Introduce addps/subps/mulps/divps for IA32/X64

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 d7b28d5bf127a21859faaa1d73016d8ea915afc8..057a558e28fbd277acf8054bca0c641bcc5537b1 100644
--- a/src/ia32/disasm-ia32.cc
+++ b/src/ia32/disasm-ia32.cc
@@ -1042,38 +1042,49 @@ int DisassemblerIA32::InstructionDecode(v8::internal::Vector<char> out_buffer,
                            NameOfXMMRegister(regop),
                            NameOfXMMRegister(rm));
             data++;
-          } else if (f0byte == 0x54) {
+          } else if (f0byte >= 0x53 && f0byte <= 0x5F) {
+            const char* const pseudo_op[] = {
+              "rcpps",
+              "andps",
+              "andnps",
+              "orps",
+              "xorps",
+              "addps",
+              "mulps",
+              "cvtps2pd",
+              "cvtdq2ps",
+              "subps",
+              "minps",
+              "divps",
+              "maxps",
+            };
+
             data += 2;
             int mod, regop, rm;
             get_modrm(*data, &mod, &regop, &rm);
-            AppendToBuffer("andps %s,%s",
-                           NameOfXMMRegister(regop),
-                           NameOfXMMRegister(rm));
-            data++;
-          } else if (f0byte == 0x56) {
+            AppendToBuffer("%s %s,",
+                           pseudo_op[f0byte - 0x53],
+                           NameOfXMMRegister(regop));
+            data += PrintRightXMMOperand(data);
+          } else if (f0byte == 0x50) {
             data += 2;
             int mod, regop, rm;
             get_modrm(*data, &mod, &regop, &rm);
-            AppendToBuffer("orps %s,%s",
-                           NameOfXMMRegister(regop),
+            AppendToBuffer("movmskps %s,%s",
+                           NameOfCPURegister(regop),
                            NameOfXMMRegister(rm));
             data++;
-          } else if (f0byte == 0x57) {
+          } else if (f0byte== 0xC6) {
+            // shufps xmm, xmm/m128, imm8
             data += 2;
             int mod, regop, rm;
             get_modrm(*data, &mod, &regop, &rm);
-            AppendToBuffer("xorps %s,%s",
-                           NameOfXMMRegister(regop),
-                           NameOfXMMRegister(rm));
-            data++;
-          } else if (f0byte == 0x50) {
+            int8_t imm8 = static_cast<int8_t>(data[1]);
+            AppendToBuffer("shufps %s,%s,%d",
+                            NameOfXMMRegister(rm),
+                            NameOfXMMRegister(regop),
+                            static_cast<int>(imm8));
             data += 2;
-            int mod, regop, rm;
-            get_modrm(*data, &mod, &regop, &rm);
-            AppendToBuffer("movmskps %s,%s",
-                           NameOfCPURegister(regop),
-                           NameOfXMMRegister(rm));
-            data++;
           } else if ((f0byte & 0xF0) == 0x80) {
             data += JumpConditional(data, branch_hint);
           } else if (f0byte == 0xBE || f0byte == 0xBF || f0byte == 0xB6 ||