| ; RUN: llc -mattr=avr6 < %s -march=avr | FileCheck %s | |
| ; Checks that atomic fences are simply removed from IR. | |
| ; AVR is always singlethreaded so fences do nothing. | |
| ; CHECK_LABEL: atomic_fence8 | |
| ; CHECK: ; %bb.0: | |
| ; CHECK-NEXT: ret | |
| define void @atomic_fence8() { | |
| fence acquire | |
| ret void | |
| } | |