[ia32] Supplement shift instructions for SIMD

src/ia32/disasm-ia32.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_IA32
 
@@ skipping 711 matching lines @@
 
 // Returns number of bytes used, including *data.
 int DisassemblerIA32::CMov(byte* data) {
   DCHECK_EQ(0x0F, *data);
   byte cond = *(data + 1) & 0x0F;
   const char* mnem = conditional_move_mnem[cond];
   int op_size = PrintOperands(mnem, REG_OPER_OP_ORDER, data + 2);
   return 2 + op_size;  // includes 0x0F
 }
 
+const char* sf_str[4] = {"", "rl", "ra", "ll"};
 
 int DisassemblerIA32::AVXInstruction(byte* data) {
   byte opcode = *data;
   byte* current = data + 1;
   if (vex_66() && vex_0f38()) {
     int mod, regop, rm, vvvv = vex_vreg();
     get_modrm(*current, &mod, &regop, &rm);
     switch (opcode) {
       case 0x99:
         AppendToBuffer("vfmadd132s%c %s,%s,", float_size_code(),
@@ skipping 265 matching lines @@
       case 0x54:
         AppendToBuffer("vandpd %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 0x71:
+        AppendToBuffer("vps%sw %s,%s", sf_str[regop / 2],
+                       NameOfXMMRegister(vvvv), NameOfXMMRegister(rm));
+        current++;
+        AppendToBuffer(",%u", *current++);
+        break;
+      case 0x72:
+        AppendToBuffer("vps%sd %s,%s", sf_str[regop / 2],
+                       NameOfXMMRegister(vvvv), NameOfXMMRegister(rm));
+        current++;
+        AppendToBuffer(",%u", *current++);
+        break;
 #define DECLARE_SSE_AVX_DIS_CASE(instruction, notUsed1, notUsed2, opcode) \
   case 0x##opcode: {                                                      \
     AppendToBuffer("v" #instruction " %s,%s,", NameOfXMMRegister(regop),  \
                    NameOfXMMRegister(vvvv));                              \
     current += PrintRightXMMOperand(current);                             \
     break;                                                                \
   }
 
         SSE2_INSTRUCTION_LIST(DECLARE_SSE_AVX_DIS_CASE)
 #undef DECLARE_SSE_AVX_DIS_CASE
@@ skipping 827 matching lines @@
             data++;
             AppendToBuffer("nop");  // 2 byte nop.
           } else if (*data == 0xF3) {
             data++;
             int mod, regop, rm;
             get_modrm(*data, &mod, &regop, &rm);
             AppendToBuffer("psllq %s,%s",
                            NameOfXMMRegister(regop),
                            NameOfXMMRegister(rm));
             data++;
+          } else if (*data == 0x71) {
+            data++;
+            int mod, regop, rm;
+            get_modrm(*data, &mod, &regop, &rm);
+            int8_t imm8 = static_cast<int8_t>(data[1]);
+            AppendToBuffer("ps%sw %s,%d", sf_str[regop / 2],
+                           NameOfXMMRegister(rm), static_cast<int>(imm8));
+            data += 2;
           } else if (*data == 0x72) {
             data++;
             int mod, regop, rm;
             get_modrm(*data, &mod, &regop, &rm);
             int8_t imm8 = static_cast<int8_t>(data[1]);
-            DCHECK(regop == esi || regop == edx);
-            AppendToBuffer("%s %s,%d", (regop == esi) ? "pslld" : "psrld",
+            AppendToBuffer("ps%sd %s,%d", sf_str[regop / 2],
                            NameOfXMMRegister(rm), static_cast<int>(imm8));
             data += 2;
           } else if (*data == 0x73) {
             data++;
             int mod, regop, rm;
             get_modrm(*data, &mod, &regop, &rm);
             int8_t imm8 = static_cast<int8_t>(data[1]);
             DCHECK(regop == esi || regop == edx);
-            AppendToBuffer("%s %s,%d",
-                           (regop == esi) ? "psllq" : "psrlq",
-                           NameOfXMMRegister(rm),
-                           static_cast<int>(imm8));
+            AppendToBuffer("ps%sq %s,%d", sf_str[regop / 2],
+                           NameOfXMMRegister(rm), static_cast<int>(imm8));
             data += 2;
           } else if (*data == 0xD3) {
             data++;
             int mod, regop, rm;
             get_modrm(*data, &mod, &regop, &rm);
             AppendToBuffer("psrlq %s,%s",
                            NameOfXMMRegister(regop),
                            NameOfXMMRegister(rm));
             data++;
           } else if (*data == 0x7F) {
@@ skipping 450 matching lines @@
       fprintf(f, "  ");
     }
     fprintf(f, "  %s\n", buffer.start());
   }
 }
 
 
 }  // namespace disasm
 
 #endif  // V8_TARGET_ARCH_IA32