llvm-project

120c4cf6 - [X86] Remove custom widening legalization of vector udiv/sdiv/urem/srem. (#188786)

[X86] Remove custom widening legalization of vector udiv/sdiv/urem/srem. (#188786) This custom legalization was preserving splat values in widened build_vector to allow the div by constant optimization to work. We now allow division by constant optimization on narrow vector types before type legalization so we no longer need this.