Revert of [turbofan] Implement rounding of floats on x64 and ia32 without sse4.1.

src/x64/macro-assembler-x64.h

 // 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.
 
 #ifndef V8_X64_MACRO_ASSEMBLER_X64_H_
 #define V8_X64_MACRO_ASSEMBLER_X64_H_
 
 #include "src/assembler.h"
 #include "src/bailout-reason.h"
 #include "src/base/flags.h"
@@ skipping 813 matching lines @@
   void Cvtqui2sd(XMMRegister dst, Register src, Register tmp);
 
   void Cvtsd2si(Register dst, XMMRegister src);
 
   void Cvttss2si(Register dst, XMMRegister src);
   void Cvttss2si(Register dst, const Operand& src);
   void Cvttsd2si(Register dst, XMMRegister src);
   void Cvttsd2si(Register dst, const Operand& src);
   void Cvttss2siq(Register dst, XMMRegister src);
   void Cvttss2siq(Register dst, const Operand& src);
-  void Cvtss2siq(Register dst, XMMRegister src);
-  void Cvtss2siq(Register dst, const Operand& src);
   void Cvttsd2siq(Register dst, XMMRegister src);
   void Cvttsd2siq(Register dst, const Operand& src);
-  void Cvtsd2siq(Register dst, XMMRegister src);
-  void Cvtsd2siq(Register dst, const Operand& src);
 
   // Move if the registers are not identical.
   void Move(Register target, Register source);
 
   // TestBit and Load SharedFunctionInfo special field.
   void TestBitSharedFunctionInfoSpecialField(Register base,
                                              int offset,
                                              int bit_index);
   void LoadSharedFunctionInfoSpecialField(Register dst,
                                           Register base,
@@ skipping 114 matching lines @@
   void Movd(XMMRegister dst, const Operand& src);
   void Movd(Register dst, XMMRegister src);
   void Movq(XMMRegister dst, Register src);
   void Movq(Register dst, XMMRegister src);
 
   void Movaps(XMMRegister dst, XMMRegister src);
   void Movapd(XMMRegister dst, XMMRegister src);
   void Movmskpd(Register dst, XMMRegister src);
 
   void Roundss(XMMRegister dst, XMMRegister src, RoundingMode mode);
-  void Roundss(XMMRegister dst, XMMRegister src, Register tmp,
-               RoundingMode mode);
   void Roundsd(XMMRegister dst, XMMRegister src, RoundingMode mode);
-  void Roundsd(XMMRegister dst, XMMRegister src, Register tmp,
-               RoundingMode mode);
   void Sqrtsd(XMMRegister dst, XMMRegister src);
   void Sqrtsd(XMMRegister dst, const Operand& src);
 
   void Ucomiss(XMMRegister src1, XMMRegister src2);
   void Ucomiss(XMMRegister src1, const Operand& src2);
   void Ucomisd(XMMRegister src1, XMMRegister src2);
   void Ucomisd(XMMRegister src1, const Operand& src2);
 
   // Control Flow
   void Jump(Address destination, RelocInfo::Mode rmode);
@@ skipping 763 matching lines @@
   }                                                                          \
   masm->
 #else
 #define ACCESS_MASM(masm) masm->
 #endif
 
 }  // namespace internal
 }  // namespace v8
 
 #endif  // V8_X64_MACRO_ASSEMBLER_X64_H_