2 Commits

Author	SHA1	Message	Date
Chandler Carruth	b6e32daa81	[PM] Teach the LoopPassManager to automatically canonicalize loops by ... runnig LCSSA over them prior to running the loop pipeline. This also teaches the loop PM to verify that LCSSA form is preserved throughout the pipeline's run across the loop nest. Most of the test updates just leverage this new functionality. One has to be relaxed with the new PM as IVUsers is less powerful when it sees LCSSA input. Differential Revision: https://reviews.llvm.org/D28743 llvm-svn: 292241	2017-01-17 19:18:12 +00:00
Chandler Carruth	0952750fae	[PM] Clean up the testing for IVUsers, especially with the new PM. ... First, I've moved a test of IVUsers from the LSR tree to a dedicated IVUsers test directory. I've also simplified its RUN line now that the new pass manager's loop PM is providing analyses on their own. No functionality changed, but it makes subsequent changes cleaner. llvm-svn: 292060	2017-01-15 09:29:27 +00:00