; LLVM IR from caiozanatelli/MaxFlow :: src (tp1)

; 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"

%struct.Graph = type { ptr, ptr, ptr, i32, i32 }

@.str = external hidden unnamed_addr constant [12 x i8], align 1
@.str.1 = external hidden unnamed_addr constant [9 x i8], align 1
@.str.2 = external hidden unnamed_addr constant [3 x i8], align 1
@.str.3 = external hidden unnamed_addr constant [4 x i8], align 1

; Function Attrs: nounwind uwtable
define dso_local i32 @main() #0 {
  %1 = alloca i32, align 4
  %2 = alloca i32, align 4
  %3 = alloca i32, align 4
  %4 = alloca i32, align 4
  %5 = alloca i32, align 4
  %6 = alloca %struct.Graph, align 8
  %7 = alloca i32, align 4
  %8 = alloca i32, align 4
  %9 = alloca i32, align 4
  %10 = alloca i32, align 4
  %11 = alloca i32, align 4
  %12 = alloca i32, align 4
  %13 = alloca i32, align 4
  %14 = alloca i32, align 4
  store i32 0, ptr %1, align 4
  call void @llvm.lifetime.start.p0(i64 4, ptr %2) #3
  call void @llvm.lifetime.start.p0(i64 4, ptr %3) #3
  call void @llvm.lifetime.start.p0(i64 4, ptr %4) #3
  call void @llvm.lifetime.start.p0(i64 4, ptr %5) #3
  %15 = call i32 (ptr, ...) @__isoc99_scanf(ptr noundef @.str, ptr noundef %2, ptr noundef %3, ptr noundef %4, ptr noundef %5)
  call void @llvm.lifetime.start.p0(i64 32, ptr %6) #3
  %16 = load i32, ptr %2, align 4, !tbaa !5
  %17 = add nsw i32 %16, 2
  %18 = load i32, ptr %3, align 4, !tbaa !5
  %19 = load i32, ptr %4, align 4, !tbaa !5
  %20 = add nsw i32 %18, %19
  %21 = load i32, ptr %5, align 4, !tbaa !5
  %22 = add nsw i32 %20, %21
  call void @initGraph(ptr noundef %6, i32 noundef %17, i32 noundef %22)
  call void @llvm.lifetime.start.p0(i64 4, ptr %7) #3
  call void @llvm.lifetime.start.p0(i64 4, ptr %8) #3
  call void @llvm.lifetime.start.p0(i64 4, ptr %9) #3
  call void @llvm.lifetime.start.p0(i64 4, ptr %10) #3
  store i32 0, ptr %7, align 4, !tbaa !5
  br label %23

23:                                               ; preds = %36, %0
  %24 = load i32, ptr %7, align 4, !tbaa !5
  %25 = load i32, ptr %3, align 4, !tbaa !5
  %26 = icmp slt i32 %24, %25
  br i1 %26, label %27, label %39

27:                                               ; preds = %23
  %28 = call i32 (ptr, ...) @__isoc99_scanf(ptr noundef @.str.1, ptr noundef %8, ptr noundef %9, ptr noundef %10)
  %29 = load i32, ptr %8, align 4, !tbaa !5
  %30 = add nsw i32 %29, 1
  store i32 %30, ptr %8, align 4, !tbaa !5
  %31 = load i32, ptr %9, align 4, !tbaa !5
  %32 = add nsw i32 %31, 1
  store i32 %32, ptr %9, align 4, !tbaa !5
  %33 = load i32, ptr %8, align 4, !tbaa !5
  %34 = load i32, ptr %9, align 4, !tbaa !5
  %35 = load i32, ptr %10, align 4, !tbaa !5
  call void @addEdge(ptr noundef %6, i32 noundef %33, i32 noundef %34, i32 noundef %35)
  br label %36

36:                                               ; preds = %27
  %37 = load i32, ptr %7, align 4, !tbaa !5
  %38 = add nsw i32 %37, 1
  store i32 %38, ptr %7, align 4, !tbaa !5
  br label %23, !llvm.loop !9

39:                                               ; preds = %23
  call void @llvm.lifetime.start.p0(i64 4, ptr %11) #3
  call void @llvm.lifetime.start.p0(i64 4, ptr %12) #3
  store i32 0, ptr %12, align 4, !tbaa !5
  call void @llvm.lifetime.start.p0(i64 4, ptr %13) #3
  %40 = load i32, ptr %2, align 4, !tbaa !5
  %41 = add nsw i32 %40, 1
  store i32 %41, ptr %13, align 4, !tbaa !5
  store i32 0, ptr %7, align 4, !tbaa !5
  br label %42

42:                                               ; preds = %52, %39
  %43 = load i32, ptr %7, align 4, !tbaa !5
  %44 = load i32, ptr %4, align 4, !tbaa !5
  %45 = icmp slt i32 %43, %44
  br i1 %45, label %46, label %55

46:                                               ; preds = %42
  %47 = call i32 (ptr, ...) @__isoc99_scanf(ptr noundef @.str.2, ptr noundef %11)
  %48 = load i32, ptr %11, align 4, !tbaa !5
  %49 = add nsw i32 %48, 1
  store i32 %49, ptr %11, align 4, !tbaa !5
  %50 = load i32, ptr %12, align 4, !tbaa !5
  %51 = load i32, ptr %11, align 4, !tbaa !5
  call void @addEdge(ptr noundef %6, i32 noundef %50, i32 noundef %51, i32 noundef 2147483647)
  br label %52

52:                                               ; preds = %46
  %53 = load i32, ptr %7, align 4, !tbaa !5
  %54 = add nsw i32 %53, 1
  store i32 %54, ptr %7, align 4, !tbaa !5
  br label %42, !llvm.loop !11

55:                                               ; preds = %42
  call void @llvm.lifetime.start.p0(i64 4, ptr %14) #3
  store i32 0, ptr %7, align 4, !tbaa !5
  br label %56

56:                                               ; preds = %66, %55
  %57 = load i32, ptr %7, align 4, !tbaa !5
  %58 = load i32, ptr %5, align 4, !tbaa !5
  %59 = icmp slt i32 %57, %58
  br i1 %59, label %60, label %69

60:                                               ; preds = %56
  %61 = call i32 (ptr, ...) @__isoc99_scanf(ptr noundef @.str.2, ptr noundef %14)
  %62 = load i32, ptr %14, align 4, !tbaa !5
  %63 = add nsw i32 %62, 1
  store i32 %63, ptr %14, align 4, !tbaa !5
  %64 = load i32, ptr %14, align 4, !tbaa !5
  %65 = load i32, ptr %13, align 4, !tbaa !5
  call void @addEdge(ptr noundef %6, i32 noundef %64, i32 noundef %65, i32 noundef 2147483647)
  br label %66

66:                                               ; preds = %60
  %67 = load i32, ptr %7, align 4, !tbaa !5
  %68 = add nsw i32 %67, 1
  store i32 %68, ptr %7, align 4, !tbaa !5
  br label %56, !llvm.loop !12

69:                                               ; preds = %56
  %70 = load i32, ptr %12, align 4, !tbaa !5
  %71 = load i32, ptr %13, align 4, !tbaa !5
  %72 = call i32 @getMaxFlow(ptr noundef %6, i32 noundef %70, i32 noundef %71)
  %73 = call i32 (ptr, ...) @printf(ptr noundef @.str.3, i32 noundef %72)
  call void @freeGraph(ptr noundef %6)
  call void @llvm.lifetime.end.p0(i64 4, ptr %14) #3
  call void @llvm.lifetime.end.p0(i64 4, ptr %13) #3
  call void @llvm.lifetime.end.p0(i64 4, ptr %12) #3
  call void @llvm.lifetime.end.p0(i64 4, ptr %11) #3
  call void @llvm.lifetime.end.p0(i64 4, ptr %10) #3
  call void @llvm.lifetime.end.p0(i64 4, ptr %9) #3
  call void @llvm.lifetime.end.p0(i64 4, ptr %8) #3
  call void @llvm.lifetime.end.p0(i64 4, ptr %7) #3
  call void @llvm.lifetime.end.p0(i64 32, ptr %6) #3
  call void @llvm.lifetime.end.p0(i64 4, ptr %5) #3
  call void @llvm.lifetime.end.p0(i64 4, ptr %4) #3
  call void @llvm.lifetime.end.p0(i64 4, ptr %3) #3
  call void @llvm.lifetime.end.p0(i64 4, ptr %2) #3
  ret i32 0
}

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

declare i32 @__isoc99_scanf(ptr noundef, ...) #2

declare void @initGraph(ptr noundef, i32 noundef, i32 noundef) #2

declare void @addEdge(ptr noundef, i32 noundef, i32 noundef, i32 noundef) #2

declare i32 @printf(ptr noundef, ...) #2

declare i32 @getMaxFlow(ptr noundef, i32 noundef, i32 noundef) #2

declare void @freeGraph(ptr noundef) #2

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

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 = { nocallback nofree nosync nounwind willreturn memory(argmem: readwrite) }
attributes #2 = { "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/C++ TBAA"}
!9 = distinct !{!9, !10}
!10 = !{!"llvm.loop.mustprogress"}
!11 = distinct !{!11, !10}
!12 = distinct !{!12, !10}


; 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"

%struct.Graph = type { ptr, ptr, ptr, i32, i32 }

@.str = external hidden unnamed_addr constant [12 x i8], align 1
@.str.1 = external hidden unnamed_addr constant [9 x i8], align 1
@.str.2 = external hidden unnamed_addr constant [3 x i8], align 1
@.str.3 = external hidden unnamed_addr constant [4 x i8], align 1

; Function Attrs: nounwind uwtable
define dso_local noundef i32 @main() local_unnamed_addr #0 {
  %1 = alloca i32, align 4
  %2 = alloca i32, align 4
  %3 = alloca i32, align 4
  %4 = alloca i32, align 4
  %5 = alloca %struct.Graph, align 8
  %6 = alloca i32, align 4
  %7 = alloca i32, align 4
  %8 = alloca i32, align 4
  %9 = alloca i32, align 4
  %10 = alloca i32, align 4
  call void @llvm.lifetime.start.p0(i64 4, ptr nonnull %1) #4
  call void @llvm.lifetime.start.p0(i64 4, ptr nonnull %2) #4
  call void @llvm.lifetime.start.p0(i64 4, ptr nonnull %3) #4
  call void @llvm.lifetime.start.p0(i64 4, ptr nonnull %4) #4
  %11 = call i32 (ptr, ...) @__isoc99_scanf(ptr noundef nonnull @.str, ptr noundef nonnull %1, ptr noundef nonnull %2, ptr noundef nonnull %3, ptr noundef nonnull %4)
  call void @llvm.lifetime.start.p0(i64 32, ptr nonnull %5) #4
  %12 = load i32, ptr %1, align 4, !tbaa !5
  %13 = add nsw i32 %12, 2
  %14 = load i32, ptr %2, align 4, !tbaa !5
  %15 = load i32, ptr %3, align 4, !tbaa !5
  %16 = add nsw i32 %15, %14
  %17 = load i32, ptr %4, align 4, !tbaa !5
  %18 = add nsw i32 %16, %17
  call void @initGraph(ptr noundef nonnull %5, i32 noundef %13, i32 noundef %18) #4
  call void @llvm.lifetime.start.p0(i64 4, ptr nonnull %6) #4
  call void @llvm.lifetime.start.p0(i64 4, ptr nonnull %7) #4
  call void @llvm.lifetime.start.p0(i64 4, ptr nonnull %8) #4
  %19 = load i32, ptr %2, align 4, !tbaa !5
  %20 = icmp sgt i32 %19, 0
  br i1 %20, label %.lr.ph, label %._crit_edge

.lr.ph:                                           ; preds = %0, %.lr.ph
  %.010 = phi i32 [ %27, %.lr.ph ], [ 0, %0 ]
  %21 = call i32 (ptr, ...) @__isoc99_scanf(ptr noundef nonnull @.str.1, ptr noundef nonnull %6, ptr noundef nonnull %7, ptr noundef nonnull %8)
  %22 = load i32, ptr %6, align 4, !tbaa !5
  %23 = add nsw i32 %22, 1
  store i32 %23, ptr %6, align 4, !tbaa !5
  %24 = load i32, ptr %7, align 4, !tbaa !5
  %25 = add nsw i32 %24, 1
  store i32 %25, ptr %7, align 4, !tbaa !5
  %26 = load i32, ptr %8, align 4, !tbaa !5
  call void @addEdge(ptr noundef nonnull %5, i32 noundef %23, i32 noundef %25, i32 noundef %26) #4
  %27 = add nuw nsw i32 %.010, 1
  %28 = load i32, ptr %2, align 4, !tbaa !5
  %29 = icmp slt i32 %27, %28
  br i1 %29, label %.lr.ph, label %._crit_edge, !llvm.loop !9

._crit_edge:                                      ; preds = %.lr.ph, %0
  call void @llvm.lifetime.start.p0(i64 4, ptr nonnull %9) #4
  %30 = load i32, ptr %1, align 4, !tbaa !5
  %31 = add nsw i32 %30, 1
  %32 = load i32, ptr %3, align 4, !tbaa !5
  %33 = icmp sgt i32 %32, 0
  br i1 %33, label %.lr.ph13, label %._crit_edge14

.lr.ph13:                                         ; preds = %._crit_edge, %.lr.ph13
  %.111 = phi i32 [ %37, %.lr.ph13 ], [ 0, %._crit_edge ]
  %34 = call i32 (ptr, ...) @__isoc99_scanf(ptr noundef nonnull @.str.2, ptr noundef nonnull %9)
  %35 = load i32, ptr %9, align 4, !tbaa !5
  %36 = add nsw i32 %35, 1
  store i32 %36, ptr %9, align 4, !tbaa !5
  call void @addEdge(ptr noundef nonnull %5, i32 noundef 0, i32 noundef %36, i32 noundef 2147483647) #4
  %37 = add nuw nsw i32 %.111, 1
  %38 = load i32, ptr %3, align 4, !tbaa !5
  %39 = icmp slt i32 %37, %38
  br i1 %39, label %.lr.ph13, label %._crit_edge14, !llvm.loop !11

._crit_edge14:                                    ; preds = %.lr.ph13, %._crit_edge
  call void @llvm.lifetime.start.p0(i64 4, ptr nonnull %10) #4
  %40 = load i32, ptr %4, align 4, !tbaa !5
  %41 = icmp sgt i32 %40, 0
  br i1 %41, label %.lr.ph17, label %._crit_edge18

.lr.ph17:                                         ; preds = %._crit_edge14, %.lr.ph17
  %.215 = phi i32 [ %45, %.lr.ph17 ], [ 0, %._crit_edge14 ]
  %42 = call i32 (ptr, ...) @__isoc99_scanf(ptr noundef nonnull @.str.2, ptr noundef nonnull %10)
  %43 = load i32, ptr %10, align 4, !tbaa !5
  %44 = add nsw i32 %43, 1
  store i32 %44, ptr %10, align 4, !tbaa !5
  call void @addEdge(ptr noundef nonnull %5, i32 noundef %44, i32 noundef %31, i32 noundef 2147483647) #4
  %45 = add nuw nsw i32 %.215, 1
  %46 = load i32, ptr %4, align 4, !tbaa !5
  %47 = icmp slt i32 %45, %46
  br i1 %47, label %.lr.ph17, label %._crit_edge18, !llvm.loop !12

._crit_edge18:                                    ; preds = %.lr.ph17, %._crit_edge14
  %48 = call i32 @getMaxFlow(ptr noundef nonnull %5, i32 noundef 0, i32 noundef %31) #4
  %49 = call i32 (ptr, ...) @printf(ptr noundef nonnull dereferenceable(1) @.str.3, i32 noundef %48)
  call void @freeGraph(ptr noundef nonnull %5) #4
  call void @llvm.lifetime.end.p0(i64 4, ptr nonnull %10) #4
  call void @llvm.lifetime.end.p0(i64 4, ptr nonnull %9) #4
  call void @llvm.lifetime.end.p0(i64 4, ptr nonnull %8) #4
  call void @llvm.lifetime.end.p0(i64 4, ptr nonnull %7) #4
  call void @llvm.lifetime.end.p0(i64 4, ptr nonnull %6) #4
  call void @llvm.lifetime.end.p0(i64 32, ptr nonnull %5) #4
  call void @llvm.lifetime.end.p0(i64 4, ptr nonnull %4) #4
  call void @llvm.lifetime.end.p0(i64 4, ptr nonnull %3) #4
  call void @llvm.lifetime.end.p0(i64 4, ptr nonnull %2) #4
  call void @llvm.lifetime.end.p0(i64 4, ptr nonnull %1) #4
  ret i32 0
}

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

; Function Attrs: nofree nounwind
declare noundef i32 @__isoc99_scanf(ptr nocapture noundef readonly, ...) local_unnamed_addr #2

declare void @initGraph(ptr noundef, i32 noundef, i32 noundef) local_unnamed_addr #3

declare void @addEdge(ptr noundef, i32 noundef, i32 noundef, i32 noundef) local_unnamed_addr #3

; Function Attrs: nofree nounwind
declare noundef i32 @printf(ptr nocapture noundef readonly, ...) local_unnamed_addr #2

declare i32 @getMaxFlow(ptr noundef, i32 noundef, i32 noundef) local_unnamed_addr #3

declare void @freeGraph(ptr noundef) local_unnamed_addr #3

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

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 = { mustprogress nocallback nofree nosync nounwind willreturn memory(argmem: readwrite) }
attributes #2 = { nofree nounwind "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 = { "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 #4 = { 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/C++ TBAA"}
!9 = distinct !{!9, !10}
!10 = !{!"llvm.loop.mustprogress"}
!11 = distinct !{!11, !10}
!12 = distinct !{!12, !10}


; Effective O3 passes: EarlyCSEPass,GlobalOptPass,InferFunctionAttrsPass,InstCombinePass,JumpThreadingPass,LoopRotatePass,LoopSimplifyPass,LoopUnrollPass,PostOrderFunctionAttrsPass,ReassociatePass,SROAPass,SimplifyCFGPass