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