commit 84daae5ce19038156c0fa0cdbc33d47efdb7e66b
author David Brazdil <dbrazdil@google.com> Mon May 18 12:06:52 2015 +0100
committer David Brazdil <dbrazdil@google.com> Mon May 18 12:06:52 2015 +0100
tree 5f507470744edd6b1a436c9e4514f0d464ca38eb
parent c88b09fc1d67413e814a10d20752e46aa28bc0e4

ART: Removed redundant Phis as part of DCE

Removing dead blocks can render some phis redundant but they do not
get removed. This patch adds running SsaRedundantPhiElimination to
adress that.

Change-Id: Iec9a16f3c20b2d5b5607cd5aaf802917c155a0f1

compiler/optimizing/dead_code_elimination.cc

diff --git a/compiler/optimizing/dead_code_elimination.cc b/compiler/optimizing/dead_code_elimination.cc
index 6fbe75e..b31de98 100644
--- a/compiler/optimizing/dead_code_elimination.cc
+++ b/compiler/optimizing/dead_code_elimination.cc
@@ -17,6 +17,7 @@
 #include "dead_code_elimination.h"
 
 #include "base/bit_vector-inl.h"
+#include "ssa_phi_elimination.h"
 
 namespace art {
 
@@ -132,6 +133,7 @@
 
 void HDeadCodeElimination::Run() {
   RemoveDeadBlocks();
+  SsaRedundantPhiElimination(graph_).Run();
   RemoveDeadInstructions();
 }