GitLab

[Refactor] Enhance MergeSharedMemoryAllocations Pass for Improved Liveness Analysis and Scope Management (#508)

* Introduced a new StmtAttr structure to track the scope level of statements, enhancing the liveness analysis process.
* Updated the UpdateStmtAttr function to manage statement attributes effectively during memory allocation visits.
* Modified the VisitStmt_ methods to utilize the new scope level tracking, ensuring accurate memory access patterns.
* Refactored the LivenessAnalysis and PlanMemory functions to incorporate statement attributes, improving the handling of gen and kill points in memory management.
* Added a new helper function allow_warp_specialized in phase.py to conditionally enable warp specialization based on pass context and target, addressing potential bugs in the MergeSharedMemoryAllocations pass.
* Enhanced the OptimizeForTarget function to conditionally apply the MergeSharedMemoryAllocations pass based on warp specialization settings, improving robustness in memory allocation strategies.