1; RUN: llc -verify-machineinstrs -mtriple=aarch64-none-linux-gnu < %s | FileCheck %s
2@var = global void()* zeroinitializer
3
4declare void @bar()
5
6define void @foo() {
7; CHECK-LABEL: foo:
8       %func = load void()** @var
9
10       ; Calling a function encourages @foo to use a callee-saved register,
11       ; which makes it a natural choice for the tail call itself. But we don't
12       ; want that: the final "br xN" has to use a temporary or argument
13       ; register.
14       call void @bar()
15
16       tail call void %func()
17; CHECK: br {{x([0-79]|1[0-8])}}
18       ret void
19}
20