t.p.northover added a comment. I agree with Renato too.
It seems like, as a compiler, we can provide virtually no guarantees about the value of `__builtin_arm_current_pc`: it's not necessarily in the PC-range of the dynamically innermost frame (inlining); it's not necessarily even in the callstack at all (you actually get PC+8 or PC+4). About the only feasible use-case is a some kind of panic/abort implementation best-effort. And at that point you'll want r0-r14 as well. Tim. http://reviews.llvm.org/D22254 _______________________________________________ cfe-commits mailing list cfe-commits@lists.llvm.org http://lists.llvm.org/cgi-bin/mailman/listinfo/cfe-commits
