<div dir="ltr">Test case?</div><div class="gmail_extra"><br><br><div class="gmail_quote">On Wed, Jan 15, 2014 at 11:57 PM, Craig Topper <span dir="ltr"><<a href="mailto:craig.topper@gmail.com" target="_blank">craig.topper@gmail.com</a>></span> wrote:<br>
<blockquote class="gmail_quote" style="margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex">Author: ctopper<br>
Date: Thu Jan 16 01:57:45 2014<br>
New Revision: 199365<br>
<br>
URL: <a href="http://llvm.org/viewvc/llvm-project?rev=199365&view=rev" target="_blank">http://llvm.org/viewvc/llvm-project?rev=199365&view=rev</a><br>
Log:<br>
Copy segment register when optimizing to MOV8ao8/MOV16ao16/MOV32ao32.<br>
<br>
Modified:<br>
    llvm/trunk/lib/Target/X86/X86MCInstLower.cpp<br>
<br>
Modified: llvm/trunk/lib/Target/X86/X86MCInstLower.cpp<br>
URL: <a href="http://llvm.org/viewvc/llvm-project/llvm/trunk/lib/Target/X86/X86MCInstLower.cpp?rev=199365&r1=199364&r2=199365&view=diff" target="_blank">http://llvm.org/viewvc/llvm-project/llvm/trunk/lib/Target/X86/X86MCInstLower.cpp?rev=199365&r1=199364&r2=199365&view=diff</a><br>

==============================================================================<br>
--- llvm/trunk/lib/Target/X86/X86MCInstLower.cpp (original)<br>
+++ llvm/trunk/lib/Target/X86/X86MCInstLower.cpp Thu Jan 16 01:57:45 2014<br>
@@ -323,15 +323,16 @@ static void SimplifyShortMoveForm(X86Asm<br>
   if (Absolute &&<br>
       (Inst.getOperand(AddrBase + 0).getReg() != 0 ||<br>
        Inst.getOperand(AddrBase + 2).getReg() != 0 ||<br>
-       Inst.getOperand(AddrBase + 4).getReg() != 0 ||<br>
        Inst.getOperand(AddrBase + 1).getImm() != 1))<br>
     return;<br>
<br>
   // If so, rewrite the instruction.<br>
   MCOperand Saved = Inst.getOperand(AddrOp);<br>
+  MCOperand Seg = Inst.getOperand(AddrBase + 4);<br>
   Inst = MCInst();<br>
   Inst.setOpcode(Opcode);<br>
   Inst.addOperand(Saved);<br>
+  Inst.addOperand(Seg);<br>
 }<br>
<br>
 static unsigned getRetOpcode(const X86Subtarget &Subtarget)<br>
<br>
<br>
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</blockquote></div><br></div>