[turbofan] Add support for reinterpreting integers as floating point and vice versa.

src/compiler/instruction-selector.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/instruction-selector.h"
 
 #include <limits>
 
 #include "src/base/adapters.h"
 #include "src/compiler/instruction-selector-impl.h"
@@ skipping 681 matching lines @@
     case IrOpcode::kChangeInt32ToInt64:
       return MarkAsWord64(node), VisitChangeInt32ToInt64(node);
     case IrOpcode::kChangeUint32ToUint64:
       return MarkAsWord64(node), VisitChangeUint32ToUint64(node);
     case IrOpcode::kTruncateFloat64ToFloat32:
       return MarkAsFloat32(node), VisitTruncateFloat64ToFloat32(node);
     case IrOpcode::kTruncateFloat64ToInt32:
       return MarkAsWord32(node), VisitTruncateFloat64ToInt32(node);
     case IrOpcode::kTruncateInt64ToInt32:
       return MarkAsWord32(node), VisitTruncateInt64ToInt32(node);
+    case IrOpcode::kBitcastFloat32ToInt32:
+      return MarkAsWord32(node), VisitBitcastFloat32ToInt32(node);
+    case IrOpcode::kBitcastFloat64ToInt64:
+      return MarkAsWord64(node), VisitBitcastFloat64ToInt64(node);
+    case IrOpcode::kBitcastInt32ToFloat32:
+      return MarkAsFloat32(node), VisitBitcastInt32ToFloat32(node);
+    case IrOpcode::kBitcastInt64ToFloat64:
+      return MarkAsFloat64(node), VisitBitcastInt64ToFloat64(node);
     case IrOpcode::kFloat32Add:
       return MarkAsFloat32(node), VisitFloat32Add(node);
     case IrOpcode::kFloat32Sub:
       return MarkAsFloat32(node), VisitFloat32Sub(node);
     case IrOpcode::kFloat32Mul:
       return MarkAsFloat32(node), VisitFloat32Mul(node);
     case IrOpcode::kFloat32Div:
       return MarkAsFloat32(node), VisitFloat32Div(node);
     case IrOpcode::kFloat32Min:
       return MarkAsFloat32(node), VisitFloat32Min(node);
@@ skipping 185 matching lines @@
 
 void InstructionSelector::VisitChangeUint32ToUint64(Node* node) {
   UNIMPLEMENTED();
 }
 
 
 void InstructionSelector::VisitTruncateInt64ToInt32(Node* node) {
   UNIMPLEMENTED();
 }
 
+
+void InstructionSelector::VisitBitcastFloat64ToInt64(Node* node) {
+  UNIMPLEMENTED();
+}
+
+
+void InstructionSelector::VisitBitcastInt64ToFloat64(Node* node) {
+  UNIMPLEMENTED();
+}
+
 #endif  // V8_TARGET_ARCH_32_BIT
 
 
 void InstructionSelector::VisitFinish(Node* node) {
   OperandGenerator g(this);
   Node* value = node->InputAt(0);
   Emit(kArchNop, g.DefineSameAsFirst(node), g.Use(value));
 }
 
 
@@ skipping 209 matching lines @@
   for (StateValuesAccess::TypedNode input_node : StateValuesAccess(stack)) {
     inputs->push_back(OperandForDeopt(&g, input_node.node, kind));
     descriptor->SetType(value_index++, input_node.type);
   }
   DCHECK(value_index == descriptor->GetSize());
 }
 
 }  // namespace compiler
 }  // namespace internal
 }  // namespace v8