| ; RUN: llc -mtriple=aarch64-linux-gnu %s -o - | FileCheck %s --check-prefix=LINUX |
| ; RUN: llc -mtriple=aarch64-apple-ios %s -o - | FileCheck %s --check-prefix=IOS |
| ; RUN: llc -mtriple=aarch64-linux-gnueabihf %s -filetype=obj -o %t |
| ; RUN: llvm-objdump -d %t | FileCheck %s --check-prefix=OBJ |
| |
| ; OBJ-NOT: dmb |
| |
| define void @fence_singlethread() { |
| ; LINUX-LABEL: fence_singlethread: |
| ; LINUX-NOT: dmb |
| ; LINUX: // COMPILER BARRIER |
| ; LINUX-NOT: dmb |
| |
| ; IOS-LABEL: fence_singlethread: |
| ; IOS-NOT: dmb |
| ; IOS: ; COMPILER BARRIER |
| ; IOS-NOT: dmb |
| |
| fence syncscope("singlethread") seq_cst |
| ret void |
| } |
