Module cranelift_codegen::ir::constant
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Constants
The constant pool defined here allows Cranelift to avoid emitting the same constant multiple times. As constants are inserted in the pool, a handle is returned; the handle is a Cranelift Entity. Inserting the same data multiple times will always return the same handle.
Future work could include:
- ensuring alignment of constants within the pool,
- bucketing constants by size.
Structs
This type describes the actual constant data. Note that the bytes stored in this structure are expected to be in little-endian order; this is due to ease-of-use when interacting with WebAssembly values, which are little-endian by design.
Maintains the mapping between a constant handle (i.e. Constant) and
its constant data (i.e. ConstantData).
Inner type for storing data and offset together in the constant pool. The offset is optional
because it must be set relative to the function code size (i.e. constants are emitted after the
function body); because the function is not yet compiled when constants are inserted,
set_offset must be called once a constant’s offset
from the beginning of the function is known (see
relaxation in relaxation.rs).
Type Definitions
This type describes an offset in bytes within a constant pool.