; LLVM IR from Dev-XYS/Algorithms :: Bellman-Ford (main)

; 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.vertex = type { i32, i32, i32, double }

@V = external dso_local global [10000 x %struct.vertex], align 16
@ivc = external dso_local global i32, align 4
@iec = external dso_local global i32, align 4
@s = external dso_local global i32, align 4
@t = external dso_local global i32, align 4
@.str = external hidden unnamed_addr constant [3 x i8], align 1
@.str.1 = external hidden unnamed_addr constant [5 x i8], align 1
@.str.2 = external hidden unnamed_addr constant [6 x i8], align 1

; Function Attrs: mustprogress nounwind uwtable
declare dso_local void @_Z9AddVertexii(i32 noundef, i32 noundef) #0

; Function Attrs: mustprogress nounwind uwtable
declare dso_local void @_Z7AddEdgeii(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

; Function Attrs: mustprogress nounwind uwtable
declare dso_local void @_Z12Bellman_Fordv() #0

; Function Attrs: mustprogress norecurse uwtable
define dso_local noundef i32 @main() #2 {
  %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 i32, align 4
  %7 = alloca i32, align 4
  store i32 0, ptr %1, align 4
  %8 = call i32 (ptr, ...) @__isoc99_scanf(ptr noundef @.str, ptr noundef @ivc)
  call void @llvm.lifetime.start.p0(i64 4, ptr %2) #4
  store i32 0, ptr %2, align 4, !tbaa !5
  br label %9

9:                                                ; preds = %18, %0
  %10 = load i32, ptr %2, align 4, !tbaa !5
  %11 = load i32, ptr @ivc, align 4, !tbaa !5
  %12 = icmp slt i32 %10, %11
  br i1 %12, label %14, label %13

13:                                               ; preds = %9
  call void @llvm.lifetime.end.p0(i64 4, ptr %2) #4
  br label %21

14:                                               ; preds = %9
  call void @llvm.lifetime.start.p0(i64 4, ptr %3) #4
  call void @llvm.lifetime.start.p0(i64 4, ptr %4) #4
  %15 = call i32 (ptr, ...) @__isoc99_scanf(ptr noundef @.str.1, ptr noundef %3, ptr noundef %4)
  %16 = load i32, ptr %3, align 4, !tbaa !5
  %17 = load i32, ptr %4, align 4, !tbaa !5
  call void @_Z9AddVertexii(i32 noundef %16, i32 noundef %17)
  call void @llvm.lifetime.end.p0(i64 4, ptr %4) #4
  call void @llvm.lifetime.end.p0(i64 4, ptr %3) #4
  br label %18

18:                                               ; preds = %14
  %19 = load i32, ptr %2, align 4, !tbaa !5
  %20 = add nsw i32 %19, 1
  store i32 %20, ptr %2, align 4, !tbaa !5
  br label %9, !llvm.loop !9

21:                                               ; preds = %13
  %22 = call i32 (ptr, ...) @__isoc99_scanf(ptr noundef @.str, ptr noundef @iec)
  call void @llvm.lifetime.start.p0(i64 4, ptr %5) #4
  store i32 0, ptr %5, align 4, !tbaa !5
  br label %23

23:                                               ; preds = %34, %21
  %24 = load i32, ptr %5, align 4, !tbaa !5
  %25 = load i32, ptr @iec, align 4, !tbaa !5
  %26 = icmp slt i32 %24, %25
  br i1 %26, label %28, label %27

27:                                               ; preds = %23
  call void @llvm.lifetime.end.p0(i64 4, ptr %5) #4
  br label %37

28:                                               ; preds = %23
  call void @llvm.lifetime.start.p0(i64 4, ptr %6) #4
  call void @llvm.lifetime.start.p0(i64 4, ptr %7) #4
  %29 = call i32 (ptr, ...) @__isoc99_scanf(ptr noundef @.str.1, ptr noundef %6, ptr noundef %7)
  %30 = load i32, ptr %6, align 4, !tbaa !5
  %31 = load i32, ptr %7, align 4, !tbaa !5
  call void @_Z7AddEdgeii(i32 noundef %30, i32 noundef %31)
  %32 = load i32, ptr %7, align 4, !tbaa !5
  %33 = load i32, ptr %6, align 4, !tbaa !5
  call void @_Z7AddEdgeii(i32 noundef %32, i32 noundef %33)
  call void @llvm.lifetime.end.p0(i64 4, ptr %7) #4
  call void @llvm.lifetime.end.p0(i64 4, ptr %6) #4
  br label %34

34:                                               ; preds = %28
  %35 = load i32, ptr %5, align 4, !tbaa !5
  %36 = add nsw i32 %35, 1
  store i32 %36, ptr %5, align 4, !tbaa !5
  br label %23, !llvm.loop !11

37:                                               ; preds = %27
  %38 = call i32 (ptr, ...) @__isoc99_scanf(ptr noundef @.str.1, ptr noundef @s, ptr noundef @t)
  call void @_Z12Bellman_Fordv()
  %39 = load i32, ptr @t, align 4, !tbaa !5
  %40 = sext i32 %39 to i64
  %41 = getelementptr inbounds [10000 x %struct.vertex], ptr @V, i64 0, i64 %40
  %42 = getelementptr inbounds %struct.vertex, ptr %41, i32 0, i32 3
  %43 = load double, ptr %42, align 8, !tbaa !12
  %44 = call i32 (ptr, ...) @printf(ptr noundef @.str.2, double noundef %43)
  ret i32 0
}

declare i32 @__isoc99_scanf(ptr noundef, ...) #3

declare i32 @printf(ptr noundef, ...) #3

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 = { nocallback nofree nosync nounwind willreturn memory(argmem: readwrite) }
attributes #2 = { mustprogress norecurse 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 = { "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++ TBAA"}
!9 = distinct !{!9, !10}
!10 = !{!"llvm.loop.mustprogress"}
!11 = distinct !{!11, !10}
!12 = !{!13, !14, i64 16}
!13 = !{!"_ZTS6vertex", !6, i64 0, !6, i64 4, !6, i64 8, !14, i64 16}
!14 = !{!"double", !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"

%struct.vertex = type { i32, i32, i32, double }

@V = external dso_local local_unnamed_addr global [10000 x %struct.vertex], align 16
@ivc = external dso_local global i32, align 4
@iec = external dso_local global i32, align 4
@s = external dso_local global i32, align 4
@t = external dso_local global i32, align 4
@.str = external hidden unnamed_addr constant [3 x i8], align 1
@.str.1 = external hidden unnamed_addr constant [5 x i8], align 1
@.str.2 = external hidden unnamed_addr constant [6 x i8], align 1

; Function Attrs: mustprogress nounwind uwtable
declare dso_local void @_Z9AddVertexii(i32 noundef, i32 noundef) local_unnamed_addr #0

; Function Attrs: mustprogress nounwind uwtable
declare dso_local void @_Z7AddEdgeii(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: mustprogress nounwind uwtable
declare dso_local void @_Z12Bellman_Fordv() local_unnamed_addr #0

; Function Attrs: mustprogress norecurse nounwind uwtable
define dso_local noundef i32 @main() local_unnamed_addr #2 {
  %1 = alloca i32, align 4
  %2 = alloca i32, align 4
  %3 = alloca i32, align 4
  %4 = alloca i32, align 4
  %5 = tail call i32 (ptr, ...) @__isoc99_scanf(ptr noundef nonnull @.str, ptr noundef nonnull @ivc)
  %6 = load i32, ptr @ivc, align 4, !tbaa !5
  %7 = icmp sgt i32 %6, 0
  br i1 %7, label %.lr.ph, label %._crit_edge

._crit_edge:                                      ; preds = %.lr.ph, %0
  %8 = call i32 (ptr, ...) @__isoc99_scanf(ptr noundef nonnull @.str, ptr noundef nonnull @iec)
  %9 = load i32, ptr @iec, align 4, !tbaa !5
  %10 = icmp sgt i32 %9, 0
  br i1 %10, label %.lr.ph8, label %._crit_edge9

.lr.ph:                                           ; preds = %0, %.lr.ph
  %.045 = phi i32 [ %14, %.lr.ph ], [ 0, %0 ]
  call void @llvm.lifetime.start.p0(i64 4, ptr nonnull %1) #4
  call void @llvm.lifetime.start.p0(i64 4, ptr nonnull %2) #4
  %11 = call i32 (ptr, ...) @__isoc99_scanf(ptr noundef nonnull @.str.1, ptr noundef nonnull %1, ptr noundef nonnull %2)
  %12 = load i32, ptr %1, align 4, !tbaa !5
  %13 = load i32, ptr %2, align 4, !tbaa !5
  call void @_Z9AddVertexii(i32 noundef %12, i32 noundef %13)
  call void @llvm.lifetime.end.p0(i64 4, ptr nonnull %2) #4
  call void @llvm.lifetime.end.p0(i64 4, ptr nonnull %1) #4
  %14 = add nuw nsw i32 %.045, 1
  %15 = load i32, ptr @ivc, align 4, !tbaa !5
  %16 = icmp slt i32 %14, %15
  br i1 %16, label %.lr.ph, label %._crit_edge, !llvm.loop !9

._crit_edge9:                                     ; preds = %.lr.ph8, %._crit_edge
  %17 = call i32 (ptr, ...) @__isoc99_scanf(ptr noundef nonnull @.str.1, ptr noundef nonnull @s, ptr noundef nonnull @t)
  call void @_Z12Bellman_Fordv()
  %18 = load i32, ptr @t, align 4, !tbaa !5
  %19 = sext i32 %18 to i64
  %20 = getelementptr inbounds [10000 x %struct.vertex], ptr @V, i64 0, i64 %19, i32 3
  %21 = load double, ptr %20, align 8, !tbaa !11
  %22 = call i32 (ptr, ...) @printf(ptr noundef nonnull dereferenceable(1) @.str.2, double noundef %21)
  ret i32 0

.lr.ph8:                                          ; preds = %._crit_edge, %.lr.ph8
  %.06 = phi i32 [ %28, %.lr.ph8 ], [ 0, %._crit_edge ]
  call void @llvm.lifetime.start.p0(i64 4, ptr nonnull %3) #4
  call void @llvm.lifetime.start.p0(i64 4, ptr nonnull %4) #4
  %23 = call i32 (ptr, ...) @__isoc99_scanf(ptr noundef nonnull @.str.1, ptr noundef nonnull %3, ptr noundef nonnull %4)
  %24 = load i32, ptr %3, align 4, !tbaa !5
  %25 = load i32, ptr %4, align 4, !tbaa !5
  call void @_Z7AddEdgeii(i32 noundef %24, i32 noundef %25)
  %26 = load i32, ptr %4, align 4, !tbaa !5
  %27 = load i32, ptr %3, align 4, !tbaa !5
  call void @_Z7AddEdgeii(i32 noundef %26, i32 noundef %27)
  call void @llvm.lifetime.end.p0(i64 4, ptr nonnull %4) #4
  call void @llvm.lifetime.end.p0(i64 4, ptr nonnull %3) #4
  %28 = add nuw nsw i32 %.06, 1
  %29 = load i32, ptr @iec, align 4, !tbaa !5
  %30 = icmp slt i32 %28, %29
  br i1 %30, label %.lr.ph8, label %._crit_edge9, !llvm.loop !14
}

; Function Attrs: nofree nounwind
declare noundef i32 @__isoc99_scanf(ptr nocapture noundef readonly, ...) local_unnamed_addr #3

; Function Attrs: nofree nounwind
declare noundef i32 @printf(ptr nocapture noundef readonly, ...) local_unnamed_addr #3

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 = { mustprogress norecurse 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 = { 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 #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++ TBAA"}
!9 = distinct !{!9, !10}
!10 = !{!"llvm.loop.mustprogress"}
!11 = !{!12, !13, i64 16}
!12 = !{!"_ZTS6vertex", !6, i64 0, !6, i64 4, !6, i64 8, !13, i64 16}
!13 = !{!"double", !7, i64 0}
!14 = distinct !{!14, !10}


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