1 ; RUN: llc -mattr=avr6 < %s -march=avr | FileCheck %s 2 3 ; Checks that atomic fences are simply removed from IR. 4 ; AVR is always singlethreaded so fences do nothing. 5 6 ; CHECK_LABEL: atomic_fence8 7 ; CHECK: ; %bb.0: 8 ; CHECK-NEXT: ret 9 define void @atomic_fence8() { 10 fence acquire 11 ret void 12 } 13 14
