Get rid of dynamic call debug stub

runtime/vm/stub_code_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"
 #if defined(TARGET_ARCH_ARM)
 
 #include "vm/assembler.h"
 #include "vm/code_generator.h"
 #include "vm/compiler.h"
@@ skipping 1818 matching lines @@
   __ LoadImmediate(R0, reinterpret_cast<intptr_t>(Object::null()));
   // Preserve arguments descriptor and make room for result.
   __ PushList((1 << R0) | (1 << R4) | (1 << R5));
   __ CallRuntime(kBreakpointRuntimeHandlerRuntimeEntry, 0);
   __ PopList((1 << R0) | (1 << R4) | (1 << R5));
   __ LeaveStubFrame();
   __ bx(R0);
 }
 
 
-//  LR: return address (Dart code).
-//  R5: inline cache data array.
-void StubCode::GenerateBreakpointDynamicStub(Assembler* assembler) {
-  // Create a stub frame as we are pushing some objects on the stack before
-  // calling into the runtime.
-  __ EnterStubFrame();
-  __ Push(R5);
-  __ CallRuntime(kBreakpointDynamicHandlerRuntimeEntry, 0);
-  __ Pop(R5);
-  __ LeaveStubFrame();
-
-  // Find out which dispatch stub to call.
-  __ ldr(IP, FieldAddress(R5, ICData::num_args_tested_offset()));
-  __ cmp(IP, ShifterOperand(1));
-  __ Branch(&StubCode::OneArgCheckInlineCacheLabel(), EQ);
-  __ cmp(IP, ShifterOperand(2));
-  __ Branch(&StubCode::TwoArgsCheckInlineCacheLabel(), EQ);
-  __ cmp(IP, ShifterOperand(3));
-  __ Branch(&StubCode::ThreeArgsCheckInlineCacheLabel(), EQ);
-  __ Stop("Unsupported number of arguments tested.");
-}
-
-
 // Called only from unoptimized code. All relevant registers have been saved.
 void StubCode::GenerateDebugStepCheckStub(
     Assembler* assembler) {
   // Check single stepping.
   Label not_stepping;
   __ ldr(R1, FieldAddress(CTX, Context::isolate_offset()));
   __ ldrb(R1, Address(R1, Isolate::single_step_offset()));
   __ CompareImmediate(R1, 0);
   __ b(&not_stepping, EQ);
   __ EnterStubFrame();
@@ skipping 271 matching lines @@
   const Register right = R0;
   __ ldr(left, Address(SP, 1 * kWordSize));
   __ ldr(right, Address(SP, 0 * kWordSize));
   GenerateIdenticalWithNumberCheckStub(assembler, left, right, temp);
   __ Ret();
 }
 
 }  // namespace dart
 
 #endif  // defined TARGET_ARCH_ARM