llvm-project

1a60c74c - [CostModel][X86] SK_InsertSubvector inserted into the lowest subvector should be treated as SK_Select blend (#145892)

[CostModel][X86] SK_InsertSubvector inserted into the lowest subvector should be treated as SK_Select blend (#145892) X86 uses implicit widening and BLEND/MOV shuffles in these cases - otherwise we still treat it as a SK_PermuteTwoSrc