diff options
| -rw-r--r-- | compiler/rustc_middle/src/mir/interpret/allocation/init_mask.rs | 44 |
1 files changed, 22 insertions, 22 deletions
diff --git a/compiler/rustc_middle/src/mir/interpret/allocation/init_mask.rs b/compiler/rustc_middle/src/mir/interpret/allocation/init_mask.rs index 3f7e2523106..312fecea5da 100644 --- a/compiler/rustc_middle/src/mir/interpret/allocation/init_mask.rs +++ b/compiler/rustc_middle/src/mir/interpret/allocation/init_mask.rs @@ -254,44 +254,44 @@ impl InitMaskMaterialized { } fn set_range_inbounds(&mut self, start: Size, end: Size, new_state: bool) { - let (blocka, bita) = Self::bit_index(start); - let (blockb, bitb) = Self::bit_index(end); - if blocka == blockb { - // First set all bits except the first `bita`, - // then unset the last `64 - bitb` bits. - let range = if bitb == 0 { - u64::MAX << bita + let (block_a, bit_a) = Self::bit_index(start); + let (block_b, bit_b) = Self::bit_index(end); + if block_a == block_b { + // First set all bits except the first `bit_a`, + // then unset the last `64 - bit_b` bits. + let range = if bit_b == 0 { + u64::MAX << bit_a } else { - (u64::MAX << bita) & (u64::MAX >> (64 - bitb)) + (u64::MAX << bit_a) & (u64::MAX >> (64 - bit_b)) }; if new_state { - self.blocks[blocka] |= range; + self.blocks[block_a] |= range; } else { - self.blocks[blocka] &= !range; + self.blocks[block_a] &= !range; } return; } // across block boundaries if new_state { - // Set `bita..64` to `1`. - self.blocks[blocka] |= u64::MAX << bita; - // Set `0..bitb` to `1`. - if bitb != 0 { - self.blocks[blockb] |= u64::MAX >> (64 - bitb); + // Set `bit_a..64` to `1`. + self.blocks[block_a] |= u64::MAX << bit_a; + // Set `0..bit_b` to `1`. + if bit_b != 0 { + self.blocks[block_b] |= u64::MAX >> (64 - bit_b); } // Fill in all the other blocks (much faster than one bit at a time). - for block in (blocka + 1)..blockb { + for block in (block_a + 1)..block_b { self.blocks[block] = u64::MAX; } } else { - // Set `bita..64` to `0`. - self.blocks[blocka] &= !(u64::MAX << bita); - // Set `0..bitb` to `0`. - if bitb != 0 { - self.blocks[blockb] &= !(u64::MAX >> (64 - bitb)); + // Set `bit_a..64` to `0`. + self.blocks[block_a] &= !(u64::MAX << bit_a); + // Set `0..bit_b` to `0`. + if bit_b != 0 { + self.blocks[block_b] &= !(u64::MAX >> (64 - bit_b)); } // Fill in all the other blocks (much faster than one bit at a time). - for block in (blocka + 1)..blockb { + for block in (block_a + 1)..block_b { self.blocks[block] = 0; } } |