16     fn index(&self, class: RegClass) -> &Self::Output {  in index()
17         match class {  in index()
26     fn index_mut(&mut self, class: RegClass) -> &mut Self::Output {  in index_mut()
27         match class {  in index_mut()
38     class: RegClass,  field
56             class: RegClass::Int,  in int()
68             class: RegClass::Float,  in float()
79         debug_assert!(gpr.class == RegClass::Int);  in new()
80         debug_assert!(fpr.class == RegClass::Float);  in new()
87     pub fn reg_for_class(&mut self, class: RegClass) -> Option<Reg> {  in reg_for_class()
88         self.available(class).then(|| {  in reg_for_class()
89             let bitset = &self[class];  in reg_for_class()
91             self.allocate(class, index.into());  in reg_for_class()
92             Reg::from(class, index as usize)  in reg_for_class()
100             self.allocate(reg.class(), index.try_into().unwrap());  in reg()
108         let bitset = &self[reg.class()];  in free()
112         if !self.is_non_allocatable(reg.class(), index) {  in free()
113             self[reg.class()].allocatable |= 1 << index;  in free()
119         let bitset = &self[reg.class()];  in named_reg_available()
124             || self.is_non_allocatable(reg.class(), reg.hw_enc().try_into().unwrap())  in named_reg_available()
127     fn available(&self, class: RegClass) -> bool {  in available()
128         let bitset = &self[class];  in available()
132     fn allocate(&mut self, class: RegClass, index: u64) {  in allocate()
133         if !self.is_non_allocatable(class, index) {  in allocate()
134             self[class].allocatable &= !(1 << index);  in allocate()
138     fn is_non_allocatable(&self, class: RegClass, index: u64) -> bool {  in is_non_allocatable()
139         let bitset = &self[class];  in is_non_allocatable()