<p dir="ltr">Test case?</p>
<div class="gmail_quote">On Feb 21, 2015 1:32 PM, "Matt Arsenault" <<a href="mailto:Matthew.Arsenault@amd.com">Matthew.Arsenault@amd.com</a>> wrote:<br type="attribution"><blockquote class="gmail_quote" style="margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex">Author: arsenm<br>
Date: Sat Feb 21 15:29:04 2015<br>
New Revision: 230147<br>
<br>
URL: <a href="http://llvm.org/viewvc/llvm-project?rev=230147&view=rev" target="_blank">http://llvm.org/viewvc/llvm-project?rev=230147&view=rev</a><br>
Log:<br>
R600/SI: Don't crash when getting immediate operand size<br>
<br>
Modified:<br>
    llvm/trunk/lib/Target/R600/SIInstrInfo.h<br>
<br>
Modified: llvm/trunk/lib/Target/R600/SIInstrInfo.h<br>
URL: <a href="http://llvm.org/viewvc/llvm-project/llvm/trunk/lib/Target/R600/SIInstrInfo.h?rev=230147&r1=230146&r2=230147&view=diff" target="_blank">http://llvm.org/viewvc/llvm-project/llvm/trunk/lib/Target/R600/SIInstrInfo.h?rev=230147&r1=230146&r2=230147&view=diff</a><br>
==============================================================================<br>
--- llvm/trunk/lib/Target/R600/SIInstrInfo.h (original)<br>
+++ llvm/trunk/lib/Target/R600/SIInstrInfo.h Sat Feb 21 15:29:04 2015<br>
@@ -254,6 +254,13 @@ public:<br>
   // instruction opcode.<br>
   unsigned getOpSize(uint16_t Opcode, unsigned OpNo) const {<br>
     const MCOperandInfo &OpInfo = get(Opcode).OpInfo[OpNo];<br>
+<br>
+    if (OpInfo.RegClass == -1) {<br>
+      // If this is an immediate operand, this must be a 32-bit literal.<br>
+      assert(OpInfo.OperandType == MCOI::OPERAND_IMMEDIATE);<br>
+      return 4;<br>
+    }<br>
+<br>
     return RI.getRegClass(OpInfo.RegClass)->getSize();<br>
   }<br>
<br>
<br>
<br>
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</blockquote></div>