Converts expressions to Intermediate Representation (IR) for the backend.
bool
ISX64REF(Declaration
var);
If variable var is a value that will actually be passed as a reference
Parameters:Declarationvar | parameter variable |
Returns:true if actually implicitly passed by reference
elem*
elAssign(elem*
e1, elem*
e2, Type
t, type*
tx);
Generate a copy from e2 to e1.
Parameters:elem*e1 | lvalue |
elem*e2 | rvalue |
Typet | value type |
type*tx | if !null, then t converted to C type |
bool
type_zeroCopy(type*
t);
Determine if zero bits need to be copied for this backend type
Symbol*
toStringSymbol(const(char)*
str, size_t
len, size_t
sz);
Write read-only string to object file, create a local symbol for it. Makes a copy of str's contents, does not keep a reference to it.
Parameters:const(char)*str | string |
size_tlen | number of code units in string |
size_tsz | number of bytes per code unit |
Symbol*
toStringSymbol(StringExp
se);
Turn StringExp into Symbol.
void
toTraceGC(ref IRState
irs, elem*
e, const ref Loc
loc);
Replace call to GC allocator with call to tracing GC allocator.
Parameters:IRStateirs | to get function from |
elem*e | elem to modify in place |
Locloc | to get file/line from |
elem*
toElemDtor(Expression
e, ref IRState
irs);
Convert Expression to elem, then append destructors for any temporaries created in elem.
Parameters:Expressione | Expression to convert |
IRStateirs | context |
Returns:generated elem tree
elem*
addressElem(elem*
e, Type
t, bool
alwaysCopy = false);
Take address of an elem. Accounts for e being an rvalue by assigning the rvalue to a temp.
Parameters:elem*e | elem to take address of |
Typet | Type of elem |
boolalwaysCopy | when true, always copy e to a tmp |
Returns:the equivalent of &e
Reset stringTab[] between object files being emitted, because the symbols are local.
bool
isDllImported(Dsymbol
var);
Figure out whether a data symbol should be dllimported
Parameters:Dsymbolvar | declaration of the symbol |
Returns:true if symbol should be imported from a DLL
Symbol*
toExtSymbol(Dsymbol
s);
Generate a backend symbol for a frontend symbol
Returns:the backend symbol or the associated symbol in the import table if it is expected to be imported from a DLL
elem*
toElem(Expression
e, ref IRState
irs);
Convert Expression to backend elem.
Parameters:Expressione | expression tree |
IRStateirs | context |
Returns:backend elem tree
