Compiler Optimizations

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The compiler does several optimizations during the code generation. Among them are:

• Integer and Float constants and standard operations on them are evaluated and only the result is emitted into code.
• String and char constants are concatenated during compilation.
• Concatenating multiple strings uses the multiple parameter overloads of String.Concat.
• Calls to non-virtual empty methods are dropped.
• Private/assembly empty methods that are not called are dropped from the result.
• References that are not used are dropped from the result.
• Ret and code after an exit/break/raise are removed.
• Unreachable code is removed (and warned about).
• Inline local variables are only initialized to their default value if they are not always assigned.
• If statements with an expression that can never be true are removed.

Area: Oxygene Language
Compiler version: Oxygene 5

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