llvm-project

3b12bac6 - [LLVM][Reassociate] Extend ConvertShiftToMul to allow for ConstantInt vectors. (#137340)

[LLVM][Reassociate] Extend ConvertShiftToMul to allow for ConstantInt vectors. (#137340) This has the side effect of fixing the FIXME for when use-constant-int-for-fixed-length-splat becomes the default.