[VectorCombine] Add Ext and Trunc support in foldBitOpOfCastConstant#157822

XChy merged 2 commits intollvm:mainllvm/llvm-project:mainfrom

XChy:perf/vector-combine-bitop-cast-constant-ext-and-truncXChy/llvm-project:perf/vector-combine-bitop-cast-constant-ext-and-truncCopy head branch name to clipboard