<!DOCTYPE html><html lang="en"><head><meta charset="utf-8"><meta name="viewport" content="width=device-width, initial-scale=1.0"><meta name="generator" content="rustdoc"><meta name="description" content="Source to the Rust file `src/libcore/../stdsimd/crates/core_arch/src/x86_64/adx.rs`."><meta name="keywords" content="rust, rustlang, rust-lang"><title>adx.rs.html -- source</title><link rel="stylesheet" type="text/css" href="../../../../../../../../normalize1.35.0.css"><link rel="stylesheet" type="text/css" href="../../../../../../../../rustdoc1.35.0.css" id="mainThemeStyle"><link rel="stylesheet" type="text/css" href="../../../../../../../../dark1.35.0.css"><link rel="stylesheet" type="text/css" href="../../../../../../../../light1.35.0.css" id="themeStyle"><script src="../../../../../../../../storage1.35.0.js"></script><noscript><link rel="stylesheet" href="../../../../../../../../noscript1.35.0.css"></noscript><link rel="shortcut icon" href="../../../../../../../../favicon1.35.0.ico"><style type="text/css">#crate-search{background-image:url("../../../../../../../../down-arrow1.35.0.svg");}</style></head><body class="rustdoc source"><!--[if lte IE 8]><div class="warning">This old browser is unsupported and will most likely display funky things.</div><![endif]--><nav class="sidebar"><div class="sidebar-menu">☰</div><a href='../../../../../../../../core/index.html'><img src='../../../../../../../../rust-logo1.35.0.png' alt='logo' width='100'></a></nav><div class="theme-picker"><button id="theme-picker" aria-label="Pick another theme!"><img src="../../../../../../../../brush1.35.0.svg" width="18" alt="Pick another theme!"></button><div id="theme-choices"></div></div><script src="../../../../../../../../theme1.35.0.js"></script><nav class="sub"><form class="search-form js-only"><div class="search-container"><div><select id="crate-search"><option value="All crates">All crates</option></select><input class="search-input" name="search" autocomplete="off" spellcheck="false" placeholder="Click or press ‘S’ to search, ‘?’ for more options…" type="search"></div><a id="settings-menu" href="../../../../../../../../settings.html"><img src="../../../../../../../../wheel1.35.0.svg" width="18" alt="Change settings"></a></div></form></nav><section id="main" class="content"><pre class="line-numbers"><span id="1"> 1</span>
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</pre><div class="example-wrap"><pre class="rust ">
<span class="attribute">#[<span class="ident">cfg</span>(<span class="ident">test</span>)]</span>
<span class="kw">use</span> <span class="ident">stdsimd_test</span>::<span class="ident">assert_instr</span>;
<span class="attribute">#[<span class="ident">allow</span>(<span class="ident">improper_ctypes</span>)]</span>
<span class="kw">extern</span> <span class="string">"unadjusted"</span> {
<span class="attribute">#[<span class="ident">link_name</span> <span class="op">=</span> <span class="string">"llvm.x86.addcarry.64"</span>]</span>
<span class="kw">fn</span> <span class="ident">llvm_addcarry_u64</span>(<span class="ident">a</span>: <span class="ident">u8</span>, <span class="ident">b</span>: <span class="ident">u64</span>, <span class="ident">c</span>: <span class="ident">u64</span>) <span class="op">-></span> (<span class="ident">u8</span>, <span class="ident">u64</span>);
<span class="attribute">#[<span class="ident">link_name</span> <span class="op">=</span> <span class="string">"llvm.x86.addcarryx.u64"</span>]</span>
<span class="kw">fn</span> <span class="ident">llvm_addcarryx_u64</span>(<span class="ident">a</span>: <span class="ident">u8</span>, <span class="ident">b</span>: <span class="ident">u64</span>, <span class="ident">c</span>: <span class="ident">u64</span>, <span class="ident">d</span>: <span class="kw-2">*</span><span class="kw-2">mut</span> <span class="ident">u8</span>) <span class="op">-></span> <span class="ident">u8</span>;
<span class="attribute">#[<span class="ident">link_name</span> <span class="op">=</span> <span class="string">"llvm.x86.subborrow.64"</span>]</span>
<span class="kw">fn</span> <span class="ident">llvm_subborrow_u64</span>(<span class="ident">a</span>: <span class="ident">u8</span>, <span class="ident">b</span>: <span class="ident">u64</span>, <span class="ident">c</span>: <span class="ident">u64</span>) <span class="op">-></span> (<span class="ident">u8</span>, <span class="ident">u64</span>);
}
<span class="doccomment">/// Adds unsigned 64-bit integers `a` and `b` with unsigned 8-bit carry-in `c_in`</span>
<span class="doccomment">/// (carry flag), and store the unsigned 64-bit result in `out`, and the carry-out</span>
<span class="doccomment">/// is returned (carry or overflow flag).</span>
<span class="attribute">#[<span class="ident">inline</span>]</span>
<span class="attribute">#[<span class="ident">cfg_attr</span>(<span class="ident">test</span>, <span class="ident">assert_instr</span>(<span class="ident">adc</span>))]</span>
<span class="attribute">#[<span class="ident">stable</span>(<span class="ident">feature</span> <span class="op">=</span> <span class="string">"simd_x86_adx"</span>, <span class="ident">since</span> <span class="op">=</span> <span class="string">"1.33.0"</span>)]</span>
<span class="kw">pub</span> <span class="kw">unsafe</span> <span class="kw">fn</span> <span class="ident">_addcarry_u64</span>(<span class="ident">c_in</span>: <span class="ident">u8</span>, <span class="ident">a</span>: <span class="ident">u64</span>, <span class="ident">b</span>: <span class="ident">u64</span>, <span class="ident">out</span>: <span class="kw-2">&</span><span class="kw-2">mut</span> <span class="ident">u64</span>) <span class="op">-></span> <span class="ident">u8</span> {
<span class="kw">let</span> (<span class="ident">a</span>, <span class="ident">b</span>) <span class="op">=</span> <span class="ident">llvm_addcarry_u64</span>(<span class="ident">c_in</span>, <span class="ident">a</span>, <span class="ident">b</span>);
<span class="kw-2">*</span><span class="ident">out</span> <span class="op">=</span> <span class="ident">b</span>;
<span class="ident">a</span>
}
<span class="doccomment">/// Adds unsigned 64-bit integers `a` and `b` with unsigned 8-bit carry-in `c_in`</span>
<span class="doccomment">/// (carry or overflow flag), and store the unsigned 64-bit result in `out`, and</span>
<span class="doccomment">/// the carry-out is returned (carry or overflow flag).</span>
<span class="attribute">#[<span class="ident">inline</span>]</span>
<span class="attribute">#[<span class="ident">target_feature</span>(<span class="ident">enable</span> <span class="op">=</span> <span class="string">"adx"</span>)]</span>
<span class="attribute">#[<span class="ident">cfg_attr</span>(<span class="ident">test</span>, <span class="ident">assert_instr</span>(<span class="ident">adc</span>))]</span>
<span class="attribute">#[<span class="ident">stable</span>(<span class="ident">feature</span> <span class="op">=</span> <span class="string">"simd_x86_adx"</span>, <span class="ident">since</span> <span class="op">=</span> <span class="string">"1.33.0"</span>)]</span>
<span class="attribute">#[<span class="ident">cfg</span>(<span class="ident">not</span>(<span class="ident">stage0</span>))]</span>
<span class="kw">pub</span> <span class="kw">unsafe</span> <span class="kw">fn</span> <span class="ident">_addcarryx_u64</span>(<span class="ident">c_in</span>: <span class="ident">u8</span>, <span class="ident">a</span>: <span class="ident">u64</span>, <span class="ident">b</span>: <span class="ident">u64</span>, <span class="ident">out</span>: <span class="kw-2">&</span><span class="kw-2">mut</span> <span class="ident">u64</span>) <span class="op">-></span> <span class="ident">u8</span> {
<span class="ident">llvm_addcarryx_u64</span>(<span class="ident">c_in</span>, <span class="ident">a</span>, <span class="ident">b</span>, <span class="ident">out</span> <span class="kw">as</span> <span class="kw-2">*</span><span class="kw-2">mut</span> <span class="kw">_</span> <span class="kw">as</span> <span class="kw-2">*</span><span class="kw-2">mut</span> <span class="ident">u8</span>)
}
<span class="doccomment">/// Adds unsigned 64-bit integers `a` and `b` with unsigned 8-bit carry-in `c_in`.</span>
<span class="doccomment">/// (carry or overflow flag), and store the unsigned 64-bit result in `out`, and</span>
<span class="doccomment">/// the carry-out is returned (carry or overflow flag).</span>
<span class="attribute">#[<span class="ident">inline</span>]</span>
<span class="attribute">#[<span class="ident">cfg_attr</span>(<span class="ident">test</span>, <span class="ident">assert_instr</span>(<span class="ident">sbb</span>))]</span>
<span class="attribute">#[<span class="ident">stable</span>(<span class="ident">feature</span> <span class="op">=</span> <span class="string">"simd_x86_adx"</span>, <span class="ident">since</span> <span class="op">=</span> <span class="string">"1.33.0"</span>)]</span>
<span class="kw">pub</span> <span class="kw">unsafe</span> <span class="kw">fn</span> <span class="ident">_subborrow_u64</span>(<span class="ident">c_in</span>: <span class="ident">u8</span>, <span class="ident">a</span>: <span class="ident">u64</span>, <span class="ident">b</span>: <span class="ident">u64</span>, <span class="ident">out</span>: <span class="kw-2">&</span><span class="kw-2">mut</span> <span class="ident">u64</span>) <span class="op">-></span> <span class="ident">u8</span> {
<span class="kw">let</span> (<span class="ident">a</span>, <span class="ident">b</span>) <span class="op">=</span> <span class="ident">llvm_subborrow_u64</span>(<span class="ident">c_in</span>, <span class="ident">a</span>, <span class="ident">b</span>);
<span class="kw-2">*</span><span class="ident">out</span> <span class="op">=</span> <span class="ident">b</span>;
<span class="ident">a</span>
}
<span class="attribute">#[<span class="ident">cfg</span>(<span class="ident">test</span>)]</span>
<span class="kw">mod</span> <span class="ident">tests</span> {
<span class="kw">use</span> <span class="ident">stdsimd_test</span>::<span class="ident">simd_test</span>;
<span class="kw">use</span> <span class="kw">crate</span>::<span class="ident">core_arch</span>::<span class="ident">x86_64</span>::<span class="kw-2">*</span>;
<span class="attribute">#[<span class="ident">test</span>]</span>
<span class="kw">fn</span> <span class="ident">test_addcarry_u64</span>() {
<span class="kw">unsafe</span> {
<span class="kw">let</span> <span class="ident">a</span> <span class="op">=</span> <span class="ident">u64</span>::<span class="ident">max_value</span>();
<span class="kw">let</span> <span class="kw-2">mut</span> <span class="ident">out</span> <span class="op">=</span> <span class="number">0</span>;
<span class="kw">let</span> <span class="ident">r</span> <span class="op">=</span> <span class="ident">_addcarry_u64</span>(<span class="number">0</span>, <span class="ident">a</span>, <span class="number">1</span>, <span class="kw-2">&</span><span class="kw-2">mut</span> <span class="ident">out</span>);
<span class="macro">assert_eq</span><span class="macro">!</span>(<span class="ident">r</span>, <span class="number">1</span>);
<span class="macro">assert_eq</span><span class="macro">!</span>(<span class="ident">out</span>, <span class="number">0</span>);
<span class="kw">let</span> <span class="ident">r</span> <span class="op">=</span> <span class="ident">_addcarry_u64</span>(<span class="number">0</span>, <span class="ident">a</span>, <span class="number">0</span>, <span class="kw-2">&</span><span class="kw-2">mut</span> <span class="ident">out</span>);
<span class="macro">assert_eq</span><span class="macro">!</span>(<span class="ident">r</span>, <span class="number">0</span>);
<span class="macro">assert_eq</span><span class="macro">!</span>(<span class="ident">out</span>, <span class="ident">a</span>);
<span class="kw">let</span> <span class="ident">r</span> <span class="op">=</span> <span class="ident">_addcarry_u64</span>(<span class="number">1</span>, <span class="ident">a</span>, <span class="number">1</span>, <span class="kw-2">&</span><span class="kw-2">mut</span> <span class="ident">out</span>);
<span class="macro">assert_eq</span><span class="macro">!</span>(<span class="ident">r</span>, <span class="number">1</span>);
<span class="macro">assert_eq</span><span class="macro">!</span>(<span class="ident">out</span>, <span class="number">1</span>);
<span class="kw">let</span> <span class="ident">r</span> <span class="op">=</span> <span class="ident">_addcarry_u64</span>(<span class="number">1</span>, <span class="ident">a</span>, <span class="number">0</span>, <span class="kw-2">&</span><span class="kw-2">mut</span> <span class="ident">out</span>);
<span class="macro">assert_eq</span><span class="macro">!</span>(<span class="ident">r</span>, <span class="number">1</span>);
<span class="macro">assert_eq</span><span class="macro">!</span>(<span class="ident">out</span>, <span class="number">0</span>);
<span class="kw">let</span> <span class="ident">r</span> <span class="op">=</span> <span class="ident">_addcarry_u64</span>(<span class="number">0</span>, <span class="number">3</span>, <span class="number">4</span>, <span class="kw-2">&</span><span class="kw-2">mut</span> <span class="ident">out</span>);
<span class="macro">assert_eq</span><span class="macro">!</span>(<span class="ident">r</span>, <span class="number">0</span>);
<span class="macro">assert_eq</span><span class="macro">!</span>(<span class="ident">out</span>, <span class="number">7</span>);
<span class="kw">let</span> <span class="ident">r</span> <span class="op">=</span> <span class="ident">_addcarry_u64</span>(<span class="number">1</span>, <span class="number">3</span>, <span class="number">4</span>, <span class="kw-2">&</span><span class="kw-2">mut</span> <span class="ident">out</span>);
<span class="macro">assert_eq</span><span class="macro">!</span>(<span class="ident">r</span>, <span class="number">0</span>);
<span class="macro">assert_eq</span><span class="macro">!</span>(<span class="ident">out</span>, <span class="number">8</span>);
}
}
<span class="attribute">#[<span class="ident">simd_test</span>(<span class="ident">enable</span> <span class="op">=</span> <span class="string">"adx"</span>)]</span>
<span class="kw">unsafe</span> <span class="kw">fn</span> <span class="ident">test_addcarryx_u64</span>() {
<span class="kw">let</span> <span class="ident">a</span> <span class="op">=</span> <span class="ident">u64</span>::<span class="ident">max_value</span>();
<span class="kw">let</span> <span class="kw-2">mut</span> <span class="ident">out</span> <span class="op">=</span> <span class="number">0</span>;
<span class="kw">let</span> <span class="ident">r</span> <span class="op">=</span> <span class="ident">_addcarry_u64</span>(<span class="number">0</span>, <span class="ident">a</span>, <span class="number">1</span>, <span class="kw-2">&</span><span class="kw-2">mut</span> <span class="ident">out</span>);
<span class="macro">assert_eq</span><span class="macro">!</span>(<span class="ident">r</span>, <span class="number">1</span>);
<span class="macro">assert_eq</span><span class="macro">!</span>(<span class="ident">out</span>, <span class="number">0</span>);
<span class="kw">let</span> <span class="ident">r</span> <span class="op">=</span> <span class="ident">_addcarry_u64</span>(<span class="number">0</span>, <span class="ident">a</span>, <span class="number">0</span>, <span class="kw-2">&</span><span class="kw-2">mut</span> <span class="ident">out</span>);
<span class="macro">assert_eq</span><span class="macro">!</span>(<span class="ident">r</span>, <span class="number">0</span>);
<span class="macro">assert_eq</span><span class="macro">!</span>(<span class="ident">out</span>, <span class="ident">a</span>);
<span class="kw">let</span> <span class="ident">r</span> <span class="op">=</span> <span class="ident">_addcarry_u64</span>(<span class="number">1</span>, <span class="ident">a</span>, <span class="number">1</span>, <span class="kw-2">&</span><span class="kw-2">mut</span> <span class="ident">out</span>);
<span class="macro">assert_eq</span><span class="macro">!</span>(<span class="ident">r</span>, <span class="number">1</span>);
<span class="macro">assert_eq</span><span class="macro">!</span>(<span class="ident">out</span>, <span class="number">1</span>);
<span class="kw">let</span> <span class="ident">r</span> <span class="op">=</span> <span class="ident">_addcarry_u64</span>(<span class="number">1</span>, <span class="ident">a</span>, <span class="number">0</span>, <span class="kw-2">&</span><span class="kw-2">mut</span> <span class="ident">out</span>);
<span class="macro">assert_eq</span><span class="macro">!</span>(<span class="ident">r</span>, <span class="number">1</span>);
<span class="macro">assert_eq</span><span class="macro">!</span>(<span class="ident">out</span>, <span class="number">0</span>);
<span class="kw">let</span> <span class="ident">r</span> <span class="op">=</span> <span class="ident">_addcarry_u64</span>(<span class="number">0</span>, <span class="number">3</span>, <span class="number">4</span>, <span class="kw-2">&</span><span class="kw-2">mut</span> <span class="ident">out</span>);
<span class="macro">assert_eq</span><span class="macro">!</span>(<span class="ident">r</span>, <span class="number">0</span>);
<span class="macro">assert_eq</span><span class="macro">!</span>(<span class="ident">out</span>, <span class="number">7</span>);
<span class="kw">let</span> <span class="ident">r</span> <span class="op">=</span> <span class="ident">_addcarry_u64</span>(<span class="number">1</span>, <span class="number">3</span>, <span class="number">4</span>, <span class="kw-2">&</span><span class="kw-2">mut</span> <span class="ident">out</span>);
<span class="macro">assert_eq</span><span class="macro">!</span>(<span class="ident">r</span>, <span class="number">0</span>);
<span class="macro">assert_eq</span><span class="macro">!</span>(<span class="ident">out</span>, <span class="number">8</span>);
}
<span class="attribute">#[<span class="ident">test</span>]</span>
<span class="kw">fn</span> <span class="ident">test_subborrow_u64</span>() {
<span class="kw">unsafe</span> {
<span class="kw">let</span> <span class="ident">a</span> <span class="op">=</span> <span class="ident">u64</span>::<span class="ident">max_value</span>();
<span class="kw">let</span> <span class="kw-2">mut</span> <span class="ident">out</span> <span class="op">=</span> <span class="number">0</span>;
<span class="kw">let</span> <span class="ident">r</span> <span class="op">=</span> <span class="ident">_subborrow_u64</span>(<span class="number">0</span>, <span class="number">0</span>, <span class="number">1</span>, <span class="kw-2">&</span><span class="kw-2">mut</span> <span class="ident">out</span>);
<span class="macro">assert_eq</span><span class="macro">!</span>(<span class="ident">r</span>, <span class="number">1</span>);
<span class="macro">assert_eq</span><span class="macro">!</span>(<span class="ident">out</span>, <span class="ident">a</span>);
<span class="kw">let</span> <span class="ident">r</span> <span class="op">=</span> <span class="ident">_subborrow_u64</span>(<span class="number">0</span>, <span class="number">0</span>, <span class="number">0</span>, <span class="kw-2">&</span><span class="kw-2">mut</span> <span class="ident">out</span>);
<span class="macro">assert_eq</span><span class="macro">!</span>(<span class="ident">r</span>, <span class="number">0</span>);
<span class="macro">assert_eq</span><span class="macro">!</span>(<span class="ident">out</span>, <span class="number">0</span>);
<span class="kw">let</span> <span class="ident">r</span> <span class="op">=</span> <span class="ident">_subborrow_u64</span>(<span class="number">1</span>, <span class="number">0</span>, <span class="number">1</span>, <span class="kw-2">&</span><span class="kw-2">mut</span> <span class="ident">out</span>);
<span class="macro">assert_eq</span><span class="macro">!</span>(<span class="ident">r</span>, <span class="number">1</span>);
<span class="macro">assert_eq</span><span class="macro">!</span>(<span class="ident">out</span>, <span class="ident">a</span> <span class="op">-</span> <span class="number">1</span>);
<span class="kw">let</span> <span class="ident">r</span> <span class="op">=</span> <span class="ident">_subborrow_u64</span>(<span class="number">1</span>, <span class="number">0</span>, <span class="number">0</span>, <span class="kw-2">&</span><span class="kw-2">mut</span> <span class="ident">out</span>);
<span class="macro">assert_eq</span><span class="macro">!</span>(<span class="ident">r</span>, <span class="number">1</span>);
<span class="macro">assert_eq</span><span class="macro">!</span>(<span class="ident">out</span>, <span class="ident">a</span>);
<span class="kw">let</span> <span class="ident">r</span> <span class="op">=</span> <span class="ident">_subborrow_u64</span>(<span class="number">0</span>, <span class="number">7</span>, <span class="number">3</span>, <span class="kw-2">&</span><span class="kw-2">mut</span> <span class="ident">out</span>);
<span class="macro">assert_eq</span><span class="macro">!</span>(<span class="ident">r</span>, <span class="number">0</span>);
<span class="macro">assert_eq</span><span class="macro">!</span>(<span class="ident">out</span>, <span class="number">4</span>);
<span class="kw">let</span> <span class="ident">r</span> <span class="op">=</span> <span class="ident">_subborrow_u64</span>(<span class="number">1</span>, <span class="number">7</span>, <span class="number">3</span>, <span class="kw-2">&</span><span class="kw-2">mut</span> <span class="ident">out</span>);
<span class="macro">assert_eq</span><span class="macro">!</span>(<span class="ident">r</span>, <span class="number">0</span>);
<span class="macro">assert_eq</span><span class="macro">!</span>(<span class="ident">out</span>, <span class="number">3</span>);
}
}
}
</pre></div>
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