; LLVM IR from ahampriyanshu/algo-ds-101 :: Algorithms/Graph/Bellman_Ford (bellman_ford)

; 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 { i32, i32, ptr }
%struct.Edge = type { i32, i32, i32 }

@.str.3 = external hidden unnamed_addr constant [35 x i8], align 1
@.str.4 = external hidden unnamed_addr constant [3 x i8], align 1
@.str.5 = external hidden unnamed_addr constant [32 x i8], align 1
@.str.6 = external hidden unnamed_addr constant [33 x i8], align 1
@.str.7 = external hidden unnamed_addr constant [68 x i8], align 1

; Function Attrs: nounwind uwtable
declare dso_local ptr @createGraph(i32 noundef, i32 noundef) #0

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

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

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

; Function Attrs: nounwind uwtable
declare dso_local void @BellmanFord(ptr noundef, i32 noundef) #0

; 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 ptr, align 8
  %6 = 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
  %7 = call i32 (ptr, ...) @printf(ptr noundef @.str.3)
  %8 = call i32 (ptr, ...) @__isoc99_scanf(ptr noundef @.str.4, ptr noundef %2)
  %9 = call i32 (ptr, ...) @printf(ptr noundef @.str.5)
  %10 = call i32 (ptr, ...) @__isoc99_scanf(ptr noundef @.str.4, ptr noundef %3)
  %11 = call i32 (ptr, ...) @printf(ptr noundef @.str.6)
  %12 = call i32 (ptr, ...) @__isoc99_scanf(ptr noundef @.str.4, ptr noundef %4)
  call void @llvm.lifetime.start.p0(i64 8, ptr %5) #3
  %13 = load i32, ptr %2, align 4, !tbaa !5
  %14 = load i32, ptr %3, align 4, !tbaa !5
  %15 = call ptr @createGraph(i32 noundef %13, i32 noundef %14)
  store ptr %15, ptr %5, align 8, !tbaa !9
  call void @llvm.lifetime.start.p0(i64 4, ptr %6) #3
  store i32 0, ptr %6, align 4, !tbaa !5
  br label %16

16:                                               ; preds = %48, %0
  %17 = load i32, ptr %6, align 4, !tbaa !5
  %18 = load i32, ptr %3, align 4, !tbaa !5
  %19 = icmp slt i32 %17, %18
  br i1 %19, label %20, label %51

20:                                               ; preds = %16
  %21 = load i32, ptr %6, align 4, !tbaa !5
  %22 = add nsw i32 %21, 1
  %23 = call i32 (ptr, ...) @printf(ptr noundef @.str.7, i32 noundef %22)
  %24 = load ptr, ptr %5, align 8, !tbaa !9
  %25 = getelementptr inbounds %struct.Graph, ptr %24, i32 0, i32 2
  %26 = load ptr, ptr %25, align 8, !tbaa !11
  %27 = load i32, ptr %6, align 4, !tbaa !5
  %28 = sext i32 %27 to i64
  %29 = getelementptr inbounds %struct.Edge, ptr %26, i64 %28
  %30 = getelementptr inbounds %struct.Edge, ptr %29, i32 0, i32 0
  %31 = call i32 (ptr, ...) @__isoc99_scanf(ptr noundef @.str.4, ptr noundef %30)
  %32 = load ptr, ptr %5, align 8, !tbaa !9
  %33 = getelementptr inbounds %struct.Graph, ptr %32, i32 0, i32 2
  %34 = load ptr, ptr %33, align 8, !tbaa !11
  %35 = load i32, ptr %6, align 4, !tbaa !5
  %36 = sext i32 %35 to i64
  %37 = getelementptr inbounds %struct.Edge, ptr %34, i64 %36
  %38 = getelementptr inbounds %struct.Edge, ptr %37, i32 0, i32 1
  %39 = call i32 (ptr, ...) @__isoc99_scanf(ptr noundef @.str.4, ptr noundef %38)
  %40 = load ptr, ptr %5, align 8, !tbaa !9
  %41 = getelementptr inbounds %struct.Graph, ptr %40, i32 0, i32 2
  %42 = load ptr, ptr %41, align 8, !tbaa !11
  %43 = load i32, ptr %6, align 4, !tbaa !5
  %44 = sext i32 %43 to i64
  %45 = getelementptr inbounds %struct.Edge, ptr %42, i64 %44
  %46 = getelementptr inbounds %struct.Edge, ptr %45, i32 0, i32 2
  %47 = call i32 (ptr, ...) @__isoc99_scanf(ptr noundef @.str.4, ptr noundef %46)
  br label %48

48:                                               ; preds = %20
  %49 = load i32, ptr %6, align 4, !tbaa !5
  %50 = add nsw i32 %49, 1
  store i32 %50, ptr %6, align 4, !tbaa !5
  br label %16, !llvm.loop !13

51:                                               ; preds = %16
  %52 = load ptr, ptr %5, align 8, !tbaa !9
  %53 = load i32, ptr %4, align 4, !tbaa !5
  call void @BellmanFord(ptr noundef %52, i32 noundef %53)
  call void @llvm.lifetime.end.p0(i64 4, ptr %6) #3
  call void @llvm.lifetime.end.p0(i64 8, 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
}

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

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 = !{!10, !10, i64 0}
!10 = !{!"any pointer", !7, i64 0}
!11 = !{!12, !10, i64 8}
!12 = !{!"Graph", !6, i64 0, !6, i64 4, !10, i64 8}
!13 = distinct !{!13, !14}
!14 = !{!"llvm.loop.mustprogress"}


; 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.Edge = type { i32, i32, i32 }

@.str.3 = external hidden unnamed_addr constant [35 x i8], align 1
@.str.4 = external hidden unnamed_addr constant [3 x i8], align 1
@.str.5 = external hidden unnamed_addr constant [32 x i8], align 1
@.str.6 = external hidden unnamed_addr constant [33 x i8], align 1
@.str.7 = external hidden unnamed_addr constant [68 x i8], align 1

; Function Attrs: nounwind uwtable
declare dso_local ptr @createGraph(i32 noundef, i32 noundef) local_unnamed_addr #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: mustprogress nocallback nofree nosync nounwind willreturn memory(argmem: readwrite)
declare void @llvm.lifetime.end.p0(i64 immarg, ptr nocapture) #1

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

; Function Attrs: nounwind uwtable
declare dso_local void @BellmanFord(ptr noundef, i32 noundef) local_unnamed_addr #0

; 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
  call void @llvm.lifetime.start.p0(i64 4, ptr nonnull %1) #3
  call void @llvm.lifetime.start.p0(i64 4, ptr nonnull %2) #3
  call void @llvm.lifetime.start.p0(i64 4, ptr nonnull %3) #3
  %4 = tail call i32 (ptr, ...) @printf(ptr noundef nonnull dereferenceable(1) @.str.3)
  %5 = call i32 (ptr, ...) @__isoc99_scanf(ptr noundef nonnull @.str.4, ptr noundef nonnull %1)
  %6 = call i32 (ptr, ...) @printf(ptr noundef nonnull dereferenceable(1) @.str.5)
  %7 = call i32 (ptr, ...) @__isoc99_scanf(ptr noundef nonnull @.str.4, ptr noundef nonnull %2)
  %8 = call i32 (ptr, ...) @printf(ptr noundef nonnull dereferenceable(1) @.str.6)
  %9 = call i32 (ptr, ...) @__isoc99_scanf(ptr noundef nonnull @.str.4, ptr noundef nonnull %3)
  %10 = load i32, ptr %1, align 4, !tbaa !5
  %11 = load i32, ptr %2, align 4, !tbaa !5
  %12 = call ptr @createGraph(i32 noundef %10, i32 noundef %11)
  %13 = load i32, ptr %2, align 4, !tbaa !5
  %14 = icmp sgt i32 %13, 0
  br i1 %14, label %.lr.ph, label %._crit_edge

.lr.ph:                                           ; preds = %0
  %15 = getelementptr inbounds i8, ptr %12, i64 8
  br label %16

16:                                               ; preds = %.lr.ph, %16
  %indvars.iv = phi i64 [ 0, %.lr.ph ], [ %indvars.iv.next, %16 ]
  %indvars.iv.next = add nuw nsw i64 %indvars.iv, 1
  %17 = trunc nuw nsw i64 %indvars.iv.next to i32
  %18 = call i32 (ptr, ...) @printf(ptr noundef nonnull dereferenceable(1) @.str.7, i32 noundef %17)
  %19 = load ptr, ptr %15, align 8, !tbaa !9
  %20 = getelementptr inbounds %struct.Edge, ptr %19, i64 %indvars.iv
  %21 = call i32 (ptr, ...) @__isoc99_scanf(ptr noundef nonnull @.str.4, ptr noundef %20)
  %22 = load ptr, ptr %15, align 8, !tbaa !9
  %23 = getelementptr inbounds %struct.Edge, ptr %22, i64 %indvars.iv, i32 1
  %24 = call i32 (ptr, ...) @__isoc99_scanf(ptr noundef nonnull @.str.4, ptr noundef nonnull %23)
  %25 = load ptr, ptr %15, align 8, !tbaa !9
  %26 = getelementptr inbounds %struct.Edge, ptr %25, i64 %indvars.iv, i32 2
  %27 = call i32 (ptr, ...) @__isoc99_scanf(ptr noundef nonnull @.str.4, ptr noundef nonnull %26)
  %28 = load i32, ptr %2, align 4, !tbaa !5
  %29 = sext i32 %28 to i64
  %30 = icmp slt i64 %indvars.iv.next, %29
  br i1 %30, label %16, label %._crit_edge, !llvm.loop !12

._crit_edge:                                      ; preds = %16, %0
  %31 = load i32, ptr %3, align 4, !tbaa !5
  call void @BellmanFord(ptr noundef %12, i32 noundef %31)
  call void @llvm.lifetime.end.p0(i64 4, ptr nonnull %3) #3
  call void @llvm.lifetime.end.p0(i64 4, ptr nonnull %2) #3
  call void @llvm.lifetime.end.p0(i64 4, ptr nonnull %1) #3
  ret i32 0
}

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

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 = { 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 = !{!10, !11, i64 8}
!10 = !{!"Graph", !6, i64 0, !6, i64 4, !11, i64 8}
!11 = !{!"any pointer", !7, i64 0}
!12 = distinct !{!12, !13}
!13 = !{!"llvm.loop.mustprogress"}


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