Add support for comisd and cmov in IA-32 disassembler.

test/cctest/test-disasm-ia32.cc

Index: test/cctest/test-disasm-ia32.cc
===================================================================
--- test/cctest/test-disasm-ia32.cc	(revision 3027)
+++ test/cctest/test-disasm-ia32.cc	(working copy)
@@ -363,7 +363,31 @@
     __ divsd(xmm1, xmm0);
     __ movdbl(xmm1, Operand(ebx, ecx, times_4, 10000));
     __ movdbl(Operand(ebx, ecx, times_4, 10000), xmm1);
+    __ comisd(xmm0, xmm1);
   }
+
+  // cmov.
+  {
+    CHECK(CpuFeatures::IsSupported(CpuFeatures::CMOV));
+    CpuFeatures::Scope use_cmov(CpuFeatures::CMOV);
+    __ cmov(overflow, eax, Operand(eax, 0));
+    __ cmov(no_overflow, eax, Operand(eax, 1));
+    __ cmov(below, eax, Operand(eax, 2));
+    __ cmov(above_equal, eax, Operand(eax, 3));
+    __ cmov(equal, eax, Operand(ebx, 0));
+    __ cmov(not_equal, eax, Operand(ebx, 1));
+    __ cmov(below_equal, eax, Operand(ebx, 2));
+    __ cmov(above, eax, Operand(ebx, 3));
+    __ cmov(sign, eax, Operand(ecx, 0));
+    __ cmov(not_sign, eax, Operand(ecx, 1));
+    __ cmov(parity_even, eax, Operand(ecx, 2));
+    __ cmov(parity_odd, eax, Operand(ecx, 3));
+    __ cmov(less, eax, Operand(edx, 0));
+    __ cmov(greater_equal, eax, Operand(edx, 1));
+    __ cmov(less_equal, eax, Operand(edx, 2));
+    __ cmov(greater, eax, Operand(edx, 3));
+  }
+
   __ ret(0);
 
   CodeDesc desc;