/// feature, set it.
///
static
-void SetImpliedBits(FeatureBitset &Bits, const SubtargetFeatureKV *FeatureEntry,
+void SetImpliedBits(uint64_t &Bits, const SubtargetFeatureKV *FeatureEntry,
ArrayRef<SubtargetFeatureKV> FeatureTable) {
for (auto &FE : FeatureTable) {
if (FeatureEntry->Value == FE.Value) continue;
- if ((FeatureEntry->Implies & FE.Value).any()) {
+ if (FeatureEntry->Implies & FE.Value) {
Bits |= FE.Value;
SetImpliedBits(Bits, &FE, FeatureTable);
}
/// feature, clear it.
///
static
-void ClearImpliedBits(FeatureBitset &Bits,
- const SubtargetFeatureKV *FeatureEntry,
+void ClearImpliedBits(uint64_t &Bits, const SubtargetFeatureKV *FeatureEntry,
ArrayRef<SubtargetFeatureKV> FeatureTable) {
for (auto &FE : FeatureTable) {
if (FeatureEntry->Value == FE.Value) continue;
- if ((FE.Implies & FeatureEntry->Value).any()) {
+ if (FE.Implies & FeatureEntry->Value) {
Bits &= ~FE.Value;
ClearImpliedBits(Bits, &FE, FeatureTable);
}
/// ToggleFeature - Toggle a feature and returns the newly updated feature
/// bits.
-FeatureBitset
-SubtargetFeatures::ToggleFeature(FeatureBitset Bits, StringRef Feature,
+uint64_t
+SubtargetFeatures::ToggleFeature(uint64_t Bits, StringRef Feature,
ArrayRef<SubtargetFeatureKV> FeatureTable) {
// Find feature in table.
if (FeatureEntry) {
if ((Bits & FeatureEntry->Value) == FeatureEntry->Value) {
Bits &= ~FeatureEntry->Value;
+
// For each feature that implies this, clear it.
ClearImpliedBits(Bits, FeatureEntry, FeatureTable);
} else {
/// getFeatureBits - Get feature bits a CPU.
///
-FeatureBitset
+uint64_t
SubtargetFeatures::getFeatureBits(StringRef CPU,
ArrayRef<SubtargetFeatureKV> CPUTable,
ArrayRef<SubtargetFeatureKV> FeatureTable) {
if (CPUTable.empty() || FeatureTable.empty())
- return FeatureBitset();
+ return 0;
#ifndef NDEBUG
for (size_t i = 1, e = CPUTable.size(); i != e; ++i) {
"CPU features table is not sorted");
}
#endif
- // Resulting bits
- FeatureBitset Bits;
+ uint64_t Bits = 0; // Resulting bits
// Check if help is needed
if (CPU == "help")
// Set the feature implied by this CPU feature, if any.
for (auto &FE : FeatureTable) {
- if ((CPUEntry->Value & FE.Value).any())
+ if (CPUEntry->Value & FE.Value)
SetImpliedBits(Bits, &FE, FeatureTable);
}
} else {