本文整理汇总了C++中LoadSDNode::getLoadedVT方法的典型用法代码示例。如果您正苦于以下问题：C++ LoadSDNode::getLoadedVT方法的具体用法？C++ LoadSDNode::getLoadedVT怎么用？C++ LoadSDNode::getLoadedVT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类LoadSDNode的用法示例。
在下文中一共展示了LoadSDNode::getLoadedVT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: SelectDIV
//.........这里部分代码省略.........
CurDAG->getRegister(IA64::r1, MVT::i64), CPI);
}
case ISD::GlobalAddress: {
GlobalValue *GV = cast<GlobalAddressSDNode>(N)->getGlobal();
SDOperand GA = CurDAG->getTargetGlobalAddress(GV, MVT::i64);
SDOperand Tmp =
SDOperand(CurDAG->getTargetNode(IA64::ADDL_GA, MVT::i64,
CurDAG->getRegister(IA64::r1,
MVT::i64), GA), 0);
return CurDAG->getTargetNode(IA64::LD8, MVT::i64, Tmp);
}
/* XXX
case ISD::ExternalSymbol: {
SDOperand EA = CurDAG->getTargetExternalSymbol(
cast<ExternalSymbolSDNode>(N)->getSymbol(),
MVT::i64);
SDOperand Tmp = CurDAG->getTargetNode(IA64::ADDL_EA, MVT::i64,
CurDAG->getRegister(IA64::r1,
MVT::i64),
EA);
return CurDAG->getTargetNode(IA64::LD8, MVT::i64, Tmp);
}
*/
case ISD::LOAD: { // FIXME: load -1, not 1, for bools?
LoadSDNode *LD = cast<LoadSDNode>(N);
SDOperand Chain = LD->getChain();
SDOperand Address = LD->getBasePtr();
AddToISelQueue(Chain);
AddToISelQueue(Address);
MVT::ValueType TypeBeingLoaded = LD->getLoadedVT();
unsigned Opc;
switch (TypeBeingLoaded) {
default:
#ifndef NDEBUG
N->dump();
#endif
assert(0 && "Cannot load this type!");
case MVT::i1: { // this is a bool
Opc = IA64::LD1; // first we load a byte, then compare for != 0
if(N->getValueType(0) == MVT::i1) { // XXX: early exit!
return CurDAG->SelectNodeTo(N, IA64::CMPNE, MVT::i1, MVT::Other,
SDOperand(CurDAG->getTargetNode(Opc, MVT::i64, Address), 0),
CurDAG->getRegister(IA64::r0, MVT::i64),
Chain);
}
/* otherwise, we want to load a bool into something bigger: LD1
will do that for us, so we just fall through */
}
case MVT::i8: Opc = IA64::LD1; break;
case MVT::i16: Opc = IA64::LD2; break;
case MVT::i32: Opc = IA64::LD4; break;
case MVT::i64: Opc = IA64::LD8; break;
case MVT::f32: Opc = IA64::LDF4; break;
case MVT::f64: Opc = IA64::LDF8; break;
}
// TODO: comment this
return CurDAG->SelectNodeTo(N, Opc, N->getValueType(0), MVT::Other,
Address, Chain);
}