[turbofan] Spill rsi and rdi in their existing locations.

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 1064 matching lines @@
 void InstructionSelector::VisitGuard(Node* node) {
   OperandGenerator g(this);
   Node* value = node->InputAt(0);
   Emit(kArchNop, g.DefineSameAsFirst(node), g.Use(value));
 }
 
 
 void InstructionSelector::VisitParameter(Node* node) {
   OperandGenerator g(this);
   int index = ParameterIndexOf(node->op());
-  Emit(kArchNop,
-       g.DefineAsLocation(node, linkage()->GetParameterLocation(index),
-                          linkage()->GetParameterType(index)));
+  InstructionOperand op =
+      linkage()->ParameterHasSecondaryLocation(index)
+          ? g.DefineAsDualLocation(
+                node, linkage()->GetParameterLocation(index),
+                linkage()->GetParameterSecondaryLocation(index))
+          : g.DefineAsLocation(node, linkage()->GetParameterLocation(index),
+                               linkage()->GetParameterType(index));
+
+  Emit(kArchNop, op);
 }
 
 
 void InstructionSelector::VisitIfException(Node* node) {
   OperandGenerator g(this);
   Node* call = node->InputAt(1);
   DCHECK_EQ(IrOpcode::kCall, call->opcode());
   const CallDescriptor* descriptor = OpParameter<const CallDescriptor*>(call);
   Emit(kArchNop, g.DefineAsLocation(node, descriptor->GetReturnLocation(0),
                                     descriptor->GetReturnType(0)));
@@ skipping 262 matching lines @@
   return new (instruction_zone()) FrameStateDescriptor(
       instruction_zone(), state_info.type(), state_info.bailout_id(),
       state_info.state_combine(), parameters, locals, stack,
       state_info.shared_info(), outer_state);
 }
 
 
 }  // namespace compiler
 }  // namespace internal
 }  // namespace v8