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Mojo struct

PhaseStep

struct PhaseStep

One step in a phase recipe.

Specifies what to emit: either infrastructure ops (BARRIER, FENCE) or data ops matched from the body by role and predicates (EMIT).

Fields

action (PhaseAction): Action type for this step (EMIT, BARRIER, or FENCE).
match_role (OpRole): For EMIT steps: required OpRole of the body op to match.
match_subtile (Int): For EMIT steps: -1 = any, else a specific subtile value.
exclude_lc (Bool): For EMIT steps: skip loop-carried ops (subtile == lc.selector).
match_lc_only (Bool): For EMIT steps: emit only loop-carried ops.
match_all (Bool): For EMIT steps: emit all matching ops (True) or first match only (False).

static def emit(role: OpRole, *, subtile: Int = Int(-1), exclude_lc: Bool = False, match_lc_only: Bool = False, match_all: Bool = False) -> Self

Emit body ops matching the given role and predicates.

static def barrier() -> Self

Emit an s_barrier infrastructure op.

static def fence() -> Self

Emit a schedule_barrier fence infrastructure op.