Put PushArgument into the environment instead of raw values.

runtime/vm/intermediate_language_x64.cc

 // Copyright (c) 2012, 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/intermediate_language.h"
 
 #include "lib/error.h"
@@ skipping 1694 matching lines @@
   const Class& double_class = compiler->double_class();
   const Code& stub =
     Code::Handle(StubCode::GetAllocationStubForClass(double_class));
   const ExternalLabel label(double_class.ToCString(), stub.EntryPoint());
   compiler->GenerateCall(instance_call()->token_pos(),
                          instance_call()->try_index(),
                          &label,
                          PcDescriptors::kOther);
   // Newly allocated object is now in the result register (RAX).
   ASSERT(result == RAX);
-  __ popq(right);
-  __ popq(left);
+  __ movq(right, Address(RSP, 0));
+  __ movq(left, Address(RSP, kWordSize));
 
   Label* deopt = compiler->AddDeoptStub(instance_call()->deopt_id(),
                                         instance_call()->try_index(),
-                                        kDeoptDoubleBinaryOp,
-                                        left,
-                                        right);
+                                        kDeoptDoubleBinaryOp);
 
   // Binary operation of two Smi's produces a Smi not a double.
   __ movq(temp, left);
   __ orq(temp, right);
   __ testq(temp, Immediate(kSmiTagMask));
   __ j(ZERO, deopt);
 
   compiler->LoadDoubleOrSmiToXmm(XMM0, left, temp, deopt);
   compiler->LoadDoubleOrSmiToXmm(XMM1, right, temp, deopt);
 
   switch (op_kind()) {
     case Token::kADD: __ addsd(XMM0, XMM1); break;
     case Token::kSUB: __ subsd(XMM0, XMM1); break;
     case Token::kMUL: __ mulsd(XMM0, XMM1); break;
     case Token::kDIV: __ divsd(XMM0, XMM1); break;
     default: UNREACHABLE();
   }
 
   __ movsd(FieldAddress(result, Double::value_offset()), XMM0);
+
+  __ Drop(2);
 }
 
 
 LocationSummary* UnarySmiOpComp::MakeLocationSummary() const {
   const intptr_t kNumInputs = 1;
   const intptr_t kNumTemps = 0;
   LocationSummary* summary =
       new LocationSummary(kNumInputs, kNumTemps, LocationSummary::kNoCall);
   summary->set_in(0, Location::RequiresRegister());
   summary->set_out(Location::SameAsFirstInput());
@@ skipping 316 matching lines @@
                                  kNumArgsChecked);
   __ CompareObject(RAX, compiler->bool_true());
   EmitBranchOnCondition(compiler, branch_condition);
 }
 
 }  // namespace dart
 
 #undef __
 
 #endif  // defined TARGET_ARCH_X64