Optimize AOT's switchable calls for the monomorphic case.

runtime/vm/debugger.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/debugger.h"
 
 #include "include/dart_api.h"
 
 #include "vm/code_generator.h"
 #include "vm/code_patcher.h"
@@ skipping 501 matching lines @@
 }
 
 
 // Compute token_pos_ and try_index_ and token_pos_initialized_.
 TokenPosition ActivationFrame::TokenPos() {
   if (!token_pos_initialized_) {
     token_pos_initialized_ = true;
     token_pos_ = TokenPosition::kNoSource;
     GetPcDescriptors();
     PcDescriptors::Iterator iter(pc_desc_, RawPcDescriptors::kAnyKind);
-    uword pc_offset = pc_ - code().EntryPoint();
+    uword pc_offset = pc_ - code().PayloadStart();
     while (iter.MoveNext()) {
       if (iter.PcOffset() == pc_offset) {
         try_index_ = iter.TryIndex();
         token_pos_ = iter.TokenPos();
         break;
       }
     }
   }
   return token_pos_;
 }
@@ skipping 988 matching lines @@
   for (intptr_t i = 0; i < ex_trace.Length(); i++) {
     function = ex_trace.FunctionAtFrame(i);
     // Pre-allocated Stacktraces may include empty slots, either (a) to indicate
     // where frames were omitted in the case a stack has more frames than the
     // pre-allocated trace (such as a stack overflow) or (b) because a stack has
     // fewer frames that the pre-allocated trace (such as memory exhaustion with
     // a shallow stack).
     if (!function.IsNull() && function.is_visible()) {
       code = ex_trace.CodeAtFrame(i);
       ASSERT(function.raw() == code.function());
-      uword pc = code.EntryPoint() + Smi::Value(ex_trace.PcOffsetAtFrame(i));
+      uword pc = code.PayloadStart() + Smi::Value(ex_trace.PcOffsetAtFrame(i));
       if (code.is_optimized() && ex_trace.expand_inlined()) {
         // Traverse inlined frames.
         for (InlinedFunctionsIterator it(code, pc); !it.Done(); it.Advance()) {
           function = it.function();
           code = it.code();
           ASSERT(function.raw() == code.function());
           uword pc = it.pc();
           ASSERT(pc != 0);
-          ASSERT(code.EntryPoint() <= pc);
-          ASSERT(pc < (code.EntryPoint() + code.Size()));
+          ASSERT(code.PayloadStart() <= pc);
+          ASSERT(pc < (code.PayloadStart() + code.Size()));
 
           ActivationFrame* activation = new ActivationFrame(
             pc, fp, sp, code, deopt_frame, deopt_frame_offset);
           stack_trace->AddActivation(activation);
         }
       } else {
         ActivationFrame* activation = new ActivationFrame(
           pc, fp, sp, code, deopt_frame, deopt_frame_offset);
         stack_trace->AddActivation(activation);
       }
@@ skipping 269 matching lines @@
     if (iter.TokenPos() == loc->token_pos_) {
       if (iter.PcOffset() < lowest_pc_offset) {
         lowest_pc_offset = iter.PcOffset();
         lowest_kind = iter.Kind();
       }
     }
   }
   if (lowest_pc_offset == kUwordMax) {
     return;
   }
-  uword lowest_pc = code.EntryPoint() + lowest_pc_offset;
+  uword lowest_pc = code.PayloadStart() + lowest_pc_offset;
   CodeBreakpoint* code_bpt = GetCodeBreakpoint(lowest_pc);
   if (code_bpt == NULL) {
     // No code breakpoint for this code exists; create one.
     code_bpt = new CodeBreakpoint(code, loc->token_pos_,
                                   lowest_pc, lowest_kind);
     RegisterCodeBreakpoint(code_bpt);
   }
   code_bpt->set_bpt_location(loc);
   if (loc->AnyEnabled()) {
     code_bpt->Enable();
@@ skipping 1475 matching lines @@
 
 void Debugger::RegisterCodeBreakpoint(CodeBreakpoint* bpt) {
   ASSERT(bpt->next() == NULL);
   bpt->set_next(code_breakpoints_);
   code_breakpoints_ = bpt;
 }
 
 #endif  // !PRODUCT
 
 }  // namespace dart