; LLVM IR from CactiLab/Sherloc-Cortex-M-CFVD :: Sherloc_runtime/evaluation/src/sglib_dllist (dllist)

; Unoptimized IR (clang -disable-llvm-passes):
target datalayout = "e-m:e-p270:32:32-p271:32:32-p272:64:64-i64:64-i128:128-f80:128-n8:16:32:64-S128"
target triple = "x86_64-unknown-linux-gnu"

%struct.sglib_dllist_iterator = type { ptr, ptr, ptr, ptr, ptr }
%struct.dllist = type { i32, ptr, ptr }

; Function Attrs: nounwind uwtable
define dso_local ptr @sglib_dllist_it_init_on_equal(ptr noundef %0, ptr noundef %1, ptr noundef %2, ptr noundef %3) #0 {
  %5 = alloca ptr, align 8
  %6 = alloca ptr, align 8
  %7 = alloca ptr, align 8
  %8 = alloca ptr, align 8
  store ptr %0, ptr %5, align 8, !tbaa !5
  store ptr %1, ptr %6, align 8, !tbaa !5
  store ptr %2, ptr %7, align 8, !tbaa !5
  store ptr %3, ptr %8, align 8, !tbaa !5
  %9 = load ptr, ptr %7, align 8, !tbaa !5
  %10 = load ptr, ptr %5, align 8, !tbaa !5
  %11 = getelementptr inbounds %struct.sglib_dllist_iterator, ptr %10, i32 0, i32 3
  store ptr %9, ptr %11, align 8, !tbaa !9
  %12 = load ptr, ptr %8, align 8, !tbaa !5
  %13 = load ptr, ptr %5, align 8, !tbaa !5
  %14 = getelementptr inbounds %struct.sglib_dllist_iterator, ptr %13, i32 0, i32 4
  store ptr %12, ptr %14, align 8, !tbaa !11
  %15 = load ptr, ptr %6, align 8, !tbaa !5
  %16 = load ptr, ptr %5, align 8, !tbaa !5
  %17 = getelementptr inbounds %struct.sglib_dllist_iterator, ptr %16, i32 0, i32 1
  store ptr %15, ptr %17, align 8, !tbaa !12
  %18 = load ptr, ptr %6, align 8, !tbaa !5
  %19 = load ptr, ptr %5, align 8, !tbaa !5
  %20 = getelementptr inbounds %struct.sglib_dllist_iterator, ptr %19, i32 0, i32 2
  store ptr %18, ptr %20, align 8, !tbaa !13
  %21 = load ptr, ptr %6, align 8, !tbaa !5
  %22 = icmp ne ptr %21, null
  br i1 %22, label %23, label %29

23:                                               ; preds = %4
  %24 = load ptr, ptr %6, align 8, !tbaa !5
  %25 = getelementptr inbounds %struct.dllist, ptr %24, i32 0, i32 1
  %26 = load ptr, ptr %25, align 8, !tbaa !14
  %27 = load ptr, ptr %5, align 8, !tbaa !5
  %28 = getelementptr inbounds %struct.sglib_dllist_iterator, ptr %27, i32 0, i32 2
  store ptr %26, ptr %28, align 8, !tbaa !13
  br label %29

29:                                               ; preds = %23, %4
  %30 = load ptr, ptr %5, align 8, !tbaa !5
  %31 = call ptr @sglib_dllist_it_next(ptr noundef %30)
  ret ptr %31
}

; Function Attrs: nounwind uwtable
declare dso_local ptr @sglib_dllist_it_next(ptr noundef) #0

attributes #0 = { nounwind uwtable "min-legal-vector-width"="0" "no-trapping-math"="true" "stack-protector-buffer-size"="8" "target-cpu"="x86-64" "target-features"="+cmov,+cx8,+fxsr,+mmx,+sse,+sse2,+x87" "tune-cpu"="generic" }

!llvm.module.flags = !{!0, !1, !2, !3}
!llvm.ident = !{!4}

!0 = !{i32 1, !"wchar_size", i32 4}
!1 = !{i32 8, !"PIC Level", i32 2}
!2 = !{i32 7, !"PIE Level", i32 2}
!3 = !{i32 7, !"uwtable", i32 2}
!4 = !{!"clang version 19.1.0 (git@github.com:llvm/llvm-project.git a4bf6cd7cfb1a1421ba92bca9d017b49936c55e4)"}
!5 = !{!6, !6, i64 0}
!6 = !{!"any pointer", !7, i64 0}
!7 = !{!"omnipotent char", !8, i64 0}
!8 = !{!"Simple C/C++ TBAA"}
!9 = !{!10, !6, i64 24}
!10 = !{!"sglib_dllist_iterator", !6, i64 0, !6, i64 8, !6, i64 16, !6, i64 24, !6, i64 32}
!11 = !{!10, !6, i64 32}
!12 = !{!10, !6, i64 8}
!13 = !{!10, !6, i64 16}
!14 = !{!15, !6, i64 8}
!15 = !{!"dllist", !16, i64 0, !6, i64 8, !6, i64 16}
!16 = !{!"int", !7, i64 0}


; Optimized IR (opt -passes='default<O3>'):
target datalayout = "e-m:e-p270:32:32-p271:32:32-p272:64:64-i64:64-i128:128-f80:128-n8:16:32:64-S128"
target triple = "x86_64-unknown-linux-gnu"

; Function Attrs: nounwind uwtable
define dso_local ptr @sglib_dllist_it_init_on_equal(ptr noundef %0, ptr noundef %1, ptr noundef %2, ptr noundef %3) local_unnamed_addr #0 {
  %5 = getelementptr inbounds i8, ptr %0, i64 24
  store ptr %2, ptr %5, align 8, !tbaa !5
  %6 = getelementptr inbounds i8, ptr %0, i64 32
  store ptr %3, ptr %6, align 8, !tbaa !10
  %7 = getelementptr inbounds i8, ptr %0, i64 8
  store ptr %1, ptr %7, align 8, !tbaa !11
  %8 = getelementptr inbounds i8, ptr %0, i64 16
  store ptr %1, ptr %8, align 8, !tbaa !12
  %.not = icmp eq ptr %1, null
  br i1 %.not, label %12, label %9

9:                                                ; preds = %4
  %10 = getelementptr inbounds i8, ptr %1, i64 8
  %11 = load ptr, ptr %10, align 8, !tbaa !13
  store ptr %11, ptr %8, align 8, !tbaa !12
  br label %12

12:                                               ; preds = %9, %4
  %13 = tail call ptr @sglib_dllist_it_next(ptr noundef nonnull %0)
  ret ptr %13
}

; Function Attrs: nounwind uwtable
declare dso_local ptr @sglib_dllist_it_next(ptr noundef) local_unnamed_addr #0

attributes #0 = { nounwind uwtable "min-legal-vector-width"="0" "no-trapping-math"="true" "stack-protector-buffer-size"="8" "target-cpu"="x86-64" "target-features"="+cmov,+cx8,+fxsr,+mmx,+sse,+sse2,+x87" "tune-cpu"="generic" }

!llvm.module.flags = !{!0, !1, !2, !3}
!llvm.ident = !{!4}

!0 = !{i32 1, !"wchar_size", i32 4}
!1 = !{i32 8, !"PIC Level", i32 2}
!2 = !{i32 7, !"PIE Level", i32 2}
!3 = !{i32 7, !"uwtable", i32 2}
!4 = !{!"clang version 19.1.0 (git@github.com:llvm/llvm-project.git a4bf6cd7cfb1a1421ba92bca9d017b49936c55e4)"}
!5 = !{!6, !7, i64 24}
!6 = !{!"sglib_dllist_iterator", !7, i64 0, !7, i64 8, !7, i64 16, !7, i64 24, !7, i64 32}
!7 = !{!"any pointer", !8, i64 0}
!8 = !{!"omnipotent char", !9, i64 0}
!9 = !{!"Simple C/C++ TBAA"}
!10 = !{!6, !7, i64 32}
!11 = !{!6, !7, i64 8}
!12 = !{!6, !7, i64 16}
!13 = !{!14, !7, i64 8}
!14 = !{!"dllist", !15, i64 0, !7, i64 8, !7, i64 16}
!15 = !{!"int", !8, i64 0}


; Effective O3 passes: CorrelatedValuePropagationPass,EarlyCSEPass,GlobalOptPass,InstCombinePass,SROAPass,TailCallElimPass