https://gcc.gnu.org/bugzilla/show_bug.cgi?id=67648
H.J. Lu <hjl.tools at gmail dot com> changed: What |Removed |Added ---------------------------------------------------------------------------- Target Milestone|--- |6.0 --- Comment #1 from H.J. Lu <hjl.tools at gmail dot com> --- Julia, we should avoid changing call_used_regs in ix86_conditional_register_usage. Instead, we should only save and restore caller-saved registers changed by interrupt handler.