llvm-project

7d003d11 - [AMDGPU] Skip vector atomicrmw operands in AtomicOptimizer (#223309)

[AMDGPU] Skip vector atomicrmw operands in AtomicOptimizer (#223309) A uniform `<2 x i32>` `atomicrmw add` reaches a scalar-to-vector lane-count cast and asserts in AMDGPUAtomicOptimizer. The divergent-value path rejects types in `isLegalCrossLaneType`, but the uniform-value path does not. Returned vectors also enter scalar result construction. Reject vector types in `visitAtomicRMWInst` and `visitIntrinsicInst` before either value path. The regression covers unused global `add`, returned LDS `and`, and a uniform scalar `i16` control that must still optimize, using DPP and iterative strategies on wave64 and wave32 subtargets.