llvm/test/CodeGen/Thumb2/thumb2-barrier.ll
Evan Cheng 11db068721 - Add subtarget feature -mattr=+db which determine whether an ARM cpu has the
memory and synchronization barrier dmb and dsb instructions.
- Change instruction names to something more sensible (matching name of actual
  instructions).
- Added tests for memory barrier codegen.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@110785 91177308-0d34-0410-b5e6-96231b3b80d8
2010-08-11 06:22:01 +00:00

18 lines
408 B
LLVM

; RUN: llc < %s -march=thumb -mcpu=cortex-a8 | FileCheck %s
declare void @llvm.memory.barrier( i1 , i1 , i1 , i1 , i1 )
define void @t1() {
; CHECK: t1:
; CHECK: dsb
call void @llvm.memory.barrier( i1 false, i1 false, i1 false, i1 true, i1 true )
ret void
}
define void @t2() {
; CHECK: t2:
; CHECK: dmb
call void @llvm.memory.barrier( i1 false, i1 false, i1 false, i1 true, i1 false )
ret void
}