Relax TransitionElementsKind DependsOn/Changes dependencies.

test/mjsunit/elements-transition-hoisting.js

Index: test/mjsunit/elements-transition-hoisting.js
diff --git a/test/mjsunit/elements-transition-hoisting.js b/test/mjsunit/elements-transition-hoisting.js
index 76f7b82b5ae4d15711364ccbf0e3db1c86ae6e36..5e78f10a0b4a2f58842dfc4b956beb9f7e4feb3d 100644
--- a/test/mjsunit/elements-transition-hoisting.js
+++ b/test/mjsunit/elements-transition-hoisting.js
@@ -170,4 +170,42 @@ if (support_smi_only_arrays) {
   testHoistingWithSideEffect(new Array(5));
   testHoistingWithSideEffect(new Array(5));
   assertTrue(2 != %GetOptimizationStatus(testHoistingWithSideEffect));
+
+  function testStraightLineDupeElinination(a,b,c,d,e,f) {
+    var count = 3;
+    do {
+      assertTrue(true);
+      a[0] = b;
+      a[1] = c;
+      a[2] = d;
+      assertTrue(true);
+      a[3] = e; // TransitionElementsKind should be eliminated despite call.
+      a[4] = f;
+    } while (--count > 3);
+  }
+
+  testStraightLineDupeElinination(new Array(0, 0, 0, 0, 0),0,0,0,0,.5);
+  testStraightLineDupeElinination(new Array(0, 0, 0, 0, 0),0,0,0,.5,0);
+  testStraightLineDupeElinination(new Array(0, 0, 0, 0, 0),0,0,.5,0,0);
+  testStraightLineDupeElinination(new Array(0, 0, 0, 0, 0),0,.5,0,0,0);
+  testStraightLineDupeElinination(new Array(0, 0, 0, 0, 0),.5,0,0,0,0);
+  testStraightLineDupeElinination(new Array(.1,.1,.1,.1,.1),0,0,0,0,.5);
+  testStraightLineDupeElinination(new Array(.1,.1,.1,.1,.1),0,0,0,.5,0);
+  testStraightLineDupeElinination(new Array(.1,.1,.1,.1,.1),0,0,.5,0,0);
+  testStraightLineDupeElinination(new Array(.1,.1,.1,.1,.1),0,.5,0,0,0);
+  testStraightLineDupeElinination(new Array(.1,.1,.1,.1,.1),.5,0,0,0,0);
+  testStraightLineDupeElinination(new Array(5),.5,0,0,0,0);
+  testStraightLineDupeElinination(new Array(5),0,.5,0,0,0);
+  testStraightLineDupeElinination(new Array(5),0,0,.5,0,0);
+  testStraightLineDupeElinination(new Array(5),0,0,0,.5,0);
+  testStraightLineDupeElinination(new Array(5),0,0,0,0,.5);
+  testStraightLineDupeElinination(new Array(5),.5,0,0,0,0);
+  testStraightLineDupeElinination(new Array(5),0,.5,0,0,0);
+  testStraightLineDupeElinination(new Array(5),0,0,.5,0,0);
+  testStraightLineDupeElinination(new Array(5),0,0,0,.5,0);
+  testStraightLineDupeElinination(new Array(5),0,0,0,0,.5);
+  %OptimizeFunctionOnNextCall(testStraightLineDupeElinination);
+  testStraightLineDupeElinination(new Array(5));
+  testStraightLineDupeElinination(new Array(5));
+  assertTrue(2 != %GetOptimizationStatus(testStraightLineDupeElinination));
 }