unsigned getMaxNumVGPRs(const MCSubtargetInfo *STI, unsigned WavesPerEU) {
assert(WavesPerEU != 0);
unsigned MaxNumVGPRs = alignDown(getTotalNumVGPRs(STI) / WavesPerEU,
getVGPRAllocGranule(STI));
unsigned AddressableNumVGPRs = getAddressableNumVGPRs(STI);
return std::min(MaxNumVGPRs, AddressableNumVGPRs);
}
unsigned getMaxNumVGPRs(const FeatureBitset &Features, unsigned WavesPerEU) {
assert(WavesPerEU != 0);
unsigned MaxNumVGPRs = alignDown(getTotalNumVGPRs(Features) / WavesPerEU,
getVGPRAllocGranule(Features));
unsigned AddressableNumVGPRs = getAddressableNumVGPRs(Features);
return std::min(MaxNumVGPRs, AddressableNumVGPRs);
}
unsigned getMinNumVGPRs(const MCSubtargetInfo *STI, unsigned WavesPerEU) {
assert(WavesPerEU != 0);
if (WavesPerEU >= getMaxWavesPerEU())
return 0;
unsigned MinNumVGPRs =
alignDown(getTotalNumVGPRs(STI) / (WavesPerEU + 1),
getVGPRAllocGranule(STI)) + 1;
return std::min(MinNumVGPRs, getAddressableNumVGPRs(STI));
}
unsigned getMinNumVGPRs(const FeatureBitset &Features, unsigned WavesPerEU) {
assert(WavesPerEU != 0);
if (WavesPerEU >= getMaxWavesPerEU(Features))
return 0;
unsigned MinNumVGPRs =
alignDown(getTotalNumVGPRs(Features) / (WavesPerEU + 1),
getVGPRAllocGranule(Features)) + 1;
return std::min(MinNumVGPRs, getAddressableNumVGPRs(Features));
}
unsigned getAddressableNumVGPRs(const MCSubtargetInfo *STI) {
return getTotalNumVGPRs(STI);
}
unsigned getAddressableNumVGPRs(const FeatureBitset &Features) {
return getTotalNumVGPRs(Features);
}