Remove obsolete elements kind check for array literals.

R=jkummerow@chromium.org

Review URL: https://codereview.chromium.org/17378005

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@15194 ce2b1a6d-e550-0410-aec6-3dcde31c8c00

src/hydrogen.cc

@@ -6050,26 +6050,6 @@ void HOptimizedGraphBuilder::VisitArrayLiteral(ArrayLiteral* expr) {
     Handle<FixedArray> constants = isolate()->factory()->empty_fixed_array();
     int literal_index = expr->literal_index();
 
-    // TODO(mstarzinger): The following check and deopt is actually obsolete
-    // but test cases for the tick processor fails because profile differs.
-
-    // Deopt if the array literal boilerplate ElementsKind is of a type
-    // different than the expected one. The check isn't necessary if the
-    // boilerplate has already been converted to TERMINAL_FAST_ELEMENTS_KIND.
-    if (CanTransitionToMoreGeneralFastElementsKind(
-            boilerplate_elements_kind, true)) {
-      IfBuilder builder(this);
-      HValue* boilerplate = AddInstruction(new(zone())
-          HConstant(original_boilerplate_object));
-      HValue* elements_kind = AddInstruction(new(zone())
-          HElementsKind(boilerplate));
-      HValue* expected_kind = AddInstruction(new(zone())
-          HConstant(boilerplate_elements_kind));
-      builder.IfCompare(elements_kind, expected_kind, Token::EQ);
-      builder.Then();
-      builder.ElseDeopt();
-    }
-
     AddInstruction(new(zone()) HPushArgument(AddInstruction(
         new(zone()) HConstant(literals))));
     AddInstruction(new(zone()) HPushArgument(AddInstruction(

test/mjsunit/tools/tickprocessor.js

@@ -25,6 +25,10 @@
 // (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
 // OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
 
+// This test case is not compatible with optimization stress because the
+// generated profile will look vastly different when more is optimized.
+// Flags: --nostress-opt --noalways-opt
+
 // Load implementations from <project root>/tools.
 // Files: tools/splaytree.js tools/codemap.js tools/csvparser.js
 // Files: tools/consarray.js tools/profile.js tools/profile_view.js