Displaying 2 results from an estimated 2 matches for "isdynamiccallee".
2007 Aug 09
1
[LLVMdev] Tail call optimization thoughts
...urn
machine instruction are used to emit code that adjust the
stackpointer and jumps to the tailcallee (either label or register).
Like it is done for EH_RETURN.
in X86RegisterInfo.cpp we would then have
TargetRegisterInfo::emitEpilogue() {
...
if (RetOpcode== X86::TC_RETURN){
if (isDynamicCallee(RetOpCode))
add esp {stack adjustment from tc_return}
jmp {register operand of tc_return}
} else
add esp {stack adjustment from tc_return}
jmp {targetfunction operand}
}
}
resulting code for dynamic function
mov ecx esi #load callee, say esi holds th...
2007 Aug 08
2
[LLVMdev] Destination register needs to be valid after callee saved register restore when tail calling
Hello, Arnold.
> with the sentence i tried to express the question whether there is a
> way to persuade the code generator to use another register to load (or
> move) the function pointer to (right before the callee saved register
> restore) but thinking a little further that's nonsense.
Why don't define some special op for callee address and custom lower it?
I really