llvm/test/CodeGen/Thumb2/pacbti-m-overalign.ll

; NOTE: Assertions have been autogenerated by utils/update_llc_test_checks.py UTC_ARGS: --version 5
; RUN: llc --force-dwarf-frame-section %s -o - | FileCheck %s
; RUN: llc --filetype=obj %s -o - | llvm-readelf --unwind - | 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-none-eabi"

; int g(int, int *);
;
; int f() {
;     __attribute__((aligned(32))) int a[4];
;    g(4, a);
;   int s = 0;
;   for (int i = 0; i < 4; ++i)
;     s +=  a[i];
;   return s;
; }

define hidden i32 @_Z1fv() local_unnamed_addr "sign-return-address"="non-leaf" {
; CHECK-LABEL: _Z1fv:
; CHECK:         .cfi_sections .debug_frame
; CHECK-NEXT:    .cfi_startproc
; CHECK-NEXT:  @ %bb.0: @ %entry
; CHECK-NEXT:    pac r12, lr, sp
; CHECK-NEXT:    .save {r4, r6, r7, ra_auth_code, lr}
; CHECK-NEXT:    push.w {r4, r6, r7, r12, lr}
; CHECK-NEXT:    .cfi_def_cfa_offset 20
; CHECK-NEXT:    .cfi_offset lr, -4
; CHECK-NEXT:    .cfi_offset ra_auth_code, -8
; CHECK-NEXT:    .cfi_offset r7, -12
; CHECK-NEXT:    .cfi_offset r6, -16
; CHECK-NEXT:    .cfi_offset r4, -20
; CHECK-NEXT:    .setfp r7, sp, #8
; CHECK-NEXT:    add r7, sp, #8
; CHECK-NEXT:    .cfi_def_cfa r7, 12
; CHECK-NEXT:    .pad #44
; CHECK-NEXT:    sub sp, #44
; CHECK-NEXT:    mov r4, sp
; CHECK-NEXT:    bfc r4, #0, #5
; CHECK-NEXT:    mov sp, r4
; CHECK-NEXT:    mov r1, sp
; CHECK-NEXT:    movs r0, #4
; CHECK-NEXT:    bl _Z1giPi
; CHECK-NEXT:    ldm.w sp, {r0, r1, r2, r3}
; CHECK-NEXT:    sub.w r4, r7, #8
; CHECK-NEXT:    add r0, r1
; CHECK-NEXT:    add r0, r2
; CHECK-NEXT:    add r0, r3
; CHECK-NEXT:    mov sp, r4
; CHECK-NEXT:    pop.w {r4, r6, r7, r12, lr}
; CHECK-NEXT:    aut r12, lr, sp
; CHECK-NEXT:    bx lr
entry:
  %a = alloca [4 x i32], align 32
  %call = call i32 @_Z1giPi(i32 4, ptr nonnull %a)
  %0 = load i32, ptr %a, align 32
  %arrayidx.1 = getelementptr inbounds [4 x i32], ptr %a, i32 0, i32 1
  %1 = load i32, ptr %arrayidx.1, align 4
  %add.1 = add nsw i32 %1, %0
  %arrayidx.2 = getelementptr inbounds [4 x i32], ptr %a, i32 0, i32 2
  %2 = load i32, ptr %arrayidx.2, align 8
  %add.2 = add nsw i32 %2, %add.1
  %arrayidx.3 = getelementptr inbounds [4 x i32], ptr %a, i32 0, i32 3
  %3 = load i32, ptr %arrayidx.3, align 4
  %add.3 = add nsw i32 %3, %add.2
  ret i32 %add.3
}

declare dso_local i32 @_Z1giPi(i32, ptr) local_unnamed_addr

!llvm.module.flags = !{!0, !1, !2}

!0 = !{i32 8, !"branch-target-enforcement", i32 0}
!1 = !{i32 8, !"sign-return-address", i32 1}
!2 = !{i32 8, !"sign-return-address-all", i32 0}

; UNWIND-LABEL:        FunctionAddress: 0x0
; UNWIND:          0x97      ; vsp = r7
; UNWIND-NEXT:     0x41      ; vsp = vsp - 8
; UNWIND-NEXT:     0x80 0x0D ; pop {r4, r6, r7}
; UNWIND-NEXT:     0xB4      ; pop ra_auth_code
; UNWIND-NEXT:     0x84 0x00 ; pop {lr}