[FuzzMutate] Properly handle intrinsics and avoid illegal code genertion #145495
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…ion (llvm#145495) This PR addresses issues related to the `amdgcn_cs_chain` intrinsic: 1. Ensures the intrinsic's special attribute and calling convention requirements are not violated by the mutator. 2. Enforces the necessary unreachable statement following this type of intrinsic, preventing the fuzzer from generating invalid code.
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This PR addresses issues related to the
amdgcn_cs_chainintrinsic: