pub const PARAM_SLOT_MARKER: u32 = 0x4000_0000;Expand description
Sentinel value used to encode parameter slots in AIR instructions.
When a slot value is >= this marker, it indicates a parameter slot rather than
a local variable slot. The actual parameter index is slot - PARAM_SLOT_MARKER.
This allows sema to emit Store/Load instructions for parameters without knowing the total number of locals at analysis time.