[turbofan] Introduce optional Float64Min and Float64Max machine operators.

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 1126 matching lines @@
   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);
 
   void punpckldq(XMMRegister dst, XMMRegister src);
   void punpckhdq(XMMRegister dst, XMMRegister src);
 
+  void maxsd(XMMRegister dst, XMMRegister src);
+  void maxsd(XMMRegister dst, const Operand& src);
+  void minsd(XMMRegister dst, XMMRegister src);
+  void minsd(XMMRegister dst, const Operand& src);
+
   // SSE 4.1 instruction
   void extractps(Register dst, XMMRegister src, byte imm8);
 
   void pextrd(Register dst, XMMRegister src, int8_t imm8);
 
   void pinsrd(XMMRegister dst, Register src, int8_t imm8);
   void pinsrd(XMMRegister dst, const Operand& src, int8_t imm8);
 
   void roundsd(XMMRegister dst, XMMRegister src, RoundingMode mode);
 
@@ skipping 165 matching lines @@
   }
   void vmulsd(XMMRegister dst, XMMRegister src1, const Operand& src2) {
     vsd(0x59, dst, src1, src2);
   }
   void vdivsd(XMMRegister dst, XMMRegister src1, XMMRegister src2) {
     vsd(0x5e, dst, src1, src2);
   }
   void vdivsd(XMMRegister dst, XMMRegister src1, const Operand& src2) {
     vsd(0x5e, dst, src1, src2);
   }
+  void vmaxsd(XMMRegister dst, XMMRegister src1, XMMRegister src2) {
+    vsd(0x5f, dst, src1, src2);
+  }
+  void vmaxsd(XMMRegister dst, XMMRegister src1, const Operand& src2) {
+    vsd(0x5f, dst, src1, src2);
+  }
+  void vminsd(XMMRegister dst, XMMRegister src1, XMMRegister src2) {
+    vsd(0x5d, dst, src1, src2);
+  }
+  void vminsd(XMMRegister dst, XMMRegister src1, const Operand& src2) {
+    vsd(0x5d, dst, src1, src2);
+  }
   void vsd(byte op, XMMRegister dst, XMMRegister src1, XMMRegister src2);
   void vsd(byte op, XMMRegister dst, XMMRegister src1, const Operand& src2);
 
   // Debugging
   void Print();
 
   // Check the code size generated from label to here.
   int SizeOfCodeGeneratedSince(Label* label) {
     return pc_offset() - label->pos();
   }
@@ skipping 522 matching lines @@
  private:
   Assembler* assembler_;
 #ifdef DEBUG
   int space_before_;
 #endif
 };
 
 } }  // namespace v8::internal
 
 #endif  // V8_X64_ASSEMBLER_X64_H_