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Hello, I am adding function calls to an LLVM link-time optimization (LTO) pass, using the IRBuilder::CreateCall method. I want these calls to remain in the final x86 binary at any optimization level, but on levels -O2 and -O3, some of these calls are being optimized out. So far, I've tried adding each function in the program (excluding LLVM intrinsics) to the llvm.used set, and I've also