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view ir/irforw.h @ 1275:bedf0bfb8fdb
Implement first D-specific optimization pass: -simplify-drtcalls.
It uses the machinery of the standard -simplify-libcalls pass, but optimizes
calls to the D runtime instead of calls to C libraries.
At the moment, these optimizations are implemented by this pass:
- Avoid the runtime call for `arr.length = newlen` if it can determine that
the new length isn't longer than the old one.
- Ditto for `cast(T[]) arr` if it will clearly always succeed.
(e.g. if the length of the original array is zero, or if the old element
size is a multiple of the new element size)
author | Frits van Bommel <fvbommel wxs.nl> |
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date | Tue, 28 Apr 2009 21:58:06 +0200 |
parents | eef8ac26c66c |
children |
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#ifndef LDC_IR_IRFORW_H #define LDC_IR_IRFORW_H // dmd forward declarations struct Module; struct Dsymbol; struct Declaration; struct VarDeclaration; struct FuncDeclaration; struct AggregateDeclaration; struct StructDeclaration; struct ClassDeclaration; struct InterfaceDeclaration; struct Expression; struct BaseClass; struct Array; struct Argument; struct Type; struct TypeStruct; struct TypeClass; struct TypeEnum; struct TypeArray; struct TypeFunction; // llvm forward declarations namespace llvm { class Value; class GlobalValue; class GlobalVariable; class Function; class Constant; class ConstantStruct; class ConstantArray; class TargetData; class Type; class StructType; class ArrayType; class PointerType; class BasicBlock; class Instruction; } #endif