1; RUN: opt -S < %s -instcombine | FileCheck %s
2
3declare void @llvm.sideeffect()
4
5; Don't DCE llvm.sideeffect calls.
6
7; CHECK-LABEL: dce
8; CHECK: call void @llvm.sideeffect()
9define void @dce() {
10    call void @llvm.sideeffect()
11    ret void
12}
13