llvm-project

672c51c9 - [SDAG][tests] add some test cases covering an add-based rotate (#132842)

[SDAG][tests] add some test cases covering an add-based rotate (#132842) Add tests to various targets covering rotate idioms where an 'ADD' node is used to combine the halves instead of an 'OR'. Some of these cases will be better optimized following #125612, while others are already well optimized or do not have a valid fold to a rotate or funnel-shift.