; LLVM IR from ahr9n/psolving-paradigms :: 1.brute-force/1.2.recursive-brute-force-(backtracking)/Gym 325692J - Knapsack.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
@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 @_Z3solii(i32 noundef %0, i32 noundef %1) #0 {
  %3 = alloca i64, align 8
  %4 = alloca i32, align 4
  %5 = alloca i32, align 4
  %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 i32 %1, ptr %5, align 4, !tbaa !5
  %10 = load i32, ptr %5, align 4, !tbaa !5
  %11 = icmp ne i32 %10, 0
  br i1 %11, label %13, label %12

12:                                               ; preds = %2
  store i64 0, ptr %3, align 8
  br label %62

13:                                               ; preds = %2
  %14 = load i32, ptr %5, align 4, !tbaa !5
  %15 = icmp slt i32 %14, 0
  br i1 %15, label %20, label %16

16:                                               ; preds = %13
  %17 = load i32, ptr %4, align 4, !tbaa !5
  %18 = load i32, ptr @n, align 4, !tbaa !5
  %19 = icmp eq i32 %17, %18
  br i1 %19, label %20, label %21

20:                                               ; preds = %16, %13
  store i64 1000000000, ptr %3, align 8
  br label %62

21:                                               ; preds = %16
  call void @llvm.lifetime.start.p0(i64 8, ptr %6) #3
  %22 = load i32, ptr %4, align 4, !tbaa !5
  %23 = sext i32 %22 to i64
  %24 = getelementptr inbounds [109 x [100009 x i64]], ptr @dp, i64 0, i64 %23
  %25 = load i32, ptr %5, align 4, !tbaa !5
  %26 = sext i32 %25 to i64
  %27 = getelementptr inbounds [100009 x i64], ptr %24, i64 0, i64 %26
  store ptr %27, ptr %6, align 8, !tbaa !9
  %28 = load ptr, ptr %6, align 8, !tbaa !9
  %29 = load i64, ptr %28, align 8, !tbaa !11
  %30 = xor i64 %29, -1
  %31 = icmp ne i64 %30, 0
  br i1 %31, label %32, label %35

32:                                               ; preds = %21
  %33 = load ptr, ptr %6, align 8, !tbaa !9
  %34 = load i64, ptr %33, align 8, !tbaa !11
  store i64 %34, ptr %3, align 8
  store i32 1, ptr %7, align 4
  br label %61

35:                                               ; preds = %21
  call void @llvm.lifetime.start.p0(i64 8, ptr %8) #3
  %36 = load i32, ptr %4, align 4, !tbaa !5
  %37 = sext i32 %36 to i64
  %38 = getelementptr inbounds [109 x [2 x i64]], ptr @a, i64 0, i64 %37
  %39 = getelementptr inbounds [2 x i64], ptr %38, i64 0, i64 0
  %40 = load i64, ptr %39, align 16, !tbaa !11
  %41 = load i32, ptr %4, align 4, !tbaa !5
  %42 = add nsw i32 %41, 1
  %43 = load i32, ptr %5, align 4, !tbaa !5
  %44 = sext i32 %43 to i64
  %45 = load i32, ptr %4, align 4, !tbaa !5
  %46 = sext i32 %45 to i64
  %47 = getelementptr inbounds [109 x [2 x i64]], ptr @a, i64 0, i64 %46
  %48 = getelementptr inbounds [2 x i64], ptr %47, i64 0, i64 1
  %49 = load i64, ptr %48, align 8, !tbaa !11
  %50 = sub nsw i64 %44, %49
  %51 = trunc i64 %50 to i32
  %52 = call noundef i64 @_Z3solii(i32 noundef %42, i32 noundef %51)
  %53 = add nsw i64 %40, %52
  store i64 %53, ptr %8, align 8, !tbaa !11
  call void @llvm.lifetime.start.p0(i64 8, ptr %9) #3
  %54 = load i32, ptr %4, align 4, !tbaa !5
  %55 = add nsw i32 %54, 1
  %56 = load i32, ptr %5, align 4, !tbaa !5
  %57 = call noundef i64 @_Z3solii(i32 noundef %55, i32 noundef %56)
  store i64 %57, ptr %9, align 8, !tbaa !11
  %58 = call noundef nonnull align 8 dereferenceable(8) ptr @_ZSt3minIxERKT_S2_S2_(ptr noundef nonnull align 8 dereferenceable(8) %8, ptr noundef nonnull align 8 dereferenceable(8) %9)
  %59 = load i64, ptr %58, align 8, !tbaa !11
  %60 = load ptr, ptr %6, align 8, !tbaa !9
  store i64 %59, ptr %60, align 8, !tbaa !11
  store i64 %59, 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 %61

61:                                               ; preds = %35, %32
  call void @llvm.lifetime.end.p0(i64 8, ptr %6) #3
  br label %62

62:                                               ; preds = %61, %20, %12
  %63 = load i64, ptr %3, align 8
  ret i64 %63
}

; 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 @_ZSt3minIxERKT_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 = !{!"any pointer", !7, i64 0}
!11 = !{!12, !12, i64 0}
!12 = !{!"long long", !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 @_Z3solii(i32 noundef %0, i32 noundef %1) local_unnamed_addr #0 {
  %3 = alloca i64, align 8
  %4 = alloca i64, align 8
  %.not = icmp eq i32 %1, 0
  br i1 %.not, label %common.ret18, label %5

5:                                                ; preds = %2
  %6 = icmp slt i32 %1, 0
  %7 = load i32, ptr @n, align 4
  %8 = icmp eq i32 %7, %0
  %or.cond = select i1 %6, i1 true, i1 %8
  br i1 %or.cond, label %common.ret18, label %9

9:                                                ; preds = %5
  %10 = sext i32 %0 to i64
  %11 = zext nneg i32 %1 to i64
  %12 = getelementptr inbounds [109 x [100009 x i64]], ptr @dp, i64 0, i64 %10, i64 %11
  %13 = load i64, ptr %12, align 8, !tbaa !5
  %.not16 = icmp eq i64 %13, -1
  br i1 %.not16, label %14, label %common.ret18

common.ret18:                                     ; preds = %9, %5, %2, %14
  %common.ret18.op = phi i64 [ %26, %14 ], [ 0, %2 ], [ 1000000000, %5 ], [ %13, %9 ]
  ret i64 %common.ret18.op

14:                                               ; preds = %9
  call void @llvm.lifetime.start.p0(i64 8, ptr nonnull %3) #3
  %15 = getelementptr inbounds [109 x [2 x i64]], ptr @a, i64 0, i64 %10
  %16 = load i64, ptr %15, align 16, !tbaa !5
  %17 = add nsw i32 %0, 1
  %18 = getelementptr inbounds i8, ptr %15, i64 8
  %19 = load i64, ptr %18, align 8, !tbaa !5
  %20 = trunc i64 %19 to i32
  %21 = sub i32 %1, %20
  %22 = tail call noundef i64 @_Z3solii(i32 noundef %17, i32 noundef %21)
  %23 = add nsw i64 %22, %16
  store i64 %23, ptr %3, align 8, !tbaa !5
  call void @llvm.lifetime.start.p0(i64 8, ptr nonnull %4) #3
  %24 = tail call noundef i64 @_Z3solii(i32 noundef %17, i32 noundef %1)
  store i64 %24, ptr %4, align 8, !tbaa !5
  %25 = call noundef nonnull align 8 dereferenceable(8) ptr @_ZSt3minIxERKT_S2_S2_(ptr noundef nonnull align 8 dereferenceable(8) %3, ptr noundef nonnull align 8 dereferenceable(8) %4)
  %26 = load i64, ptr %25, align 8, !tbaa !5
  store i64 %26, ptr %12, align 8, !tbaa !5
  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.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 8 dereferenceable(8) ptr @_ZSt3minIxERKT_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 = !{!"long long", !7, i64 0}
!7 = !{!"omnipotent char", !8, i64 0}
!8 = !{!"Simple C++ TBAA"}


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