[PATCH] D113774: [SLP]Improve splat detection.

[Alexey Bataev via Phabricator via llvm-commits]

ABataev added inline comments.


================
Comment at: llvm/lib/Transforms/Vectorize/SLPVectorizer.cpp:2596
     if (isSplat(Entry->Scalars)) {
       OS << "<splat> " << *Entry->Scalars[0];
       return Str;
----------------
anton-afanasyev wrote:
> ABataev wrote:
> > anton-afanasyev wrote:
> > > Change it or just remove?
> > Why?
> `Entry->Scalars[0]` can be `undef` with this patch, for this case the output is uninformative.
Hard to tell, this is still the very first element of the entry.


Repository:
  rG LLVM Github Monorepo

CHANGES SINCE LAST ACTION
  https://reviews.llvm.org/D113774/new/

https://reviews.llvm.org/D113774