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view ir/irtypestruct.h @ 1479:4f7d50c744ed
Rewrite `StructLiteralExp::toElem` to store individual fields instead of
generating a constant to fill the entire struct with a single `store`.
This is much more efficient at compile time (fixing #320) and vastly reduces
the size of the emitted code. Since LLVM no longer needs to keep the data for
all fields in "registers" until the store happens, it should also be more
efficient at run time in cases where the fields aren't assigned with constants.
There's also some code clean-up by removing duplicated logic.
author | Frits van Bommel <fvbommel wxs.nl> |
---|---|
date | Sat, 06 Jun 2009 20:16:13 +0200 |
parents | dd135ff697fa |
children |
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#ifndef __LDC_IR_IRTYPESTRUCT_H__ #define __LDC_IR_IRTYPESTRUCT_H__ #include "ir/irtype.h" ////////////////////////////////////////////////////////////////////////////// struct AggregateDeclaration; struct StructDeclaration; struct TypeStruct; ////////////////////////////////////////////////////////////////////////////// class IrTypeAggr : public IrType { public: /// IrTypeAggr(AggregateDeclaration* ad); /// IrTypeAggr* isAggr() { return this; } /// typedef std::vector<VarDeclaration*>::iterator iterator; /// iterator def_begin() { return default_fields.begin(); } /// iterator def_end() { return default_fields.end(); } protected: /// AggregateDeclaration this type represents. AggregateDeclaration* aggr; /// Sorted list of all default fields. /// A default field is a field that contributes to the default initializer /// and the default type, and thus it has it's own unique GEP index into /// the aggregate. /// For classes, field of any super classes are not included. std::vector<VarDeclaration*> default_fields; }; ////////////////////////////////////////////////////////////////////////////// class IrTypeStruct : public IrTypeAggr { public: /// IrTypeStruct(StructDeclaration* sd); /// IrTypeStruct* isStruct() { return this; } /// const llvm::Type* buildType(); protected: /// StructDeclaration this type represents. StructDeclaration* sd; /// DMD TypeStruct of this type. TypeStruct* ts; }; ////////////////////////////////////////////////////////////////////////////// #endif