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stout
2014 Jul 29
2
[LLVMdev] to lower "write to argument pointer"
...ng src:
"
// it is the frame index node corresponding to input pointer
SDvalue frindex = Op.getoperand(3);
…
SDValue returnValue = DAG.getNode(myNode1, DL, VT….);
SDValue dstValue = DAG.getNode(myNode2, DL, VT….);
// to save the value to dst pointer, I think I need some call like
SDValue dstOut = DAG.getStore(chain, DL, dstValue, FrameIndex, MachinePointerInfo(), false, false, 0);
“
I have two questions here:
(1) should I return some merges values( returnValue, DstValue) ? or only return returnValue is right? ( the dag dumped out looks better if I return the merged values)
(2) How the...