llvm-project

1813ffd6 - [SLP][REVEC] Make SLP support revectorization (-slp-revec) and add simple test. (#98269)

[SLP][REVEC] Make SLP support revectorization (-slp-revec) and add simple test. (#98269) This PR will make SLP support revectorization. Add an option -slp-revec to control the functionality. reference: https://discourse.llvm.org/t/rfc-make-slp-vectorizer-revectorize-vector-instructions/79436