Restore saved caller FP registers on stub failure

test/mjsunit/regress/regress-clobbered-fp-regs.js

 // 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
 
-// Tests that we always return the same type error function when trying to
-// access strict mode caller and callee.
-
-function foo() {
-  'use strict';
-  return arguments;
+function store(a, x, y) {
+  var f1 = 0.1 * y;
+  var f2 = 0.2 * y;
+  var f3 = 0.3 * y;
+  var f4 = 0.4 * y;
+  var f5 = 0.5 * y;
+  var f6 = 0.6 * y;
+  var f7 = 0.7 * y;
+  var f8 = 0.8 * y;
+  a[0] = x;
+  var sum = (f1 + f2 + f3 + f4 + f5 + f6 + f7 + f8);
+  assertEquals(1, y);
+  var expected = 3.6;
+  if (Math.abs(expected - sum) > 0.01) {
+    assertEquals(expected, sum);
+  }
 }
 
-var get1 = Object.getOwnPropertyDescriptor(foo(), "caller").get;
-var get2 = Object.getOwnPropertyDescriptor(foo(), "callee").get;
-assertEquals(get1, get2);
+// Generate TransitionElementsKindStub.
+store([1], 1, 1);
+store([1], 1.1, 1);
+store([1], 1.1, 1);
+%OptimizeFunctionOnNextCall(store);
+// This will trap on allocation site in TransitionElementsKindStub.
+store([1], 1, 1)