If the return type of a function is void, ReturnType is not set, but we
used to emit a RVOPtr instruction, which doesn't make sense for a
function returning void.
Differential Revision: https://reviews.llvm.org/D153649
When calling functions in the checkingPotentialConstantExpression mode,
we cannot have arguments (including This + RVO pointers) for the
toplevel callee, but the functions called from within can work just
fine, or at least we succeed in pushing their arguments on the stack, so
we must also succeed in removing them again.
Differential Revision: https://reviews.llvm.org/D150358
Function pointers can be compared for (in)equality but, but LE, GE, LT,
and GT opcodes should emit an error and abort.
Differential Revision: https://reviews.llvm.org/D149154
'Params' is a member of the ByteCodeEmitter. We only added the
parameters the first time we saw the function, so subsequent visits
didn't work if they had (and used) parameters.
Just do the work everytime we see a function.
Differential Revision: https://reviews.llvm.org/D141681
Since we now handle functions without a body as well, we can't just use
getHasBody() anymore. Funtions that haven't been defined yet are those
that don't have a body *and* aren't valid.
Also, just pass the information about whether the Function has a body or
not along from the FunctionDecl.
Differential Revision: https://reviews.llvm.org/D141591
Add Call() and CallVoid() ops and use them to call functions. Only
FunctionDecls are supported for now.
Differential Revision: https://reviews.llvm.org/D132286
