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Types of Compilers
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AOT Compiler
An Ahead-Of-Time (AOT) compiler translates high-level code into machine code before the program is run, resulting in faster execution at runtime. It's typically used in systems where performance is crucial and must be guaranteed beforehand, such as in embedded systems or game engines.
JIT Compiler
Just-In-Time (JIT) compiler translates code at runtime, just before it is executed, aiming to improve execution speed by optimizing the compiled code based on real-time usage patterns. Commonly used in managed runtime environments like Java's JVM or .NET's CLR.
Multi Pass Compiler
Multi pass compilers perform several analysis and translation phases on the source code, allowing for more thorough optimization at the cost of longer compile times. They are commonly used when the efficiency of the resulting executable is paramount.
Recompilation Avoidance Compiler
Recompilation avoidance compilers detect which parts of a program need to be recompiled after a change, reducing unnecessary work. This approach is akin to incremental compilers and is particularly helpful in large codebases to expedite the development cycle.
Source-to-Source Compiler
Also known as a transcompiler, a source-to-source compiler translates code from one high-level programming language to another. Frequently used for porting software to new platforms, language migration, or leveraging different language features.
Incremental Compiler
An incremental compiler compiles only the parts of a program that have changed since the last compilation, which can significantly decrease development time. Ideal for large projects where full compilations would be time-consuming.
Single Pass Compiler
A single pass compiler analyzes and translates the source code in one sweep, without looping back over previously processed code. It's faster but generally less optimizing than multipass compilers and used when quick compilation is more important than highly optimized output.
Optimizing Compiler
An optimizing compiler aims to improve the efficiency and performance of the generated code by applying various optimization techniques. These compilers are essential for high-performance computing and systems with limited resources.
Cross Compiler
A cross compiler is designed to produce executable code for a platform different from the one on which the compiler is running. It's commonly used for developing software for embedded systems, where the target hardware differs from the developer's machine.
Dynamic Compiler
A dynamic compiler performs compilation during the execution of a program, adapting the produced machine code to the current execution context. It's similar to a JIT compiler with a focus on optimizing for the program's changing state during runtime.
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