| ; Ensure that adjacent duplicated barriers are not removed at -O0. | |
| ; RUN: llc -O0 < %s -mtriple=armv7 -mattr=+db | FileCheck %s | |
| define i32 @t1() { | |
| entry: | |
| fence seq_cst | |
| fence seq_cst | |
| fence seq_cst | |
| ret i32 0 | |
| } | |
| ; CHECK: @ %bb.0: @ %entry | |
| ; CHECK-NEXT: dmb ish | |
| ; CHECK-NEXT: dmb ish | |
| ; CHECK-NEXT: dmb ish |