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2 Commits

Author SHA1 Message Date
Benjamin Kramer
b2992c34b5 Make tests more useful. 
lit needs a linter ...

llvm-svn: 130126
 2011-04-25 10:12:01 +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