; LLVM IR from ahr9n/psolving-paradigms :: 4.dynamic-programming/04.knapsack/AtCoder dp_c - Vacation.ll (Z3solii)

; 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
@abc = external dso_local global [100009 x [3 x i32]], align 16
@dp = external dso_local global [100009 x [3 x i32]], align 16

; Function Attrs: mustprogress uwtable
define dso_local noundef i32 @_Z3solii(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 = load i32, ptr @n, align 4, !tbaa !5
  %12 = sub nsw i32 %11, 1
  %13 = icmp eq i32 %10, %12
  br i1 %13, label %14, label %22

14:                                               ; preds = %2
  %15 = load i32, ptr %4, align 4, !tbaa !5
  %16 = sext i32 %15 to i64
  %17 = getelementptr inbounds [100009 x [3 x i32]], ptr @abc, i64 0, i64 %16
  %18 = load i32, ptr %5, align 4, !tbaa !5
  %19 = sext i32 %18 to i64
  %20 = getelementptr inbounds [3 x i32], ptr %17, i64 0, i64 %19
  %21 = load i32, ptr %20, align 4, !tbaa !5
  store i32 %21, ptr %3, align 4
  br label %69

22:                                               ; preds = %2
  call void @llvm.lifetime.start.p0(i64 8, ptr %6) #3
  %23 = load i32, ptr %4, align 4, !tbaa !5
  %24 = sext i32 %23 to i64
  %25 = getelementptr inbounds [100009 x [3 x i32]], ptr @dp, i64 0, i64 %24
  %26 = load i32, ptr %5, align 4, !tbaa !5
  %27 = sext i32 %26 to i64
  %28 = getelementptr inbounds [3 x i32], ptr %25, i64 0, i64 %27
  store ptr %28, ptr %6, align 8, !tbaa !9
  %29 = load ptr, ptr %6, align 8, !tbaa !9
  %30 = load i32, ptr %29, align 4, !tbaa !5
  %31 = xor i32 %30, -1
  %32 = icmp ne i32 %31, 0
  br i1 %32, label %33, label %36

33:                                               ; preds = %22
  %34 = load ptr, ptr %6, align 8, !tbaa !9
  %35 = load i32, ptr %34, align 4, !tbaa !5
  store i32 %35, ptr %3, align 4
  store i32 1, ptr %7, align 4
  br label %68

36:                                               ; preds = %22
  call void @llvm.lifetime.start.p0(i64 4, ptr %8) #3
  %37 = load i32, ptr %4, align 4, !tbaa !5
  %38 = sext i32 %37 to i64
  %39 = getelementptr inbounds [100009 x [3 x i32]], ptr @abc, i64 0, i64 %38
  %40 = load i32, ptr %5, align 4, !tbaa !5
  %41 = sext i32 %40 to i64
  %42 = getelementptr inbounds [3 x i32], ptr %39, i64 0, i64 %41
  %43 = load i32, ptr %42, align 4, !tbaa !5
  %44 = load i32, ptr %4, align 4, !tbaa !5
  %45 = add nsw i32 %44, 1
  %46 = load i32, ptr %5, align 4, !tbaa !5
  %47 = add nsw i32 %46, 1
  %48 = srem i32 %47, 3
  %49 = call noundef i32 @_Z3solii(i32 noundef %45, i32 noundef %48)
  %50 = add nsw i32 %43, %49
  store i32 %50, ptr %8, align 4, !tbaa !5
  call void @llvm.lifetime.start.p0(i64 4, ptr %9) #3
  %51 = load i32, ptr %4, align 4, !tbaa !5
  %52 = sext i32 %51 to i64
  %53 = getelementptr inbounds [100009 x [3 x i32]], ptr @abc, i64 0, i64 %52
  %54 = load i32, ptr %5, align 4, !tbaa !5
  %55 = sext i32 %54 to i64
  %56 = getelementptr inbounds [3 x i32], ptr %53, i64 0, i64 %55
  %57 = load i32, ptr %56, align 4, !tbaa !5
  %58 = load i32, ptr %4, align 4, !tbaa !5
  %59 = add nsw i32 %58, 1
  %60 = load i32, ptr %5, align 4, !tbaa !5
  %61 = add nsw i32 %60, 2
  %62 = srem i32 %61, 3
  %63 = call noundef i32 @_Z3solii(i32 noundef %59, i32 noundef %62)
  %64 = add nsw i32 %57, %63
  store i32 %64, ptr %9, align 4, !tbaa !5
  %65 = 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)
  %66 = load i32, ptr %65, align 4, !tbaa !5
  %67 = load ptr, ptr %6, align 8, !tbaa !9
  store i32 %66, ptr %67, align 4, !tbaa !5
  store i32 %66, 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 %68

68:                                               ; preds = %36, %33
  call void @llvm.lifetime.end.p0(i64 8, ptr %6) #3
  br label %69

69:                                               ; preds = %68, %14
  %70 = load i32, ptr %3, align 4
  ret i32 %70
}

; 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"

@n = external dso_local local_unnamed_addr global i32, align 4
@abc = external dso_local local_unnamed_addr global [100009 x [3 x i32]], align 16
@dp = external dso_local local_unnamed_addr global [100009 x [3 x i32]], align 16

; Function Attrs: mustprogress nounwind uwtable
define dso_local noundef i32 @_Z3solii(i32 noundef %0, i32 noundef %1) local_unnamed_addr #0 {
  %3 = alloca i32, align 4
  %4 = alloca i32, align 4
  %5 = load i32, ptr @n, align 4, !tbaa !5
  %6 = add nsw i32 %5, -1
  %7 = icmp eq i32 %6, %0
  %8 = sext i32 %0 to i64
  %9 = sext i32 %1 to i64
  br i1 %7, label %10, label %13

10:                                               ; preds = %2
  %11 = getelementptr inbounds [100009 x [3 x i32]], ptr @abc, i64 0, i64 %8, i64 %9
  %12 = load i32, ptr %11, align 4, !tbaa !5
  br label %common.ret18

13:                                               ; preds = %2
  %14 = getelementptr inbounds [100009 x [3 x i32]], ptr @dp, i64 0, i64 %8, i64 %9
  %15 = load i32, ptr %14, align 4, !tbaa !5
  %.not = icmp eq i32 %15, -1
  br i1 %.not, label %16, label %common.ret18

common.ret18:                                     ; preds = %13, %10, %16
  %common.ret18.op = phi i32 [ %30, %16 ], [ %12, %10 ], [ %15, %13 ]
  ret i32 %common.ret18.op

16:                                               ; preds = %13
  call void @llvm.lifetime.start.p0(i64 4, ptr nonnull %3) #3
  %17 = getelementptr inbounds [100009 x [3 x i32]], ptr @abc, i64 0, i64 %8, i64 %9
  %18 = load i32, ptr %17, align 4, !tbaa !5
  %19 = add nsw i32 %0, 1
  %20 = add nsw i32 %1, 1
  %21 = srem i32 %20, 3
  %22 = tail call noundef i32 @_Z3solii(i32 noundef %19, i32 noundef %21)
  %23 = add nsw i32 %22, %18
  store i32 %23, ptr %3, align 4, !tbaa !5
  call void @llvm.lifetime.start.p0(i64 4, ptr nonnull %4) #3
  %24 = load i32, ptr %17, align 4, !tbaa !5
  %25 = add nsw i32 %1, 2
  %26 = srem i32 %25, 3
  %27 = tail call noundef i32 @_Z3solii(i32 noundef %19, i32 noundef %26)
  %28 = add nsw i32 %27, %24
  store i32 %28, ptr %4, align 4, !tbaa !5
  %29 = 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)
  %30 = load i32, ptr %29, align 4, !tbaa !5
  store i32 %30, ptr %14, 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.ret18
}

; 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