harmony-scoping: Implement StoreIC handler for stores to global contexts.

test/cctest/test-decls.cc

 // Copyright 2007-2008 the V8 project authors. All rights reserved.
 // Redistribution and use in source and binary forms, with or without
 // modification, are permitted provided that the following conditions are
 // met:
 //
 //     * Redistributions of source code must retain the above copyright
 //       notice, this list of conditions and the following disclaimer.
 //     * Redistributions in binary form must reproduce the above
 //       copyright notice, this list of conditions and the following
 //       disclaimer in the documentation and/or other materials provided
@@ skipping 990 matching lines @@
         "'use strict';"
         "g(15);x",
         EXPECT_RESULT, Number::New(CcTest::isolate(), 15));
     context.Check("h({})", EXPECT_RESULT, number_string);
     context.Check("f({})", EXPECT_RESULT, Number::New(CcTest::isolate(), 15));
     context.Check("h({})", EXPECT_RESULT, number_string);
   }
 }
 
 
-TEST(CrossScriptICs) {
+TEST(CrossScriptLoadICs) {
   i::FLAG_harmony_scoping = true;
   i::FLAG_allow_natives_syntax = true;
 
   HandleScope handle_scope(CcTest::isolate());
 
   {
     SimpleContext context;
     context.Check(
         "x = 15;"
         "function f() { return x; }"
@@ skipping 33 matching lines @@
         "let x = 5;"
         "f()",
         EXPECT_RESULT, Number::New(CcTest::isolate(), 5));
     for (int k = 0; k < 3; k++) {
       context.Check("f()", EXPECT_RESULT, Number::New(CcTest::isolate(), 5));
     }
     context.Check("%OptimizeFunctionOnNextCall(f); f()", EXPECT_RESULT,
                   Number::New(CcTest::isolate(), 5));
   }
 }
+
+
+TEST(CrossScriptStoreICs) {
+  i::FLAG_harmony_scoping = true;
+  i::FLAG_allow_natives_syntax = true;
+
+  HandleScope handle_scope(CcTest::isolate());
+
+  {
+    SimpleContext context;
+    context.Check(
+        "var global = this;"
+        "x = 15;"
+        "function f(v) { x = v; }"
+        "function g(v) { x = v; }"
+        "f(10); x",
+        EXPECT_RESULT, Number::New(CcTest::isolate(), 10));
+    context.Check(
+        "'use strict';"
+        "let x = 5;"
+        "f(7); x",
+        EXPECT_RESULT, Number::New(CcTest::isolate(), 7));
+    context.Check("global.x", EXPECT_RESULT,
+                  Number::New(CcTest::isolate(), 10));
+    for (int k = 0; k < 3; k++) {
+      context.Check("g(31); x", EXPECT_RESULT,
+                    Number::New(CcTest::isolate(), 31));
+    }
+    context.Check("global.x", EXPECT_RESULT,
+                  Number::New(CcTest::isolate(), 10));
+    for (int k = 0; k < 3; k++) {
+      context.Check("f(32); x", EXPECT_RESULT,
+                    Number::New(CcTest::isolate(), 32));
+    }
+    context.Check("global.x", EXPECT_RESULT,
+                  Number::New(CcTest::isolate(), 10));
+    context.Check("%OptimizeFunctionOnNextCall(g); g(18); x", EXPECT_RESULT,
+                  Number::New(CcTest::isolate(), 18));
+    context.Check("global.x", EXPECT_RESULT,
+                  Number::New(CcTest::isolate(), 10));
+    context.Check("%OptimizeFunctionOnNextCall(f); f(33); x", EXPECT_RESULT,
+                  Number::New(CcTest::isolate(), 33));
+    context.Check("global.x", EXPECT_RESULT,
+                  Number::New(CcTest::isolate(), 10));
+  }
+  {
+    SimpleContext context;
+    context.Check(
+        "var global = this;"
+        "x = 15;"
+        "function f(v) { x = v; }"
+        "f(10); x",
+        EXPECT_RESULT, Number::New(CcTest::isolate(), 10));
+    for (int k = 0; k < 3; k++) {
+      context.Check("f(18); x", EXPECT_RESULT,
+                    Number::New(CcTest::isolate(), 18));
+    }
+    context.Check("%OptimizeFunctionOnNextCall(f); f(20); x", EXPECT_RESULT,
+                  Number::New(CcTest::isolate(), 20));
+    context.Check(
+        "'use strict';"
+        "let x = 5;"
+        "f(8); x",
+        EXPECT_RESULT, Number::New(CcTest::isolate(), 8));
+    context.Check("global.x", EXPECT_RESULT,
+                  Number::New(CcTest::isolate(), 20));
+    for (int k = 0; k < 3; k++) {
+      context.Check("f(13); x", EXPECT_RESULT,
+                    Number::New(CcTest::isolate(), 13));
+    }
+    context.Check("global.x", EXPECT_RESULT,
+                  Number::New(CcTest::isolate(), 20));
+    context.Check("%OptimizeFunctionOnNextCall(f); f(41); x", EXPECT_RESULT,
+                  Number::New(CcTest::isolate(), 41));
+    context.Check("global.x", EXPECT_RESULT,
+                  Number::New(CcTest::isolate(), 20));
+  }
+}