2 Commits

Author	SHA1	Message	Date
Andrew Trick	bf69d03382	SCEV: Use AssertingVH to catch dangling BasicBlock* when passes forget ... to notify SCEV of a change. Add forgetLoop in a couple of those places. llvm-svn: 136797	2011-08-03 18:32:11 +00:00
Dan Gohman	487e250109	Fix LoopSimplify to notify ScalarEvolution when splitting a loop backedge ... into an inner loop, as the new loop iteration may differ substantially. This fixes PR8078. llvm-svn: 113057	2010-09-04 02:42:48 +00:00