https://gcc.gnu.org/bugzilla/show_bug.cgi?id=81813
Andrew Pinski <pinskia at gcc dot gnu.org> changed: What |Removed |Added ---------------------------------------------------------------------------- Known to fail| |8.1.0 --- Comment #2 from Andrew Pinski <pinskia at gcc dot gnu.org> --- In GCC 8.5 we had: pushq %r12 .cfi_def_cfa_offset 88 movl $2, %ecx xorl %edx, %edx xorl %r9d, %r9d xorl %r8d, %r8d xorl %esi, %esi movl $rcu_lock_map, %edi call lock_acquire call debug_lockdep_rcu_enabled movq 32(%rsp), %rax leaq 8(%rsp), %rcx leaq 32(%rsp), %rdx movq %rcx, %rsp .cfi_def_cfa_offset 80 cmpq %rax, %rdx jne .L58 In GCC 9.1 (and the trunk) we have: pushq %r13 .cfi_def_cfa_offset 96 xorl %edx, %edx xorl %r9d, %r9d xorl %r8d, %r8d movl $2, %ecx xorl %esi, %esi movl $rcu_lock_map, %edi call lock_acquire call debug_lockdep_rcu_enabled movq 32(%rsp), %rax popq %rdx .cfi_def_cfa_offset 88 cmpq %rax, %rbx jne .L58