Support external arrays in Crankshaft

src/ia32/disasm-ia32.cc

Index: src/ia32/disasm-ia32.cc
diff --git a/src/ia32/disasm-ia32.cc b/src/ia32/disasm-ia32.cc
index cc2f8495f7810810b58baa10a50100dce4f25c8d..d1c869a2c2352295b30c1d60515b45a087b90e6c 100644
--- a/src/ia32/disasm-ia32.cc
+++ b/src/ia32/disasm-ia32.cc
@@ -1373,6 +1373,12 @@ int DisassemblerIA32::InstructionDecode(v8::internal::Vector<char> out_buffer,
             get_modrm(*data, &mod, &regop, &rm);
             AppendToBuffer("movsd %s,", NameOfXMMRegister(regop));
             data += PrintRightXMMOperand(data);
+          } else  if (b2 == 0x5A) {
+            data += 3;
+            int mod, regop, rm;
+            get_modrm(*data, &mod, &regop, &rm);
+            AppendToBuffer("cvtsd2ss %s,", NameOfXMMRegister(regop));
+            data += PrintRightXMMOperand(data);
           } else {
             const char* mnem = "?";
             switch (b2) {
@@ -1422,25 +1428,39 @@ int DisassemblerIA32::InstructionDecode(v8::internal::Vector<char> out_buffer,
 
       case 0xF3:
         if (*(data+1) == 0x0F) {
-          if (*(data+2) == 0x2C) {
+          byte b2 = *(data+2);
+          if (b2 == 0x11) {
+            AppendToBuffer("movss ");
+            data += 3;
+            int mod, regop, rm;
+            get_modrm(*data, &mod, &regop, &rm);
+            data += PrintRightXMMOperand(data);
+            AppendToBuffer(",%s", NameOfXMMRegister(regop));
+          } else if (b2 == 0x10) {
+            data += 3;
+            int mod, regop, rm;
+            get_modrm(*data, &mod, &regop, &rm);
+            AppendToBuffer("movss %s,", NameOfXMMRegister(regop));
+            data += PrintRightXMMOperand(data);
+          } else if (b2 == 0x2C) {
             data += 3;
             int mod, regop, rm;
             get_modrm(*data, &mod, &regop, &rm);
             AppendToBuffer("cvttss2si %s,", NameOfCPURegister(regop));
             data += PrintRightXMMOperand(data);
-          } else  if (*(data+2) == 0x5A) {
+          } else if (b2 == 0x5A) {
             data += 3;
             int mod, regop, rm;
             get_modrm(*data, &mod, &regop, &rm);
             AppendToBuffer("cvtss2sd %s,", NameOfXMMRegister(regop));
             data += PrintRightXMMOperand(data);
-          } else  if (*(data+2) == 0x6F) {
+          } else  if (b2 == 0x6F) {
             data += 3;
             int mod, regop, rm;
             get_modrm(*data, &mod, &regop, &rm);
             AppendToBuffer("movdqu %s,", NameOfXMMRegister(regop));
             data += PrintRightXMMOperand(data);
-          } else  if (*(data+2) == 0x7F) {
+          } else  if (b2 == 0x7F) {
             AppendToBuffer("movdqu ");
             data += 3;
             int mod, regop, rm;