Sanjoy Das 05c5b3fd8e Be wary of abnormal exits from loop when exploiting UB ... We can safely rely on a NoWrap add recurrence causing UB down the road only if we know the loop does not have a exit expressed in a way that is opaque to ScalarEvolution (e.g. by a function call that conditionally calls exit(0)). I believe with this change PR28012 is fixed. Note: I had to change some llvm-lit tests in LoopReroll, since it looks like they were depending on this incorrect behavior. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@272237 91177308-0d34-0410-b5e6-96231b3b80d8		2016-06-09 01:13:59 +00:00
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basic32iters.ll	[PATCH] Force LoopReroll to reset the loop trip count value after reroll.	2016-03-22 13:50:57 +00:00
basic.ll	Be wary of abnormal exits from loop when exploiting UB	2016-06-09 01:13:59 +00:00
complex_reroll.ll	Reroll loops with multiple IV and negative step part 3	2016-04-30 00:51:22 +00:00
indvar_with_ext.ll	Enable loopreroll for sext of loop control only IV	2016-05-10 21:16:49 +00:00
negative.ll
nonconst_lb.ll	[LPM] Factor all of the loop analysis usage updates into a common helper	2016-02-19 10:45:18 +00:00
ptrindvar.ll	Enable loopreroll to rerool loop with pointer induction variable.	2016-01-25 19:43:45 +00:00
reduction.ll
reroll_with_dbg.ll	[PR27284] Reverse the ownership between DICompileUnit and DISubprogram.	2016-04-15 15:57:41 +00:00