v8/test/mjsunit/ignition/regress-612386-smi-to-double-transition.js
rmcilroy 471893ccec [Interpreter] Fix GenerateSmiToDouble to avoid assuming it is called from a JSFrame.
GenerateSmiToDouble on ia32 assumes that it is called from a JSFrame and can restore
the context from the StandardFrameConstants::kContextObject. In the case of the
interpreter it is called from a interpreter handler stub frame which doesn't
push the context onto it's frame. Instead, push and pop esi to explicitly restore it
correctly.

BUG=chromium:612386

Review-Url: https://codereview.chromium.org/2011313003
Cr-Commit-Position: refs/heads/master@{#36649}
2016-06-01 14:49:00 +00:00

30 lines
699 B
JavaScript

// Copyright 2016 the V8 project authors. All rights reserved.
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.
// Flags: --no-inline-new
function keyed_store(obj, key, value) {
obj[key] = value;
}
function foo() {
obj = {};
obj.smi = 1;
obj.dbl = 1.5;
obj.obj = {a:1};
// Transition keyed store IC to polymorphic.
keyed_store(obj, "smi", 100);
keyed_store(obj, "dbl", 100);
keyed_store(obj, "obj", 100);
// Now call with a FAST_SMI_ELEMENTS object.
var smi_array = [5, 1, 1];
keyed_store(smi_array, 1, 6);
// Transition from FAST_SMI_ELEMENTS to FAST_DOUBLE_ELEMENTS.
keyed_store(smi_array, 2, 1.2);
}
foo();