Alexey Bataev a4fc0219e6 [SLP] Fix for PR31847: Assertion failed: (isLoopInvariant(Operands[i], L) && "SCEVAddRecExpr operand is not loop-invariant!") ...

Initially SLP vectorizer replaced all going-to-be-vectorized
instructions with Undef values. It may break ScalarEvaluation and may
cause a crash.
Reworked SLP vectorizer so that it does not replace vectorized
instructions by UndefValue anymore. Instead vectorized instructions are
marked for deletion inside if BoUpSLP class and deleted upon class
destruction.

Reviewers: mzolotukhin, mkuper, hfinkel, RKSimon, davide, spatel

Subscribers: RKSimon, Gerolf, anemet, hans, majnemer, llvm-commits, sanjoy

Differential Revision: https://reviews.llvm.org/D29641

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@373166 91177308-0d34-0410-b5e6-96231b3b80d8

2019-09-29 14:18:06 +00:00

..

LoadStoreVectorizer.h

Update the file headers across all of the LLVM projects in the monorepo

2019-01-19 08:50:56 +00:00

LoopVectorizationLegality.h

[LV] Fix miscompiles by adding non-header PHI nodes to AllowedExit

2019-09-03 09:33:55 +00:00

LoopVectorize.h

[LV][NFC] Share the LV illegality reporting with LoopVectorize.

2019-08-06 06:08:48 +00:00

SLPVectorizer.h

[SLP] Fix for PR31847: Assertion failed: (isLoopInvariant(Operands[i], L) && "SCEVAddRecExpr operand is not loop-invariant!")

2019-09-29 14:18:06 +00:00