[x64] Make MathMinMax use AVX instructions when available.

src/x64/disasm-x64.cc

 // Copyright 2011 the V8 project authors. All rights reserved.
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
 #include <assert.h>
 #include <stdarg.h>
 #include <stdio.h>
 
 #if V8_TARGET_ARCH_X64
 
@@ skipping 1222 matching lines @@
         break;
       case 0x50:
         AppendToBuffer("vmovmskpd %s,", NameOfCPURegister(regop));
         current += PrintRightXMMOperand(current);
         break;
       case 0x54:
         AppendToBuffer("vandpd %s,%s,", NameOfXMMRegister(regop),
                        NameOfXMMRegister(vvvv));
         current += PrintRightXMMOperand(current);
         break;
+      case 0x56:
+        AppendToBuffer("vorpd %s,%s,", NameOfXMMRegister(regop),
+                       NameOfXMMRegister(vvvv));
+        current += PrintRightXMMOperand(current);
+        break;
       case 0x57:
         AppendToBuffer("vxorpd %s,%s,", NameOfXMMRegister(regop),
                        NameOfXMMRegister(vvvv));
         current += PrintRightXMMOperand(current);
         break;
       case 0x6e:
         AppendToBuffer("vmov%c %s,", vex_w() ? 'q' : 'd',
                        NameOfXMMRegister(regop));
         current += PrintRightOperand(current);
         break;
@@ skipping 1196 matching lines @@
     for (int i = 6 - static_cast<int>(pc - prev_pc); i >= 0; i--) {
       fprintf(f, "  ");
     }
     fprintf(f, "  %s\n", buffer.start());
   }
 }
 
 }  // namespace disasm
 
 #endif  // V8_TARGET_ARCH_X64