Keno Fischer a3e4b3bd33 [SCEV] Use isKnownViaNonRecursiveReasoning for smax simplification ...

Summary:
Commit
	rL331949: SCEV] Do not use induction in isKnownPredicate for simplification umax

changed the codepath for umax from isKnownPredicate to
isKnownViaNonRecursiveReasoning to avoid compile time blow up (and as
I found out also stack overflows). However, there is an exact copy of
the code for umax that was lacking this change. In D50167 I want to unify
these codepaths, but to avoid that being a behavior change for the smax
case, pull this independent bit out of it.

Reviewed By: sanjoy
Differential Revision: https://reviews.llvm.org/D61166

llvm-svn: 359693

2019-05-01 15:58:24 +00:00

474 KiB

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