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      1 ; RUN: llc -o - %s -mtriple=arm64-apple-ios7.0 | FileCheck %s
      2 
      3 define i8* @rt0(i32 %x) nounwind readnone {
      4 entry:
      5 ; CHECK-LABEL: rt0:
      6 ; CHECK: mov x0, x30
      7   %0 = tail call i8* @llvm.returnaddress(i32 0)
      8   ret i8* %0
      9 }
     10 
     11 define i8* @rt2() nounwind readnone {
     12 entry:
     13 ; CHECK-LABEL: rt2:
     14 ; CHECK: ldr x[[reg:[0-9]+]], [x29]
     15 ; CHECK: ldr x[[reg]], [x[[reg]]]
     16 ; CHECK: ldr x0, [x[[reg]], #8]
     17   %0 = tail call i8* @llvm.returnaddress(i32 2)
     18   ret i8* %0
     19 }
     20 
     21 declare i8* @llvm.returnaddress(i32) nounwind readnone
     22