llvm-project

f0dc8baa - [CodeGen][NVPTXISelLowering] Fix missing lowering of smul_lohi and umul_lohi (#230234)

[CodeGen][NVPTXISelLowering] Fix missing lowering of smul_lohi and umul_lohi (#230234) NVPTX ISelLowering was missing legalization rules for i16/i32 umul_lohi and smul_lohi. This would cause codegen failure when the combiner was disabled as they are not legal in ptx. Adds custom lowering to mul.wide. Adds a test with combiner disabled.