On Mon, Jun 28, 2021 at 10:49:52AM -0700, Richard Henderson wrote: > On 6/28/21 9:32 AM, Ulrich Weigand wrote: > >>Don't clear out env->fpu_status.float_exception_flags in > >>handle_exceptions. Wait until we're actually done with the data. > > > >I don't really know much about qemu internals, but this is really > >confusing me, sorry. Aren't env->fpu_status and env->cc_op two > >elements of the same global state? Why it is OK to use one of > >these fields to pass information to the next helper, but not the > >other? I guess I must be missing something here ... > > One of them has > > cc_op = tcg_global_mem_new_i32(cpu_env, offsetof(CPUS390XState, cc_op), > "cc_op"); > > which makes it a TCG Global, which may not be modified at will, and one of > them does not.
Got it, thanks! Bye, Ulrich -- Dr. Ulrich Weigand GNU/Linux compilers and toolchain ulrich.weig...@de.ibm.com
