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view ir/irforw.h @ 1499:df11cdec45a2
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_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