Remove inlining restriction of calls to the == operator.

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 1451 matching lines @@
                          token_pos);
     // Stub returns result in flags (result of a cmpl, we need ZF computed).
     __ popq(right);
     __ popq(left);
   } else {
     __ cmpl(left, right);
   }
 }
 
 
-// Implement equality spec: if any of the arguments is null do identity check.
-// Fallthrough calls super equality.
-void FlowGraphCompiler::EmitSuperEqualityCallPrologue(Register result,
-                                                      Label* skip_call) {
-  const Immediate& raw_null =
-      Immediate(reinterpret_cast<intptr_t>(Object::null()));
-  Label check_identity, fall_through;
-  __ cmpq(Address(RSP, 0 * kWordSize), raw_null);
-  __ j(EQUAL, &check_identity, Assembler::kNearJump);
-  __ cmpq(Address(RSP, 1 * kWordSize), raw_null);
-  __ j(NOT_EQUAL, &fall_through, Assembler::kNearJump);
-
-  __ Bind(&check_identity);
-  __ popq(result);
-  __ cmpq(result, Address(RSP, 0 * kWordSize));
-  Label is_false;
-  __ j(NOT_EQUAL, &is_false, Assembler::kNearJump);
-  __ LoadObject(result, Bool::True());
-  __ Drop(1);
-  __ jmp(skip_call);
-  __ Bind(&is_false);
-  __ LoadObject(result, Bool::False());
-  __ Drop(1);
-  __ jmp(skip_call);
-  __ Bind(&fall_through);
-}
-
-
 // This function must be in sync with FlowGraphCompiler::RecordSafepoint.
 void FlowGraphCompiler::SaveLiveRegisters(LocationSummary* locs) {
   // TODO(vegorov): consider saving only caller save (volatile) registers.
   const intptr_t xmm_regs_count = locs->live_registers()->fpu_regs_count();
   if (xmm_regs_count > 0) {
     __ subq(RSP, Immediate(xmm_regs_count * kFpuRegisterSize));
     // Store XMM registers with the lowest register number at the lowest
     // address.
     intptr_t offset = 0;
     for (intptr_t reg_idx = 0; reg_idx < kNumberOfXmmRegisters; ++reg_idx) {
@@ skipping 381 matching lines @@
   __ movups(reg, Address(RSP, 0));
   __ addq(RSP, Immediate(kFpuRegisterSize));
 }
 
 
 #undef __
 
 }  // namespace dart
 
 #endif  // defined TARGET_ARCH_X64