当前位置: 首页>>代码示例>>C++>>正文


C++ LPhi::setBlock方法代码示例

本文整理汇总了C++中LPhi::setBlock方法的典型用法代码示例。如果您正苦于以下问题:C++ LPhi::setBlock方法的具体用法?C++ LPhi::setBlock怎么用?C++ LPhi::setBlock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LPhi的用法示例。


在下文中一共展示了LPhi::setBlock方法的2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: switch

bool
LBlock::init(TempAllocator& alloc)
{
    // Count the number of LPhis we'll need.
    size_t numLPhis = 0;
    for (MPhiIterator i(block_->phisBegin()), e(block_->phisEnd()); i != e; ++i) {
        MPhi* phi = *i;
        switch (phi->type()) {
          case MIRType::Value: numLPhis += BOX_PIECES; break;
          case MIRType::Int64: numLPhis += INT64_PIECES; break;
          default: numLPhis += 1; break;
        }
    }

    // Allocate space for the LPhis.
    if (!phis_.init(alloc, numLPhis))
        return false;

    // For each MIR phi, set up LIR phis as appropriate. We'll fill in their
    // operands on each incoming edge, and set their definitions at the start of
    // their defining block.
    size_t phiIndex = 0;
    size_t numPreds = block_->numPredecessors();
    for (MPhiIterator i(block_->phisBegin()), e(block_->phisEnd()); i != e; ++i) {
        MPhi* phi = *i;
        MOZ_ASSERT(phi->numOperands() == numPreds);

        int numPhis;
        switch (phi->type()) {
          case MIRType::Value: numPhis = BOX_PIECES; break;
          case MIRType::Int64: numPhis = INT64_PIECES; break;
          default: numPhis = 1; break;
        }
        for (int i = 0; i < numPhis; i++) {
            LAllocation* inputs = alloc.allocateArray<LAllocation>(numPreds);
            if (!inputs)
                return false;

            void* addr = &phis_[phiIndex++];
            LPhi* lphi = new (addr) LPhi(phi, inputs);
            lphi->setBlock(this);
        }
    }
    return true;
}
开发者ID:Wafflespeanut,项目名称:gecko-dev,代码行数:45,代码来源:LIR.cpp

示例2: new

bool
LBlock::init(TempAllocator& alloc)
{
    // Count the number of LPhis we'll need.
    size_t numLPhis = 0;
    for (MPhiIterator i(block_->phisBegin()), e(block_->phisEnd()); i != e; ++i) {
        MPhi* phi = *i;
        numLPhis += (phi->type() == MIRType_Value) ? BOX_PIECES : 1;
    }

    // Allocate space for the LPhis.
    if (!phis_.init(alloc, numLPhis))
        return false;

    // For each MIR phi, set up LIR phis as appropriate. We'll fill in their
    // operands on each incoming edge, and set their definitions at the start of
    // their defining block.
    size_t phiIndex = 0;
    size_t numPreds = block_->numPredecessors();
    for (MPhiIterator i(block_->phisBegin()), e(block_->phisEnd()); i != e; ++i) {
        MPhi* phi = *i;
        MOZ_ASSERT(phi->numOperands() == numPreds);

        int numPhis = (phi->type() == MIRType_Value) ? BOX_PIECES : 1;
        for (int i = 0; i < numPhis; i++) {
            void* array = alloc.allocateArray<sizeof(LAllocation)>(numPreds);
            LAllocation* inputs = static_cast<LAllocation*>(array);
            if (!inputs)
                return false;

            // MSVC 2015 cannot handle "new (&phis_[phiIndex++])"
            void* addr = &phis_[phiIndex++];
            LPhi* lphi = new (addr) LPhi(phi, inputs);
            lphi->setBlock(this);
        }
    }
    return true;
}
开发者ID:dadaa,项目名称:gecko-dev,代码行数:38,代码来源:LIR.cpp


注:本文中的LPhi::setBlock方法示例由纯净天空整理自Github/MSDocs等开源代码及文档管理平台,相关代码片段筛选自各路编程大神贡献的开源项目,源码版权归原作者所有,传播和使用请参考对应项目的License;未经允许,请勿转载。