterminal">ty</span> <span class="op">=</span> <span class="ident">tmp</span>.<span class="ident">cast</span>(); |
| (<span class="ident">hi</span>, <span class="ident">lo</span>) |
| } |
| } |
| )<span class="op">+</span> |
| }; |
| } |
| <span class="macro">wmul_impl!</span> { <span class="ident">u8</span>, <span class="ident">u16</span>, <span class="number">8</span> } |
| <span class="macro">wmul_impl!</span> { <span class="ident">u16</span>, <span class="ident">u32</span>, <span class="number">16</span> } |
| <span class="macro">wmul_impl!</span> { <span class="ident">u32</span>, <span class="ident">u64</span>, <span class="number">32</span> } |
| <span class="macro">wmul_impl!</span> { <span class="ident">u64</span>, <span class="ident">u128</span>, <span class="number">64</span> } |
| |
| <span class="comment">// This code is a translation of the __mulddi3 function in LLVM's</span> |
| <span class="comment">// compiler-rt. It is an optimised variant of the common method</span> |
| <span class="comment">// `(a + b) * (c + d) = ac + ad + bc + bd`.</span> |
| <span class="comment">//</span> |
| <span class="comment">// For some reason LLVM can optimise the C version very well, but</span> |
| <span class="comment">// keeps shuffling registers in this Rust translation.</span> |
| <span class="macro">macro_rules!</span> <span class="ident">wmul_impl_large</span> { |
| (<span class="macro-nonterminal">$</span><span class="macro-nonterminal">ty</span>:<span class="ident">ty</span>, <span class="macro-nonterminal">$</span><span class="macro-nonterminal">half</span>:<span class="ident">expr</span>) => { |
| <span class="kw">impl</span> <span class="ident">WideningMultiply</span> <span class="kw">for</span> <span class="macro-nonterminal">$</span><span class="macro-nonterminal">ty</span> { |
| <span class="kw">type</span> <span class="ident">Output</span> <span class="op">=</span> (<span class="macro-nonterminal">$</span><span class="macro-nonterminal">ty</span>, <span class="macro-nonterminal">$</span><span class="macro-nonterminal">ty</span>); |
| |
| <span class="attribute">#[<span class="ident">inline</span>(<span class="ident">always</span>)]</span> |
| <span class="kw">fn</span> <span class="ident">wmul</span>(<span class="self">self</span>, <span class="ident">b</span>: <span class="macro-nonterminal">$</span><span class="macro-nonterminal">ty</span>) -> <span class="ident"><span class="self">Self</span>::Output</span> { |
| <span class="kw">const</span> <span class="ident">LOWER_MASK</span>: <span class="macro-nonterminal">$</span><span class="macro-nonterminal">ty</span> <span class="op">=</span> <span class="op">!</span><span class="number">0</span> <span class="op">></span><span class="op">></span> <span class="macro-nonterminal">$</span><span class="macro-nonterminal">half</span>; |
| <span class="kw">let</span> <span class="kw-2">mut</span> <span class="ident">low</span> <span class="op">=</span> (<span class="self">self</span> <span class="op">&</span> <span class="ident">LOWER_MASK</span>).<span class="ident">wrapping_mul</span>(<span class="ident">b</span> <span class="op">&</span> <span class="ident">LOWER_MASK</span>); |
| <span class="kw">let</span> <span class="kw-2">mut</span> <span class="ident">t</span> <span class="op">=</span> <span class="ident">low</span> <span class="op">></span><span class="op">></span> <span class="macro-nonterminal">$</span><span class="macro-nonterminal">half</span>; |
| <span class="ident">low</span> <span class="op">&=</span> <span class="ident">LOWER_MASK</span>; |
| <span class="ident">t</span> <span class="op">+</span><span class="op">=</span> (<span class="self">self</span> <span class="op">></span><span class="op">></span> <span class="macro-nonterminal">$</span><span class="macro-nonterminal">half</span>).<span class="ident">wrapping_mul</span>(<span class="ident">b</span> <span class="op">&</span> <span class="ident">LOWER_MASK</span>); |
| <span class="ident">low</span> <span class="op">+</span><span class="op">=</span> (<span class="ident">t</span> <span class="op">&</span> <span class="ident">LOWER_MASK</span>) <span class="op"><</span><span class="op"><</span> <span class="macro-nonterminal">$</span><span class="macro-nonterminal">half</span>; |
| <span class="kw">let</span> <span class="kw-2">mut</span> <span class="ident">high</span> <span class="op">=</span> <span class="ident">t</span> <span class="op">></span><span class="op">></span> <span class="macro-nonterminal">$</span><span class="macro-nonterminal">half</span>; |
| <span class="ident">t</span> <span class="op">=</span> <span class="ident">low</span> <span class="op">></span><span class="op">></span> <span class="macro-nonterminal">$</span><span class="macro-nonterminal">half</span>; |
| <span class="ident">low</span> <span class="op">&=</span> <span class="ident">LOWER_MASK</span>; |
| <span class="ident">t</span> <span class="op">+</span><span class="op">=</span> (<span class="ident">b</span> <span class="op">></span><span class="op">></span> <span class="macro-nonterminal">$</span><span class="macro-nonterminal">half</span>).<span class="ident">wrapping_mul</span>(<span class="self">self</span> <span class="op">&</span> <span class="ident">LOWER_MASK</span>); |
| <span class="ident">low</span> <span class="op">+</span><span class="op">=</span> (<span class="ident">t</span> <span class="op">&</span> <span class="ident">LOWER_MASK</span>) <span class="op"><</span><span class="op"><</span> <span class="macro-nonterminal">$</span><span class="macro-nonterminal">half</span>; |
| <span class="ident">high</span> <span class="op">+</span><span class="op">=</span> <span class="ident">t</span> <span class="op">></span><span class="op">></span> <span class="macro-nonterminal">$</span><span class="macro-nonterminal">half</span>; |
| <span class="ident">high</span> <span class="op">+</span><span class="op">=</span> (<span class="self">self</span> <span class="op">></span><span class="op">></span> <span class="macro-nonterminal">$</span><span class="macro-nonterminal">half</span>).<span class="ident">wrapping_mul</span>(<span class="ident">b</span> <span class="op">></span><span class="op">></span> <span class="macro-nonterminal">$</span><span class="macro-nonterminal">half</span>); |
| |
| (<span class="ident">high</span>, <span class="ident">low</span>) |
| } |
| } |
| }; |
| |
| <span class="comment">// simd bulk implementation</span> |
| (($(<span class="macro-nonterminal">$</span><span class="macro-nonterminal">ty</span>:<span class="ident">ty</span>,)<span class="op">+</span>) <span class="macro-nonterminal">$</span><span class="macro-nonterminal">scalar</span>:<span class="ident">ty</span>, <span class="macro-nonterminal">$</span><span class="macro-nonterminal">half</span>:<span class="ident">expr</span>) => { |
| $( |
| <span class="kw">impl</span> <span class="ident">WideningMultiply</span> <span class="kw">for</span> <span class="macro-nonterminal">$</span><span class="macro-nonterminal">ty</span> { |
| <span class="kw">type</span> <span class="ident">Output</span> <span class="op">=</span> (<span class="macro-nonterminal">$</span><span class="macro-nonterminal">ty</span>, <span class="macro-nonterminal">$</span><span class="macro-nonterminal">ty</span>); |
| |
| <span class="attribute">#[<span class="ident">inline</span>(<span class="ident">always</span>)]</span> |
| <span class="kw">fn</span> <span class="ident">wmul</span>(<span class="self">self</span>, <span class="ident">b</span>: <span class="macro-nonterminal">$</span><span class="macro-nonterminal">ty</span>) -> <span class="ident"><span class="self">Self</span>::Output</span> { |
| <span class="comment">// needs wrapping multiplication</span> |
| <span class="kw">const</span> <span class="ident">LOWER_MASK</span>: <span class="macro-nonterminal">$</span><span class="macro-nonterminal">scalar</span> <span class="op">=</span> <span class="op">!</span><span class="number">0</span> <span class="op">></span><span class="op">></span> <span class="macro-nonterminal">$</span><span class="macro-nonterminal">half</span>; |
| <span class="kw">let</span> <span class="kw-2">mut</span> <span class="ident">low</span> <span class="op">=</span> (<span class="self">self</span> <span class="op">&</span> <span class="ident">LOWER_MASK</span>) <span class="op">*</span> (<span class="ident">b</span> <span class="op">&</span> <span class="ident">LOWER_MASK</span>); |
| <span class="kw">let</span> <span class="kw-2">mut</span> <span class="ident">t</span> <span class="op">=</span> <span class="ident">low</span> <span class="op">></span><span class="op">></span> <span class="macro-nonterminal">$</span><span class="macro-nonterminal">half</span>; |
| <span class="ident">low</span> <span class="op">&=</span> <span class="ident">LOWER_MASK</span>; |
| <span class="ident">t</span> <span class="op">+</span><span class="op">=</span> (<span class="self">self</span> <span class="op">></span><span class="op">></span> <span class="macro-nonterminal">$</span><span class="macro-nonterminal">half</span>) <span class="op">*</span> (<span class="ident">b</span> <span class="op">&</span> <span class="ident">LOWER_MASK</span>); |
| <span class="ident">low</span> <span class="op">+</span><span class="op">=</span> (<span class="ident">t</span> <span class="op">&</span> <span class="ident">LOWER_MASK</span>) <span class="op"><</span><span class="op"><</span> <span class="macro-nonterminal">$</span><span class="macro-nonterminal">half</span>; |
| <span class="kw">let</span> <span class="kw-2">mut</span> <span class="ident">high</span> <span class="op">=</span> <span class="ident">t</span> <span class="op">></span><span class="op">></span> <span class="macro-nonterminal">$</span><span class="macro-nonterminal">half</span>; |
| <span class="ident">t</span> <span class="op">=</span> <span class="ident">low</span> <span class="op">></span><span class="op">></span> <span class="macro-nonterminal">$</span><span class="macro-nonterminal">half</span>; |
| <span class="ident">low</span> <span class="op">&=</span> <span class="ident">LOWER_MASK</span>; |
| <span class="ident">t</span> <span class="op">+</span><span class="op">=</span> (<span class="ident">b</span> <span class="op">></span><span class="op">></span> <span class="macro-nonterminal">$</span><span class="macro-nonterminal">half</span>) <span class="op">*</span> (<span class="self">self</span> <span class="op">&</span> <span class="ident">LOWER_MASK</span>); |
| <span class="ident">low</span> <span class="op">+</span><span class="op">=</span> (<span class="ident">t</span> <span class="op">&</span> <span class="ident">LOWER_MASK</span>) <span class="op"><</span><span class="op"><</span> <span class="macro-nonterminal">$</span><span class="macro-nonterminal">half</span>; |
| <span class="ident">high</span> <span class="op">+</span><span class="op">=</span> <span class="ident">t</span> <span class="op">></span><span class="op">></span> <span class="macro-nonterminal">$</span><span class="macro-nonterminal">half</span>; |
| <span class="ident">high</span> <span class="op">+</span><span class="op">=</span> (<span class="self">self</span> <span class="op">></span><span class="op">></span> <span class="macro-nonterminal">$</span><span class="macro-nonterminal">half</span>) <span class="op">*</span> (<span class="ident">b</span> <span class="op">></span><span class="op">></span> <span class="macro-nonterminal">$</span><span class="macro-nonterminal">half</span>); |
| |
| (<span class="ident">high</span>, <span class="ident">low</span>) |
| } |
| } |
| )<span class="op">+</span> |
| }; |
| } |
| <span class="macro">wmul_impl_large!</span> { <span class="ident">u128</span>, <span class="number">64</span> } |
| |
| <span class="macro">macro_rules!</span> <span class="ident">wmul_impl_usize</span> { |
| (<span class="macro-nonterminal">$</span><span class="macro-nonterminal">ty</span>:<span class="ident">ty</span>) => { |
| <span class="kw">impl</span> <span class="ident">WideningMultiply</span> <span class="kw">for</span> <span class="ident">usize</span> { |
| <span class="kw">type</span> <span class="ident">Output</span> <span class="op">=</span> (<span class="ident">usize</span>, <span class="ident">usize</span>); |
| |
| <span class="attribute">#[<span class="ident">inline</span>(<span class="ident">always</span>)]</span> |
| <span class="kw">fn</span> <span class="ident">wmul</span>(<span class="self">self</span>, <span class="ident">x</span>: <span class="ident">usize</span>) -> <span class="ident"><span class="self">Self</span>::Output</span> { |
| <span class="kw">let</span> (<span class="ident">high</span>, <span class="ident">low</span>) <span class="op">=</span> (<span class="self">self</span> <span class="kw">as</span> <span class="macro-nonterminal">$</span><span class="macro-nonterminal">ty</span>).<span class="ident">wmul</span>(<span class="ident">x</span> <span class="kw">as</span> <span class="macro-nonterminal">$</span><span class="macro-nonterminal">ty</span>); |
| (<span class="ident">high</span> <span class="kw">as</span> <span class="ident">usize</span>, <span class="ident">low</span> <span class="kw">as</span> <span class="ident">usize</span>) |
| } |
| } |
| }; |
| } |
| <span class="attribute">#[<span class="ident">cfg</span>(<span class="ident">target_pointer_width</span> <span class="op">=</span> <span class="string">"16"</span>)]</span> |
| <span class="macro">wmul_impl_usize!</span> { <span class="ident">u16</span> } |
| <span class="attribute">#[<span class="ident">cfg</span>(<span class="ident">target_pointer_width</span> <span class="op">=</span> <span class="string">"32"</span>)]</span> |
| <span class="macro">wmul_impl_usize!</span> { <span class="ident">u32</span> } |
| <span class="attribute">#[<span class="ident">cfg</span>(<span class="ident">target_pointer_width</span> <span class="op">=</span> <span class="string">"64"</span>)]</span> |
| <span class="macro">wmul_impl_usize!</span> { <span class="ident">u64</span> } |
| |
| <span class="attribute">#[<span class="ident">cfg</span>(<span class="ident">feature</span> <span class="op">=</span> <span class="string">"simd_support"</span>)]</span> |
| <span class="kw">mod</span> <span class="ident">simd_wmul</span> { |
| <span class="kw">use</span> <span class="kw">super</span>::<span class="kw-2">*</span>; |
| <span class="attribute">#[<span class="ident">cfg</span>(<span class="ident">target_arch</span> <span class="op">=</span> <span class="string">"x86"</span>)]</span> <span class="kw">use</span> <span class="ident">core::arch::x86</span>::<span class="kw-2">*</span>; |
| <span class="attribute">#[<span class="ident">cfg</span>(<span class="ident">target_arch</span> <span class="op">=</span> <span class="string">"x86_64"</span>)]</span> <span class="kw">use</span> <span class="ident">core::arch::x86_64</span>::<span class="kw-2">*</span>; |
| |
| <span class="macro">wmul_impl!</span> { |
| (<span class="ident">u8x2</span>, <span class="ident">u16x2</span>), |
| (<span class="ident">u8x4</span>, <span class="ident">u16x4</span>), |
| (<span class="ident">u8x8</span>, <span class="ident">u16x8</span>), |
| (<span class="ident">u8x16</span>, <span class="ident">u16x16</span>), |
| (<span class="ident">u8x32</span>, <span class="ident">u16x32</span>),, |
| <span class="number">8</span> |
| } |
| |
| <span class="macro">wmul_impl!</span> { (<span class="ident">u16x2</span>, <span class="ident">u32x2</span>),, <span class="number">16</span> } |
| <span class="macro">wmul_impl!</span> { (<span class="ident">u16x4</span>, <span class="ident">u32x4</span>),, <span class="number">16</span> } |
| <span class="attribute">#[<span class="ident">cfg</span>(<span class="ident">not</span>(<span class="ident">target_feature</span> <span class="op">=</span> <span class="string">"sse2"</span>))]</span> |
| <span class="macro">wmul_impl!</span> { (<span class="ident">u16x8</span>, <span class="ident">u32x8</span>),, <span class="number">16</span> } |
| <span class="attribute">#[<span class="ident">cfg</span>(<span class="ident">not</span>(<span class="ident">target_feature</span> <span class="op">=</span> <span class="string">"avx2"</span>))]</span> |
| <span class="macro">wmul_impl!</span> { (<span class="ident">u16x16</span>, <span class="ident">u32x16</span>),, <span class="number">16</span> } |
| |
| <span class="comment">// 16-bit lane widths allow use of the x86 `mulhi` instructions, which</span> |
| <span class="comment">// means `wmul` can be implemented with only two instructions.</span> |
| <span class="attribute">#[<span class="ident">allow</span>(<span class="ident">unused_macros</span>)]</span> |
| <span class="macro">macro_rules!</span> <span class="ident">wmul_impl_16</span> { |
| (<span class="macro-nonterminal">$</span><span class="macro-nonterminal">ty</span>:<span class="ident">ident</span>, <span class="macro-nonterminal">$</span><span class="macro-nonterminal">intrinsic</span>:<span class="ident">ident</span>, <span class="macro-nonterminal">$</span><span class="macro-nonterminal">mulhi</span>:<span class="ident">ident</span>, <span class="macro-nonterminal">$</span><span class="macro-nonterminal">mullo</span>:<span class="ident">ident</span>) => { |
| <span class="kw">impl</span> <span class="ident">WideningMultiply</span> <span class="kw">for</span> <span class="macro-nonterminal">$</span><span class="macro-nonterminal">ty</span> { |
| <span class="kw">type</span> <span class="ident">Output</span> <span class="op">=</span> (<span class="macro-nonterminal">$</span><span class="macro-nonterminal">ty</span>, <span class="macro-nonterminal">$</span><span class="macro-nonterminal">ty</span>); |
| |
| <span class="attribute">#[<span class="ident">inline</span>(<span class="ident">always</span>)]</span> |
| <span class="kw">fn</span> <span class="ident">wmul</span>(<span class="self">self</span>, <span class="ident">x</span>: <span class="macro-nonterminal">$</span><span class="macro-nonterminal">ty</span>) -> <span class="ident"><span class="self">Self</span>::Output</span> { |
| <span class="kw">let</span> <span class="ident">b</span> <span class="op">=</span> <span class="macro-nonterminal">$</span><span class="macro-nonterminal">intrinsic::from_bits</span>(<span class="ident">x</span>); |
| <span class="kw">let</span> <span class="ident">a</span> <span class="op">=</span> <span class="macro-nonterminal">$</span><span class="macro-nonterminal">intrinsic::from_bits</span>(<span class="self">self</span>); |
| <span class="kw">let</span> <span class="ident">hi</span> <span class="op">=</span> <span class="macro-nonterminal">$</span><span class="macro-nonterminal">ty::from_bits</span>(<span class="kw">unsafe</span> { <span class="macro-nonterminal">$</span><span class="macro-nonterminal">mulhi</span>(<span class="ident">a</span>, <span class="ident">b</span>) }); |
| <span class="kw">let</span> <span class="ident">lo</span> <span class="op">=</span> <span class="macro-nonterminal">$</span><span class="macro-nonterminal">ty::from_bits</span>(<span class="kw">unsafe</span> { <span class="macro-nonterminal">$</span><span class="macro-nonterminal">mullo</span>(<span class="ident">a</span>, <span class="ident">b</span>) }); |
| (<span class="ident">hi</span>, <span class="ident">lo</span>) |
| } |
| } |
| }; |
| } |
| |
| <span class="attribute">#[<span class="ident">cfg</span>(<span class="ident">target_feature</span> <span class="op">=</span> <span class="string">"sse2"</span>)]</span> |
| <span class="macro">wmul_impl_16!</span> { <span class="ident">u16x8</span>, <span class="ident">__m128i</span>, <span class="ident">_mm_mulhi_epu16</span>, <span class="ident">_mm_mullo_epi16</span> } |
| <span class="attribute">#[<span class="ident">cfg</span>(<span class="ident">target_feature</span> <span class="op">=</span> <span class="string">"avx2"</span>)]</span> |
| <span class="macro">wmul_impl_16!</span> { <span class="ident">u16x16</span>, <span class="ident">__m256i</span>, <span class="ident">_mm256_mulhi_epu16</span>, <span class="ident">_mm256_mullo_epi16</span> } |
| <span class="comment">// FIXME: there are no `__m512i` types in stdsimd yet, so `wmul::<u16x32>`</span> |
| <span class="comment">// cannot use the same implementation.</span> |
| |
| <span class="macro">wmul_impl!</span> { |
| (<span class="ident">u32x2</span>, <span class="ident">u64x2</span>), |
| (<span class="ident">u32x4</span>, <span class="ident">u64x4</span>), |
| (<span class="ident">u32x8</span>, <span class="ident">u64x8</span>),, |
| <span class="number">32</span> |
| } |
| |
| <span class="comment">// TODO: optimize, this seems to seriously slow things down</span> |
| <span class="macro">wmul_impl_large!</span> { (<span class="ident">u8x64</span>,) <span class="ident">u8</span>, <span class="number">4</span> } |
| <span class="macro">wmul_impl_large!</span> { (<span class="ident">u16x32</span>,) <span class="ident">u16</span>, <span class="number">8</span> } |
| <span class="macro">wmul_impl_large!</span> { (<span class="ident">u32x16</span>,) <span class="ident">u32</span>, <span class="number">16</span> } |
| <span class="macro">wmul_impl_large!</span> { (<span class="ident">u64x2</span>, <span class="ident">u64x4</span>, <span class="ident">u64x8</span>,) <span class="ident">u64</span>, <span class="number">32</span> } |
| } |
| |
| <span class="doccomment">/// Helper trait when dealing with scalar and SIMD floating point types.</span> |
| <span class="kw">pub</span>(<span class="kw">crate</span>) <span class="kw">trait</span> <span class="ident">FloatSIMDUtils</span> { |
| <span class="comment">// `PartialOrd` for vectors compares lexicographically. We want to compare all</span> |
| <span class="comment">// the individual SIMD lanes instead, and get the combined result over all</span> |
| <span class="comment">// lanes. This is possible using something like `a.lt(b).all()`, but we</span> |
| <span class="comment">// implement it as a trait so we can write the same code for `f32` and `f64`.</span> |
| <span class="comment">// Only the comparison functions we need are implemented.</span> |
| <span class="kw">fn</span> <span class="ident">all_lt</span>(<span class="self">self</span>, <span class="ident">other</span>: <span class="self">Self</span>) -> <span class="ident">bool</span>; |
| <span class="kw">fn</span> <span class="ident">all_le</span>(<span class="self">self</span>, <span class="ident">other</span>: <span class="self">Self</span>) -> <span class="ident">bool</span>; |
| <span class="kw">fn</span> <span class="ident">all_finite</span>(<span class="self">self</span>) -> <span class="ident">bool</span>; |
| |
| <span class="kw">type</span> <span class="ident">Mask</span>; |
| <span class="kw">fn</span> <span class="ident">finite_mask</span>(<span class="self">self</span>) -> <span class="ident"><span class="self">Self</span>::Mask</span>; |
| <span class="kw">fn</span> <span class="ident">gt_mask</span>(<span class="self">self</span>, <span class="ident">other</span>: <span class="self">Self</span>) -> <span class="ident"><span class="self">Self</span>::Mask</span>; |
| <span class="kw">fn</span> <span class="ident">ge_mask</span>(<span class="self">self</span>, <span class="ident">other</span>: <span class="self">Self</span>) -> <span class="ident"><span class="self">Self</span>::Mask</span>; |
| |
| <span class="comment">// Decrease all lanes where the mask is `true` to the next lower value</span> |
| <span class="comment">// representable by the floating-point type. At least one of the lanes</span> |
| <span class="comment">// must be set.</span> |
| <span class="kw">fn</span> <span class="ident">decrease_masked</span>(<span class="self">self</span>, <span class="ident">mask</span>: <span class="ident"><span class="self">Self</span>::Mask</span>) -> <span class="self">Self</span>; |
| |
| <span class="comment">// Convert from int value. Conversion is done while retaining the numerical</span> |
| <span class="comment">// value, not by retaining the binary representation.</span> |
| <span class="kw">type</span> <span class="ident">UInt</span>; |
| <span class="kw">fn</span> <span class="ident">cast_from_int</span>(<span class="ident">i</span>: <span class="ident"><span class="self">Self</span>::UInt</span>) -> <span class="self">Self</span>; |
| } |
| |
| <span class="doccomment">/// Implement functions available in std builds but missing from core primitives</span> |
| <span class="attribute">#[<span class="ident">cfg</span>(<span class="ident">not</span>(<span class="ident">std</span>))]</span> |
| <span class="comment">// False positive: We are following `std` here.</span> |
| <span class="attribute">#[<span class="ident">allow</span>(<span class="ident">clippy::wrong_self_convention</span>)]</span> |
| <span class="kw">pub</span>(<span class="kw">crate</span>) <span class="kw">trait</span> <span class="ident">Float</span>: <span class="ident">Sized</span> { |
| <span class="kw">fn</span> <span class="ident">is_nan</span>(<span class="self">self</span>) -> <span class="ident">bool</span>; |
| <span class="kw">fn</span> <span class="ident">is_infinite</span>(<span class="self">self</span>) -> <span class="ident">bool</span>; |
| <span class="kw">fn</span> <span class="ident">is_finite</span>(<span class="self">self</span>) -> <span class="ident">bool</span>; |
| } |
| |
| <span class="doccomment">/// Implement functions on f32/f64 to give them APIs similar to SIMD types</span> |
| <span class="kw">pub</span>(<span class="kw">crate</span>) <span class="kw">trait</span> <span class="ident">FloatAsSIMD</span>: <span class="ident">Sized</span> { |
| <span class="attribute">#[<span class="ident">inline</span>(<span class="ident">always</span>)]</span> |
| <span class="kw">fn</span> <span class="ident">lanes</span>() -> <span class="ident">usize</span> { |
| <span class="number">1</span> |
| } |
| <span class="attribute">#[<span class="ident">inline</span>(<span class="ident">always</span>)]</span> |
| <span class="kw">fn</span> <span class="ident">splat</span>(<span class="ident">scalar</span>: <span class="self">Self</span>) -> <span class="self">Self</span> { |
| <span class="ident">scalar</span> |
| } |
| <span class="attribute">#[<span class="ident">inline</span>(<span class="ident">always</span>)]</span> |
| <span class="kw">fn</span> <span class="ident">extract</span>(<span class="self">self</span>, <span class="ident">index</span>: <span class="ident">usize</span>) -> <span class="self">Self</span> { |
| <span class="macro">debug_assert_eq!</span>(<span class="ident">index</span>, <span class="number">0</span>); |
| <span class="self">self</span> |
| } |
| <span class="attribute">#[<span class="ident">inline</span>(<span class="ident">always</span>)]</span> |
| <span class="kw">fn</span> <span class="ident">replace</span>(<span class="self">self</span>, <span class="ident">index</span>: <span class="ident">usize</span>, <span class="ident">new_value</span>: <span class="self">Self</span>) -> <span class="self">Self</span> { |
| <span class="macro">debug_assert_eq!</span>(<span class="ident">index</span>, <span class="number">0</span>); |
| <span class="ident">new_value</span> |
| } |
| } |
| |
| <span class="kw">pub</span>(<span class="kw">crate</span>) <span class="kw">trait</span> <span class="ident">BoolAsSIMD</span>: <span class="ident">Sized</span> { |
| <span class="kw">fn</span> <span class="ident">any</span>(<span class="self">self</span>) -> <span class="ident">bool</span>; |
| <span class="kw">fn</span> <span class="ident">all</span>(<span class="self">self</span>) -> <span class="ident">bool</span>; |
| <span class="kw">fn</span> <span class="ident">none</span>(<span class="self">self</span>) -> <span class="ident">bool</span>; |
| } |
| |
| <span class="kw">impl</span> <span class="ident">BoolAsSIMD</span> <span class="kw">for</span> <span class="ident">bool</span> { |
| <span class="attribute">#[<span class="ident">inline</span>(<span class="ident">always</span>)]</span> |
| <span class="kw">fn</span> <span class="ident">any</span>(<span class="self">self</span>) -> <span class="ident">bool</span> { |
| <span class="self">self</span> |
| } |
| |
| <span class="attribute">#[<span class="ident">inline</span>(<span class="ident">always</span>)]</span> |
| <span class="kw">fn</span> <span class="ident">all</span>(<span class="self">self</span>) -> <span class="ident">bool</span> { |
| <span class="self">self</span> |
| } |
| |
| <span class="attribute">#[<span class="ident">inline</span>(<span class="ident">always</span>)]</span> |
| <span class="kw">fn</span> <span class="ident">none</span>(<span class="self">self</span>) -> <span class="ident">bool</span> { |
| <span class="op">!</span><span class="self">self</span> |
| } |
| } |
| |
| <span class="macro">macro_rules!</span> <span class="ident">scalar_float_impl</span> { |
| (<span class="macro-nonterminal">$</span><span class="macro-nonterminal">ty</span>:<span class="ident">ident</span>, <span class="macro-nonterminal">$</span><span class="macro-nonterminal">uty</span>:<span class="ident">ident</span>) => { |
| <span class="attribute">#[<span class="ident">cfg</span>(<span class="ident">not</span>(<span class="ident">std</span>))]</span> |
| <span class="kw">impl</span> <span class="ident">Float</span> <span class="kw">for</span> <span class="macro-nonterminal">$</span><span class="macro-nonterminal">ty</span> { |
| <span class="attribute">#[<span class="ident">inline</span>]</span> |
| <span class="kw">fn</span> <span class="ident">is_nan</span>(<span class="self">self</span>) -> <span class="ident">bool</span> { |
| <span class="self">self</span> <span class="op">!</span><span class="op">=</span> <span class="self">self</span> |
| } |
| |
| <span class="attribute">#[<span class="ident">inline</span>]</span> |
| <span class="kw">fn</span> <span class="ident">is_infinite</span>(<span class="self">self</span>) -> <span class="ident">bool</span> { |
| <span class="self">self</span> <span class="op">==</span> <span class="ident">::core</span>::<span class="macro-nonterminal">$</span><span class="macro-nonterminal">ty::INFINITY</span> <span class="op">|</span><span class="op">|</span> <span class="self">self</span> <span class="op">==</span> <span class="ident">::core</span>::<span class="macro-nonterminal">$</span><span class="macro-nonterminal">ty::NEG_INFINITY</span> |
| } |
| |
| <span class="attribute">#[<span class="ident">inline</span>]</span> |
| <span class="kw">fn</span> <span class="ident">is_finite</span>(<span class="self">self</span>) -> <span class="ident">bool</span> { |
| <span class="op">!</span>(<span class="self">self</span>.<span class="ident">is_nan</span>() <span class="op">|</span><span class="op">|</span> <span class="self">self</span>.<span class="ident">is_infinite</span>()) |
| } |
| } |
| |
| <span class="kw">impl</span> <span class="ident">FloatSIMDUtils</span> <span class="kw">for</span> <span class="macro-nonterminal">$</span><span class="macro-nonterminal">ty</span> { |
| <span class="kw">type</span> <span class="ident">Mask</span> <span class="op">=</span> <span class="ident">bool</span>; |
| <span class="kw">type</span> <span class="ident">UInt</span> <span class="op">=</span> <span class="macro-nonterminal">$</span><span class="macro-nonterminal">uty</span>; |
| |
| <span class="attribute">#[<span class="ident">inline</span>(<span class="ident">always</span>)]</span> |
| <span class="kw">fn</span> <span class="ident">all_lt</span>(<span class="self">self</span>, <span class="ident">other</span>: <span class="self">Self</span>) -> <span class="ident">bool</span> { |
| <span class="self">self</span> <span class="op"><</span> <span class="ident">other</span> |
| } |
| |
| <span class="attribute">#[<span class="ident">inline</span>(<span class="ident">always</span>)]</span> |
| <span class="kw">fn</span> <span class="ident">all_le</span>(<span class="self">self</span>, <span class="ident">other</span>: <span class="self">Self</span>) -> <span class="ident">bool</span> { |
| <span class="self">self</span> <span class="op"><</span><span class="op">=</span> <span class="ident">other</span> |
| } |
| |
| <span class="attribute">#[<span class="ident">inline</span>(<span class="ident">always</span>)]</span> |
| <span class="kw">fn</span> <span class="ident">all_finite</span>(<span class="self">self</span>) -> <span class="ident">bool</span> { |
| <span class="self">self</span>.<span class="ident">is_finite</span>() |
| } |
| |
| <span class="attribute">#[<span class="ident">inline</span>(<span class="ident">always</span>)]</span> |
| <span class="kw">fn</span> <span class="ident">finite_mask</span>(<span class="self">self</span>) -> <span class="ident"><span class="self">Self</span>::Mask</span> { |
| <span class="self">self</span>.<span class="ident">is_finite</span>() |
| } |
| |
| <span class="attribute">#[<span class="ident">inline</span>(<span class="ident">always</span>)]</span> |
| <span class="kw">fn</span> <span class="ident">gt_mask</span>(<span class="self">self</span>, <span class="ident">other</span>: <span class="self">Self</span>) -> <span class="ident"><span class="self">Self</span>::Mask</span> { |
| <span class="self">self</span> <span class="op">></span> <span class="ident">other</span> |
| } |
| |
| <span class="attribute">#[<span class="ident">inline</span>(<span class="ident">always</span>)]</span> |
| <span class="kw">fn</span> <span class="ident">ge_mask</span>(<span class="self">self</span>, <span class="ident">other</span>: <span class="self">Self</span>) -> <span class="ident"><span class="self">Self</span>::Mask</span> { |
| <span class="self">self</span> <span class="op">></span><span class="op">=</span> <span class="ident">other</span> |
| } |
| |
| <span class="attribute">#[<span class="ident">inline</span>(<span class="ident">always</span>)]</span> |
| <span class="kw">fn</span> <span class="ident">decrease_masked</span>(<span class="self">self</span>, <span class="ident">mask</span>: <span class="ident"><span class="self">Self</span>::Mask</span>) -> <span class="self">Self</span> { |
| <span class="macro">debug_assert!</span>(<span class="ident">mask</span>, <span class="string">"At least one lane must be set"</span>); |
| <span class="op"><</span><span class="macro-nonterminal">$</span><span class="macro-nonterminal">ty</span><span class="op">></span><span class="ident">::from_bits</span>(<span class="self">self</span>.<span class="ident">to_bits</span>() <span class="op">-</span> <span class="number">1</span>) |
| } |
| |
| <span class="attribute">#[<span class="ident">inline</span>]</span> |
| <span class="kw">fn</span> <span class="ident">cast_from_int</span>(<span class="ident">i</span>: <span class="ident"><span class="self">Self</span>::UInt</span>) -> <span class="self">Self</span> { |
| <span class="ident">i</span> <span class="kw">as</span> <span class="macro-nonterminal">$</span><span class="macro-nonterminal">ty</span> |
| } |
| } |
| |
| <span class="kw">impl</span> <span class="ident">FloatAsSIMD</span> <span class="kw">for</span> <span class="macro-nonterminal">$</span><span class="macro-nonterminal">ty</span> {} |
| }; |
| } |
| |
| <span class="macro">scalar_float_impl!</span>(<span class="ident">f32</span>, <span class="ident">u32</span>); |
| <span class="macro">scalar_float_impl!</span>(<span class="ident">f64</span>, <span class="ident">u64</span>); |
| |
| |
| <span class="attribute">#[<span class="ident">cfg</span>(<span class="ident">feature</span> <span class="op">=</span> <span class="string">"simd_support"</span>)]</span> |
| <span class="macro">macro_rules!</span> <span class="ident">simd_impl</span> { |
| (<span class="macro-nonterminal">$</span><span class="macro-nonterminal">ty</span>:<span class="ident">ident</span>, <span class="macro-nonterminal">$</span><span class="macro-nonterminal">f_scalar</span>:<span class="ident">ident</span>, <span class="macro-nonterminal">$</span><span class="macro-nonterminal">mty</span>:<span class="ident">ident</span>, <span class="macro-nonterminal">$</span><span class="macro-nonterminal">uty</span>:<span class="ident">ident</span>) => { |
| <span class="kw">impl</span> <span class="ident">FloatSIMDUtils</span> <span class="kw">for</span> <span class="macro-nonterminal">$</span><span class="macro-nonterminal">ty</span> { |
| <span class="kw">type</span> <span class="ident">Mask</span> <span class="op">=</span> <span class="macro-nonterminal">$</span><span class="macro-nonterminal">mty</span>; |
| <span class="kw">type</span> <span class="ident">UInt</span> <span class="op">=</span> <span class="macro-nonterminal">$</span><span class="macro-nonterminal">uty</span>; |
| |
| <span class="attribute">#[<span class="ident">inline</span>(<span class="ident">always</span>)]</span> |
| <span class="kw">fn</span> <span class="ident">all_lt</span>(<span class="self">self</span>, <span class="ident">other</span>: <span class="self">Self</span>) -> <span class="ident">bool</span> { |
| <span class="self">self</span>.<span class="ident">lt</span>(<span class="ident">other</span>).<span class="ident">all</span>() |
| } |
| |
| <span class="attribute">#[<span class="ident">inline</span>(<span class="ident">always</span>)]</span> |
| <span class="kw">fn</span> <span class="ident">all_le</span>(<span class="self">self</span>, <span class="ident">other</span>: <span class="self">Self</span>) -> <span class="ident">bool</span> { |
| <span class="self">self</span>.<span class="ident">le</span>(<span class="ident">other</span>).<span class="ident">all</span>() |
| } |
| |
| <span class="attribute">#[<span class="ident">inline</span>(<span class="ident">always</span>)]</span> |
| <span class="kw">fn</span> <span class="ident">all_finite</span>(<span class="self">self</span>) -> <span class="ident">bool</span> { |
| <span class="self">self</span>.<span class="ident">finite_mask</span>().<span class="ident">all</span>() |
| } |
| |
| <span class="attribute">#[<span class="ident">inline</span>(<span class="ident">always</span>)]</span> |
| <span class="kw">fn</span> <span class="ident">finite_mask</span>(<span class="self">self</span>) -> <span class="ident"><span class="self">Self</span>::Mask</span> { |
| <span class="comment">// This can possibly be done faster by checking bit patterns</span> |
| <span class="kw">let</span> <span class="ident">neg_inf</span> <span class="op">=</span> <span class="macro-nonterminal">$</span><span class="macro-nonterminal">ty::splat</span>(<span class="ident">::core</span>::<span class="macro-nonterminal">$</span><span class="macro-nonterminal">f_scalar::NEG_INFINITY</span>); |
| <span class="kw">let</span> <span class="ident">pos_inf</span> <span class="op">=</span> <span class="macro-nonterminal">$</span><span class="macro-nonterminal">ty::splat</span>(<span class="ident">::core</span>::<span class="macro-nonterminal">$</span><span class="macro-nonterminal">f_scalar::INFINITY</span>); |
| <span class="self">self</span>.<span class="ident">gt</span>(<span class="ident">neg_inf</span>) <span class="op">&</span> <span class="self">self</span>.<span class="ident">lt</span>(<span class="ident">pos_inf</span>) |
| } |
| |
| <span class="attribute">#[<span class="ident">inline</span>(<span class="ident">always</span>)]</span> |
| <span class="kw">fn</span> <span class="ident">gt_mask</span>(<span class="self">self</span>, <span class="ident">other</span>: <span class="self">Self</span>) -> <span class="ident"><span class="self">Self</span>::Mask</span> { |
| <span class="self">self</span>.<span class="ident">gt</span>(<span class="ident">other</span>) |
| } |
| |
| <span class="attribute">#[<span class="ident">inline</span>(<span class="ident">always</span>)]</span> |
| <span class="kw">fn</span> <span class="ident">ge_mask</span>(<span class="self">self</span>, <span class="ident">other</span>: <span class="self">Self</span>) -> <span class="ident"><span class="self">Self</span>::Mask</span> { |
| <span class="self">self</span>.<span class="ident">ge</span>(<span class="ident">other</span>) |
| } |
| |
| <span class="attribute">#[<span class="ident">inline</span>(<span class="ident">always</span>)]</span> |
| <span class="kw">fn</span> <span class="ident">decrease_masked</span>(<span class="self">self</span>, <span class="ident">mask</span>: <span class="ident"><span class="self">Self</span>::Mask</span>) -> <span class="self">Self</span> { |
| <span class="comment">// Casting a mask into ints will produce all bits set for</span> |
| <span class="comment">// true, and 0 for false. Adding that to the binary</span> |
| <span class="comment">// representation of a float means subtracting one from</span> |
| <span class="comment">// the binary representation, resulting in the next lower</span> |
| <span class="comment">// value representable by $ty. This works even when the</span> |
| <span class="comment">// current value is infinity.</span> |
| <span class="macro">debug_assert!</span>(<span class="ident">mask</span>.<span class="ident">any</span>(), <span class="string">"At least one lane must be set"</span>); |
| <span class="op"><</span><span class="macro-nonterminal">$</span><span class="macro-nonterminal">ty</span><span class="op">></span><span class="ident">::from_bits</span>(<span class="op"><</span><span class="macro-nonterminal">$</span><span class="macro-nonterminal">uty</span><span class="op">></span><span class="ident">::from_bits</span>(<span class="self">self</span>) <span class="op">+</span> <span class="op"><</span><span class="macro-nonterminal">$</span><span class="macro-nonterminal">uty</span><span class="op">></span><span class="ident">::from_bits</span>(<span class="ident">mask</span>)) |
| } |
| |
| <span class="attribute">#[<span class="ident">inline</span>]</span> |
| <span class="kw">fn</span> <span class="ident">cast_from_int</span>(<span class="ident">i</span>: <span class="ident"><span class="self">Self</span>::UInt</span>) -> <span class="self">Self</span> { |
| <span class="ident">i</span>.<span class="ident">cast</span>() |
| } |
| } |
| }; |
| } |
| |
| <span class="attribute">#[<span class="ident">cfg</span>(<span class="ident">feature</span><span class="op">=</span><span class="string">"simd_support"</span>)]</span> <span class="macro">simd_impl!</span> { <span class="ident">f32x2</span>, <span class="ident">f32</span>, <span class="ident">m32x2</span>, <span class="ident">u32x2</span> } |
| <span class="attribute">#[<span class="ident">cfg</span>(<span class="ident">feature</span><span class="op">=</span><span class="string">"simd_support"</span>)]</span> <span class="macro">simd_impl!</span> { <span class="ident">f32x4</span>, <span class="ident">f32</span>, <span class="ident">m32x4</span>, <span class="ident">u32x4</span> } |
| <span class="attribute">#[<span class="ident">cfg</span>(<span class="ident">feature</span><span class="op">=</span><span class="string">"simd_support"</span>)]</span> <span class="macro">simd_impl!</span> { <span class="ident">f32x8</span>, <span class="ident">f32</span>, <span class="ident">m32x8</span>, <span class="ident">u32x8</span> } |
| <span class="attribute">#[<span class="ident">cfg</span>(<span class="ident">feature</span><span class="op">=</span><span class="string">"simd_support"</span>)]</span> <span class="macro">simd_impl!</span> { <span class="ident">f32x16</span>, <span class="ident">f32</span>, <span class="ident">m32x16</span>, <span class="ident">u32x16</span> } |
| <span class="attribute">#[<span class="ident">cfg</span>(<span class="ident">feature</span><span class="op">=</span><span class="string">"simd_support"</span>)]</span> <span class="macro">simd_impl!</span> { <span class="ident">f64x2</span>, <span class="ident">f64</span>, <span class="ident">m64x2</span>, <span class="ident">u64x2</span> } |
| <span class="attribute">#[<span class="ident">cfg</span>(<span class="ident">feature</span><span class="op">=</span><span class="string">"simd_support"</span>)]</span> <span class="macro">simd_impl!</span> { <span class="ident">f64x4</span>, <span class="ident">f64</span>, <span class="ident">m64x4</span>, <span class="ident">u64x4</span> } |
| <span class="attribute">#[<span class="ident">cfg</span>(<span class="ident">feature</span><span class="op">=</span><span class="string">"simd_support"</span>)]</span> <span class="macro">simd_impl!</span> { <span class="ident">f64x8</span>, <span class="ident">f64</span>, <span class="ident">m64x8</span>, <span class="ident">u64x8</span> } |
| </code></pre></div> |
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