Compiler Explorer

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Rust source #1

CppInsights Quick-bench

Rust

(34, 1)

34

rustc 1.74.0 (Editor #1)

rustc nightly (Editor #1)

rustc nightly

1

<Compiling...>

rustc nightly - Compiling...

rustc 1.74.0

1

<Compiling...>

rustc 1.74.0 - Compiling...

Rust source #2

CppInsights Quick-bench

Rust

(3, 1)

2

#![feature(core_intrinsics, portable_simd)]

rustc nightly (Editor #2)

rustc nightly

1

<Compiling...>

rustc nightly - Compiling...

rustc nightly (Editor #2)

rustc nightly

1

<Compiling...>

rustc nightly - Compiling...

Diff Viewer rustc nightly -Copt-level=3 vs rustc 1.74.0 -Copt-level=3

Left:

rustc nightly -Copt-level=3

Assembly

Right:

rustc 1.74.0 -Copt-level=3

Assembly

1

1

Hello

CppInsights Quick-bench

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Compiler Explorer Settings

These settings control how Compiler Explorer acts for you. They are not preserved as part of shared URLs, and are persisted locally using browser local storage.

Colouring
Site behaviour
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Compilation

Site theme

Colourise lines to show how the source maps to the output

Make all colour schemes available regardless of theme

Line highlighting colour scheme

Default language

Keep page status per tab

Allow my source code to be temporarily stored for diagnostic purposes in the event of an error

Use last selected language when opening new Editors

Show community events

Vim editor mode

Ctrl+S behaviour

MakeCtrl+S include and save the file to a Tree if that's added to the UI

Pop up a dialog box whenCtrl+S is set to create a short link.

Desired Font Family in editors

Default font scale

Enable font ligatures

Automatically insert matching brackets and parentheses

Automatically insert matching quotes

Automatically surround selected text when typing brackets or quotes

Automatically indent code (reload page after changing)

Highlight linked code lines on hover

Highlight linked code indefinitely

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Use spaces for indentation

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Enable Word Wrapping

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Colourise matching bracket pairs

Compile automatically when source changes

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Delay before compiling: 2.00s

0.25s3s

Enable formatting on compilation (for supported languages)

Compile executor automatically when arguments change

Shake the status icon on argument warnings

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Libraries

To add a library, search for one you want and select the version in the dropdown. Or if you have favorited it before, just click the library name in the Favorites section. Libraries are installed using the conan.io package manager. Please note that Windows-based compilers currently do not support libraries. See this Github issue.

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Compiler overrides

To override a compiler's defaults, you can change the following options. Note that this might lead to errors and unsupported situations. These also only apply to compilation, not for executing your code.

Compiler environment variables

One environment variable per line, KEY=VALUE, that will be set during compilation.

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Runtime tools

To apply runtime tooling or settings when executing your code.

Runtime environment variables

One environment variable per line, KEY=VALUE.

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Timing

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Assembly

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GNAT Expanded Code

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rustc 1.74.0-Copt-level=3

Editor #1
Compiler #2

rustc nightly-Copt-level=3

Editor #1
Compiler #1

rustc 1.74.0-Copt-level=3

Editor #1
Compiler #2

rustc nightly-Cdebug-assertions=off -Cdebuginfo=0

Editor #2
Compiler #4

rustc nightly-Copt-level=3

Editor #1
Compiler #1

rustc nightly-Copt-level=3 --crate-type=lib

Editor #2
Compiler #3