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Summary

  1. Temporarily revert "[SLP] fix miscompile on min/max reductions with (details)
Commit 6f1cc4151a5ad297b2d1d87d98e266f9729100e2 by echristo
Temporarily revert "[SLP] fix miscompile on min/max reductions with
extra uses (PR43948)" as it causes an ICE on valid. A testcase was
followed up on the original thread.
This reverts commit a3e61946c5bd7bdfab15af76b292e52d6ffa27f7.
The file was modifiedllvm/test/Transforms/SLPVectorizer/X86/used-reduced-op.ll
The file was modifiedllvm/lib/Transforms/Vectorize/SLPVectorizer.cpp
The file was modifiedllvm/test/Transforms/SLPVectorizer/X86/reduction.ll