SMI checks for receiver in KeyedLoad/Store (done right this time)

test/mjsunit/fast-element-smi-check.js

Index: test/mjsunit/fast-element-smi-check.js
diff --git a/test/mjsunit/fast-element-smi-check.js b/test/mjsunit/fast-element-smi-check.js
new file mode 100644
index 0000000000000000000000000000000000000000..d0c45fe629118607e6495436ca26b1cf39347db1
--- /dev/null
+++ b/test/mjsunit/fast-element-smi-check.js
@@ -0,0 +1,70 @@
+// Copyright 2011 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
+//       with the distribution.
+//     * Neither the name of Google Inc. nor the names of its
+//       contributors may be used to endorse or promote products derived
+//       from this software without specific prior written permission.
+//
+// THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+// "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+// LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
+// A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
+// OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
+// SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
+// LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
+// DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
+// THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+// (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
+// OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+
+// Flags: --allow-natives-syntax --expose-gc
+
+var a = new Array(10);
+
+function test_load_set_smi(a) {
+  return a[0] = a[0] = 1;
+}
+
+test_load_set_smi(a);
+test_load_set_smi(a);
+test_load_set_smi(123);
+
+function test_load_set_smi_2(a) {
+  return a[0] = a[0] = 1;
+}
+
+test_load_set_smi_2(a);
+%OptimizeFunctionOnNextCall(test_load_set_smi_2);
+test_load_set_smi_2(a);
+test_load_set_smi_2(0);
+%DeoptimizeFunction(test_load_set_smi_2);
+gc();  // Makes V8 forget about type information for test_load_set_smi.
+
+var b = new Object();
+
+function test_load_set_smi_3(b) {
+  return b[0] = b[0] = 1;
+}
+
+test_load_set_smi_3(b);
+test_load_set_smi_3(b);
+test_load_set_smi_3(123);
+
+function test_load_set_smi_4(b) {
+  return b[0] = b[0] = 1;
+}
+
+test_load_set_smi_4(b);
+%OptimizeFunctionOnNextCall(test_load_set_smi_4);
+test_load_set_smi_4(b);
+test_load_set_smi_4(0);
+%DeoptimizeFunction(test_load_set_smi_4);
+gc();  // Makes V8 forget about type information for test_load_set_smi.