v8/test/mjsunit/compiler/truncating-store-deopt.js

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// Copyright 2015 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: --allow-natives-syntax
function g(a, b, c) {
return a + b + c;
}
var asm = (function Module(global, env, buffer) {
"use asm";
var i32 = new global.Int32Array(buffer);
// This is not valid asm.js, but we should still generate correct code.
function store(x) {
return g(1, i32[0] = x, 2);
}
return { store: store };
})({
"Int32Array": Int32Array
}, {}, new ArrayBuffer(64 * 1024));
var o = { toString : function() { %DeoptimizeFunction(asm.store); return "1"; } }
asm.store(o);