mgrang added a comment. _ReadStatusReg and _WriteStatusReg intrinsics take ARM64_REGNO as input. These are defined in https://www.codemachine.com/downloads/win10/winnt.h. LLVM already has intrinsics to read/write status regs: __builtin_arm_rsr/__builtin_arm_wsr. But these take the string concatenation of the byte repesentation of a register (like "1:2:3:4:5"). So I convert ARM64_REGNO to this string format and invoke read_register/write_register intrinsics.
Repository: rC Clang https://reviews.llvm.org/D53115 _______________________________________________ cfe-commits mailing list cfe-commits@lists.llvm.org http://lists.llvm.org/cgi-bin/mailman/listinfo/cfe-commits
