[PATCH] D33055: [LoopOptimizer][Fix]PR32859, PR24738

[Dinar Temirbulatov via Phabricator via llvm-commits]

dtemirbulatov created this revision.

The Loop vectorizer pass introduced undef value while it is fixing output of LCSSA form. 
Here it is:

before: %e.0.ph = phi i32 [ 0, %for.inc.2.i ]
after:   %e.0.ph = phi i32 [ 0, %for.inc.2.i ], [ undef, %middle.block ]

and after this change we have:

%e.0.ph = phi i32 [ 0, %for.inc.2.i ]
%e.0.ph = phi i32 [ 0, %for.inc.2.i ], [ 0, %middle.block ]

Ok to commit?


https://reviews.llvm.org/D33055

Files:
  lib/Transforms/Vectorize/LoopVectorize.cpp
  test/Transforms/LoopVectorize/pr32859.ll

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