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llvm/test/CodeGen/Thumb2/bti-pac-replace-2.ll
- This file was added.
| ; 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 1, !"branch-target-enforcement", i32 1} | |||||
| !1 = !{i32 1, !"sign-return-address", i32 1} | |||||
| !2 = !{i32 1, !"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 | |||||