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view test/CodeGen/ARM/noopt-dmb-v7.ll @ 100:7d135dc70f03

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LLVM 3.9
author Miyagi Mitsuki <e135756@ie.u-ryukyu.ac.jp>
date Tue, 26 Jan 2016 22:53:40 +0900
parents afa8332a0e37
children
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; 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