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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>
date Tue, 28 Apr 2009 21:58:06 +0200
parents 3cf0066e6faf
children 45aca7e7cc88
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#ifndef LLVMD_GEN_STRUCTS_H
#define LLVMD_GEN_STRUCTS_H

struct StructInitializer;

/// Generate code for the struct.
void DtoResolveStruct(StructDeclaration* sd);

/// Build constant struct initializer.
LLConstant* DtoConstStructInitializer(StructInitializer* si);

/// Build values for a struct literal.
std::vector<llvm::Value*> DtoStructLiteralValues(const StructDeclaration* sd, const std::vector<llvm::Value*>& inits);

/// Returns a boolean=true if the two structs are equal.
LLValue* DtoStructEquals(TOK op, DValue* lhs, DValue* rhs);

/// index a struct one level
LLValue* DtoIndexStruct(LLValue* src, StructDeclaration* sd, VarDeclaration* vd);

#endif