Introduce placement pass

[yenjames]

Note: This PR is responsible for CI testing for #2899 too
Currently breaking tests with trace support because logicalTileOp has no mapping for trace operations yet

Summary

This PR implements the --aie-place-tiles pass with sequential placer algorithm, completing logical-to-physical tile mapping.

Changes

• New pass definition that can be extended with other placer algorithm.
• Follows structure similar to AIEPathfinder pass.
• Placement pass happens first in aiecc.

Limitation

• IRON pipeline now reports validation like DMA channel usage after MLIR is generated, may be difficult to match to IRON object created by user. Suggestion: add the same validation in IRON.
• Inheriting placer from IRON means this current placer cannot handle devices with ShimPL tiles.

[github-actions]

Coverage Report

Created: 2026-02-27 22:43

Click here for information about interpreting this report.

Filename	Function Coverage	Line Coverage	Region Coverage	Branch Coverage
include/aie/Dialect/AIE/Transforms/AIEPasses.h	100.00%	100.00%	100.00%	-
include/aie/Dialect/AIE/Transforms/AIEPlacer.h	57.14%	57.14%	66.67%	-
lib/Conversion/AIEVecToLLVM/AIEVecToLLVM.cpp	93.68%	85.50%	81.49%	67.32%
lib/Dialect/AIE/IR/AIEDialect.cpp	90.78%	86.53%	87.58%	79.39%
lib/Dialect/AIE/Transforms/AIEAssignBuffers.cpp	96.30%	88.06%	89.42%	82.84%
lib/Dialect/AIE/Transforms/AIECoreToStandard.cpp	96.67%	88.12%	83.84%	75.78%
lib/Dialect/AIE/Transforms/AIEPlaceTiles.cpp	100.00%	81.58%	80.95%	60.00%
lib/Dialect/AIE/Transforms/AIEPlacer.cpp	100.00%	94.41%	92.36%	85.29%
lib/Dialect/AIEVec/IR/AIEVecOps.cpp	93.06%	74.49%	73.00%	57.55%
lib/Dialect/AIEVec/Transforms/VectorToAIEVecConversions.cpp	77.27%	69.71%	59.29%	47.44%
lib/Dialect/AIEX/Transforms/AIEDMATasksToNPU.cpp	95.45%	86.19%	90.50%	79.89%
Totals	88.12%	80.11%	75.45%	63.71%

Generated by llvm-cov -- llvm version 18.1.3