1; RUN: llc -o - %s | FileCheck %s
2target triple="aarch64--"
3
4declare void @somefunc()
5define preserve_mostcc void @test_ccmismatch_notail() {
6; Ensure that no tail call is used here, as the called function somefunc does
7; not preserve enough registers for preserve_mostcc.
8; CHECK-LABEL: test_ccmismatch_notail:
9; CHECK-NOT: b somefunc
10; CHECK: bl somefunc
11  tail call void @somefunc()
12  ret void
13}
14
15declare preserve_mostcc void @some_preserve_most_func()
16define void @test_ccmismatch_tail() {
17; We can perform a tail call here, because some_preserve_most_func preserves
18; all registers necessary for test_ccmismatch_tail.
19; CHECK-LABEL: test_ccmismatch_tail:
20; CHECK-NOT: bl some_preserve_most_func
21; CHECK: b some_preserve_most_func
22  tail call preserve_mostcc void @some_preserve_most_func()
23  ret void
24}
25