Posts Tagged il2cpp

How IL2CPP Calls Burst

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Ever wonder how code compiled with IL2CPP can call code compiled by Burst? Today we’ll dive into the details and find out!

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IL2CPP Output for C# 7.3: Local functions, fixed, and stackalloc

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Continuing the series, today we’ll dive into local functions, fixed-size buffers, fixed blocks on arbitrary types with GetPinnableReference, and stackalloc initializers to see how they’re all implemented in C++ and what assembly code ends up actually running on the CPU.

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IL2CPP Output for C# 7.3: Pattern Matching

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Last week we started exploring the new features of C# 7.3 in Unity 2018.3 by delving into tuples. This week we’ll continue and look at pattern matching. Read on to see how the many forms of pattern matching are actually implemented by IL2CPP!

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IL2CPP Output for C# 7.3: Tuples

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Unity 2018.3 officially launched last Thursday and with it comes support for the very latest version of C#: 7.3. This includes four new versions—7.0, 7.1, 7.2, and 7.3—so it’s a big upgrade from the C# 6 that we’ve had since 2018.1. Today we’ll begin an article series to learn what happens when we use some of the new features with IL2CPP. We’ll look at the C++ it outputs and even what the C++ compiles to so we know what the CPU will end up executing. Specifically, we’ll focus on the new tuples feature and talk about creating, naming, deconstructing, and comparing them.

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How Async and Await Work

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Last week’s article tested the performance of the async and await keywords plus the C# Task system against Unity’s new C# jobs system. This week we’ll go in depth with async and await to learn how they work, how they relate to the Task system, and how we can customize them for our own uses.

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IL2CPP Output for Iterators, Switch, and Using

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Today we’ll look at the C++ code that IL2CPP outputs when we use iterator functions (those that yield), switch statements, and using blocks. What are you really telling the computer to do when you use these C# features? Read on to find out.

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How NativeArray Works

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NativeArray<T> is a new type introduced recently in Unity 2018.1. It’s like List<T> except it’s backed by an unmanaged array instead of a managed array. It’s also a struct instead of a class. This means it creates no garbage for the GC to later collect. That’s the surface level description, but today we’ll go in depth to find out how it really works and learn some interesting facts along the way.

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C# 6 in IL2CPP

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Unity 2018.1 was released last week and with it comes support for C# 6. Today we’ll take a look at the C++ that IL2CPP generates when we use the new features in C# 6. Warning: one of them is buggy and shouldn’t be used.

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How IL2CPP implements lock, volatile, [ThreadStatic], and Interlocked

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Writing multi-threaded code is one of the keys to maximizing performance. Currently, this means creating your own threads and synchronizing them with C# keywords like lock and volatile as well as .NET classes like [ThreadStatic] and Interlocked. Today we’ll take a look at how these are implemented behind the scenes by IL2CPP to get some understanding of what we’re really telling the computer to do when we use them.

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IL2CPP Output: readonly, sizeof, IntPtr, typeof, GetType

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Today’s article looks at the IL2CPP and C++ compiler output for a variety of C# language features. Do you want to know what happens when you use them? Read on to find out!

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