RUBY_VM_IFUNC_P   691 eval.c         	if (RUBY_VM_IFUNC_P(iseq)) {
RUBY_VM_IFUNC_P    55 proc.c         	if (proc->block.iseq && RUBY_VM_IFUNC_P(proc->block.iseq)) {
RUBY_VM_IFUNC_P  1311 vm.c           	if (RUBY_VM_IFUNC_P(iseq)) {
RUBY_VM_IFUNC_P   559 vm_core.h        (ptr && !RUBY_VM_IFUNC_P(ptr))
RUBY_VM_IFUNC_P   101 vm_dump.c      	if (RUBY_VM_IFUNC_P(cfp->iseq)) {
RUBY_VM_IFUNC_P   261 vm_dump.c          else if (RUBY_VM_IFUNC_P(iseq)) {