James Molloy 94327af5e1 [ValueTracking] Add a new predicate: isKnownNonEqual() ... isKnownNonEqual(A, B) returns true if it can be determined that A != B. At the moment it only knows two facts, that a non-wrapping add of nonzero to a value cannot be that value: A + B != A [where B != 0, addition is nsw or nuw] and that contradictory known bits imply two values are not equal. This patch also hooks this up to InstSimplify; InstSimplify had a peephole for the first fact but not the second so this teaches InstSimplify a new trick too (alas no measured performance impact!) llvm-svn: 251012		2015-10-22 13:18:42 +00:00
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assume.ll	[ValueTracking] do not overwrite analysis results already computed	2015-06-15 05:46:29 +00:00
dom-cond.ll	[ValueTracking] do not overwrite analysis results already computed	2015-06-15 05:46:29 +00:00
known-non-equal.ll	[ValueTracking] Add a new predicate: isKnownNonEqual()	2015-10-22 13:18:42 +00:00
knownzero-shift.ll	[ValueTracking] Teach isKnownNonZero a new trick	2015-09-24 16:06:32 +00:00
memory-dereferenceable.ll	Introduce !align metadata for load instruction	2015-09-28 17:41:08 +00:00
monotonic-phi.ll	[ValueTracking] Teach isKnownNonZero about monotonically increasing PHIs	2015-09-29 14:08:45 +00:00
pr23011.ll	[ValueTracking] Fix PR23011.	2015-03-25 22:33:53 +00:00
pr24866.ll	Fix for pr24866	2015-09-21 22:04:10 +00:00