File: select-frameaddr.ll

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llvm-toolchain-16 1%3A16.0.6-15~deb11u2
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; RUN: llc -mtriple=arm64-apple-ios -global-isel -o - %s | FileCheck %s

define ptr @rt0(i32 %x) nounwind readnone {
entry:
; CHECK-LABEL: rt0:
; CHECK: mov x0, x29
  %0 = tail call ptr @llvm.frameaddress(i32 0)
  ret ptr %0
}

define ptr @rt2() nounwind readnone {
entry:
; CHECK-LABEL: rt2:
; CHECK: ldr x[[reg:[0-9]+]], [x29]
; CHECK: ldr x0, [x[[reg]]]
  %0 = tail call ptr @llvm.frameaddress(i32 2)
  ret ptr %0
}

declare ptr @llvm.frameaddress(i32) nounwind readnone