Extends testb and cmpb/cmpw instruction support in the ia32 assembler.

src/ia32/assembler-ia32.h

 // Copyright (c) 1994-2006 Sun Microsystems Inc.
 // All Rights Reserved.
 //
 // Redistribution and use in source and binary forms, with or without
 // modification, are permitted provided that the following conditions are
 // met:
 //
 // - Redistributions of source code must retain the above copyright notice,
 // this list of conditions and the following disclaimer.
 //
@@ skipping 263 matching lines @@
   inline explicit Immediate(Address x, RelocInfo::Mode rmode);
 
   static Immediate CodeRelativeOffset(Label* label) {
     return Immediate(label);
   }
 
   bool is_zero() const { return x_ == 0 && RelocInfo::IsNone(rmode_); }
   bool is_int8() const {
     return -128 <= x_ && x_ < 128 && RelocInfo::IsNone(rmode_);
   }
+  bool is_uint8() const {
+    return v8::internal::is_uint8(x_) && RelocInfo::IsNone(rmode_);
+  }
   bool is_int16() const {
     return -32768 <= x_ && x_ < 32768 && RelocInfo::IsNone(rmode_);
   }
 
  private:
   inline explicit Immediate(Label* value);
 
   int x_;
   RelocInfo::Mode rmode_;
 
@@ skipping 366 matching lines @@
   void add(Register dst, const Immediate& imm) { add(Operand(dst), imm); }
   void add(const Operand& dst, const Immediate& x);
 
   void and_(Register dst, int32_t imm32);
   void and_(Register dst, const Immediate& x);
   void and_(Register dst, Register src) { and_(dst, Operand(src)); }
   void and_(Register dst, const Operand& src);
   void and_(const Operand& dst, Register src);
   void and_(const Operand& dst, const Immediate& x);
 
-  void cmpb(Register reg, int8_t imm8) { cmpb(Operand(reg), imm8); }
-  void cmpb(const Operand& op, int8_t imm8);
+  void cmpb(Register reg, Immediate imm8) { cmpb(Operand(reg), imm8); }
+  void cmpb(const Operand& op, Immediate imm8);
   void cmpb(Register reg, const Operand& op);
   void cmpb(const Operand& op, Register reg);
+  void cmpb(Register dst, Register src) { cmpb(Operand(dst), src); }
   void cmpb_al(const Operand& op);
   void cmpw_ax(const Operand& op);
-  void cmpw(const Operand& op, Immediate imm16);
+  void cmpw(const Operand& dst, Immediate src);
+  void cmpw(Register dst, Immediate src) { cmpw(Operand(dst), src); }
+  void cmpw(Register dst, const Operand& src);
+  void cmpw(Register dst, Register src) { cmpw(Operand(dst), src); }
+  void cmpw(const Operand& dst, Register src);
   void cmp(Register reg, int32_t imm32);
   void cmp(Register reg, Handle<Object> handle);
   void cmp(Register reg0, Register reg1) { cmp(reg0, Operand(reg1)); }
   void cmp(Register reg, const Operand& op);
   void cmp(Register reg, const Immediate& imm) { cmp(Operand(reg), imm); }
   void cmp(const Operand& op, Register reg);
   void cmp(const Operand& op, const Immediate& imm);
   void cmp(const Operand& op, Handle<Object> handle);
 
   void dec_b(Register dst);
@@ skipping 71 matching lines @@
   void sub(const Operand& dst, const Immediate& x);
   void sub(Register dst, Register src) { sub(dst, Operand(src)); }
   void sub(Register dst, const Operand& src);
   void sub(const Operand& dst, Register src);
 
   void test(Register reg, const Immediate& imm);
   void test(Register reg0, Register reg1) { test(reg0, Operand(reg1)); }
   void test(Register reg, const Operand& op);
   void test_b(Register reg, const Operand& op);
   void test(const Operand& op, const Immediate& imm);
-  void test_b(Register reg, uint8_t imm8);
-  void test_b(const Operand& op, uint8_t imm8);
+  void test_b(Register reg, Immediate imm8);
+  void test_b(const Operand& op, Immediate imm8);
 
   void xor_(Register dst, int32_t imm32);
   void xor_(Register dst, Register src) { xor_(dst, Operand(src)); }
   void xor_(Register dst, const Operand& src);
   void xor_(const Operand& dst, Register src);
   void xor_(Register dst, const Immediate& imm) { xor_(Operand(dst), imm); }
   void xor_(const Operand& dst, const Immediate& x);
 
   // Bit operations.
   void bt(const Operand& dst, Register src);
@@ skipping 697 matching lines @@
   void GrowBuffer();
   inline void emit(uint32_t x);
   inline void emit(Handle<Object> handle);
   inline void emit(uint32_t x,
                    RelocInfo::Mode rmode,
                    TypeFeedbackId id = TypeFeedbackId::None());
   inline void emit(Handle<Code> code,
                    RelocInfo::Mode rmode,
                    TypeFeedbackId id = TypeFeedbackId::None());
   inline void emit(const Immediate& x);
+  inline void emit_b(Immediate x);
   inline void emit_w(const Immediate& x);
   inline void emit_q(uint64_t x);
 
   // Emit the code-object-relative offset of the label's position
   inline void emit_code_relative_offset(Label* label);
 
   // instruction generation
   void emit_arith_b(int op1, int op2, Register dst, int imm8);
 
   // Emit a basic arithmetic instruction (i.e. first byte of the family is 0x81)
@@ skipping 76 matching lines @@
   Assembler* assembler_;
 #ifdef DEBUG
   int space_before_;
 #endif
 };
 
 }  // namespace internal
 }  // namespace v8
 
 #endif  // V8_IA32_ASSEMBLER_IA32_H_