Revert "ART: Update DCE to work with try/catch"

This reverts commit ce52901e2c8377fc1c331ae0faf7fbcb46b9da97.

Change-Id: I6b3a1f2a3dc036030b089b0df2005ecefa66b949

1 files changed, 7 insertions, 5 deletions

diff --git a/compiler/optimizing/dead_code_elimination.cc b/compiler/optimizing/dead_code_elimination.cc
index 02e5dab3d4..9754043f32 100644
--- a/compiler/optimizing/dead_code_elimination.cc
+++ b/compiler/optimizing/dead_code_elimination.cc
@@ -123,21 +123,20 @@ void HDeadCodeElimination::RemoveDeadBlocks() {
   }
 
   // If we removed at least one block, we need to recompute the full
-  // dominator tree and try block membership.
+  // dominator tree.
   if (removed_one_or_more_blocks) {
     graph_->ClearDominanceInformation();
     graph_->ComputeDominanceInformation();
-    graph_->ComputeTryBlockInformation();
   }
 
   // Connect successive blocks created by dead branches. Order does not matter.
   for (HReversePostOrderIterator it(*graph_); !it.Done();) {
     HBasicBlock* block  = it.Current();
-    if (block->IsEntryBlock() || !block->GetLastInstruction()->IsGoto()) {
+    if (block->IsEntryBlock() || block->GetSuccessors().size() != 1u) {
       it.Advance();
       continue;
     }
-    HBasicBlock* successor = block->GetSingleSuccessor();
+    HBasicBlock* successor = block->GetSuccessors()[0];
     if (successor->IsExitBlock() || successor->GetPredecessors().size() != 1u) {
       it.Advance();
       continue;
@@ -177,7 +176,10 @@ void HDeadCodeElimination::RemoveDeadInstructions() {
 }
 
 void HDeadCodeElimination::Run() {
-  RemoveDeadBlocks();
+  if (!graph_->HasTryCatch()) {
+    // TODO: Update dead block elimination and enable for try/catch.
+    RemoveDeadBlocks();
+  }
   SsaRedundantPhiElimination(graph_).Run();
   RemoveDeadInstructions();
 }