Hi!
It appeared to me that runFunction in JIT.cpp is slow for repeatedly
executing the same function with nontrivial arguments since the "Stub"
function in JiT.cpp:183 (LLVM 1.9) is compiled again and again.
Is there something I can do to accelerate this?
g
Hi G,
Have you tried using this method instead?
/// getPointerToFunctionOrStub - If the specified function has been
/// code-gen’d, return a pointer to the function. If not, compile it, or use
/// a stub to implement lazy compilation if available.
///
virtual void *getPointerToFunctionOrStub(Function *F);
If you can use it, this eliminates out the overhead in question, reducing it to an indirect function call.
— G