1; NOTE: Assertions have been autogenerated by utils/update_llc_test_checks.py UTC_ARGS: --version 5 2; RUN: llc --force-dwarf-frame-section %s -o - | FileCheck %s 3; RUN: llc --filetype=obj %s -o - | llvm-readelf -u - | FileCheck %s --check-prefix=UNWIND 4target datalayout = "e-m:e-p:32:32-Fi8-i64:64-v128:64:128-a:0:32-n32-S64" 5target triple = "thumbv8.1m.main-arm-unknown-eabi" 6 7; Check the function starts with `pacbti` and correct unwind info is emitted 8define hidden i32 @_Z1fi(i32 %x) "sign-return-address"="non-leaf" "sign-return-address-key"="a_key" "branch-target-enforcement" { 9; CHECK-LABEL: _Z1fi: 10; CHECK: .cfi_sections .debug_frame 11; CHECK-NEXT: .cfi_startproc 12; CHECK-NEXT: @ %bb.0: @ %entry 13; CHECK-NEXT: pacbti r12, lr, sp 14; CHECK-NEXT: .save {r7, ra_auth_code, lr} 15; CHECK-NEXT: push.w {r7, r12, lr} 16; CHECK-NEXT: .cfi_def_cfa_offset 12 17; CHECK-NEXT: .cfi_offset lr, -4 18; CHECK-NEXT: .cfi_offset ra_auth_code, -8 19; CHECK-NEXT: .cfi_offset r7, -12 20; CHECK-NEXT: .pad #4 21; CHECK-NEXT: sub sp, #4 22; CHECK-NEXT: .cfi_def_cfa_offset 16 23; CHECK-NEXT: adds r0, #1 24; CHECK-NEXT: bl _Z1gi 25; CHECK-NEXT: subs r0, #1 26; CHECK-NEXT: add sp, #4 27; CHECK-NEXT: pop.w {r7, r12, lr} 28; CHECK-NEXT: aut r12, lr, sp 29; CHECK-NEXT: bx lr 30entry: 31 %add = add nsw i32 %x, 1 32 %call = tail call i32 @_Z1gi(i32 %add) 33 %sub = add nsw i32 %call, -1 34 ret i32 %sub 35} 36 37declare dso_local i32 @_Z1gi(i32) 38 39; UNWIND-LABEL: Opcodes [ 40; UNWIND-NEXT: 0x00 ; vsp = vsp + 4 41; UNWIND-NEXT: 0x80 0x08 ; pop {r7} 42; UNWIND-NEXT: 0xB4 ; pop ra_auth_code 43; UNWIND-NEXT: 0x84 0x00 ; pop {lr} 44 45 46