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1; RUN: llc < %s -march=arm64 | FileCheck %s
2
3define i8* @rt0(i32 %x) nounwind readnone {
4entry:
5; CHECK-LABEL: rt0:
6; CHECK: mov x0, x30
7; CHECK: ret
8  %0 = tail call i8* @llvm.returnaddress(i32 0)
9  ret i8* %0
10}
11
12define i8* @rt2() nounwind readnone {
13entry:
14; CHECK-LABEL: rt2:
15; CHECK: stp x29, x30, [sp, #-16]!
16; CHECK: mov x29, sp
17; CHECK: ldr x[[REG:[0-9]+]], [x29]
18; CHECK: ldr x[[REG2:[0-9]+]], [x[[REG]]]
19; CHECK: ldr x0, [x[[REG2]], #8]
20; CHECK: ldp x29, x30, [sp], #16
21; CHECK: ret
22  %0 = tail call i8* @llvm.returnaddress(i32 2)
23  ret i8* %0
24}
25
26declare i8* @llvm.returnaddress(i32) nounwind readnone
27