[x64] Fix the assembler and the disassembler.

src/x64/assembler-x64.cc

 // Copyright 2012 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 "src/x64/assembler-x64.h"
 
 #include <cstring>
 
 #if V8_TARGET_ARCH_X64
 
@@ skipping 3772 matching lines @@
 
 void Assembler::punpckldq(XMMRegister dst, XMMRegister src) {
   EnsureSpace ensure_space(this);
   emit(0x66);
   emit_optional_rex_32(dst, src);
   emit(0x0F);
   emit(0x62);
   emit_sse_operand(dst, src);
 }
 
+void Assembler::punpckldq(XMMRegister dst, const Operand& src) {
+  EnsureSpace ensure_space(this);
+  emit(0x66);
+  emit_optional_rex_32(dst, src);
+  emit(0x0F);
+  emit(0x62);
+  emit_sse_operand(dst, src);
+}
 
 void Assembler::punpckhdq(XMMRegister dst, XMMRegister src) {
   EnsureSpace ensure_space(this);
   emit(0x66);
   emit_optional_rex_32(dst, src);
   emit(0x0F);
   emit(0x6A);
   emit_sse_operand(dst, src);
 }
 
@@ skipping 624 matching lines @@
   emit(0x38);
   emit(0x40);
   emit_sse_operand(dst, src);
 }
 
 void Assembler::pmulld(XMMRegister dst, const Operand& src) {
   EnsureSpace ensure_space(this);
   emit(0x66);
   emit_optional_rex_32(dst, src);
   emit(0x0F);
-  emit(0xF4);
+  emit(0x38);
+  emit(0x40);
   emit_sse_operand(dst, src);
 }
 
 void Assembler::pmuludq(XMMRegister dst, XMMRegister src) {
   EnsureSpace ensure_space(this);
   emit(0x66);
   emit_optional_rex_32(dst, src);
   emit(0x0F);
   emit(0xF4);
   emit_sse_operand(dst, src);
 }
 
 void Assembler::pmuludq(XMMRegister dst, const Operand& src) {
   EnsureSpace ensure_space(this);
   emit(0x66);
   emit_optional_rex_32(dst, src);
   emit(0x0F);
   emit(0xF4);
   emit_sse_operand(dst, src);
 }
 
-void Assembler::punpackldq(XMMRegister dst, XMMRegister src) {
-  EnsureSpace ensure_space(this);
-  emit(0x66);
-  emit_optional_rex_32(dst, src);
-  emit(0x0F);
-  emit(0x62);
-  emit_sse_operand(dst, src);
-}
-
-void Assembler::punpackldq(XMMRegister dst, const Operand& src) {
-  EnsureSpace ensure_space(this);
-  emit(0x66);
-  emit_optional_rex_32(dst, src);
-  emit(0x0F);
-  emit(0x62);
-  emit_sse_operand(dst, src);
-}
-
 void Assembler::psrldq(XMMRegister dst, uint8_t shift) {
   EnsureSpace ensure_space(this);
   emit(0x66);
   emit_optional_rex_32(dst);
   emit(0x0F);
   emit(0x73);
   emit_sse_operand(dst);
   emit(shift);
 }
 
@@ skipping 128 matching lines @@
 
 bool RelocInfo::IsInConstantPool() {
   return false;
 }
 
 
 }  // namespace internal
 }  // namespace v8
 
 #endif  // V8_TARGET_ARCH_X64