-; RUN: llc < %s -march=thumb -mattr=+v6 | FileCheck %s
-
-declare void @llvm.memory.barrier( i1 , i1 , i1 , i1 , i1 )
+; RUN: llc < %s -mtriple=thumbv6-apple-darwin | FileCheck %s -check-prefix=V6
+; RUN: llc < %s -mtriple=thumbv7-apple-darwin -mattr=-db | FileCheck %s -check-prefix=V6
+; RUN: llc < %s -march=thumb -mcpu=cortex-m0 | FileCheck %s -check-prefix=V6M
define void @t1() {
-; CHECK: t1:
-; CHECK: blx {{_*}}sync_synchronize
- call void @llvm.memory.barrier( i1 false, i1 false, i1 false, i1 true, i1 true )
- ret void
-}
+; V6-LABEL: t1:
+; V6: blx {{_*}}sync_synchronize
-define void @t2() {
-; CHECK: t2:
-; CHECK: blx {{_*}}sync_synchronize
- call void @llvm.memory.barrier( i1 false, i1 false, i1 false, i1 true, i1 false )
+; V6M-LABEL: t1:
+; V6M: dmb sy
+ fence seq_cst
ret void
}