llvm-project

97743b8b - [SLP][REVEC] Make ShuffleCostEstimator and ShuffleInstructionBuilder support vector instructions. (#99499)

[SLP][REVEC] Make ShuffleCostEstimator and ShuffleInstructionBuilder support vector instructions. (#99499) 1. When REVEC is enabled, we need to expand vector types into scalar types. 2. When REVEC is enabled, CreateInsertVector (and CreateExtractVector) is used because the scalar type may be a FixedVectorType. 3. Since the mask indices which are used by processBuildVector expect the source is scalar type, we need to transform the mask indices into a form which can be used when REVEC is enabled. The transform is only called when the mask is really used.