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<!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="API documentation for the Rust `TargetIsa` trait in crate `cranelift_codegen`."><meta name="keywords" content="rust, rustlang, rust-lang, TargetIsa"><title>cranelift_codegen::isa::TargetIsa - Rust</title><link rel="stylesheet" type="text/css" href="../../normalize.css"><link rel="stylesheet" type="text/css" href="../../rustdoc.css" id="mainThemeStyle"><link rel="stylesheet" type="text/css" href="../../dark.css"><link rel="stylesheet" type="text/css" href="../../light.css" id="themeStyle"><script src="../../storage.js"></script><noscript><link rel="stylesheet" href="../../noscript.css"></noscript><link rel="shortcut icon" href="../../favicon.ico"><style type="text/css">#crate-search{background-image:url("../../down-arrow.svg");}</style></head><body class="rustdoc trait"><!--[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='../../cranelift_codegen/index.html'><div class='logo-container'><img src='../../rust-logo.png' alt='logo'></div></a><p class='location'>Trait TargetIsa</p><div class="sidebar-elems"><div class="block items"><a class="sidebar-title" href="#required-methods">Required Methods</a><div class="sidebar-links"><a href="#tymethod.allocatable_registers">allocatable_registers</a><a href="#tymethod.emit_function_to_memory">emit_function_to_memory</a><a href="#tymethod.encoding_info">encoding_info</a><a href="#tymethod.flags">flags</a><a href="#tymethod.legal_encodings">legal_encodings</a><a href="#tymethod.legalize_signature">legalize_signature</a><a href="#tymethod.name">name</a><a href="#tymethod.regclass_for_abi_type">regclass_for_abi_type</a><a href="#tymethod.register_info">register_info</a><a href="#tymethod.triple">triple</a></div><a class="sidebar-title" href="#provided-methods">Provided Methods</a><div class="sidebar-links"><a href="#method.default_call_conv">default_call_conv</a><a href="#method.encode">encode</a><a href="#method.frontend_config">frontend_config</a><a href="#method.pointer_bits">pointer_bits</a><a href="#method.pointer_bytes">pointer_bytes</a><a href="#method.pointer_type">pointer_type</a><a href="#method.pointer_width">pointer_width</a><a href="#method.prologue_epilogue">prologue_epilogue</a><a href="#method.uses_complex_addresses">uses_complex_addresses</a><a href="#method.uses_cpu_flags">uses_cpu_flags</a></div><a class="sidebar-title" href="#implementors">Implementors</a><a class="sidebar-title" href="#implementations">Trait Implementations</a><div class="sidebar-links"><a href="#impl-From%3C%26%27a%20(dyn%20TargetIsa%20+%20%27a)%3E">From<&'a (dyn TargetIsa + 'a)></a></div></div><p class='location'><a href='../index.html'>cranelift_codegen</a>::<wbr><a href='index.html'>isa</a></p><script>window.sidebarCurrent = {name: 'TargetIsa', ty: 'trait', relpath: ''};</script><script defer src="sidebar-items.js"></script></div></nav><div class="theme-picker"><button id="theme-picker" aria-label="Pick another theme!"><img src="../../brush.svg" width="18" alt="Pick another theme!"></button><div id="theme-choices"></div></div><script src="../../theme.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="../../wheel.svg" width="18" alt="Change settings"></a></div></form></nav><section id="main" class="content"><h1 class='fqn'><span class='out-of-band'><span id='render-detail'><a id="toggle-all-docs" href="javascript:void(0)" title="collapse all docs">[<span class='inner'>−</span>]</a></span><a class='srclink' href='../../src/cranelift_codegen/isa/mod.rs.html#202-375' title='goto source code'>[src]</a></span><span class='in-band'>Trait <a href='../index.html'>cranelift_codegen</a>::<wbr><a href='index.html'>isa</a>::<wbr><a class="trait" href=''>TargetIsa</a></span></h1><div class="docblock type-decl hidden-by-usual-hider"><pre class='rust trait'>pub trait TargetIsa: <a class="trait" href="https://doc.rust-lang.org/nightly/core/fmt/trait.Display.html" title="trait core::fmt::Display">Display</a> + <a class="trait" href="https://doc.rust-lang.org/nightly/core/marker/trait.Sync.html" title="trait core::marker::Sync">Sync</a> {
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fn <a href='#tymethod.name' class='fnname'>name</a>(&self) -> &'static <a class="primitive" href="https://doc.rust-lang.org/nightly/std/primitive.str.html">str</a>;
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<div class='item-spacer'></div> fn <a href='#tymethod.triple' class='fnname'>triple</a>(&self) -> &<a class="struct" href="../../target_lexicon/triple/struct.Triple.html" title="struct target_lexicon::triple::Triple">Triple</a>;
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<div class='item-spacer'></div> fn <a href='#tymethod.flags' class='fnname'>flags</a>(&self) -> &<a class="struct" href="../../cranelift_codegen/settings/struct.Flags.html" title="struct cranelift_codegen::settings::Flags">Flags</a>;
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<div class='item-spacer'></div> fn <a href='#tymethod.register_info' class='fnname'>register_info</a>(&self) -> <a class="struct" href="../../cranelift_codegen/isa/registers/struct.RegInfo.html" title="struct cranelift_codegen::isa::registers::RegInfo">RegInfo</a>;
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<div class='item-spacer'></div> fn <a href='#tymethod.legal_encodings' class='fnname'>legal_encodings</a><'a>(<br> &'a self, <br> func: &'a <a class="struct" href="../../cranelift_codegen/ir/function/struct.Function.html" title="struct cranelift_codegen::ir::function::Function">Function</a>, <br> inst: &'a <a class="enum" href="../../cranelift_codegen/ir/instructions/enum.InstructionData.html" title="enum cranelift_codegen::ir::instructions::InstructionData">InstructionData</a>, <br> ctrl_typevar: <a class="struct" href="../../cranelift_codegen/ir/types/struct.Type.html" title="struct cranelift_codegen::ir::types::Type">Type</a><br> ) -> Encodings<'a>;
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<div class='item-spacer'></div> fn <a href='#tymethod.encoding_info' class='fnname'>encoding_info</a>(&self) -> <a class="struct" href="../../cranelift_codegen/isa/struct.EncInfo.html" title="struct cranelift_codegen::isa::EncInfo">EncInfo</a>;
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<div class='item-spacer'></div> fn <a href='#tymethod.legalize_signature' class='fnname'>legalize_signature</a>(&self, sig: &mut <a class="struct" href="../../cranelift_codegen/ir/struct.Signature.html" title="struct cranelift_codegen::ir::Signature">Signature</a>, current: <a class="primitive" href="https://doc.rust-lang.org/nightly/std/primitive.bool.html">bool</a>);
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<div class='item-spacer'></div> fn <a href='#tymethod.regclass_for_abi_type' class='fnname'>regclass_for_abi_type</a>(&self, ty: <a class="struct" href="../../cranelift_codegen/ir/types/struct.Type.html" title="struct cranelift_codegen::ir::types::Type">Type</a>) -> <a class="type" href="../../cranelift_codegen/isa/registers/type.RegClass.html" title="type cranelift_codegen::isa::registers::RegClass">RegClass</a>;
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<div class='item-spacer'></div> fn <a href='#tymethod.allocatable_registers' class='fnname'>allocatable_registers</a>(&self, func: &<a class="struct" href="../../cranelift_codegen/ir/function/struct.Function.html" title="struct cranelift_codegen::ir::function::Function">Function</a>) -> RegisterSet;
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<div class='item-spacer'></div> fn <a href='#tymethod.emit_function_to_memory' class='fnname'>emit_function_to_memory</a>(<br> &self, <br> func: &<a class="struct" href="../../cranelift_codegen/ir/function/struct.Function.html" title="struct cranelift_codegen::ir::function::Function">Function</a>, <br> sink: &mut <a class="struct" href="../../cranelift_codegen/binemit/struct.MemoryCodeSink.html" title="struct cranelift_codegen::binemit::MemoryCodeSink">MemoryCodeSink</a><br> );
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fn <a href='#method.default_call_conv' class='fnname'>default_call_conv</a>(&self) -> <a class="enum" href="../../cranelift_codegen/isa/enum.CallConv.html" title="enum cranelift_codegen::isa::CallConv">CallConv</a> { ... }
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<div class='item-spacer'></div> fn <a href='#method.pointer_type' class='fnname'>pointer_type</a>(&self) -> <a class="struct" href="../../cranelift_codegen/ir/types/struct.Type.html" title="struct cranelift_codegen::ir::types::Type">Type</a> { ... }
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<div class='item-spacer'></div> fn <a href='#method.pointer_width' class='fnname'>pointer_width</a>(&self) -> <a class="enum" href="../../target_lexicon/triple/enum.PointerWidth.html" title="enum target_lexicon::triple::PointerWidth">PointerWidth</a> { ... }
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<div class='item-spacer'></div> fn <a href='#method.pointer_bits' class='fnname'>pointer_bits</a>(&self) -> <a class="primitive" href="https://doc.rust-lang.org/nightly/std/primitive.u8.html">u8</a> { ... }
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<div class='item-spacer'></div> fn <a href='#method.pointer_bytes' class='fnname'>pointer_bytes</a>(&self) -> <a class="primitive" href="https://doc.rust-lang.org/nightly/std/primitive.u8.html">u8</a> { ... }
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<div class='item-spacer'></div> fn <a href='#method.frontend_config' class='fnname'>frontend_config</a>(&self) -> <a class="struct" href="../../cranelift_codegen/isa/struct.TargetFrontendConfig.html" title="struct cranelift_codegen::isa::TargetFrontendConfig">TargetFrontendConfig</a> { ... }
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<div class='item-spacer'></div> fn <a href='#method.uses_cpu_flags' class='fnname'>uses_cpu_flags</a>(&self) -> <a class="primitive" href="https://doc.rust-lang.org/nightly/std/primitive.bool.html">bool</a> { ... }
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<div class='item-spacer'></div> fn <a href='#method.uses_complex_addresses' class='fnname'>uses_complex_addresses</a>(&self) -> <a class="primitive" href="https://doc.rust-lang.org/nightly/std/primitive.bool.html">bool</a> { ... }
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<div class='item-spacer'></div> fn <a href='#method.encode' class='fnname'>encode</a>(<br> &self, <br> func: &<a class="struct" href="../../cranelift_codegen/ir/function/struct.Function.html" title="struct cranelift_codegen::ir::function::Function">Function</a>, <br> inst: &<a class="enum" href="../../cranelift_codegen/ir/instructions/enum.InstructionData.html" title="enum cranelift_codegen::ir::instructions::InstructionData">InstructionData</a>, <br> ctrl_typevar: <a class="struct" href="../../cranelift_codegen/ir/types/struct.Type.html" title="struct cranelift_codegen::ir::types::Type">Type</a><br> ) -> <a class="enum" href="https://doc.rust-lang.org/nightly/core/result/enum.Result.html" title="enum core::result::Result">Result</a><<a class="struct" href="../../cranelift_codegen/isa/struct.Encoding.html" title="struct cranelift_codegen::isa::Encoding">Encoding</a>, <a class="type" href="../../cranelift_codegen/isa/type.Legalize.html" title="type cranelift_codegen::isa::Legalize">Legalize</a>> { ... }
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<div class='item-spacer'></div> fn <a href='#method.prologue_epilogue' class='fnname'>prologue_epilogue</a>(&self, func: &mut <a class="struct" href="../../cranelift_codegen/ir/function/struct.Function.html" title="struct cranelift_codegen::ir::function::Function">Function</a>) -> <a class="type" href="../../cranelift_codegen/type.CodegenResult.html" title="type cranelift_codegen::CodegenResult">CodegenResult</a><<a class="primitive" href="https://doc.rust-lang.org/nightly/std/primitive.unit.html">()</a>> { ... }
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}</pre></div><div class='docblock'><p>Methods that are specialized to a target ISA. Implies a Display trait that shows the
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shared flags, as well as any isa-specific flags.</p>
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</div>
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<h2 id='required-methods' class='small-section-header'>Required methods<a href='#required-methods' class='anchor'></a></h2><div class='methods'><h3 id='tymethod.name' class='method'><code id='name.v'>fn <a href='#tymethod.name' class='fnname'>name</a>(&self) -> &'static <a class="primitive" href="https://doc.rust-lang.org/nightly/std/primitive.str.html">str</a></code></h3><div class='docblock'><p>Get the name of this ISA.</p>
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</div><h3 id='tymethod.triple' class='method'><code id='triple.v'>fn <a href='#tymethod.triple' class='fnname'>triple</a>(&self) -> &<a class="struct" href="../../target_lexicon/triple/struct.Triple.html" title="struct target_lexicon::triple::Triple">Triple</a></code></h3><div class='docblock'><p>Get the target triple that was used to make this trait object.</p>
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</div><h3 id='tymethod.flags' class='method'><code id='flags.v'>fn <a href='#tymethod.flags' class='fnname'>flags</a>(&self) -> &<a class="struct" href="../../cranelift_codegen/settings/struct.Flags.html" title="struct cranelift_codegen::settings::Flags">Flags</a></code></h3><div class='docblock'><p>Get the ISA-independent flags that were used to make this trait object.</p>
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</div><h3 id='tymethod.register_info' class='method'><code id='register_info.v'>fn <a href='#tymethod.register_info' class='fnname'>register_info</a>(&self) -> <a class="struct" href="../../cranelift_codegen/isa/registers/struct.RegInfo.html" title="struct cranelift_codegen::isa::registers::RegInfo">RegInfo</a></code></h3><div class='docblock'><p>Get a data structure describing the registers in this ISA.</p>
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</div><h3 id='tymethod.legal_encodings' class='method'><code id='legal_encodings.v'>fn <a href='#tymethod.legal_encodings' class='fnname'>legal_encodings</a><'a>(<br> &'a self, <br> func: &'a <a class="struct" href="../../cranelift_codegen/ir/function/struct.Function.html" title="struct cranelift_codegen::ir::function::Function">Function</a>, <br> inst: &'a <a class="enum" href="../../cranelift_codegen/ir/instructions/enum.InstructionData.html" title="enum cranelift_codegen::ir::instructions::InstructionData">InstructionData</a>, <br> ctrl_typevar: <a class="struct" href="../../cranelift_codegen/ir/types/struct.Type.html" title="struct cranelift_codegen::ir::types::Type">Type</a><br>) -> Encodings<'a></code></h3><div class='docblock'><p>Returns an iterator over legal encodings for the instruction.</p>
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</div><h3 id='tymethod.encoding_info' class='method'><code id='encoding_info.v'>fn <a href='#tymethod.encoding_info' class='fnname'>encoding_info</a>(&self) -> <a class="struct" href="../../cranelift_codegen/isa/struct.EncInfo.html" title="struct cranelift_codegen::isa::EncInfo">EncInfo</a></code></h3><div class='docblock'><p>Get a data structure describing the instruction encodings in this ISA.</p>
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</div><h3 id='tymethod.legalize_signature' class='method'><code id='legalize_signature.v'>fn <a href='#tymethod.legalize_signature' class='fnname'>legalize_signature</a>(&self, sig: &mut <a class="struct" href="../../cranelift_codegen/ir/struct.Signature.html" title="struct cranelift_codegen::ir::Signature">Signature</a>, current: <a class="primitive" href="https://doc.rust-lang.org/nightly/std/primitive.bool.html">bool</a>)</code></h3><div class='docblock'><p>Legalize a function signature.</p>
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<p>This is used to legalize both the signature of the function being compiled and any called
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functions. The signature should be modified by adding <code>ArgumentLoc</code> annotations to all
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arguments and return values.</p>
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<p>Arguments with types that are not supported by the ABI can be expanded into multiple
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arguments:</p>
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<ul>
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<li>Integer types that are too large to fit in a register can be broken into multiple
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arguments of a smaller integer type.</li>
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<li>Floating point types can be bit-cast to an integer type of the same size, and possible
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broken into smaller integer types.</li>
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<li>Vector types can be bit-cast and broken down into smaller vectors or scalars.</li>
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</ul>
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<p>The legalizer will adapt argument and return values as necessary at all ABI boundaries.</p>
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<p>When this function is called to legalize the signature of the function currently being
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compiled, <code>current</code> is true. The legalized signature can then also contain special purpose
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arguments and return values such as:</p>
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<ul>
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<li>A <code>link</code> argument representing the link registers on RISC architectures that don't push
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the return address on the stack.</li>
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<li>A <code>link</code> return value which will receive the value that was passed to the <code>link</code>
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argument.</li>
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<li>An <code>sret</code> argument can be added if one wasn't present already. This is necessary if the
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signature returns more values than registers are available for returning values.</li>
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<li>An <code>sret</code> return value can be added if the ABI requires a function to return its <code>sret</code>
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argument in a register.</li>
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</ul>
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<p>Arguments and return values for the caller's frame pointer and other callee-saved registers
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should not be added by this function. These arguments are not added until after register
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allocation.</p>
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</div><h3 id='tymethod.regclass_for_abi_type' class='method'><code id='regclass_for_abi_type.v'>fn <a href='#tymethod.regclass_for_abi_type' class='fnname'>regclass_for_abi_type</a>(&self, ty: <a class="struct" href="../../cranelift_codegen/ir/types/struct.Type.html" title="struct cranelift_codegen::ir::types::Type">Type</a>) -> <a class="type" href="../../cranelift_codegen/isa/registers/type.RegClass.html" title="type cranelift_codegen::isa::registers::RegClass">RegClass</a></code></h3><div class='docblock'><p>Get the register class that should be used to represent an ABI argument or return value of
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type <code>ty</code>. This should be the top-level register class that contains the argument
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registers.</p>
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<p>This function can assume that it will only be asked to provide register classes for types
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that <code>legalize_signature()</code> produces in <code>ArgumentLoc::Reg</code> entries.</p>
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</div><h3 id='tymethod.allocatable_registers' class='method'><code id='allocatable_registers.v'>fn <a href='#tymethod.allocatable_registers' class='fnname'>allocatable_registers</a>(&self, func: &<a class="struct" href="../../cranelift_codegen/ir/function/struct.Function.html" title="struct cranelift_codegen::ir::function::Function">Function</a>) -> RegisterSet</code></h3><div class='docblock'><p>Get the set of allocatable registers that can be used when compiling <code>func</code>.</p>
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<p>This set excludes reserved registers like the stack pointer and other special-purpose
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registers.</p>
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</div><h3 id='tymethod.emit_function_to_memory' class='method'><code id='emit_function_to_memory.v'>fn <a href='#tymethod.emit_function_to_memory' class='fnname'>emit_function_to_memory</a>(&self, func: &<a class="struct" href="../../cranelift_codegen/ir/function/struct.Function.html" title="struct cranelift_codegen::ir::function::Function">Function</a>, sink: &mut <a class="struct" href="../../cranelift_codegen/binemit/struct.MemoryCodeSink.html" title="struct cranelift_codegen::binemit::MemoryCodeSink">MemoryCodeSink</a>)</code></h3><div class='docblock'><p>Emit a whole function into memory.</p>
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</div></div><span class='loading-content'>Loading content...</span>
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<h2 id='provided-methods' class='small-section-header'>Provided methods<a href='#provided-methods' class='anchor'></a></h2><div class='methods'><h3 id='method.default_call_conv' class='method'><code id='default_call_conv.v'>fn <a href='#method.default_call_conv' class='fnname'>default_call_conv</a>(&self) -> <a class="enum" href="../../cranelift_codegen/isa/enum.CallConv.html" title="enum cranelift_codegen::isa::CallConv">CallConv</a></code></h3><div class='docblock'><p>Get the default calling convention of this target.</p>
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</div><h3 id='method.pointer_type' class='method'><code id='pointer_type.v'>fn <a href='#method.pointer_type' class='fnname'>pointer_type</a>(&self) -> <a class="struct" href="../../cranelift_codegen/ir/types/struct.Type.html" title="struct cranelift_codegen::ir::types::Type">Type</a></code></h3><div class='docblock'><p>Get the pointer type of this ISA.</p>
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</div><h3 id='method.pointer_width' class='method'><code id='pointer_width.v'>fn <a href='#method.pointer_width' class='fnname'>pointer_width</a>(&self) -> <a class="enum" href="../../target_lexicon/triple/enum.PointerWidth.html" title="enum target_lexicon::triple::PointerWidth">PointerWidth</a></code></h3><div class='docblock'><p>Get the width of pointers on this ISA.</p>
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</div><h3 id='method.pointer_bits' class='method'><code id='pointer_bits.v'>fn <a href='#method.pointer_bits' class='fnname'>pointer_bits</a>(&self) -> <a class="primitive" href="https://doc.rust-lang.org/nightly/std/primitive.u8.html">u8</a></code></h3><div class='docblock'><p>Get the width of pointers on this ISA, in units of bits.</p>
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</div><h3 id='method.pointer_bytes' class='method'><code id='pointer_bytes.v'>fn <a href='#method.pointer_bytes' class='fnname'>pointer_bytes</a>(&self) -> <a class="primitive" href="https://doc.rust-lang.org/nightly/std/primitive.u8.html">u8</a></code></h3><div class='docblock'><p>Get the width of pointers on this ISA, in units of bytes.</p>
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</div><h3 id='method.frontend_config' class='method'><code id='frontend_config.v'>fn <a href='#method.frontend_config' class='fnname'>frontend_config</a>(&self) -> <a class="struct" href="../../cranelift_codegen/isa/struct.TargetFrontendConfig.html" title="struct cranelift_codegen::isa::TargetFrontendConfig">TargetFrontendConfig</a></code></h3><div class='docblock'><p>Get the information needed by frontends producing Cranelift IR.</p>
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</div><h3 id='method.uses_cpu_flags' class='method'><code id='uses_cpu_flags.v'>fn <a href='#method.uses_cpu_flags' class='fnname'>uses_cpu_flags</a>(&self) -> <a class="primitive" href="https://doc.rust-lang.org/nightly/std/primitive.bool.html">bool</a></code></h3><div class='docblock'><p>Does the CPU implement scalar comparisons using a CPU flags register?</p>
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</div><h3 id='method.uses_complex_addresses' class='method'><code id='uses_complex_addresses.v'>fn <a href='#method.uses_complex_addresses' class='fnname'>uses_complex_addresses</a>(&self) -> <a class="primitive" href="https://doc.rust-lang.org/nightly/std/primitive.bool.html">bool</a></code></h3><div class='docblock'><p>Does the CPU implement multi-register addressing?</p>
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</div><h3 id='method.encode' class='method'><code id='encode.v'>fn <a href='#method.encode' class='fnname'>encode</a>(<br> &self, <br> func: &<a class="struct" href="../../cranelift_codegen/ir/function/struct.Function.html" title="struct cranelift_codegen::ir::function::Function">Function</a>, <br> inst: &<a class="enum" href="../../cranelift_codegen/ir/instructions/enum.InstructionData.html" title="enum cranelift_codegen::ir::instructions::InstructionData">InstructionData</a>, <br> ctrl_typevar: <a class="struct" href="../../cranelift_codegen/ir/types/struct.Type.html" title="struct cranelift_codegen::ir::types::Type">Type</a><br>) -> <a class="enum" href="https://doc.rust-lang.org/nightly/core/result/enum.Result.html" title="enum core::result::Result">Result</a><<a class="struct" href="../../cranelift_codegen/isa/struct.Encoding.html" title="struct cranelift_codegen::isa::Encoding">Encoding</a>, <a class="type" href="../../cranelift_codegen/isa/type.Legalize.html" title="type cranelift_codegen::isa::Legalize">Legalize</a>></code></h3><div class='docblock'><p>Encode an instruction after determining it is legal.</p>
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||
<p>If <code>inst</code> can legally be encoded in this ISA, produce the corresponding <code>Encoding</code> object.
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||
Otherwise, return <code>Legalize</code> action.</p>
|
||
<p>This is also the main entry point for determining if an instruction is legal.</p>
|
||
</div><h3 id='method.prologue_epilogue' class='method'><code id='prologue_epilogue.v'>fn <a href='#method.prologue_epilogue' class='fnname'>prologue_epilogue</a>(&self, func: &mut <a class="struct" href="../../cranelift_codegen/ir/function/struct.Function.html" title="struct cranelift_codegen::ir::function::Function">Function</a>) -> <a class="type" href="../../cranelift_codegen/type.CodegenResult.html" title="type cranelift_codegen::CodegenResult">CodegenResult</a><<a class="primitive" href="https://doc.rust-lang.org/nightly/std/primitive.unit.html">()</a>></code></h3><div class='docblock'><p>Compute the stack layout and insert prologue and epilogue code into <code>func</code>.</p>
|
||
<p>Return an error if the stack frame is too large.</p>
|
||
</div></div><span class='loading-content'>Loading content...</span><h2 id='implementations' class='small-section-header'>Trait Implementations<a href='#implementations' class='anchor'></a></h2><div id='implementations-list'><h3 id='impl-From%3C%26%27a%20(dyn%20TargetIsa%20+%20%27a)%3E' class='impl'><code class='in-band'>impl<'a> <a class="trait" href="https://doc.rust-lang.org/nightly/core/convert/trait.From.html" title="trait core::convert::From">From</a><&'a (dyn <a class="trait" href="../../cranelift_codegen/isa/trait.TargetIsa.html" title="trait cranelift_codegen::isa::TargetIsa">TargetIsa</a> + 'a)> for <a class="struct" href="../../cranelift_codegen/settings/struct.FlagsOrIsa.html" title="struct cranelift_codegen::settings::FlagsOrIsa">FlagsOrIsa</a><'a></code><a href='#impl-From%3C%26%27a%20(dyn%20TargetIsa%20+%20%27a)%3E' class='anchor'></a><a class='srclink' href='../../src/cranelift_codegen/settings.rs.html#358-365' title='goto source code'>[src]</a></h3><div class='impl-items'><h4 id='method.from' class="method hidden"><code id='from.v'>fn <a href='https://doc.rust-lang.org/nightly/core/convert/trait.From.html#tymethod.from' class='fnname'>from</a>(isa: &'a dyn <a class="trait" href="../../cranelift_codegen/isa/trait.TargetIsa.html" title="trait cranelift_codegen::isa::TargetIsa">TargetIsa</a>) -> <a class="struct" href="../../cranelift_codegen/settings/struct.FlagsOrIsa.html" title="struct cranelift_codegen::settings::FlagsOrIsa">FlagsOrIsa</a></code><a class='srclink' href='../../src/cranelift_codegen/settings.rs.html#359-364' title='goto source code'>[src]</a></h4><div class='docblock hidden'><p>Performs the conversion.</p>
|
||
</div></div></div>
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<h2 id='implementors' class='small-section-header'>Implementors<a href='#implementors' class='anchor'></a></h2><div class='item-list' id='implementors-list'></div><span class='loading-content'>Loading content...</span><script type="text/javascript">window.inlined_types=new Set([]);</script><script type="text/javascript" async
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src="../../implementors/cranelift_codegen/isa/trait.TargetIsa.js">
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