[turbofan] Support for %_DoubleHi, %_DoubleLo and %_ConstructDouble.

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

 // Copyright 2014 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/arm/macro-assembler-arm.h"
 #include "src/compiler/code-generator-impl.h"
 #include "src/compiler/gap-resolver.h"
 #include "src/compiler/node-matchers.h"
@@ skipping 599 matching lines @@
       DCHECK_EQ(LeaveCC, i.OutputSBit());
       break;
     }
     case kArmVcvtU32F64: {
       SwVfpRegister scratch = kScratchDoubleReg.low();
       __ vcvt_u32_f64(scratch, i.InputFloat64Register(0));
       __ vmov(i.OutputRegister(), scratch);
       DCHECK_EQ(LeaveCC, i.OutputSBit());
       break;
     }
+    case kArmVmovLowU32F64:
+      __ VmovLow(i.OutputRegister(), i.InputFloat64Register(0));
+      DCHECK_EQ(LeaveCC, i.OutputSBit());
+      break;
+    case kArmVmovLowF64U32:
+      __ VmovLow(i.OutputFloat64Register(), i.InputRegister(1));
+      DCHECK_EQ(LeaveCC, i.OutputSBit());
+      break;
+    case kArmVmovHighU32F64:
+      __ VmovHigh(i.OutputRegister(), i.InputFloat64Register(0));
+      DCHECK_EQ(LeaveCC, i.OutputSBit());
+      break;
+    case kArmVmovHighF64U32:
+      __ VmovHigh(i.OutputFloat64Register(), i.InputRegister(1));
+      DCHECK_EQ(LeaveCC, i.OutputSBit());
+      break;
+    case kArmVmovF64U32U32:
+      __ vmov(i.OutputFloat64Register(), i.InputRegister(0),
+              i.InputRegister(1));
+      DCHECK_EQ(LeaveCC, i.OutputSBit());
+      break;
     case kArmLdrb:
       __ ldrb(i.OutputRegister(), i.InputOffset());
       DCHECK_EQ(LeaveCC, i.OutputSBit());
       break;
     case kArmLdrsb:
       __ ldrsb(i.OutputRegister(), i.InputOffset());
       DCHECK_EQ(LeaveCC, i.OutputSBit());
       break;
     case kArmStrb: {
       size_t index = 0;
@@ skipping 450 matching lines @@
     }
   }
   MarkLazyDeoptSite();
 }
 
 #undef __
 
 }  // namespace compiler
 }  // namespace internal
 }  // namespace v8