; LLVM IR from wgtdkp/wgtcc :: test/data-structure (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"

@.str.3 = external hidden unnamed_addr constant [13 x i8], align 1

; Function Attrs: nounwind uwtable
declare dso_local ptr @list_insert(ptr noundef, i32 noundef) #0

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

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

; Function Attrs: nounwind uwtable
declare dso_local ptr @list_find(ptr noundef, i32 noundef) #0

; Function Attrs: nounwind uwtable
declare dso_local ptr @list_delete(ptr noundef, i32 noundef) #0

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

declare i32 @printf(ptr noundef, ...) #2

; Function Attrs: nounwind uwtable
define dso_local i32 @main() #0 {
  %1 = alloca i32, align 4
  %2 = alloca ptr, align 8
  %3 = alloca i32, align 4
  %4 = alloca ptr, align 8
  store i32 0, ptr %1, align 4
  call void @llvm.lifetime.start.p0(i64 8, ptr %2) #3
  %5 = call ptr @list_insert(ptr noundef null, i32 noundef 0)
  store ptr %5, ptr %2, align 8, !tbaa !5
  call void @llvm.lifetime.start.p0(i64 4, ptr %3) #3
  store i32 9, ptr %3, align 4, !tbaa !9
  br label %6

6:                                                ; preds = %14, %0
  %7 = load i32, ptr %3, align 4, !tbaa !9
  %8 = icmp sgt i32 %7, 0
  br i1 %8, label %10, label %9

9:                                                ; preds = %6
  call void @llvm.lifetime.end.p0(i64 4, ptr %3) #3
  br label %17

10:                                               ; preds = %6
  %11 = load ptr, ptr %2, align 8, !tbaa !5
  %12 = load i32, ptr %3, align 4, !tbaa !9
  %13 = call ptr @list_insert(ptr noundef %11, i32 noundef %12)
  br label %14

14:                                               ; preds = %10
  %15 = load i32, ptr %3, align 4, !tbaa !9
  %16 = add nsw i32 %15, -1
  store i32 %16, ptr %3, align 4, !tbaa !9
  br label %6, !llvm.loop !11

17:                                               ; preds = %9
  %18 = load ptr, ptr %2, align 8, !tbaa !5
  call void @list_print(ptr noundef %18)
  call void @llvm.lifetime.start.p0(i64 8, ptr %4) #3
  %19 = load ptr, ptr %2, align 8, !tbaa !5
  %20 = call ptr @list_find(ptr noundef %19, i32 noundef 5)
  store ptr %20, ptr %4, align 8, !tbaa !5
  %21 = load ptr, ptr %4, align 8, !tbaa !5
  %22 = call i32 (ptr, ...) @printf(ptr noundef @.str.3, ptr noundef %21)
  %23 = load ptr, ptr %2, align 8, !tbaa !5
  %24 = call ptr @list_delete(ptr noundef %23, i32 noundef 6)
  store ptr %24, ptr %2, align 8, !tbaa !5
  %25 = load ptr, ptr %2, align 8, !tbaa !5
  call void @list_print(ptr noundef %25)
  call void @llvm.lifetime.end.p0(i64 8, ptr %4) #3
  call void @llvm.lifetime.end.p0(i64 8, ptr %2) #3
  ret i32 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" }
attributes #1 = { nocallback nofree nosync nounwind willreturn memory(argmem: readwrite) }
attributes #2 = { "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 }

!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, !10, i64 0}
!10 = !{!"int", !7, i64 0}
!11 = distinct !{!11, !12}
!12 = !{!"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"

@.str.3 = external hidden unnamed_addr constant [13 x i8], align 1

; Function Attrs: nounwind uwtable
declare dso_local ptr @list_insert(ptr noundef, i32 noundef) local_unnamed_addr #0

; Function Attrs: nounwind uwtable
declare dso_local ptr @list_find(ptr noundef, i32 noundef) local_unnamed_addr #0

; Function Attrs: nounwind uwtable
declare dso_local ptr @list_delete(ptr noundef, i32 noundef) local_unnamed_addr #0

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

; Function Attrs: nofree nounwind
declare noundef i32 @printf(ptr nocapture noundef readonly, ...) local_unnamed_addr #1

; Function Attrs: nounwind uwtable
define dso_local noundef i32 @main() local_unnamed_addr #0 {
  %1 = tail call ptr @list_insert(ptr noundef null, i32 noundef 0)
  %2 = tail call ptr @list_insert(ptr noundef %1, i32 noundef 9)
  %3 = tail call ptr @list_insert(ptr noundef %1, i32 noundef 8)
  %4 = tail call ptr @list_insert(ptr noundef %1, i32 noundef 7)
  %5 = tail call ptr @list_insert(ptr noundef %1, i32 noundef 6)
  %6 = tail call ptr @list_insert(ptr noundef %1, i32 noundef 5)
  %7 = tail call ptr @list_insert(ptr noundef %1, i32 noundef 4)
  %8 = tail call ptr @list_insert(ptr noundef %1, i32 noundef 3)
  %9 = tail call ptr @list_insert(ptr noundef %1, i32 noundef 2)
  %10 = tail call ptr @list_insert(ptr noundef %1, i32 noundef 1)
  tail call void @list_print(ptr noundef %1)
  %11 = tail call ptr @list_find(ptr noundef %1, i32 noundef 5)
  %12 = tail call i32 (ptr, ...) @printf(ptr noundef nonnull dereferenceable(1) @.str.3, ptr noundef %11)
  %13 = tail call ptr @list_delete(ptr noundef %1, i32 noundef 6)
  tail call void @list_print(ptr noundef %13)
  ret i32 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" }
attributes #1 = { nofree nounwind "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)"}


; Effective O3 passes: GVNPass,GlobalOptPass,IndVarSimplifyPass,InferFunctionAttrsPass,InstCombinePass,LoopRotatePass,PostOrderFunctionAttrsPass,SROAPass,SimplifyCFGPass,TailCallElimPass