; LLVM IR from int32bit/leetcode :: algorithms/HouseRobberII (src)

; 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"

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

; Function Attrs: inlinehint nounwind uwtable
declare hidden i32 @max(i32 noundef, i32 noundef) #1

; Function Attrs: nounwind uwtable
define dso_local i32 @rob(ptr noundef %0, i32 noundef %1) #0 {
  %3 = alloca i32, align 4
  %4 = alloca ptr, align 8
  %5 = alloca i32, align 4
  store ptr %0, ptr %4, align 8, !tbaa !5
  store i32 %1, ptr %5, align 4, !tbaa !9
  %6 = load ptr, ptr %4, align 8, !tbaa !5
  %7 = icmp eq ptr %6, null
  br i1 %7, label %11, label %8

8:                                                ; preds = %2
  %9 = load i32, ptr %5, align 4, !tbaa !9
  %10 = icmp sle i32 %9, 0
  br i1 %10, label %11, label %12

11:                                               ; preds = %8, %2
  store i32 0, ptr %3, align 4
  br label %30

12:                                               ; preds = %8
  %13 = load i32, ptr %5, align 4, !tbaa !9
  %14 = icmp eq i32 %13, 1
  br i1 %14, label %15, label %19

15:                                               ; preds = %12
  %16 = load ptr, ptr %4, align 8, !tbaa !5
  %17 = getelementptr inbounds i32, ptr %16, i64 0
  %18 = load i32, ptr %17, align 4, !tbaa !9
  store i32 %18, ptr %3, align 4
  br label %30

19:                                               ; preds = %12
  %20 = load ptr, ptr %4, align 8, !tbaa !5
  %21 = load i32, ptr %5, align 4, !tbaa !9
  %22 = sub nsw i32 %21, 1
  %23 = call i32 @robWithoutCircle(ptr noundef %20, i32 noundef %22)
  %24 = load ptr, ptr %4, align 8, !tbaa !5
  %25 = getelementptr inbounds i32, ptr %24, i64 1
  %26 = load i32, ptr %5, align 4, !tbaa !9
  %27 = sub nsw i32 %26, 1
  %28 = call i32 @robWithoutCircle(ptr noundef %25, i32 noundef %27)
  %29 = call i32 @max(i32 noundef %23, i32 noundef %28)
  store i32 %29, ptr %3, align 4
  br label %30

30:                                               ; preds = %19, %15, %11
  %31 = load i32, ptr %3, align 4
  ret i32 %31
}

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 = { inlinehint 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, !10, i64 0}
!10 = !{!"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
declare dso_local i32 @robWithoutCircle(ptr noundef, i32 noundef) local_unnamed_addr #0

; Function Attrs: inlinehint nounwind uwtable
declare hidden i32 @max(i32 noundef, i32 noundef) local_unnamed_addr #1

; Function Attrs: nounwind uwtable
define dso_local i32 @rob(ptr noundef %0, i32 noundef %1) local_unnamed_addr #0 {
  %3 = icmp eq ptr %0, null
  %4 = icmp slt i32 %1, 1
  %or.cond = or i1 %3, %4
  br i1 %or.cond, label %15, label %5

5:                                                ; preds = %2
  %6 = icmp eq i32 %1, 1
  br i1 %6, label %7, label %9

7:                                                ; preds = %5
  %8 = load i32, ptr %0, align 4, !tbaa !5
  br label %15

9:                                                ; preds = %5
  %10 = add nsw i32 %1, -1
  %11 = tail call i32 @robWithoutCircle(ptr noundef nonnull %0, i32 noundef %10)
  %12 = getelementptr inbounds i8, ptr %0, i64 4
  %13 = tail call i32 @robWithoutCircle(ptr noundef nonnull %12, i32 noundef %10)
  %14 = tail call i32 @max(i32 noundef %11, i32 noundef %13)
  br label %15

15:                                               ; preds = %2, %9, %7
  %.0 = phi i32 [ %8, %7 ], [ %14, %9 ], [ 0, %2 ]
  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 = { inlinehint 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 = !{!"int", !7, i64 0}
!7 = !{!"omnipotent char", !8, i64 0}
!8 = !{!"Simple C/C++ TBAA"}


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