static unsigned int
getCodeAddrSpace(MemSDNode *N, const NVPTXSubtarget &Subtarget)
{
const Value *Src = N->getSrcValue();
if (!Src)
return NVPTX::PTXLdStInstCode::LOCAL;
if (const PointerType *PT = dyn_cast<PointerType>(Src->getType())) {
switch (PT->getAddressSpace()) {
case llvm::ADDRESS_SPACE_LOCAL: return NVPTX::PTXLdStInstCode::LOCAL;
case llvm::ADDRESS_SPACE_GLOBAL: return NVPTX::PTXLdStInstCode::GLOBAL;
case llvm::ADDRESS_SPACE_SHARED: return NVPTX::PTXLdStInstCode::SHARED;
case llvm::ADDRESS_SPACE_CONST_NOT_GEN:
return NVPTX::PTXLdStInstCode::CONSTANT;
case llvm::ADDRESS_SPACE_GENERIC: return NVPTX::PTXLdStInstCode::GENERIC;
case llvm::ADDRESS_SPACE_PARAM: return NVPTX::PTXLdStInstCode::PARAM;
case llvm::ADDRESS_SPACE_CONST:
// If the arch supports generic address space, translate it to GLOBAL
// for correctness.
// If the arch does not support generic address space, then the arch
// does not really support ADDRESS_SPACE_CONST, translate it to
// to CONSTANT for better performance.
if (Subtarget.hasGenericLdSt())
return NVPTX::PTXLdStInstCode::GLOBAL;
else
return NVPTX::PTXLdStInstCode::CONSTANT;
default: break;
}
}
return NVPTX::PTXLdStInstCode::LOCAL;
}
static std::string computeDataLayout(const NVPTXSubtarget &ST) {
std::string Ret = "e";
if (!ST.is64Bit())
Ret += "-p:32:32";
Ret += "-i64:64-v16:16-v32:32-n16:32:64";
return Ret;
}
NVPTXRegisterInfo::NVPTXRegisterInfo(const NVPTXSubtarget &st)
: NVPTXGenRegisterInfo(0), Is64Bit(st.is64Bit()) {}
NVPTXFrameLowering::NVPTXFrameLowering(NVPTXSubtarget &STI)
: TargetFrameLowering(TargetFrameLowering::StackGrowsUp, 8, 0),
is64bit(STI.is64Bit()) {}