2 Commits

Author	SHA1	Message	Date
Michael Kruse	8153cc8a10	[RegionInfo] Add debug-time region viewer functions ... Summary: Analogously to Function::viewCFG(), RegionInfo::view() and RegionInfo::viewOnly() are meant to be called in debugging sessions. They open a viewer to show how RegionInfo currently understands the region hierarchy. The functions viewRegion(Function*) and viewRegionOnly(Function*) invoke a fresh region analysis of the function in contrast to viewRegion(RegionInfo*) and viewRegionOnly(RegionInfo*) which show the current analysis result. Reviewers: grosser Subscribers: llvm-commits Differential Revision: http://reviews.llvm.org/D11875 llvm-svn: 244444	2015-08-10 13:21:59 +00:00
Tobias Grosser	604a50cd71	Add new RegionInfo pass. ... The RegionInfo pass detects single entry single exit regions in a function, where a region is defined as any subgraph that is connected to the remaining graph at only two spots. Furthermore an hierarchical region tree is built. Use it by calling "opt -regions analyze" or "opt -view-regions". llvm-svn: 109089	2010-07-22 07:46:31 +00:00