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<p class=MsoNormal>It seems that Tablegen is generating intrinsic ID’s
off by in DAGISel.inc<o:p></o:p></p>
<p class=MsoNormal><o:p> </o:p></p>
<p class=MsoNormal>In DAGISel.inc, I have the following pattern:<o:p></o:p></p>
<p class=MsoNormal>int64_t CN1 = Tmp0->getZExtValue();<o:p></o:p></p>
<p class=MsoNormal><o:p> </o:p></p>
<p class=MsoNormal> // Pattern: (intrinsic_w_chain:f32 <b>103</b>:iPTR,
GPRF32:f32:$src0, GPRF32:f32:$src1, GPRF32:f32:$src2)<o:p></o:p></p>
<p class=MsoNormal> // Emits: (MACRO_FMA_f32:f32
GPRF32:f32:$src0, GPRF32:f32:$src1, GPRF32:f32:$src2)<o:p></o:p></p>
<p class=MsoNormal> // Pattern complexity = 8 cost =
1 size = 0<o:p></o:p></p>
<p class=MsoNormal> if (CN1 == INT64_C(<b>103</b>)) {<o:p></o:p></p>
<p class=MsoNormal> SDValue N2 = N.getOperand(2);<o:p></o:p></p>
<p class=MsoNormal> SDValue N3 = N.getOperand(3);<o:p></o:p></p>
<p class=MsoNormal> SDValue N4 = N.getOperand(4);<o:p></o:p></p>
<p class=MsoNormal> if
(N2.getNode()->getValueType(0) == MVT::f32 &&<o:p></o:p></p>
<p class=MsoNormal>
N3.getNode()->getValueType(0) == MVT::f32 &&<o:p></o:p></p>
<p class=MsoNormal>
N4.getNode()->getValueType(0) == MVT::f32) {<o:p></o:p></p>
<p class=MsoNormal> SDNode *Result =
Emit_28(N, AMDIL::MACRO_FMA_f32, MVT::f32);<o:p></o:p></p>
<p class=MsoNormal> return Result;<o:p></o:p></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>However, when MACRO_FMA is called, Tmp0->getZExtValue()
returns 102!<o:p></o:p></p>
<p class=MsoNormal><o:p> </o:p></p>
<p class=MsoNormal>The section of code where this is probably wrong is:<o:p></o:p></p>
<p class=MsoNormal><span style='font-size:10.0pt;font-family:"Courier New";
color:blue'>CodeGenDAGPatterns.cpp:1238 unsigned</span><span style='font-size:
10.0pt;font-family:"Courier New"'> IID =
getDAGPatterns().getIntrinsicID(Operator)+1;<o:p></o:p></span></p>
<p class=MsoNormal><span style='font-size:10.0pt;font-family:"Courier New"'>Or
here:<o:p></o:p></span></p>
<p class=MsoNormal><span style='font-size:10.0pt;font-family:"Courier New"'>CodeGenDAGPatterns.h:524<o:p></o:p></span></p>
<p class=MsoNormal>const CodeGenIntrinsic &getIntrinsicInfo(unsigned IID)
const {<o:p></o:p></p>
<p class=MsoNormal> assert(IID-1 < Intrinsics.size()
&& "Bad intrinsic ID!");<o:p></o:p></p>
<p class=MsoNormal> return Intrinsics[IID-1];<o:p></o:p></p>
<p class=MsoNormal> }<o:p></o:p></p>
<p class=MsoNormal><o:p> </o:p></p>
<p class=MsoNormal>These are the only locations where I can find that it is
returning the IID off by 1.<o:p></o:p></p>
<p class=MsoNormal><o:p> </o:p></p>
<p class=MsoNormal><o:p> </o:p></p>
<p class=MsoNormal>If someone can let me know what I need to do in order to fix
this it would be greatly appreciated.<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><o:p> </o:p></p>
<p class=MsoNormal><o:p> </o:p></p>
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