; LLVM IR from Py-Contributors/AlgorithmsAndDataStructure :: C++/Data Structure/Linked List/sparse_matrix.ll (Z17create_value_nodeiiPP8row_list)

; 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"

%class.value_list = type { i32, i32, ptr }
%class.row_list = type { i32, ptr, ptr }

; Function Attrs: mustprogress uwtable
define dso_local void @_Z17create_value_nodeiiPP8row_list(i32 noundef %0, i32 noundef %1, ptr noundef %2) #0 {
  %4 = alloca i32, align 4
  %5 = alloca i32, align 4
  %6 = alloca ptr, align 8
  %7 = alloca ptr, align 8
  %8 = alloca ptr, align 8
  store i32 %0, ptr %4, align 4, !tbaa !5
  store i32 %1, ptr %5, align 4, !tbaa !5
  store ptr %2, ptr %6, align 8, !tbaa !9
  call void @llvm.lifetime.start.p0(i64 8, ptr %7) #3
  call void @llvm.lifetime.start.p0(i64 8, ptr %8) #3
  %9 = call noalias noundef nonnull ptr @_Znwm(i64 noundef 16) #4
  store ptr %9, ptr %7, align 8, !tbaa !9
  %10 = load i32, ptr %5, align 4, !tbaa !5
  %11 = add nsw i32 %10, 1
  %12 = load ptr, ptr %7, align 8, !tbaa !9
  %13 = getelementptr inbounds %class.value_list, ptr %12, i32 0, i32 0
  store i32 %11, ptr %13, align 8, !tbaa !11
  %14 = load i32, ptr %4, align 4, !tbaa !5
  %15 = load ptr, ptr %7, align 8, !tbaa !9
  %16 = getelementptr inbounds %class.value_list, ptr %15, i32 0, i32 1
  store i32 %14, ptr %16, align 4, !tbaa !13
  %17 = load ptr, ptr %7, align 8, !tbaa !9
  %18 = getelementptr inbounds %class.value_list, ptr %17, i32 0, i32 2
  store ptr null, ptr %18, align 8, !tbaa !14
  %19 = load ptr, ptr %6, align 8, !tbaa !9
  %20 = load ptr, ptr %19, align 8, !tbaa !9
  %21 = getelementptr inbounds %class.row_list, ptr %20, i32 0, i32 2
  %22 = load ptr, ptr %21, align 8, !tbaa !15
  %23 = icmp eq ptr %22, null
  br i1 %23, label %24, label %29

24:                                               ; preds = %3
  %25 = load ptr, ptr %7, align 8, !tbaa !9
  %26 = load ptr, ptr %6, align 8, !tbaa !9
  %27 = load ptr, ptr %26, align 8, !tbaa !9
  %28 = getelementptr inbounds %class.row_list, ptr %27, i32 0, i32 2
  store ptr %25, ptr %28, align 8, !tbaa !15
  br label %47

29:                                               ; preds = %3
  %30 = load ptr, ptr %6, align 8, !tbaa !9
  %31 = load ptr, ptr %30, align 8, !tbaa !9
  %32 = getelementptr inbounds %class.row_list, ptr %31, i32 0, i32 2
  %33 = load ptr, ptr %32, align 8, !tbaa !15
  store ptr %33, ptr %8, align 8, !tbaa !9
  br label %34

34:                                               ; preds = %39, %29
  %35 = load ptr, ptr %8, align 8, !tbaa !9
  %36 = getelementptr inbounds %class.value_list, ptr %35, i32 0, i32 2
  %37 = load ptr, ptr %36, align 8, !tbaa !14
  %38 = icmp ne ptr %37, null
  br i1 %38, label %39, label %43

39:                                               ; preds = %34
  %40 = load ptr, ptr %8, align 8, !tbaa !9
  %41 = getelementptr inbounds %class.value_list, ptr %40, i32 0, i32 2
  %42 = load ptr, ptr %41, align 8, !tbaa !14
  store ptr %42, ptr %8, align 8, !tbaa !9
  br label %34, !llvm.loop !17

43:                                               ; preds = %34
  %44 = load ptr, ptr %7, align 8, !tbaa !9
  %45 = load ptr, ptr %8, align 8, !tbaa !9
  %46 = getelementptr inbounds %class.value_list, ptr %45, i32 0, i32 2
  store ptr %44, ptr %46, align 8, !tbaa !14
  br label %47

47:                                               ; preds = %43, %24
  call void @llvm.lifetime.end.p0(i64 8, ptr %8) #3
  call void @llvm.lifetime.end.p0(i64 8, ptr %7) #3
  ret void
}

; Function Attrs: nocallback nofree nosync nounwind willreturn memory(argmem: readwrite)
declare void @llvm.lifetime.start.p0(i64 immarg, ptr nocapture) #1

; Function Attrs: nobuiltin allocsize(0)
declare noundef nonnull ptr @_Znwm(i64 noundef) #2

; Function Attrs: nocallback nofree nosync nounwind willreturn memory(argmem: readwrite)
declare void @llvm.lifetime.end.p0(i64 immarg, ptr nocapture) #1

attributes #0 = { mustprogress 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" }
attributes #1 = { nocallback nofree nosync nounwind willreturn memory(argmem: readwrite) }
attributes #2 = { nobuiltin allocsize(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" }
attributes #3 = { nounwind }
attributes #4 = { builtin allocsize(0) }

!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 = !{!"int", !7, i64 0}
!7 = !{!"omnipotent char", !8, i64 0}
!8 = !{!"Simple C++ TBAA"}
!9 = !{!10, !10, i64 0}
!10 = !{!"any pointer", !7, i64 0}
!11 = !{!12, !6, i64 0}
!12 = !{!"_ZTS10value_list", !6, i64 0, !6, i64 4, !10, i64 8}
!13 = !{!12, !6, i64 4}
!14 = !{!12, !10, i64 8}
!15 = !{!16, !10, i64 16}
!16 = !{!"_ZTS8row_list", !6, i64 0, !10, i64 8, !10, i64 16}
!17 = distinct !{!17, !18}
!18 = !{!"llvm.loop.mustprogress"}


; 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: mustprogress uwtable
define dso_local void @_Z17create_value_nodeiiPP8row_list(i32 noundef %0, i32 noundef %1, ptr nocapture noundef readonly %2) local_unnamed_addr #0 {
  %4 = tail call noalias noundef nonnull dereferenceable(16) ptr @_Znwm(i64 noundef 16) #2
  %5 = add nsw i32 %1, 1
  store i32 %5, ptr %4, align 8, !tbaa !5
  %6 = getelementptr inbounds i8, ptr %4, i64 4
  store i32 %0, ptr %6, align 4, !tbaa !11
  %7 = getelementptr inbounds i8, ptr %4, i64 8
  store ptr null, ptr %7, align 8, !tbaa !12
  %8 = load ptr, ptr %2, align 8, !tbaa !13
  %9 = getelementptr inbounds i8, ptr %8, i64 16
  %10 = load ptr, ptr %9, align 8, !tbaa !14
  %11 = icmp eq ptr %10, null
  br i1 %11, label %16, label %.preheader

.preheader:                                       ; preds = %3, %.preheader
  %.0 = phi ptr [ %13, %.preheader ], [ %10, %3 ]
  %12 = getelementptr inbounds i8, ptr %.0, i64 8
  %13 = load ptr, ptr %12, align 8, !tbaa !12
  %.not = icmp eq ptr %13, null
  br i1 %.not, label %14, label %.preheader, !llvm.loop !16

14:                                               ; preds = %.preheader
  %15 = getelementptr inbounds i8, ptr %.0, i64 8
  br label %16

16:                                               ; preds = %3, %14
  %.sink = phi ptr [ %15, %14 ], [ %9, %3 ]
  store ptr %4, ptr %.sink, align 8, !tbaa !13
  ret void
}

; Function Attrs: nobuiltin allocsize(0)
declare noundef nonnull ptr @_Znwm(i64 noundef) local_unnamed_addr #1

attributes #0 = { mustprogress 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" }
attributes #1 = { nobuiltin allocsize(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" }
attributes #2 = { builtin allocsize(0) }

!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 0}
!6 = !{!"_ZTS10value_list", !7, i64 0, !7, i64 4, !10, i64 8}
!7 = !{!"int", !8, i64 0}
!8 = !{!"omnipotent char", !9, i64 0}
!9 = !{!"Simple C++ TBAA"}
!10 = !{!"any pointer", !8, i64 0}
!11 = !{!6, !7, i64 4}
!12 = !{!6, !10, i64 8}
!13 = !{!10, !10, i64 0}
!14 = !{!15, !10, i64 16}
!15 = !{!"_ZTS8row_list", !7, i64 0, !10, i64 8, !10, i64 16}
!16 = distinct !{!16, !17}
!17 = !{!"llvm.loop.mustprogress"}


; Effective O3 passes: EarlyCSEPass,GVNPass,GlobalOptPass,InferFunctionAttrsPass,InstCombinePass,InstSimplifyPass,LCSSAPass,LICMPass,LoopSimplifyPass,LoopUnrollPass,PostOrderFunctionAttrsPass,SROAPass,SimplifyCFGPass,TailCallElimPass