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In ScheduleOptimizer::isTileableBand(), allow the case in which the band node's child is an isl_schedule_sequence_node and its grandchildren isl_schedule_leaf_nodes. This case can arise when two or more statements are fused by the isl scheduler. The tile_after_fusion.ll test has two statements in separate loop nests and checks whether they are tiled after being fused when polly-opt-fusion equals "max". Reviewers: grosser Subscribers: gareevroman, pollydev Tags: #polly Contributed-by: Theodoros Theodoridis <theodort@student.ethz.ch> Differential Revision: https://reviews.llvm.org/D30815 llvm-svn: 297587