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<p class="MsoNormal" style="margin-bottom:12.0pt">Hi,<o:p></o:p></p>
<p class="MsoNormal" style="margin-bottom:12.0pt">For the development of a new micro-controller backend, I try to lowering the following store SDNode: t5: ch = store<ST2[%ptr2](align=4)> t0, Constant:i16<3>, FrameIndex:i16<1>, undef:i16<o:p></o:p></p>
<p class="MsoNormal" style="margin-bottom:12.0pt">I have defined the following instruction and associated DAG pattern.<o:p></o:p></p>
<p class="MsoNormal" style="text-autospace:none"><span style="font-size:10.0pt;font-family:Monospace"> def MOVSUTO_A_i32o : CLPFPU_A_i32o_Inst<0b1000001101,<o:p></o:p></span></p>
<p class="MsoNormal" style="text-autospace:none"><span style="font-size:10.0pt;font-family:Monospace"> (ins IMM16Operand:$ImmA,FPUaOffsetOperand:$OffsetB),<o:p></o:p></span></p>
<p class="MsoNormal" style="text-autospace:none"><span style="font-size:10.0pt;font-family:Monospace"> (outs ),<o:p></o:p></span></p>
<p class="MsoNormal" style="text-autospace:none"><span style="font-size:10.0pt;font-family:Monospace"> [],<o:p></o:p></span></p>
<p class="MsoNormal" style="text-autospace:none"><span style="font-size:10.0pt;font-family:Monospace"> "movsuto_a\t$ImmA,$OffsetB","I32O",<o:p></o:p></span></p>
<p class="MsoNormal" style="text-autospace:none"><span style="font-size:10.0pt;font-family:Monospace"> [(store (i16 IMM16Operand:$ImmA), FPUaOffsetOperand:$OffsetB)],NoItinerary>;<o:p></o:p></span></p>
<p class="MsoNormal" style="margin-bottom:12.0pt"><o:p> </o:p></p>
<p class="MsoNormal" style="margin-bottom:12.0pt">While building CLPGenDAGISel.inc, I got the following error:<o:p></o:p></p>
<p class="MsoNormal" style="margin-bottom:12.0pt">-------------------------------------------------------------------------------------------------<o:p></o:p></p>
<p class="MsoNormal" style="margin-bottom:12.0pt">Unknown leaf kind: IMM16Operand:i16:$ImmA<o:p></o:p></p>
<p class="MsoNormal" style="margin-bottom:12.0pt">…<o:p></o:p></p>
<p class="MsoNormal" style="margin-bottom:12.0pt">#7 0x00000000005210a1 (anonymous namespace)::MatcherGen::EmitLeafMatchCode(llvm::TreePatternNode const*) /home/dte/Projects/CLP/clp-llvm/trunk/llvm-project/llvm/utils/TableGen/DAGISelMatcherGen.cpp:286:0<o:p></o:p></p>
<p class="MsoNormal" style="margin-bottom:12.0pt">-------------------------------------------------------------------------------------------------<o:p></o:p></p>
<p class="MsoNormal" style="margin-bottom:12.0pt">While looking the DAGISelMatcherGen.cpp around line 286 (version 3.8.0), I’ve found such a kind of code
<o:p></o:p></p>
<p class="MsoNormal" style="margin-bottom:12.0pt">-------------------------------------------------------------------------------------------------<o:p></o:p></p>
<p class="MsoNormal" style="text-autospace:none"><span style="font-size:10.0pt;font-family:Monospace;color:black">
</span><span style="font-size:10.0pt;font-family:Monospace;color:#3F7F5F">// Direct match against an integer constant.</span><span style="font-size:10.0pt;font-family:Monospace"><o:p></o:p></span></p>
<p class="MsoNormal" style="text-autospace:none"><span style="font-size:10.0pt;font-family:Monospace;color:black">
</span><b><span style="font-size:10.0pt;font-family:Monospace;color:#7F0055">if</span></b><span style="font-size:10.0pt;font-family:Monospace;color:black"> (</span><span style="font-size:10.0pt;font-family:Monospace;color:#005032">IntInit</span><span style="font-size:10.0pt;font-family:Monospace;color:black">
*II = dyn_cast<</span><span style="font-size:10.0pt;font-family:Monospace;color:#005032">IntInit</span><span style="font-size:10.0pt;font-family:Monospace;color:black">>(N->getLeafValue())) {</span><span style="font-size:10.0pt;font-family:Monospace"><o:p></o:p></span></p>
<p class="MsoNormal" style="text-autospace:none"><span style="font-size:10.0pt;font-family:Monospace;color:black">
</span><span style="font-size:10.0pt;font-family:Monospace;color:#3F7F5F">// If this is the root of the
<u>dag</u> we're matching, we emit a redundant opcode</span><span style="font-size:10.0pt;font-family:Monospace"><o:p></o:p></span></p>
<p class="MsoNormal" style="text-autospace:none"><span style="font-size:10.0pt;font-family:Monospace;color:black">
</span><span style="font-size:10.0pt;font-family:Monospace;color:#3F7F5F">// check to ensure that this gets folded into the normal top-level</span><span style="font-size:10.0pt;font-family:Monospace"><o:p></o:p></span></p>
<p class="MsoNormal" style="text-autospace:none"><span style="font-size:10.0pt;font-family:Monospace;color:black">
</span><span style="font-size:10.0pt;font-family:Monospace;color:#3F7F5F">// OpcodeSwitch.</span><span style="font-size:10.0pt;font-family:Monospace"><o:p></o:p></span></p>
<p class="MsoNormal" style="text-autospace:none"><span style="font-size:10.0pt;font-family:Monospace;color:black">
</span><b><span style="font-size:10.0pt;font-family:Monospace;color:#7F0055">if</span></b><span style="font-size:10.0pt;font-family:Monospace;color:black"> (N ==
</span><span style="font-size:10.0pt;font-family:Monospace;color:#0000C0">Pattern</span><span style="font-size:10.0pt;font-family:Monospace;color:black">.<span style="background:silver;mso-highlight:silver">getSrcPattern</span>()) {</span><span style="font-size:10.0pt;font-family:Monospace"><o:p></o:p></span></p>
<p class="MsoNormal" style="text-autospace:none"><span style="font-size:10.0pt;font-family:Monospace;color:black">
</span><b><span style="font-size:10.0pt;font-family:Monospace;color:#7F0055">const</span></b><span style="font-size:10.0pt;font-family:Monospace;color:black">
</span><span style="font-size:10.0pt;font-family:Monospace;color:#005032">SDNodeInfo</span><span style="font-size:10.0pt;font-family:Monospace;color:black"> &NI =
</span><span style="font-size:10.0pt;font-family:Monospace;color:#0000C0">CGP</span><span style="font-size:10.0pt;font-family:Monospace;color:black">.<u>getSDNodeInfo</u>(</span><span style="font-size:10.0pt;font-family:Monospace;color:#0000C0">CGP</span><span style="font-size:10.0pt;font-family:Monospace;color:black">.<u>getSDNodeNamed</u>(</span><span style="font-size:10.0pt;font-family:Monospace;color:#2A00FF">"<u>imm</u>"</span><span style="font-size:10.0pt;font-family:Monospace;color:black">));</span><span style="font-size:10.0pt;font-family:Monospace"><o:p></o:p></span></p>
<p class="MsoNormal" style="text-autospace:none"><span style="font-size:10.0pt;font-family:Monospace;color:black"> AddMatcher(</span><b><span style="font-size:10.0pt;font-family:Monospace;color:#7F0055">new</span></b><span style="font-size:10.0pt;font-family:Monospace;color:black">
</span><span style="font-size:10.0pt;font-family:Monospace;color:#005032">CheckOpcodeMatcher</span><span style="font-size:10.0pt;font-family:Monospace;color:black">(NI));</span><span style="font-size:10.0pt;font-family:Monospace"><o:p></o:p></span></p>
<p class="MsoNormal" style="text-autospace:none"><span style="font-size:10.0pt;font-family:Monospace;color:black"> }</span><span style="font-size:10.0pt;font-family:Monospace"><o:p></o:p></span></p>
<p class="MsoNormal" style="text-autospace:none"><span style="font-size:10.0pt;font-family:Monospace"><o:p> </o:p></span></p>
<p class="MsoNormal" style="text-autospace:none"><span style="font-size:10.0pt;font-family:Monospace;color:black">
</span><b><span style="font-size:10.0pt;font-family:Monospace;color:#7F0055">return</span></b><span style="font-size:10.0pt;font-family:Monospace;color:black"> AddMatcher(</span><b><span style="font-size:10.0pt;font-family:Monospace;color:#7F0055">new</span></b><span style="font-size:10.0pt;font-family:Monospace;color:black">
</span><span style="font-size:10.0pt;font-family:Monospace;color:#005032">CheckIntegerMatcher</span><span style="font-size:10.0pt;font-family:Monospace;color:black">(II->getValue()));</span><span style="font-size:10.0pt;font-family:Monospace"><o:p></o:p></span></p>
<p class="MsoNormal" style="text-autospace:none"><span style="font-size:10.0pt;font-family:Monospace;color:black"> }</span><span style="font-size:10.0pt;font-family:Monospace"><o:p></o:p></span></p>
<p class="MsoNormal" style="margin-bottom:12.0pt">-------------------------------------------------------------------------------------------------<o:p></o:p></p>
<p class="MsoNormal" style="margin-bottom:12.0pt">This code seems to retrieve some Node definition based on a naming convention related to the “imm” string.<o:p></o:p></p>
<p class="MsoNormal" style="margin-bottom:12.0pt">Are such naming conventions quite common for TableGen target descition input file?<o:p></o:p></p>
<p class="MsoNormal" style="margin-bottom:12.0pt">Do I have to rename <span style="font-size:10.0pt;font-family:Monospace">
IMM16Operand into something like imm16Operand?<o:p></o:p></span></p>
<p class="MsoNormal" style="margin-bottom:12.0pt"><span style="font-size:10.0pt;font-family:Monospace"><o:p> </o:p></span></p>
<p class="MsoNormal" style="margin-bottom:12.0pt"><span style="font-size:10.0pt;font-family:Monospace">Thanks in advance. Dominique Torette.</span><o:p></o:p></p>
<p class="MsoNormal" style="margin-bottom:12.0pt"><br>
<span style="font-size:12.0pt;font-family:"Times New Roman","serif""><br>
<br>
<br>
</span><o:p></o:p></p>
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<p class="MsoNormal"><span style="font-size:12.0pt;font-family:"Times New Roman","serif""><img width="536" height="49" id="_x0000_i1025" src="http://www.spacebel.be/wp-content/uploads/2011/06/image-sign-sbp.jpg" alt="http://www.spacebel.be/wp-content/uploads/2011/06/image-sign-sbp.jpg"></span><span lang="FR-BE" style="font-size:12.0pt;font-family:"Times New Roman","serif""><o:p></o:p></span></p>
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<p class="MsoNormal" align="center" style="mso-margin-top-alt:auto;mso-margin-bottom-alt:auto;text-align:center">
<b><span lang="FR-BE" style="font-size:10.0pt">Dominique Torette</span></b><span lang="FR-BE" style="font-size:10.0pt">
<br>
System Architect<br>
Rue des Chasseurs Ardennais - Liège Science Park - B-4031 Angleur <br>
Tel: +32 (0) 4 361 81 11 - Fax: +32 (0) 4 361 81 20 <br>
</span><span style="font-size:10.0pt"><a href="http://www.spacebel.be/"><span lang="FR-BE" style="color:blue">www.spacebel.be</span></a></span><span lang="FR-BE" style="font-size:12.0pt;font-family:"Times New Roman","serif""><o:p></o:p></span></p>
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<p class="MsoNormal"><span lang="FR-BE"><o:p> </o:p></span></p>
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