Module rustc_middle::mir::interpret::allocation::init_mask

Structs

InitChunkIter

Yields InitChunks. See InitMask::range_as_init_chunks.

InitCopy

Run-length encoding of the uninit mask. Used to copy parts of a mask multiple times to another allocation.

InitMask

A bitmask where each bit refers to the byte with the same index. If the bit is true, the byte is initialized. If it is false the byte is uninitialized.

Enums

InitChunk

A contiguous chunk of initialized or uninitialized memory.

Constants

MAX_BLOCKS_LEN 🔒

MAX_BLOCKS_TO_HASH 🔒

Functions

find_bit_fast 🔒

A fast implementation of find_bit, which skips over an entire block at a time if it’s all 0s (resp. 1s), and finds the first 1 (resp. 0) bit inside a block using trailing_zeros instead of a loop.

find_bit_slow 🔒

search_block 🔒

Search one block, returning the index of the first bit equal to is_init.

Type Definitions

Block 🔒