llvm-project

26e8f256 - [RISCV][P-ext] Create zero vector rather than bitcasting from i32 0 in lowerINSERT_SUBVECTOR. (#232852)

[RISCV][P-ext] Create zero vector rather than bitcasting from i32 0 in lowerINSERT_SUBVECTOR. (#232852) Teach LowerBUILD_VECTOR to create SPLAT_VECTOR when all operands are the same to prevent regression.