[turbofan] IA: TruncateFloat64ToFloat32 supports mem operand

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/compiler/node-properties-inl.h"
@@ skipping 390 matching lines @@
       if (instr->InputAt(0)->IsDoubleRegister()) {
         __ sqrtsd(i.OutputDoubleRegister(), i.InputDoubleRegister(0));
       } else {
         __ sqrtsd(i.OutputDoubleRegister(), i.InputOperand(0));
       }
       break;
     case kSSECvtss2sd:
       __ cvtss2sd(i.OutputDoubleRegister(), i.InputDoubleRegister(0));
       break;
     case kSSECvtsd2ss:
-      __ cvtsd2ss(i.OutputDoubleRegister(), i.InputDoubleRegister(0));
+      if (instr->InputAt(0)->IsDoubleRegister()) {
+        __ cvtsd2ss(i.OutputDoubleRegister(), i.InputDoubleRegister(0));
+      } else {
+        __ cvtsd2ss(i.OutputDoubleRegister(), i.InputOperand(0));
+      }
       break;
     case kSSEFloat64ToInt32:
       if (instr->InputAt(0)->IsDoubleRegister()) {
         __ cvttsd2si(i.OutputRegister(), i.InputDoubleRegister(0));
       } else {
         __ cvttsd2si(i.OutputRegister(), i.InputOperand(0));
       }
       break;
     case kSSEFloat64ToUint32:
       if (instr->InputAt(0)->IsDoubleRegister()) {
@@ skipping 567 matching lines @@
     }
   }
   MarkLazyDeoptSite();
 }
 
 #undef __
 
 }  // namespace internal
 }  // namespace compiler
 }  // namespace v8