Remove inlining restriction of calls to the == operator.

runtime/vm/flow_graph_compiler_arm.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_ARM.
 #if defined(TARGET_ARCH_ARM)
 
 #include "vm/flow_graph_compiler.h"
 
 #include "vm/ast_printer.h"
@@ skipping 1442 matching lines @@
                          token_pos);
     // Stub returns result in flags (result of a cmpl, we need ZF computed).
     __ Pop(right);
     __ Pop(left);
   } else {
     __ cmp(left, ShifterOperand(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) {
-  Label check_identity, fall_through;
-  __ LoadImmediate(IP, reinterpret_cast<intptr_t>(Object::null()));
-  __ ldr(result, Address(SP, 0 * kWordSize));  // Load right operand.
-  __ cmp(result, ShifterOperand(IP));  // Is right null?
-  __ ldr(result, Address(SP, 1 * kWordSize));  // Load left operand.
-  __ b(&check_identity, EQ);  // Branch if right (IP) is null; left in result.
-  __ cmp(result, ShifterOperand(IP));  // Right is non-null; is left null?
-  __ b(&fall_through, NE);
-  // Right is non-null, left is null. We could return false, but we save code
-  // by falling through with an IP different than null.
-  __ mov(IP, ShifterOperand(0));
-  __ Bind(&check_identity);
-  __ cmp(result, ShifterOperand(IP));
-  __ LoadObject(result, Bool::True(), EQ);
-  __ LoadObject(result, Bool::False(), NE);
-  __ Drop(2);
-  __ b(skip_call);
-  __ Bind(&fall_through);
-}
-
-
 void FlowGraphCompiler::SaveLiveRegisters(LocationSummary* locs) {
   // TODO(vegorov): consider saving only caller save (volatile) registers.
   const intptr_t fpu_regs_count = locs->live_registers()->fpu_regs_count();
   if (fpu_regs_count > 0) {
     __ AddImmediate(SP, -(fpu_regs_count * kFpuRegisterSize));
     // Store fpu registers with the lowest register number at the lowest
     // address.
     intptr_t offset = 0;
     for (intptr_t reg_idx = 0; reg_idx < kNumberOfFpuRegisters; ++reg_idx) {
       QRegister fpu_reg = static_cast<QRegister>(reg_idx);
@@ skipping 403 matching lines @@
   DRegister dreg = EvenDRegisterOf(reg);
   __ vldrd(dreg, Address(SP, kDoubleSize, Address::PostIndex));
 }
 
 
 #undef __
 
 }  // namespace dart
 
 #endif  // defined TARGET_ARCH_ARM