| ; RUN: llc --force-dwarf-frame-section %s -o - | FileCheck %s |
| ; RUN: llc --filetype=obj %s -o - | llvm-readelf -u - | FileCheck %s --check-prefix=UNWIND |
| target datalayout = "e-m:e-p:32:32-Fi8-i64:64-v128:64:128-a:0:32-n32-S64" |
| target triple = "thumbv8.1m.main-arm-unknown-eabi" |
| |
| define hidden i32 @_Z1fi(i32 %x) { |
| entry: |
| %add = add nsw i32 %x, 1 |
| %call = tail call i32 @_Z1gi(i32 %add) |
| %sub = add nsw i32 %call, -1 |
| ret i32 %sub |
| } |
| |
| declare dso_local i32 @_Z1gi(i32) |
| |
| !llvm.module.flags = !{!0, !1, !2} |
| !0 = !{i32 8, !"branch-target-enforcement", i32 1} |
| !1 = !{i32 8, !"sign-return-address", i32 1} |
| !2 = !{i32 8, !"sign-return-address-all", i32 0} |
| |
| ; Check the function starts with `pacbti` and correct unwind info is emitted |
| ; CHECK-LABEL: _Z1fi: |
| ; ... |
| ; CHECK: pacbti r12, lr, sp |
| ; CHECK-NEXT: .save {r7, lr} |
| ; CHECK-NEXT: push {r7, lr} |
| ; CHECK-NEXT: .cfi_def_cfa_offset 8 |
| ; CHECK-NEXT: .cfi_offset lr, -4 |
| ; CHECK-NEXT: .cfi_offset r7, -8 |
| ; CHECK-NEXT: .save {ra_auth_code} |
| ; CHECK-NEXT: str r12, [sp, #-4]! |
| ; CHECK-NEXT: .cfi_def_cfa_offset 12 |
| ; CHECK-NEXT: .cfi_offset ra_auth_code, -12 |
| ; CHECK-NEXT: .pad #4 |
| ; CHECK-NEXT: sub sp, #4 |
| ; CHECK-NEXT: .cfi_def_cfa_offset 16 |
| ; ... |
| |
| ; UNWIND-LABEL: Opcodes [ |
| ; UNWIND-NEXT: 0x00 ; vsp = vsp + 4 |
| ; UNWIND-NEXT: 0xB4 ; pop ra_auth_code |
| ; UNWIND-NEXT: 0x84 0x08 ; pop {r7, lr} |
| ; UNWIND-NEXT: 0xB0 ; finish |
