llvm/test/CodeGen/AArch64/sme-darwin-no-sve-vg.ll

; NOTE: Assertions have been autogenerated by utils/update_llc_test_checks.py UTC_ARGS: --version 5
; RUN: llc -o - %s | FileCheck %s
target datalayout = "e-m:o-i64:64-i128:128-n32:64-S128-Fn32"
target triple = "arm64-apple-macosx14.0.0"

; Check we don't crash on Darwin and that we don't try to save VG
; when only SME (and not SVE) is enabled.

; Function Attrs: mustprogress norecurse nounwind ssp uwtable(sync)
define noundef i32 @main() local_unnamed_addr #0 {
; CHECK-LABEL: main:
; CHECK:       ; %bb.0: ; %entry
; CHECK-NEXT:    stp d15, d14, [sp, #-80]! ; 16-byte Folded Spill
; CHECK-NEXT:    .cfi_def_cfa_offset 80
; CHECK-NEXT:    stp d13, d12, [sp, #16] ; 16-byte Folded Spill
; CHECK-NEXT:    stp d11, d10, [sp, #32] ; 16-byte Folded Spill
; CHECK-NEXT:    stp d9, d8, [sp, #48] ; 16-byte Folded Spill
; CHECK-NEXT:    stp x29, x30, [sp, #64] ; 16-byte Folded Spill
; CHECK-NEXT:    .cfi_offset w30, -8
; CHECK-NEXT:    .cfi_offset w29, -16
; CHECK-NEXT:    .cfi_offset b8, -24
; CHECK-NEXT:    .cfi_offset b9, -32
; CHECK-NEXT:    .cfi_offset b10, -40
; CHECK-NEXT:    .cfi_offset b11, -48
; CHECK-NEXT:    .cfi_offset b12, -56
; CHECK-NEXT:    .cfi_offset b13, -64
; CHECK-NEXT:    .cfi_offset b14, -72
; CHECK-NEXT:    .cfi_offset b15, -80
; CHECK-NEXT:    smstart sm
; CHECK-NEXT:    bl __ZL9sme_crashv
; CHECK-NEXT:    smstop sm
; CHECK-NEXT:    mov w0, #0 ; =0x0
; CHECK-NEXT:    ldp x29, x30, [sp, #64] ; 16-byte Folded Reload
; CHECK-NEXT:    ldp d9, d8, [sp, #48] ; 16-byte Folded Reload
; CHECK-NEXT:    ldp d11, d10, [sp, #32] ; 16-byte Folded Reload
; CHECK-NEXT:    ldp d13, d12, [sp, #16] ; 16-byte Folded Reload
; CHECK-NEXT:    ldp d15, d14, [sp], #80 ; 16-byte Folded Reload
; CHECK-NEXT:    .cfi_def_cfa_offset 0
; CHECK-NEXT:    .cfi_restore w30
; CHECK-NEXT:    .cfi_restore w29
; CHECK-NEXT:    .cfi_restore b8
; CHECK-NEXT:    .cfi_restore b9
; CHECK-NEXT:    .cfi_restore b10
; CHECK-NEXT:    .cfi_restore b11
; CHECK-NEXT:    .cfi_restore b12
; CHECK-NEXT:    .cfi_restore b13
; CHECK-NEXT:    .cfi_restore b14
; CHECK-NEXT:    .cfi_restore b15
; CHECK-NEXT:    ret
entry:
  tail call fastcc void @_ZL9sme_crashv() #4
  ret i32 0
}

; Function Attrs: mustprogress norecurse nounwind ssp uwtable(sync)
define internal fastcc void @_ZL9sme_crashv() unnamed_addr #1 {
; CHECK-LABEL: _ZL9sme_crashv:
; CHECK:       ; %bb.0: ; %entry
; CHECK-NEXT:    stp d15, d14, [sp, #-96]! ; 16-byte Folded Spill
; CHECK-NEXT:    .cfi_def_cfa_offset 96
; CHECK-NEXT:    stp d13, d12, [sp, #16] ; 16-byte Folded Spill
; CHECK-NEXT:    stp d11, d10, [sp, #32] ; 16-byte Folded Spill
; CHECK-NEXT:    stp d9, d8, [sp, #48] ; 16-byte Folded Spill
; CHECK-NEXT:    stp x28, x27, [sp, #64] ; 16-byte Folded Spill
; CHECK-NEXT:    stp x29, x30, [sp, #80] ; 16-byte Folded Spill
; CHECK-NEXT:    add x29, sp, #80
; CHECK-NEXT:    .cfi_def_cfa w29, 16
; CHECK-NEXT:    .cfi_offset w30, -8
; CHECK-NEXT:    .cfi_offset w29, -16
; CHECK-NEXT:    .cfi_offset w27, -24
; CHECK-NEXT:    .cfi_offset w28, -32
; CHECK-NEXT:    .cfi_offset b8, -40
; CHECK-NEXT:    .cfi_offset b9, -48
; CHECK-NEXT:    .cfi_offset b10, -56
; CHECK-NEXT:    .cfi_offset b11, -64
; CHECK-NEXT:    .cfi_offset b12, -72
; CHECK-NEXT:    .cfi_offset b13, -80
; CHECK-NEXT:    .cfi_offset b14, -88
; CHECK-NEXT:    .cfi_offset b15, -96
; CHECK-NEXT:    .cfi_remember_state
; CHECK-NEXT:    sub x9, sp, #160
; CHECK-NEXT:    and sp, x9, #0xffffffffffffff00
; CHECK-NEXT:  Lloh0:
; CHECK-NEXT:    adrp x8, ___stack_chk_guard@GOTPAGE
; CHECK-NEXT:  Lloh1:
; CHECK-NEXT:    ldr x8, [x8, ___stack_chk_guard@GOTPAGEOFF]
; CHECK-NEXT:  Lloh2:
; CHECK-NEXT:    ldr x8, [x8]
; CHECK-NEXT:    str x8, [sp, #152]
; CHECK-NEXT:    mov z0.b, #0 ; =0x0
; CHECK-NEXT:    stp q0, q0, [sp, #32]
; CHECK-NEXT:    stp q0, q0, [sp]
; CHECK-NEXT:    mov x8, sp
; CHECK-NEXT:    ; InlineAsm Start
; CHECK-NEXT:    ptrue p0.s
; CHECK-NEXT:    st1w { z0.s }, p0, [x8]
; CHECK-EMPTY:
; CHECK-NEXT:    ; InlineAsm End
; CHECK-NEXT:    ldr x8, [sp, #152]
; CHECK-NEXT:  Lloh3:
; CHECK-NEXT:    adrp x9, ___stack_chk_guard@GOTPAGE
; CHECK-NEXT:  Lloh4:
; CHECK-NEXT:    ldr x9, [x9, ___stack_chk_guard@GOTPAGEOFF]
; CHECK-NEXT:  Lloh5:
; CHECK-NEXT:    ldr x9, [x9]
; CHECK-NEXT:    cmp x9, x8
; CHECK-NEXT:    b.ne LBB1_2
; CHECK-NEXT:  ; %bb.1: ; %entry
; CHECK-NEXT:    sub sp, x29, #80
; CHECK-NEXT:    .cfi_def_cfa wsp, 96
; CHECK-NEXT:    ldp x29, x30, [sp, #80] ; 16-byte Folded Reload
; CHECK-NEXT:    ldp x28, x27, [sp, #64] ; 16-byte Folded Reload
; CHECK-NEXT:    ldp d9, d8, [sp, #48] ; 16-byte Folded Reload
; CHECK-NEXT:    ldp d11, d10, [sp, #32] ; 16-byte Folded Reload
; CHECK-NEXT:    ldp d13, d12, [sp, #16] ; 16-byte Folded Reload
; CHECK-NEXT:    ldp d15, d14, [sp], #96 ; 16-byte Folded Reload
; CHECK-NEXT:    .cfi_def_cfa_offset 0
; CHECK-NEXT:    .cfi_restore w30
; CHECK-NEXT:    .cfi_restore w29
; CHECK-NEXT:    .cfi_restore w27
; CHECK-NEXT:    .cfi_restore w28
; CHECK-NEXT:    .cfi_restore b8
; CHECK-NEXT:    .cfi_restore b9
; CHECK-NEXT:    .cfi_restore b10
; CHECK-NEXT:    .cfi_restore b11
; CHECK-NEXT:    .cfi_restore b12
; CHECK-NEXT:    .cfi_restore b13
; CHECK-NEXT:    .cfi_restore b14
; CHECK-NEXT:    .cfi_restore b15
; CHECK-NEXT:    ret
; CHECK-NEXT:  LBB1_2: ; %entry
; CHECK-NEXT:    .cfi_restore_state
; CHECK-NEXT:    smstop sm
; CHECK-NEXT:    bl ___stack_chk_fail
; CHECK-NEXT:    smstart sm
; CHECK-NEXT:    .loh AdrpLdrGotLdr Lloh3, Lloh4, Lloh5
; CHECK-NEXT:    .loh AdrpLdrGotLdr Lloh0, Lloh1, Lloh2
entry:
  %uu = alloca [16 x float], align 256
  call void @llvm.lifetime.start.p0(i64 64, ptr nonnull %uu) #5
  call void @llvm.memset.p0.i64(ptr noundef nonnull align 256 dereferenceable(64) %uu, i8 0, i64 64, i1 false)
  call void asm sideeffect "ptrue p0.s\0Ast1w { z0.s }, p0, [$0]\0A", "r"(ptr nonnull %uu) #5
  call void @llvm.lifetime.end.p0(i64 64, ptr nonnull %uu) #5
  ret void
}

; Function Attrs: mustprogress nocallback nofree nosync nounwind willreturn memory(argmem: readwrite)
declare void @llvm.lifetime.start.p0(i64 immarg, ptr nocapture) #2

; Function Attrs: mustprogress nocallback nofree nounwind willreturn memory(argmem: write)
declare void @llvm.memset.p0.i64(ptr nocapture writeonly, i8, i64, i1 immarg) #3

; Function Attrs: mustprogress nocallback nofree nosync nounwind willreturn memory(argmem: readwrite)
declare void @llvm.lifetime.end.p0(i64 immarg, ptr nocapture) #2

attributes #0 = { mustprogress norecurse nounwind ssp uwtable(sync) "stack-protector-buffer-size"="8" "target-cpu"="apple-a16" "target-features"="+sme,+sme-f64f64,+sme2" }
attributes #1 = { mustprogress norecurse nounwind ssp uwtable(sync) "aarch64_pstate_sm_enabled" "stack-protector-buffer-size"="8" "target-cpu"="apple-a16" "target-features"="+sme,+sme-f64f64,+sme2" }
attributes #2 = { mustprogress nocallback nofree nosync nounwind willreturn memory(argmem: readwrite) }
attributes #3 = { mustprogress nocallback nofree nounwind willreturn memory(argmem: write) }
attributes #4 = { "aarch64_pstate_sm_enabled" "no-builtin-calloc" "no-builtin-stpcpy" }
attributes #5 = { nounwind }