Introduce graph IR layer to eliminate tombstoned operators#764

Draft

antiguru wants to merge 9 commits into

TimelyDataflow:masterfrom

antiguru:graph-ir-lowering

Commits on Mar 13, 2026

Fuse pipeline-connected operator chains in SubgraphBuilder::build()

antiguru
and
claude
committed
Fuse notify=true operators and add rounds parameter to event_driven

antiguru
and
claude
committed
Restrict chain fusion to notify=false operators with identity summaries

antiguru
and
claude
committed
Fix initial capability accounting and remove notify=true scaffolding

antiguru
and
claude
committed
Rename min_chain_length to fuse_chain_length and expose via getopts

antiguru
and
claude
committed
Check for pipeline pact instead of local in chain detection

antiguru
and
claude
committed
Generalize chain fusion to DAG subgraph fusion

antiguru
and
claude
committed
Document operator fusion in mdbook internals chapter

antiguru
and
claude
committed
Introduce graph IR layer to eliminate tombstoned operators

antiguru
and
claude
committed