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<p class=MsoNormal>Is there anywhere in the codebase that actually uses the ConvertAction
to determine how conversion functions are lowered?<o:p></o:p></p>
<p class=MsoNormal><o:p> </o:p></p>
<p class=MsoNormal>In <span style='font-size:10.0pt;font-family:"Courier New"'>SDValue
SelectionDAGLegalize::LegalizeOp(SDValue Op)<o:p></o:p></span></p>
<p class=MsoNormal><span style='font-size:10.0pt;font-family:"Courier New"'><o:p> </o:p></span></p>
<p class=MsoNormal><span style='font-size:10.0pt;font-family:"Courier New"'>...</span><o:p></o:p></p>
<p class=MsoNormal style='text-autospace:none'><span style='font-size:10.0pt;
font-family:"Courier New";color:blue'> case</span><span style='font-size:
10.0pt;font-family:"Courier New"'> ISD::SINT_TO_FP:<o:p></o:p></span></p>
<p class=MsoNormal style='text-autospace:none'><span style='font-size:10.0pt;
font-family:"Courier New"'> <span style='color:blue'>case</span>
ISD::UINT_TO_FP:<o:p></o:p></span></p>
<p class=MsoNormal style='text-autospace:none'><span style='font-size:10.0pt;
font-family:"Courier New"'> <span style='color:blue'>case</span>
ISD::EXTRACT_VECTOR_ELT:<o:p></o:p></span></p>
<p class=MsoNormal style='text-autospace:none'><span style='font-size:10.0pt;
font-family:"Courier New"'> <b> Action =
TLI.getOperationAction(Node->getOpcode(),<o:p></o:p></b></span></p>
<p class=MsoNormal><b><span style='font-size:10.0pt;font-family:"Courier New"'>
Node->getOperand(0).getValueType());<o:p></o:p></span></b></p>
<p class=MsoNormal><b><span style='font-size:10.0pt;font-family:"Courier New"'><o:p> </o:p></span></b></p>
<p class=MsoNormal><span style='font-size:10.0pt;font-family:"Courier New"'>This
seems incorrect as SINT_TO_FP should be querying the convert action, and not
the Operation action.<o:p></o:p></span></p>
<p class=MsoNormal><span style='font-size:10.0pt;font-family:"Courier New"'><o:p> </o:p></span></p>
<p class=MsoNormal><span style='font-size:10.0pt;font-family:"Courier New"'>i.e.
it should be:<o:p></o:p></span></p>
<p class=MsoNormal style='text-autospace:none'><span style='font-size:10.0pt;
font-family:"Courier New";color:blue'> case</span><span style='font-size:
10.0pt;font-family:"Courier New"'> ISD::SINT_TO_FP:<o:p></o:p></span></p>
<p class=MsoNormal style='text-autospace:none'><span style='font-size:10.0pt;
font-family:"Courier New"'> <span style='color:blue'>case</span>
ISD::UINT_TO_FP:<o:p></o:p></span></p>
<p class=MsoNormal style='text-autospace:none'><span style='font-size:10.0pt;
font-family:"Courier New";color:blue'> case</span><span style='font-size:
10.0pt;font-family:"Courier New"'> ISD::FP_TO_SINT:<o:p></o:p></span></p>
<p class=MsoNormal style='text-autospace:none'><span style='font-size:10.0pt;
font-family:"Courier New";color:blue'> case</span><span style='font-size:
10.0pt;font-family:"Courier New"'> ISD::FP_TO_UINT:<o:p></o:p></span></p>
<p class=MsoNormal style='text-autospace:none'><span style='font-size:10.0pt;
font-family:"Courier New"'> <b> Action = TLI.getConvertAction(Node->getValueType(),<o:p></o:p></b></span></p>
<p class=MsoNormal><b><span style='font-size:10.0pt;font-family:"Courier New"'>
Node->getOperand(0).getValueType());<o:p></o:p></span></b></p>
<p class=MsoNormal style='text-autospace:none'><span style='font-size:10.0pt;
font-family:"Courier New"'> break;<o:p></o:p></span></p>
<p class=MsoNormal style='text-autospace:none'><span style='font-size:10.0pt;
font-family:"Courier New"'> <span style='color:blue'>case</span>
ISD::EXTRACT_VECTOR_ELT:<o:p></o:p></span></p>
<p class=MsoNormal style='text-autospace:none'><span style='font-size:10.0pt;
font-family:"Courier New"'> <b> Action =
TLI.getOperationAction(Node->getOpcode(),<o:p></o:p></b></span></p>
<p class=MsoNormal><b><span style='font-size:10.0pt;font-family:"Courier New"'>
Node->getOperand(0).getValueType());<o:p></o:p></span></b></p>
<p class=MsoNormal><o:p> </o:p></p>
<p class=MsoNormal><o:p> </o:p></p>
<p class=MsoNormal><o:p> </o:p></p>
<p class=MsoNormal>Is this assumption correct? I cannot get LLVM to expand fp64
-> i64 nodes into either to a custom lowered function or expanded to a
software function call.<o:p></o:p></p>
<p class=MsoNormal><o:p> </o:p></p>
<p class=MsoNormal><o:p> </o:p></p>
<p class=MsoNormal>Is getConvertAction being removed? If so, how should I
handle this in the backend?<o:p></o:p></p>
<p class=MsoNormal><o:p> </o:p></p>
<p class=MsoNormal>Thanks,<o:p></o:p></p>
<p class=MsoNormal>Micah<o:p></o:p></p>
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