From 862307ccacac1bdb5d6c6fd16303172d36667e6f Mon Sep 17 00:00:00 2001
From: Ryan Macnak <rmacnak@google.com>
Date: Wed, 4 Nov 2015 15:13:16 -0800
Subject: [PATCH] Output precompiled snapshot size.

R=fschneider@google.com

Review URL: https://codereview.chromium.org/1414083004 .
---
 runtime/vm/snapshot.cc | 9 +++++++++
 runtime/vm/snapshot.h  | 7 ++++++-
 2 files changed, 15 insertions(+), 1 deletion(-)

diff --git a/runtime/vm/snapshot.cc b/runtime/vm/snapshot.cc
index db09095cf5e..0bffe7ba051 100644
--- a/runtime/vm/snapshot.cc
+++ b/runtime/vm/snapshot.cc
@@ -1951,6 +1951,15 @@ void FullSnapshotWriter::WriteFullSnapshot() {
   if (snapshot_code_) {
     instructions_writer_->WriteAssembly();
     instructions_snapshot_size_ = instructions_writer_->BytesWritten();
+
+    OS::Print("VMIsolate(CodeSize): %" Pd "\n", VmIsolateSnapshotSize());
+    OS::Print("Isolate(CodeSize): %" Pd "\n", IsolateSnapshotSize());
+    OS::Print("Instructions(CodeSize): %" Pd "\n",
+              instructions_writer_->binary_size());
+    intptr_t total = VmIsolateSnapshotSize() +
+                     IsolateSnapshotSize() +
+                     instructions_writer_->binary_size();
+    OS::Print("Total(CodeSize): %" Pd "\n", total);
   }
 }
 
diff --git a/runtime/vm/snapshot.h b/runtime/vm/snapshot.h
index a95e28ebfda..51cf5caa98e 100644
--- a/runtime/vm/snapshot.h
+++ b/runtime/vm/snapshot.h
@@ -804,14 +804,17 @@ class InstructionsWriter : public ZoneAllocated {
                      intptr_t initial_size)
     : stream_(buffer, alloc, initial_size),
       next_offset_(InstructionsSnapshot::kHeaderSize),
+      binary_size_(0),
       instructions_() {
     ASSERT(buffer != NULL);
     ASSERT(alloc != NULL);
   }
 
-  // Size of the snapshot.
+  // Size of the snapshot (assembly code).
   intptr_t BytesWritten() const { return stream_.bytes_written(); }
 
+  intptr_t binary_size() { return binary_size_; }
+
   int32_t GetOffsetFor(RawInstructions* instructions);
 
   void SetInstructionsCode(RawInstructions* insns, RawCode* code) {
@@ -848,10 +851,12 @@ class InstructionsWriter : public ZoneAllocated {
 #else
     stream_.Print(".long 0x%0.8" Px "\n", value);
 #endif
+    binary_size_ += sizeof(value);
   }
 
   WriteStream stream_;
   intptr_t next_offset_;
+  intptr_t binary_size_;
   GrowableArray<InstructionsData> instructions_;
 
   DISALLOW_COPY_AND_ASSIGN(InstructionsWriter);