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Add support for new parameter attribute returned.

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Starting with LLVM 3.3 a new parameter attribute `returned` is supported.
The attribute states that the parameter is the return value, too. This is the
case in constructors. (Destructors and postblits do not return `this`.)
Attribute `returned` is now added to the `this` parameter of constructors.
This commit is contained in:
kai
2013-04-24 07:17:45 +02:00
parent b86b62835a
commit 2e7884a80d
1 changed files with 10 additions and 1 deletions
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11
gen/functions.cpp
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@@ -129,7 +129,16 @@ llvm::FunctionType* DtoFunctionType(Type* type, Type* thistype, Type* nesttype,
// member functions
if (thistype)
{
fty.arg_this = new IrFuncTyArg(thistype, thistype->toBasetype()->ty == Tstruct);
#if LDC_LLVM_VER >= 303
llvm::AttrBuilder attrBuilder;
if (f->funcdecl && f->funcdecl->isCtorDeclaration())
attrBuilder.addAttribute(llvm::Attribute::Returned);
#endif
fty.arg_this = new IrFuncTyArg(thistype, thistype->toBasetype()->ty == Tstruct
#if LDC_LLVM_VER >= 303
, attrBuilder
#endif
);
lidx++;
}