本文整理汇总了C++中MipsFunctionInfo::createISRRegFI方法的典型用法代码示例。如果您正苦于以下问题：C++ MipsFunctionInfo::createISRRegFI方法的具体用法？C++ MipsFunctionInfo::createISRRegFI怎么用？C++ MipsFunctionInfo::createISRRegFI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MipsFunctionInfo的用法示例。
在下文中一共展示了MipsFunctionInfo::createISRRegFI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: determineCalleeSaves
void MipsSEFrameLowering::determineCalleeSaves(MachineFunction &MF,
BitVector &SavedRegs,
RegScavenger *RS) const {
TargetFrameLowering::determineCalleeSaves(MF, SavedRegs, RS);
MipsFunctionInfo *MipsFI = MF.getInfo<MipsFunctionInfo>();
MipsABIInfo ABI = STI.getABI();
unsigned FP = ABI.GetFramePtr();
unsigned BP = ABI.IsN64() ? Mips::S7_64 : Mips::S7;
// Mark $fp as used if function has dedicated frame pointer.
if (hasFP(MF))
setAliasRegs(MF, SavedRegs, FP);
// Mark $s7 as used if function has dedicated base pointer.
if (hasBP(MF))
setAliasRegs(MF, SavedRegs, BP);
// Create spill slots for eh data registers if function calls eh_return.
if (MipsFI->callsEhReturn())
MipsFI->createEhDataRegsFI();
// Create spill slots for Coprocessor 0 registers if function is an ISR.
if (MipsFI->isISR())
MipsFI->createISRRegFI();
// Expand pseudo instructions which load, store or copy accumulators.
// Add an emergency spill slot if a pseudo was expanded.
if (ExpandPseudo(MF).expand()) {
// The spill slot should be half the size of the accumulator. If target is
// mips64, it should be 64-bit, otherwise it should be 32-bt.
const TargetRegisterClass *RC = STI.hasMips64() ?
&Mips::GPR64RegClass : &Mips::GPR32RegClass;
int FI = MF.getFrameInfo()->CreateStackObject(RC->getSize(),
RC->getAlignment(), false);
RS->addScavengingFrameIndex(FI);
}
// Set scavenging frame index if necessary.
uint64_t MaxSPOffset = MF.getInfo<MipsFunctionInfo>()->getIncomingArgSize() +
estimateStackSize(MF);
if (isInt<16>(MaxSPOffset))
return;
const TargetRegisterClass *RC =
ABI.ArePtrs64bit() ? &Mips::GPR64RegClass : &Mips::GPR32RegClass;
int FI = MF.getFrameInfo()->CreateStackObject(RC->getSize(),
RC->getAlignment(), false);
RS->addScavengingFrameIndex(FI);
}