[turbofan] Introduce optional Float64Min and Float64Max machine operators.

src/compiler/x64/code-generator-x64.cc

 // Copyright 2013 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.
 
 #include "src/compiler/code-generator.h"
 
 #include "src/compiler/code-generator-impl.h"
 #include "src/compiler/gap-resolver.h"
 #include "src/compiler/node-matchers.h"
 #include "src/scopes.h"
@@ skipping 723 matching lines @@
         __ popfq();
       }
       __ j(parity_even, &mod_loop);
       // Move output to stack and clean up.
       __ fstp(1);
       __ fstp_d(Operand(rsp, 0));
       __ movsd(i.OutputDoubleRegister(), Operand(rsp, 0));
       __ addq(rsp, Immediate(kDoubleSize));
       break;
     }
+    case kSSEFloat64Max:
+      ASSEMBLE_DOUBLE_BINOP(maxsd);
+      break;
+    case kSSEFloat64Min:
+      ASSEMBLE_DOUBLE_BINOP(minsd);
+      break;
     case kSSEFloat64Sqrt:
       if (instr->InputAt(0)->IsDoubleRegister()) {
         __ sqrtsd(i.OutputDoubleRegister(), i.InputDoubleRegister(0));
       } else {
         __ sqrtsd(i.OutputDoubleRegister(), i.InputOperand(0));
       }
       break;
     case kSSEFloat64Round: {
       CpuFeatureScope sse_scope(masm(), SSE4_1);
       RoundingMode const mode =
@@ skipping 86 matching lines @@
       break;
     case kAVXFloat64Sub:
       ASSEMBLE_AVX_DOUBLE_BINOP(vsubsd);
       break;
     case kAVXFloat64Mul:
       ASSEMBLE_AVX_DOUBLE_BINOP(vmulsd);
       break;
     case kAVXFloat64Div:
       ASSEMBLE_AVX_DOUBLE_BINOP(vdivsd);
       break;
+    case kAVXFloat64Max:
+      ASSEMBLE_AVX_DOUBLE_BINOP(vmaxsd);
+      break;
+    case kAVXFloat64Min:
+      ASSEMBLE_AVX_DOUBLE_BINOP(vminsd);
+      break;
     case kX64Movsxbl:
       ASSEMBLE_MOVX(movsxbl);
       __ AssertZeroExtended(i.OutputRegister());
       break;
     case kX64Movzxbl:
       ASSEMBLE_MOVX(movzxbl);
       __ AssertZeroExtended(i.OutputRegister());
       break;
     case kX64Movb: {
       size_t index = 0;
@@ skipping 621 matching lines @@
     }
   }
   MarkLazyDeoptSite();
 }
 
 #undef __
 
 }  // namespace internal
 }  // namespace compiler
 }  // namespace v8