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C++ MDefinition::earlyAbortCheck方法代码示例

本文整理汇总了C++中MDefinition::earlyAbortCheck方法的典型用法代码示例。如果您正苦于以下问题:C++ MDefinition::earlyAbortCheck方法的具体用法?C++ MDefinition::earlyAbortCheck怎么用?C++ MDefinition::earlyAbortCheck使用的例子?那么, 这里精选的方法代码示例或许可以为您提供帮助。您也可以进一步了解该方法所在MDefinition的用法示例。


在下文中一共展示了MDefinition::earlyAbortCheck方法的1个代码示例,这些例子默认根据受欢迎程度排序。您可以为喜欢或者感觉有用的代码点赞,您的评价将有助于系统推荐出更棒的C++代码示例。

示例1: IonSpew

bool
RangeAnalysis::analyze()
{
    int numBlocks = 0;
    for (PostorderIterator i(graph_.poBegin()); i != graph_.poEnd(); i++) {
        numBlocks++;
        MBasicBlock *curBlock = *i;
        if (!curBlock->isLoopHeader())
            continue;
        for (MPhiIterator pi(curBlock->phisBegin()); pi != curBlock->phisEnd(); pi++)
            if (!pi->initCounts())
                return false;
    }

    IonSpew(IonSpew_Range, "Doing range propagation");
    MDefinitionVector worklist;

    for (ReversePostorderIterator block(graph_.rpoBegin()); block != graph_.rpoEnd(); block++) {
        for (MDefinitionIterator iter(*block); iter; iter++) {
            MDefinition *def = *iter;

            AddToWorklist(worklist, def);

        }
    }
    size_t iters = 0;

    while (!worklist.empty()) {
        MDefinition *def = PopFromWorklist(worklist);
        IonSpew(IonSpew_Range, "recomputing range on %d", def->id());
        SpewRange(def);
        if (!def->earlyAbortCheck() && def->recomputeRange()) {
            JS_ASSERT(def->range()->lower() <= def->range()->upper());
            IonSpew(IonSpew_Range, "Range changed; adding consumers");
            IonSpew(IonSpew_Range, "New range for %d is: (%d, %d)", def->id(), def->range()->lower(), def->range()->upper());
            for (MUseDefIterator use(def); use; use++) {
                if(!AddToWorklist(worklist, use.def()))
                    return false;
            }
        }
        iters++;
        if (iters >= numBlocks * 100)
            return false;
    }
    // Cleanup (in case we stopped due to MAX_ITERS)
    for(size_t i = 0; i < worklist.length(); i++)
        worklist[i]->setNotInWorklist();


#ifdef DEBUG
    for (ReversePostorderIterator block(graph_.rpoBegin()); block != graph_.rpoEnd(); block++) {
        for (MDefinitionIterator iter(*block); iter; iter++) {
            MDefinition *def = *iter;
            SpewRange(def);
            JS_ASSERT(def->range()->lower() <= def->range()->upper());
            JS_ASSERT(!def->isInWorklist());
        }
    }
#endif
    return true;
}
开发者ID:funkaster,项目名称:Spidermonkey-1,代码行数:61,代码来源:RangeAnalysis.cpp


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