derek.holloway
7502bf64a4
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46 lines
1.6 KiB
LLVM
46 lines
1.6 KiB
LLVM
; NOTE: Assertions have been autogenerated by utils/update_llc_test_checks.py UTC_ARGS: --version 5
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; RUN: llc --force-dwarf-frame-section %s -o - | FileCheck %s
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; RUN: llc --filetype=obj %s -o - | llvm-readelf -u - | FileCheck %s --check-prefix=UNWIND
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target datalayout = "e-m:e-p:32:32-Fi8-i64:64-v128:64:128-a:0:32-n32-S64"
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target triple = "thumbv8.1m.main-arm-unknown-eabi"
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; Check the function starts with `pacbti` and correct unwind info is emitted
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define hidden i32 @_Z1fi(i32 %x) "sign-return-address"="non-leaf" "sign-return-address-key"="a_key" "branch-target-enforcement" {
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; CHECK-LABEL: _Z1fi:
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; CHECK: .cfi_sections .debug_frame
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; CHECK-NEXT: .cfi_startproc
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; CHECK-NEXT: @ %bb.0: @ %entry
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; CHECK-NEXT: pacbti r12, lr, sp
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; CHECK-NEXT: .save {r7, ra_auth_code, lr}
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; CHECK-NEXT: push.w {r7, r12, lr}
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; CHECK-NEXT: .cfi_def_cfa_offset 12
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; CHECK-NEXT: .cfi_offset lr, -4
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; CHECK-NEXT: .cfi_offset ra_auth_code, -8
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; CHECK-NEXT: .cfi_offset r7, -12
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; CHECK-NEXT: .pad #4
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; CHECK-NEXT: sub sp, #4
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; CHECK-NEXT: .cfi_def_cfa_offset 16
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; CHECK-NEXT: adds r0, #1
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; CHECK-NEXT: bl _Z1gi
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; CHECK-NEXT: subs r0, #1
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; CHECK-NEXT: add sp, #4
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; CHECK-NEXT: pop.w {r7, r12, lr}
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; CHECK-NEXT: aut r12, lr, sp
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; CHECK-NEXT: bx lr
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entry:
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%add = add nsw i32 %x, 1
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%call = tail call i32 @_Z1gi(i32 %add)
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%sub = add nsw i32 %call, -1
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ret i32 %sub
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}
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declare dso_local i32 @_Z1gi(i32)
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; UNWIND-LABEL: Opcodes [
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; UNWIND-NEXT: 0x00 ; vsp = vsp + 4
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; UNWIND-NEXT: 0x80 0x08 ; pop {r7}
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; UNWIND-NEXT: 0xB4 ; pop ra_auth_code
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; UNWIND-NEXT: 0x84 0x00 ; pop {lr}
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