; LLVM IR from brpapa/algorithms :: solutions/uri/1487.ll (Z4ksTDii)

; 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"

@weight = external dso_local global [101 x i32], align 16
@value = external dso_local global [101 x i32], align 16
@memo = external dso_local global [601 x [101 x i32]], align 16

; Function Attrs: mustprogress uwtable
define dso_local noundef i32 @_Z4ksTDii(i32 noundef %0, i32 noundef %1) #0 {
  %3 = alloca i32, align 4
  %4 = alloca i32, align 4
  %5 = alloca i32, align 4
  %6 = alloca ptr, align 8
  %7 = alloca i32, align 4
  %8 = alloca i32, align 4
  %9 = alloca i32, align 4
  store i32 %0, ptr %4, align 4, !tbaa !5
  store i32 %1, ptr %5, align 4, !tbaa !5
  %10 = load i32, ptr %4, align 4, !tbaa !5
  %11 = icmp eq i32 %10, -1
  br i1 %11, label %12, label %13

12:                                               ; preds = %2
  store i32 0, ptr %3, align 4
  br label %61

13:                                               ; preds = %2
  call void @llvm.lifetime.start.p0(i64 8, ptr %6) #3
  %14 = load i32, ptr %5, align 4, !tbaa !5
  %15 = sext i32 %14 to i64
  %16 = getelementptr inbounds [601 x [101 x i32]], ptr @memo, i64 0, i64 %15
  %17 = load i32, ptr %4, align 4, !tbaa !5
  %18 = sext i32 %17 to i64
  %19 = getelementptr inbounds [101 x i32], ptr %16, i64 0, i64 %18
  store ptr %19, ptr %6, align 8, !tbaa !9
  %20 = load ptr, ptr %6, align 8, !tbaa !9
  %21 = load i32, ptr %20, align 4, !tbaa !5
  %22 = icmp ne i32 %21, -1
  br i1 %22, label %23, label %26

23:                                               ; preds = %13
  %24 = load ptr, ptr %6, align 8, !tbaa !9
  %25 = load i32, ptr %24, align 4, !tbaa !5
  store i32 %25, ptr %3, align 4
  store i32 1, ptr %7, align 4
  br label %60

26:                                               ; preds = %13
  %27 = load i32, ptr %4, align 4, !tbaa !5
  %28 = sext i32 %27 to i64
  %29 = getelementptr inbounds [101 x i32], ptr @weight, i64 0, i64 %28
  %30 = load i32, ptr %29, align 4, !tbaa !5
  %31 = load i32, ptr %5, align 4, !tbaa !5
  %32 = icmp sgt i32 %30, %31
  br i1 %32, label %33, label %39

33:                                               ; preds = %26
  %34 = load i32, ptr %4, align 4, !tbaa !5
  %35 = sub nsw i32 %34, 1
  %36 = load i32, ptr %5, align 4, !tbaa !5
  %37 = call noundef i32 @_Z4ksTDii(i32 noundef %35, i32 noundef %36)
  %38 = load ptr, ptr %6, align 8, !tbaa !9
  store i32 %37, ptr %38, align 4, !tbaa !5
  store i32 %37, ptr %3, align 4
  store i32 1, ptr %7, align 4
  br label %60

39:                                               ; preds = %26
  call void @llvm.lifetime.start.p0(i64 4, ptr %8) #3
  %40 = load i32, ptr %4, align 4, !tbaa !5
  %41 = sub nsw i32 %40, 1
  %42 = load i32, ptr %5, align 4, !tbaa !5
  %43 = call noundef i32 @_Z4ksTDii(i32 noundef %41, i32 noundef %42)
  store i32 %43, ptr %8, align 4, !tbaa !5
  call void @llvm.lifetime.start.p0(i64 4, ptr %9) #3
  %44 = load i32, ptr %4, align 4, !tbaa !5
  %45 = sext i32 %44 to i64
  %46 = getelementptr inbounds [101 x i32], ptr @value, i64 0, i64 %45
  %47 = load i32, ptr %46, align 4, !tbaa !5
  %48 = load i32, ptr %4, align 4, !tbaa !5
  %49 = load i32, ptr %5, align 4, !tbaa !5
  %50 = load i32, ptr %4, align 4, !tbaa !5
  %51 = sext i32 %50 to i64
  %52 = getelementptr inbounds [101 x i32], ptr @weight, i64 0, i64 %51
  %53 = load i32, ptr %52, align 4, !tbaa !5
  %54 = sub nsw i32 %49, %53
  %55 = call noundef i32 @_Z4ksTDii(i32 noundef %48, i32 noundef %54)
  %56 = add nsw i32 %47, %55
  store i32 %56, ptr %9, align 4, !tbaa !5
  %57 = call noundef nonnull align 4 dereferenceable(4) ptr @_ZSt3maxIiERKT_S2_S2_(ptr noundef nonnull align 4 dereferenceable(4) %8, ptr noundef nonnull align 4 dereferenceable(4) %9)
  %58 = load i32, ptr %57, align 4, !tbaa !5
  %59 = load ptr, ptr %6, align 8, !tbaa !9
  store i32 %58, ptr %59, align 4, !tbaa !5
  store i32 %58, ptr %3, align 4
  call void @llvm.lifetime.end.p0(i64 4, ptr %9) #3
  call void @llvm.lifetime.end.p0(i64 4, ptr %8) #3
  store i32 1, ptr %7, align 4
  br label %60

60:                                               ; preds = %39, %33, %23
  call void @llvm.lifetime.end.p0(i64 8, ptr %6) #3
  br label %61

61:                                               ; preds = %60, %12
  %62 = load i32, ptr %3, align 4
  ret i32 %62
}

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

; Function Attrs: inlinehint mustprogress nounwind uwtable
declare dso_local noundef nonnull align 4 dereferenceable(4) ptr @_ZSt3maxIiERKT_S2_S2_(ptr noundef nonnull align 4 dereferenceable(4), ptr noundef nonnull align 4 dereferenceable(4)) #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 = { inlinehint mustprogress 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 #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 = !{!"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}


; 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"

@weight = external dso_local local_unnamed_addr global [101 x i32], align 16
@value = external dso_local local_unnamed_addr global [101 x i32], align 16
@memo = external dso_local local_unnamed_addr global [601 x [101 x i32]], align 16

; Function Attrs: mustprogress nounwind uwtable
define dso_local noundef i32 @_Z4ksTDii(i32 noundef %0, i32 noundef %1) local_unnamed_addr #0 {
  %3 = alloca i32, align 4
  %4 = alloca i32, align 4
  %5 = icmp eq i32 %0, -1
  br i1 %5, label %common.ret21, label %6

6:                                                ; preds = %2
  %7 = sext i32 %1 to i64
  %8 = sext i32 %0 to i64
  %9 = getelementptr inbounds [601 x [101 x i32]], ptr @memo, i64 0, i64 %7, i64 %8
  %10 = load i32, ptr %9, align 4, !tbaa !5
  %.not = icmp eq i32 %10, -1
  br i1 %.not, label %11, label %common.ret21

11:                                               ; preds = %6
  %12 = getelementptr inbounds [101 x i32], ptr @weight, i64 0, i64 %8
  %13 = load i32, ptr %12, align 4, !tbaa !5
  %14 = icmp sgt i32 %13, %1
  br i1 %14, label %15, label %18

common.ret21:                                     ; preds = %6, %2, %18, %15
  %common.ret21.op = phi i32 [ %17, %15 ], [ %28, %18 ], [ 0, %2 ], [ %10, %6 ]
  ret i32 %common.ret21.op

15:                                               ; preds = %11
  %16 = add nsw i32 %0, -1
  %17 = tail call noundef i32 @_Z4ksTDii(i32 noundef %16, i32 noundef %1)
  store i32 %17, ptr %9, align 4, !tbaa !5
  br label %common.ret21

18:                                               ; preds = %11
  call void @llvm.lifetime.start.p0(i64 4, ptr nonnull %3) #3
  %19 = add nsw i32 %0, -1
  %20 = tail call noundef i32 @_Z4ksTDii(i32 noundef %19, i32 noundef %1)
  store i32 %20, ptr %3, align 4, !tbaa !5
  call void @llvm.lifetime.start.p0(i64 4, ptr nonnull %4) #3
  %21 = getelementptr inbounds [101 x i32], ptr @value, i64 0, i64 %8
  %22 = load i32, ptr %21, align 4, !tbaa !5
  %23 = load i32, ptr %12, align 4, !tbaa !5
  %24 = sub nsw i32 %1, %23
  %25 = tail call noundef i32 @_Z4ksTDii(i32 noundef %0, i32 noundef %24)
  %26 = add nsw i32 %25, %22
  store i32 %26, ptr %4, align 4, !tbaa !5
  %27 = call noundef nonnull align 4 dereferenceable(4) ptr @_ZSt3maxIiERKT_S2_S2_(ptr noundef nonnull align 4 dereferenceable(4) %3, ptr noundef nonnull align 4 dereferenceable(4) %4)
  %28 = load i32, ptr %27, align 4, !tbaa !5
  store i32 %28, ptr %9, align 4, !tbaa !5
  call void @llvm.lifetime.end.p0(i64 4, ptr nonnull %4) #3
  call void @llvm.lifetime.end.p0(i64 4, ptr nonnull %3) #3
  br label %common.ret21
}

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

; Function Attrs: inlinehint mustprogress nounwind uwtable
declare dso_local noundef nonnull align 4 dereferenceable(4) ptr @_ZSt3maxIiERKT_S2_S2_(ptr noundef nonnull align 4 dereferenceable(4), ptr noundef nonnull align 4 dereferenceable(4)) local_unnamed_addr #2

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

attributes #0 = { mustprogress 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 = { mustprogress nocallback nofree nosync nounwind willreturn memory(argmem: readwrite) }
attributes #2 = { inlinehint mustprogress 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 #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 = !{!"int", !7, i64 0}
!7 = !{!"omnipotent char", !8, i64 0}
!8 = !{!"Simple C++ TBAA"}


; Effective O3 passes: EarlyCSEPass,GlobalOptPass,InferFunctionAttrsPass,InstCombinePass,PostOrderFunctionAttrsPass,ReassociatePass,SROAPass,SimplifyCFGPass,TailCallElimPass