Adding ElementsAccessor::Splice

test/mjsunit/array-natives-elements.js

Index: test/mjsunit/array-natives-elements.js
diff --git a/test/mjsunit/array-natives-elements.js b/test/mjsunit/array-natives-elements.js
index a19a931adbf5ebee90cc50af5b66a37a8fbc85bf..a29ebfc5c67483ebeb1066d706a5aaad2e692fb9 100644
--- a/test/mjsunit/array-natives-elements.js
+++ b/test/mjsunit/array-natives-elements.js
@@ -151,28 +151,26 @@ function array_natives_test() {
   assertTrue(%HasFastSmiElements(a3));
   assertEquals([1], a3r);
   assertEquals([2, 2, 3], a3);
-
   a3 = [1.1,2,3];
   a3r = a3.splice(0, 0);
   assertTrue(%HasFastDoubleElements(a3r));
   assertTrue(%HasFastDoubleElements(a3));
   assertEquals([], a3r);
   assertEquals([1.1, 2, 3], a3);
-  a3 = [1.1,2,3];
+  a3 = [1.1, 2, 3];
   a3r = a3.splice(0, 1);
   assertTrue(%HasFastDoubleElements(a3r));
   assertTrue(%HasFastDoubleElements(a3));
   assertEquals([1.1], a3r);
   assertEquals([2, 3], a3);
-  a3 = [1.1,2,3];
+  a3 = [1.1, 2, 3];
   a3r = a3.splice(0, 0, 2);
-  // Commented out since handled in js, which takes the best fit.
-  // assertTrue(%HasFastDoubleElements(a3r));
-  assertTrue(%HasFastSmiElements(a3r));
+  assertTrue(%HasFastDoubleElements(a3r));
   assertTrue(%HasFastDoubleElements(a3));
   assertEquals([], a3r);
   assertEquals([2, 1.1, 2, 3], a3);
-  a3 = [1.1,2,3];
+  a3 = [1.1, 2, 3];
+  assertTrue(%HasFastDoubleElements(a3));
   a3r = a3.splice(0, 1, 2);
   assertTrue(%HasFastDoubleElements(a3r));
   assertTrue(%HasFastDoubleElements(a3));
@@ -180,9 +178,7 @@ function array_natives_test() {
   assertEquals([2, 2, 3], a3);
   a3 = [1.1,2,3];
   a3r = a3.splice(0, 0, 2.1);
-  // Commented out since handled in js, which takes the best fit.
-  // assertTrue(%HasFastDoubleElements(a3r));
-  assertTrue(%HasFastSmiElements(a3r));
+  assertTrue(%HasFastDoubleElements(a3r));
   assertTrue(%HasFastDoubleElements(a3));
   assertEquals([], a3r);
   assertEquals([2.1, 1.1, 2, 3], a3);
@@ -194,9 +190,7 @@ function array_natives_test() {
   assertEquals([2.2, 2, 3], a3);
   a3 = [1,2,3];
   a3r = a3.splice(0, 0, 2.1);
-  // Commented out since handled in js, which takes the best fit.
-  // assertTrue(%HasFastDoubleElements(a3r));
-  assertTrue(%HasFastSmiElements(a3r));
+  assertTrue(%HasFastDoubleElements(a3r));
   assertTrue(%HasFastDoubleElements(a3));
   assertEquals([], a3r);
   assertEquals([2.1, 1, 2, 3], a3);
@@ -206,7 +200,6 @@ function array_natives_test() {
   assertTrue(%HasFastDoubleElements(a3));
   assertEquals([1], a3r);
   assertEquals([2.2, 2, 3], a3);
-
   a3 = [{},2,3];
   a3r = a3.splice(0, 0);
   assertTrue(%HasFastObjectElements(a3r));
@@ -231,7 +224,6 @@ function array_natives_test() {
   assertTrue(%HasFastObjectElements(a3));
   assertEquals([1], a3r);
   assertEquals([{}, 2, 3], a3);
-
   a3 = [1.1,2,3];
   a3r = a3.splice(0, 0, {});
   assertTrue(%HasFastObjectElements(a3r));
@@ -244,6 +236,19 @@ function array_natives_test() {
   assertTrue(%HasFastObjectElements(a3));
   assertEquals([1.1], a3r);
   assertEquals([{}, 2, 3], a3);
+  a3 = [1.1, 2.2, 3.3];
+  a3r = a3.splice(2, 1);
+  assertTrue(%HasFastDoubleElements(a3r));
+  assertTrue(%HasFastDoubleElements(a3));
+  assertEquals([3.3], a3r);
+  //assertTrue(%HasFastDoubleElements(a3r));
+  assertEquals([1.1, 2.2], a3);
+  //assertTrue(%HasFastDoubleElements(a3r));
+  a3r = a3.splice(1, 1, 4.4, 5.5);
+  //assertTrue(%HasFastDoubleElements(a3r));
+  //assertTrue(%HasFastDoubleElements(a3));
+  assertEquals([2.2], a3r);
+  assertEquals([1.1, 4.4, 5.5], a3);
 
   // Pop
   var a4 = [1,2,3];