Improve polymorphic inlining of int/int double/double operations.

runtime/vm/flow_graph_compiler_x64.cc

 // Copyright (c) 2013, the Dart project authors.  Please see the AUTHORS file
 // for details. All rights reserved. Use of this source code is governed by a
 // BSD-style license that can be found in the LICENSE file.
 
 #include "vm/globals.h"  // Needed here to get TARGET_ARCH_X64.
 #if defined(TARGET_ARCH_X64)
 
 #include "vm/flow_graph_compiler.h"
 
 #include "vm/ast_printer.h"
@@ skipping 1197 matching lines @@
   }
 }
 
 
 void FlowGraphCompiler::EmitUnoptimizedStaticCall(
     intptr_t argument_count,
     intptr_t deopt_id,
     intptr_t token_pos,
     LocationSummary* locs,
     const ICData& ic_data) {
-  uword label_address = 0;
   StubCode* stub_code = isolate()->stub_code();
-  if (ic_data.NumArgsTested() == 0) {
-    label_address = stub_code->ZeroArgsUnoptimizedStaticCallEntryPoint();
-  } else if (ic_data.NumArgsTested() == 2) {
-    label_address = stub_code->TwoArgsUnoptimizedStaticCallEntryPoint();
-  } else {
-    UNIMPLEMENTED();
-  }
+  const uword label_address =
+      stub_code->UnoptimizedStaticCallEntryPoint(ic_data.NumArgsTested());
   ExternalLabel target_label(label_address);
   __ LoadObject(RBX, ic_data, PP);
   GenerateDartCall(deopt_id,
                    token_pos,
                    &target_label,
                    RawPcDescriptors::kUnoptStaticCall,
                    locs);
   __ Drop(argument_count);
 #if defined(DEBUG)
   __ movq(RBX, Immediate(kInvalidObjectPointer));
@@ skipping 497 matching lines @@
   __ movups(reg, Address(RSP, 0));
   __ AddImmediate(RSP, Immediate(kFpuRegisterSize), PP);
 }
 
 
 #undef __
 
 }  // namespace dart
 
 #endif  // defined TARGET_ARCH_X64