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C++ TypeLowering::isTrivial方法代码示例

本文整理汇总了C++中TypeLowering::isTrivial方法的典型用法代码示例。如果您正苦于以下问题:C++ TypeLowering::isTrivial方法的具体用法?C++ TypeLowering::isTrivial怎么用?C++ TypeLowering::isTrivial使用的例子?那么恭喜您, 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TypeLowering的用法示例。


在下文中一共展示了TypeLowering::isTrivial方法的3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: formalAccessBufferForExpr

ManagedValue SILGenBuilder::formalAccessBufferForExpr(
    SILLocation loc, SILType ty, const TypeLowering &lowering,
    SGFContext context, llvm::function_ref<void(SILValue)> rvalueEmitter) {
  // If we have a single-buffer "emit into" initialization, use that for the
  // result.
  SILValue address = context.getAddressForInPlaceInitialization(SGF, loc);

  // If we couldn't emit into the Initialization, emit into a temporary
  // allocation.
  if (!address) {
    address = SGF.emitTemporaryAllocation(loc, ty.getObjectType());
  }

  rvalueEmitter(address);

  // If we have a single-buffer "emit into" initialization, use that for the
  // result.
  if (context.finishInPlaceInitialization(SGF)) {
    return ManagedValue::forInContext();
  }

  // Add a cleanup for the temporary we allocated.
  if (lowering.isTrivial())
    return ManagedValue::forUnmanaged(address);

  return SGF.emitFormalAccessManagedBufferWithCleanup(loc, address);
}
开发者ID:danielmartin,项目名称:swift,代码行数:27,代码来源:SILGenBuilder.cpp

示例2: createLoadTake

ManagedValue SILGenBuilder::createLoadTake(SILLocation loc, ManagedValue v,
                                           const TypeLowering &lowering) {
  assert(lowering.getLoweredType().getAddressType() == v.getType());
  SILValue result =
      lowering.emitLoadOfCopy(*this, loc, v.forward(SGF), IsTake);
  if (lowering.isTrivial())
    return ManagedValue::forUnmanaged(result);
  assert(!lowering.isAddressOnly() && "cannot retain an unloadable type");
  return SGF.emitManagedRValueWithCleanup(result, lowering);
}
开发者ID:danielmartin,项目名称:swift,代码行数:10,代码来源:SILGenBuilder.cpp

示例3: createCopyValue

ManagedValue SILGenBuilder::createCopyValue(SILLocation loc,
                                            ManagedValue originalValue,
                                            const TypeLowering &lowering) {
  if (lowering.isTrivial())
    return originalValue;

  SILType ty = originalValue.getType();
  assert(!ty.isAddress() && "Can not perform a copy value of an address typed "
         "value");

  if (ty.isObject() &&
      originalValue.getOwnershipKind() == ValueOwnershipKind::Any) {
    return originalValue;
  }

  SILValue result =
      lowering.emitCopyValue(*this, loc, originalValue.getValue());
  return SGF.emitManagedRValueWithCleanup(result, lowering);
}
开发者ID:danielmartin,项目名称:swift,代码行数:19,代码来源:SILGenBuilder.cpp


注:本文中的TypeLowering::isTrivial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。