X87: enable the X87 turbofan support.

src/compiler/instruction-codes.h

 // Copyright 2014 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.
 
 #ifndef V8_COMPILER_INSTRUCTION_CODES_H_
 #define V8_COMPILER_INSTRUCTION_CODES_H_
 
 #include <iosfwd>
 
 #if V8_TARGET_ARCH_ARM
 #include "src/compiler/arm/instruction-codes-arm.h"
 #elif V8_TARGET_ARCH_ARM64
 #include "src/compiler/arm64/instruction-codes-arm64.h"
 #elif V8_TARGET_ARCH_IA32
 #include "src/compiler/ia32/instruction-codes-ia32.h"
 #elif V8_TARGET_ARCH_MIPS
 #include "src/compiler/mips/instruction-codes-mips.h"
 #elif V8_TARGET_ARCH_MIPS64
 #include "src/compiler/mips64/instruction-codes-mips64.h"
 #elif V8_TARGET_ARCH_X64
 #include "src/compiler/x64/instruction-codes-x64.h"
 #elif V8_TARGET_ARCH_PPC
 #include "src/compiler/ppc/instruction-codes-ppc.h"
+#elif V8_TARGET_ARCH_X87
+#include "src/compiler/x87/instruction-codes-x87.h"
 #else
 #define TARGET_ARCH_OPCODE_LIST(V)
 #define TARGET_ADDRESSING_MODE_LIST(V)
 #endif
 #include "src/utils.h"
 
 namespace v8 {
 namespace internal {
 namespace compiler {
 
@@ skipping 100 matching lines @@
 typedef BitField<AddressingMode, 8, 5> AddressingModeField;
 typedef BitField<FlagsMode, 13, 2> FlagsModeField;
 typedef BitField<FlagsCondition, 15, 4> FlagsConditionField;
 typedef BitField<int, 19, 13> MiscField;
 
 }  // namespace compiler
 }  // namespace internal
 }  // namespace v8
 
 #endif  // V8_COMPILER_INSTRUCTION_CODES_H_