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Another shot at fixing the issues with (constant) struct literals and their addresses. See DMD2682, #218, #324. The idea is to separate the notion of const from 'this variable can always be replaced with its initializer' in the frontend. To do that, I introduced Declaration::isSameAsInitializer, which is overridden in VarDeclaration to return false for constants that have a struct literal initializer. So {{{ const S s = S(5); void foo() { auto ps = &s; } // is no longer replaced by void foo() { auto ps = &(S(5)); } }}} To make taking the address of a struct constant with a struct-initializer outside of function scope possible, I made sure that AddrExp::optimize doesn't try to run the argument's optimization with WANTinterpret - that'd again replace the constant with a struct literal temporary.
author Christian Kamm <kamm incasoftware de>
date Sun, 14 Jun 2009 19:49:58 +0200
parents eef8ac26c66c
children
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#ifndef LDC_GEN_COMPLEX_H
#define LDC_GEN_COMPLEX_H

const llvm::StructType* DtoComplexType(Type* t);
const LLType* DtoComplexBaseType(Type* t);

LLConstant* DtoConstComplex(Type* t, long double re, long double im);

LLConstant* DtoComplexShuffleMask(unsigned a, unsigned b);

LLValue* DtoRealPart(DValue* val);
LLValue* DtoImagPart(DValue* val);
DValue* DtoComplex(Loc& loc, Type* to, DValue* val);

void DtoComplexSet(LLValue* c, LLValue* re, LLValue* im);

void DtoGetComplexParts(Loc& loc, Type* to, DValue* c, LLValue*& re, LLValue*& im);

DValue* DtoComplexAdd(Loc& loc, Type* type, DValue* lhs, DValue* rhs);
DValue* DtoComplexSub(Loc& loc, Type* type, DValue* lhs, DValue* rhs);
DValue* DtoComplexMul(Loc& loc, Type* type, DValue* lhs, DValue* rhs);
DValue* DtoComplexDiv(Loc& loc, Type* type, DValue* lhs, DValue* rhs);
DValue* DtoComplexNeg(Loc& loc, Type* type, DValue* val);

LLValue* DtoComplexEquals(Loc& loc, TOK op, DValue* lhs, DValue* rhs);

DValue* DtoCastComplex(Loc& loc, DValue* val, Type* to);

#endif // LDC_GEN_COMPLEX_H