commit f6a35de9eeefb20f6446f1b4815b4dcb0161d09c
author Vladimir Marko <vmarko@google.com> Mon Mar 21 12:01:50 2016 +0000
committer Vladimir Marko <vmarko@google.com> Mon Mar 21 16:50:08 2016 +0000
tree cf484acbd6889b92a7fe3e8615611129088c3894
parent 459898dc4470559ba1e1d578bc52a914d1f573f5

Optimizing: Fix register allocator validation memory usage.

Also attribute ArenaBitVector allocations to appropriate
passes. This was used to track down the source of the
excessive memory alloactions.

Bug: 27690481

Change-Id: Ib895984cb7c04e24cbc7abbd8322079bab8ab100

compiler/optimizing/dead_code_elimination.cc

diff --git a/compiler/optimizing/dead_code_elimination.cc b/compiler/optimizing/dead_code_elimination.cc
index e170e37..d7bf16e 100644
--- a/compiler/optimizing/dead_code_elimination.cc
+++ b/compiler/optimizing/dead_code_elimination.cc
@@ -97,7 +97,7 @@
   }
   // Classify blocks as reachable/unreachable.
   ArenaAllocator* allocator = graph_->GetArena();
-  ArenaBitVector live_blocks(allocator, graph_->GetBlocks().size(), false);
+  ArenaBitVector live_blocks(allocator, graph_->GetBlocks().size(), false, kArenaAllocDCE);
 
   MarkReachableBlocks(graph_, &live_blocks);
   bool removed_one_or_more_blocks = false;