[x64] simply tweak materialization of float/double constants

src/x64/assembler-x64.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 1043 matching lines @@
 
   void movdqa(const Operand& dst, XMMRegister src);
   void movdqa(XMMRegister dst, const Operand& src);
 
   void movdqu(const Operand& dst, XMMRegister src);
   void movdqu(XMMRegister dst, const Operand& src);
 
   void movapd(XMMRegister dst, XMMRegister src);
 
   void psllq(XMMRegister reg, byte imm8);
+  void psrlq(XMMRegister reg, byte imm8);
+  void pslld(XMMRegister reg, byte imm8);
+  void psrld(XMMRegister reg, byte imm8);
 
   void cvttsd2si(Register dst, const Operand& src);
   void cvttsd2si(Register dst, XMMRegister src);
   void cvttsd2siq(Register dst, XMMRegister src);
   void cvttsd2siq(Register dst, const Operand& src);
 
   void cvtlsi2sd(XMMRegister dst, const Operand& src);
   void cvtlsi2sd(XMMRegister dst, Register src);
   void cvtqsi2sd(XMMRegister dst, const Operand& src);
   void cvtqsi2sd(XMMRegister dst, Register src);
@@ skipping 16 matching lines @@
 
   void andpd(XMMRegister dst, XMMRegister src);
   void orpd(XMMRegister dst, XMMRegister src);
   void xorpd(XMMRegister dst, XMMRegister src);
   void sqrtsd(XMMRegister dst, XMMRegister src);
   void sqrtsd(XMMRegister dst, const Operand& src);
 
   void ucomisd(XMMRegister dst, XMMRegister src);
   void ucomisd(XMMRegister dst, const Operand& src);
   void cmpltsd(XMMRegister dst, XMMRegister src);
+  void pcmpeqd(XMMRegister dst, XMMRegister src);
 
   void movmskpd(Register dst, XMMRegister src);
 
   // SSE 4.1 instruction
   void extractps(Register dst, XMMRegister src, byte imm8);
 
   enum RoundingMode {
     kRoundToNearest = 0x0,
     kRoundDown      = 0x1,
     kRoundUp        = 0x2,
@@ skipping 154 matching lines @@
   // one of the registers is an XMM registers.
   inline void emit_optional_rex_32(Register reg, XMMRegister base);
 
   // As for emit_optional_rex_32(Register, const Operand&), except that
   // the register is an XMM register.
   inline void emit_optional_rex_32(XMMRegister reg, const Operand& op);
 
   // Optionally do as emit_rex_32(Register) if the register number has
   // the high bit set.
   inline void emit_optional_rex_32(Register rm_reg);
+  inline void emit_optional_rex_32(XMMRegister rm_reg);
 
   // Optionally do as emit_rex_32(const Operand&) if the operand register
   // numbers have a high bit set.
   inline void emit_optional_rex_32(const Operand& op);
 
   void emit_rex(int size) {
     if (size == kInt64Size) {
       emit_rex_64();
     } else {
       DCHECK(size == kInt32Size);
@@ skipping 329 matching lines @@
  private:
   Assembler* assembler_;
 #ifdef DEBUG
   int space_before_;
 #endif
 };
 
 } }  // namespace v8::internal
 
 #endif  // V8_X64_ASSEMBLER_X64_H_