llvm-project

44481f50 - [DAGCombine] Change isBuildVectorAll* -> isConstantSplatVectorAll* for Vselect (#147305)

[DAGCombine] Change isBuildVectorAll* -> isConstantSplatVectorAll* for Vselect (#147305) Change isBuildVectorAll* -> isConstantSplatVectorAll* in VSelect in case the fold happens after BuildVector has been canonically transformed to Splat or if the Splat is initially in vselect already - Fixes #73454 - Update related test cases, add extra tests in wasm --------- Co-authored-by: Simon Pilgrim <llvm-dev@redking.me.uk>