; LLVM IR from ahr9n/psolving-paradigms :: 4.dynamic-programming/04.knapsack/AtCoder dp_d - Knapsack 1.ll (Z3solix)

; 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"

@n = external dso_local global i32, align 4
@a = external dso_local global [109 x [2 x i64]], align 16
@dp = external dso_local global [109 x [100009 x i64]], align 16

; Function Attrs: mustprogress uwtable
define dso_local noundef i64 @_Z3solix(i32 noundef %0, i64 noundef %1) #0 {
  %3 = alloca i64, align 8
  %4 = alloca i32, align 4
  %5 = alloca i64, align 8
  %6 = alloca ptr, align 8
  %7 = alloca i32, align 4
  %8 = alloca i64, align 8
  %9 = alloca i64, align 8
  store i32 %0, ptr %4, align 4, !tbaa !5
  store i64 %1, ptr %5, align 8, !tbaa !9
  %10 = load i64, ptr %5, align 8, !tbaa !9
  %11 = icmp slt i64 %10, 0
  br i1 %11, label %12, label %13

12:                                               ; preds = %2
  store i64 -1000000000, ptr %3, align 8
  br label %56

13:                                               ; preds = %2
  %14 = load i32, ptr %4, align 4, !tbaa !5
  %15 = load i32, ptr @n, align 4, !tbaa !5
  %16 = icmp eq i32 %14, %15
  br i1 %16, label %17, label %18

17:                                               ; preds = %13
  store i64 0, ptr %3, align 8
  br label %56

18:                                               ; preds = %13
  call void @llvm.lifetime.start.p0(i64 8, ptr %6) #3
  %19 = load i32, ptr %4, align 4, !tbaa !5
  %20 = sext i32 %19 to i64
  %21 = getelementptr inbounds [109 x [100009 x i64]], ptr @dp, i64 0, i64 %20
  %22 = load i64, ptr %5, align 8, !tbaa !9
  %23 = getelementptr inbounds [100009 x i64], ptr %21, i64 0, i64 %22
  store ptr %23, ptr %6, align 8, !tbaa !11
  %24 = load ptr, ptr %6, align 8, !tbaa !11
  %25 = load i64, ptr %24, align 8, !tbaa !9
  %26 = xor i64 %25, -1
  %27 = icmp ne i64 %26, 0
  br i1 %27, label %28, label %31

28:                                               ; preds = %18
  %29 = load ptr, ptr %6, align 8, !tbaa !11
  %30 = load i64, ptr %29, align 8, !tbaa !9
  store i64 %30, ptr %3, align 8
  store i32 1, ptr %7, align 4
  br label %55

31:                                               ; preds = %18
  call void @llvm.lifetime.start.p0(i64 8, ptr %8) #3
  %32 = load i32, ptr %4, align 4, !tbaa !5
  %33 = sext i32 %32 to i64
  %34 = getelementptr inbounds [109 x [2 x i64]], ptr @a, i64 0, i64 %33
  %35 = getelementptr inbounds [2 x i64], ptr %34, i64 0, i64 1
  %36 = load i64, ptr %35, align 8, !tbaa !9
  %37 = load i32, ptr %4, align 4, !tbaa !5
  %38 = add nsw i32 %37, 1
  %39 = load i64, ptr %5, align 8, !tbaa !9
  %40 = load i32, ptr %4, align 4, !tbaa !5
  %41 = sext i32 %40 to i64
  %42 = getelementptr inbounds [109 x [2 x i64]], ptr @a, i64 0, i64 %41
  %43 = getelementptr inbounds [2 x i64], ptr %42, i64 0, i64 0
  %44 = load i64, ptr %43, align 16, !tbaa !9
  %45 = sub nsw i64 %39, %44
  %46 = call noundef i64 @_Z3solix(i32 noundef %38, i64 noundef %45)
  %47 = add nsw i64 %36, %46
  store i64 %47, ptr %8, align 8, !tbaa !9
  call void @llvm.lifetime.start.p0(i64 8, ptr %9) #3
  %48 = load i32, ptr %4, align 4, !tbaa !5
  %49 = add nsw i32 %48, 1
  %50 = load i64, ptr %5, align 8, !tbaa !9
  %51 = call noundef i64 @_Z3solix(i32 noundef %49, i64 noundef %50)
  store i64 %51, ptr %9, align 8, !tbaa !9
  %52 = call noundef nonnull align 8 dereferenceable(8) ptr @_ZSt3maxIxERKT_S2_S2_(ptr noundef nonnull align 8 dereferenceable(8) %8, ptr noundef nonnull align 8 dereferenceable(8) %9)
  %53 = load i64, ptr %52, align 8, !tbaa !9
  %54 = load ptr, ptr %6, align 8, !tbaa !11
  store i64 %53, ptr %54, align 8, !tbaa !9
  store i64 %53, ptr %3, align 8
  call void @llvm.lifetime.end.p0(i64 8, ptr %9) #3
  call void @llvm.lifetime.end.p0(i64 8, ptr %8) #3
  store i32 1, ptr %7, align 4
  br label %55

55:                                               ; preds = %31, %28
  call void @llvm.lifetime.end.p0(i64 8, ptr %6) #3
  br label %56

56:                                               ; preds = %55, %17, %12
  %57 = load i64, ptr %3, align 8
  ret i64 %57
}

; 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 8 dereferenceable(8) ptr @_ZSt3maxIxERKT_S2_S2_(ptr noundef nonnull align 8 dereferenceable(8), ptr noundef nonnull align 8 dereferenceable(8)) #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 = !{!"long long", !7, i64 0}
!11 = !{!12, !12, i64 0}
!12 = !{!"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"

@n = external dso_local local_unnamed_addr global i32, align 4
@a = external dso_local local_unnamed_addr global [109 x [2 x i64]], align 16
@dp = external dso_local local_unnamed_addr global [109 x [100009 x i64]], align 16

; Function Attrs: mustprogress nounwind uwtable
define dso_local noundef i64 @_Z3solix(i32 noundef %0, i64 noundef %1) local_unnamed_addr #0 {
  %3 = alloca i64, align 8
  %4 = alloca i64, align 8
  %5 = icmp slt i64 %1, 0
  br i1 %5, label %common.ret15, label %6

6:                                                ; preds = %2
  %7 = load i32, ptr @n, align 4, !tbaa !5
  %8 = icmp eq i32 %7, %0
  br i1 %8, label %common.ret15, label %9

9:                                                ; preds = %6
  %10 = sext i32 %0 to i64
  %11 = getelementptr inbounds [109 x [100009 x i64]], ptr @dp, i64 0, i64 %10, i64 %1
  %12 = load i64, ptr %11, align 8, !tbaa !9
  %.not = icmp eq i64 %12, -1
  br i1 %.not, label %13, label %common.ret15

common.ret15:                                     ; preds = %9, %6, %2, %13
  %common.ret15.op = phi i64 [ %24, %13 ], [ -1000000000, %2 ], [ 0, %6 ], [ %12, %9 ]
  ret i64 %common.ret15.op

13:                                               ; preds = %9
  call void @llvm.lifetime.start.p0(i64 8, ptr nonnull %3) #3
  %14 = getelementptr inbounds [109 x [2 x i64]], ptr @a, i64 0, i64 %10
  %15 = getelementptr inbounds i8, ptr %14, i64 8
  %16 = load i64, ptr %15, align 8, !tbaa !9
  %17 = add nsw i32 %0, 1
  %18 = load i64, ptr %14, align 16, !tbaa !9
  %19 = sub nsw i64 %1, %18
  %20 = tail call noundef i64 @_Z3solix(i32 noundef %17, i64 noundef %19)
  %21 = add nsw i64 %20, %16
  store i64 %21, ptr %3, align 8, !tbaa !9
  call void @llvm.lifetime.start.p0(i64 8, ptr nonnull %4) #3
  %22 = tail call noundef i64 @_Z3solix(i32 noundef %17, i64 noundef %1)
  store i64 %22, ptr %4, align 8, !tbaa !9
  %23 = call noundef nonnull align 8 dereferenceable(8) ptr @_ZSt3maxIxERKT_S2_S2_(ptr noundef nonnull align 8 dereferenceable(8) %3, ptr noundef nonnull align 8 dereferenceable(8) %4)
  %24 = load i64, ptr %23, align 8, !tbaa !9
  store i64 %24, ptr %11, align 8, !tbaa !9
  call void @llvm.lifetime.end.p0(i64 8, ptr nonnull %4) #3
  call void @llvm.lifetime.end.p0(i64 8, ptr nonnull %3) #3
  br label %common.ret15
}

; 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 8 dereferenceable(8) ptr @_ZSt3maxIxERKT_S2_S2_(ptr noundef nonnull align 8 dereferenceable(8), ptr noundef nonnull align 8 dereferenceable(8)) 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"}
!9 = !{!10, !10, i64 0}
!10 = !{!"long long", !7, i64 0}


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