River Riddle 485746f524 Implement the initial AnalysisManagement infrastructure, with the introduction of the FunctionAnalysisManager and ModuleAnalysisManager classes. These classes provide analysis computation, caching, and invalidation for a specific IR unit. The invalidation is currently limited to either all or none, i.e. you cannot yet preserve specific analyses. ... An analysis can be any class, but it must provide the following: * A constructor for a given IR unit. struct MyAnalysis { // Compute this analysis with the provided module. MyAnalysis(Module *module); }; Analyses can be accessed from a Pass by calling either the 'getAnalysisResult<AnalysisT>' or 'getCachedAnalysisResult<AnalysisT>' methods. A FunctionPass may query for a cached analysis on the parent module with 'getCachedModuleAnalysisResult'. Similary, a ModulePass may query an analysis, it doesn't need to be cached, on a child function with 'getFunctionAnalysisResult'. By default, when running a pass all cached analyses are set to be invalidated. If no transformation was performed, a pass can use the method 'markAllAnalysesPreserved' to preserve all analysis results. As noted above, preserving specific analyses is not yet supported. PiperOrigin-RevId: 236505642		2019-03-29 16:54:50 -07:00
mlir	Implement the initial AnalysisManagement infrastructure, with the introduction of the FunctionAnalysisManager and ModuleAnalysisManager classes. These classes provide analysis computation, caching, and invalidation for a specific IR unit. The invalidation is currently limited to either all or none, i.e. you cannot yet preserve specific analyses.	2019-03-29 16:54:50 -07:00