Enum MemLowerError 

pub enum MemLowerError {
    UnmappedValue(Value),
    UnsupportedType(String),
    SsaOverflow,
}

Errors produced by the memory-family lowering.

Variants

UnmappedValue(Value)

The Cranelift base-pointer value referenced by a load/store has no corresponding LoweredValueId in MemLowerContext::value_map. The caller must populate the value map before invoking this family — typically by lowering the producer instruction first or by seeding entry-block params.

UnsupportedType(String)

The Cranelift type on a load result or store operand could not be mapped to a LoweredType (e.g. an unsupported vector shape). The mnemonic of the offending Cranelift type is captured for triage.

SsaOverflow

The SSA value-id counter overflowed u32::MAX (a single function exceeded ~4 billion lowered values).

jit LOW fix (finding 7): fresh_id previously used wrapping_add, which silently wrapped the counter back to 0 on overflow — aliasing new SSA values onto already-used ids and miscompiling the function. It now uses checked_add(1) and surfaces this structured error instead, matching the lower_arith family’s fail-closed posture.

Trait Implementations

impl Debug for MemLowerError

fn fmt(&self, f: &mut Formatter<'_>) -> Result

Formats the value using the given formatter.

impl Display for MemLowerError

fn fmt(&self, __formatter: &mut Formatter<'_>) -> Result

Formats the value using the given formatter.

impl Eq for MemLowerError

impl Error for MemLowerError

fn source(&self) -> Option<&(dyn Error + 'static)>

Returns the lower-level source of this error, if any.

fn description(&self) -> &str

👎Deprecated since 1.42.0:

use the Display impl or to_string()

fn cause(&self) -> Option<&dyn Error>

👎Deprecated since 1.33.0:

replaced by Error::source, which can support downcasting

fn provide<'a>(&'a self, request: &mut Request<'a>)

🔬This is a nightly-only experimental API. (error_generic_member_access)

Provides type-based access to context intended for error reports.

impl PartialEq for MemLowerError

fn eq(&self, other: &MemLowerError) -> bool

Tests for self and other values to be equal, and is used by ==.

fn ne(&self, other: &Rhs) -> bool

Tests for !=. The default implementation is almost always sufficient, and should not be overridden without very good reason.

impl StructuralPartialEq for MemLowerError