search for: __z5test3v

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Did you mean: __z5test2v
2014 Feb 08
2
[LLVMdev] selecting ISD node - help
...Node(); but I've a couple of problems: getCopyToReg doesn't show on the final assembly __Z5test2v proc near push ebp mov ebp, esp rdmsr pop ebp retn __Z5test2v endp When I add rdmsr + rdmsr, first the rdmsr calls are made and only then he adds eax, eax. __Z5test3v proc near push ebp mov ebp, esp rdmsr rdmsr add eax, eax pop ebp retn __Z5test3v endp Maybe it's because I use MF.addLiveIn but when I tried using X86::EAX it failed with the message: # Machine code for function _Z5test2v: Post SSA BB#0: derived fr...
2014 Feb 08
2
[LLVMdev] selecting ISD node - help
Hey, I wanted to add an intrinsics to read MSRs. So I added the intrinsics and lowered it to a new ISD node I created ISD::RDMSR, its first operand is the MSR id. I added a case in X86DAGToDAGISel::Select for ISD::RDMSR. Now I know rdmsr works like so: mov r/ecx, <id> rdmsr r/eax holds the lower 32/64 bit >From what I understood this needs a Token Factor node, nodes which are