commit b95fb775cc4c08349d0d905adbc96ad85e50601d
author Vladimir Marko <vmarko@google.com> Wed Sep 30 13:32:31 2015 +0100
committer Vladimir Marko <vmarko@google.com> Thu Oct 08 11:59:48 2015 +0100
tree f8d0212508d5c21f792a1781983d8668d1491aa1
parent b2e436ffcda1d7a87e7bf9133d8ed878388c73c2

Optimizing: Clean up after tagging arena allocations.

Change-Id: Id6ee1fe44c4c57d373db7a39530f29a5ca9aee18

compiler/optimizing/code_generator.h

diff --git a/compiler/optimizing/code_generator.h b/compiler/optimizing/code_generator.h
index 0a36989..acce5b3 100644
--- a/compiler/optimizing/code_generator.h
+++ b/compiler/optimizing/code_generator.h
@@ -531,6 +531,8 @@
 
   template <typename LabelType>
   LabelType* CommonInitializeLabels() {
+    // We use raw array allocations instead of ArenaVector<> because Labels are
+    // non-constructible and non-movable and as such cannot be held in a vector.
     size_t size = GetGraph()->GetBlocks().size();
     LabelType* labels = GetGraph()->GetArena()->AllocArray<LabelType>(size,
                                                                       kArenaAllocCodeGenerator);