Optimize AOT's switchable calls for the monomorphic case.

runtime/vm/profiler.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 "platform/address_sanitizer.h"
 #include "platform/memory_sanitizer.h"
 #include "platform/utils.h"
 
 #include "vm/allocation.h"
 #include "vm/atomic.h"
@@ skipping 185 matching lines @@
 
   uword pc() {
     return pc_;
   }
 
   // Returns false on failure.
   bool LocateReturnAddress(uword* return_address);
 
   // Returns offset into code object.
   intptr_t RelativePC() {
-    ASSERT(pc() >= code_.EntryPoint());
-    return static_cast<intptr_t>(pc() - code_.EntryPoint());
+    ASSERT(pc() >= code_.PayloadStart());
+    return static_cast<intptr_t>(pc() - code_.PayloadStart());
   }
 
   uint8_t* CodePointer(intptr_t offset) {
     const intptr_t size = code_.Size();
     ASSERT(offset < size);
-    uint8_t* code_pointer = reinterpret_cast<uint8_t*>(code_.EntryPoint());
+    uint8_t* code_pointer = reinterpret_cast<uint8_t*>(code_.PayloadStart());
     code_pointer += offset;
     return code_pointer;
   }
 
   uword StackAt(intptr_t i) {
     ASSERT(i >= 0);
     ASSERT(i < Sample::kStackBufferSizeInWords);
     return stack_buffer_[i];
   }
 
@@ skipping 1031 matching lines @@
 }
 
 
 
 CodeDescriptor::CodeDescriptor(const Code& code) : code_(code) {
   ASSERT(!code_.IsNull());
 }
 
 
 uword CodeDescriptor::Entry() const {
-  return code_.EntryPoint();
+  // BOGUS?

[Florian Schneider, 2016/08/10 02:32:14]

Left-over?

[rmacnak, 2016/08/11 00:17:49]

Renamed as Start

+  return code_.PayloadStart();
 }
 
 
 uword CodeDescriptor::Size() const {
   return code_.Size();
 }
 
 
 int64_t CodeDescriptor::CompileTimestamp() const {
   return code_.compile_timestamp();
@@ skipping 305 matching lines @@
 
 
 ProcessedSampleBuffer::ProcessedSampleBuffer()
     : code_lookup_table_(new CodeLookupTable(Thread::Current())) {
   ASSERT(code_lookup_table_ != NULL);
 }
 
 #endif  // !PRODUCT
 
 }  // namespace dart