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AArch64: add test for "fence singlethread" 

Forgot a git add yesterday.

llvm-svn: 301037
This commit is contained in:
Tim Northover 2017-04-21 20:36:08 +00:00
parent e31cf3f824
commit 1efaa3a88f
1 changed files with 21 additions and 0 deletions
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21
llvm/test/CodeGen/AArch64/fence-singlethread.ll Normal file
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; 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 singlethread seq_cst
ret void
}