; LLVM IR from git-akshat/NP-Lab :: A3 (TCP) (ClientTCP)

; 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.sockaddr_in = type { i16, i16, %struct.in_addr, [8 x i8] }
%struct.in_addr = type { i32 }

@.str = external hidden unnamed_addr constant [10 x i8], align 1
@.str.1 = external hidden unnamed_addr constant [31 x i8], align 1
@.str.2 = external hidden unnamed_addr constant [19 x i8], align 1
@.str.3 = external hidden unnamed_addr constant [3 x i8], align 1
@.str.4 = external hidden unnamed_addr constant [21 x i8], align 1
@.str.5 = external hidden unnamed_addr constant [59 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 [1024 x i8], align 16
  %5 = alloca [50 x i8], align 16
  %6 = alloca %struct.sockaddr_in, align 4
  store i32 0, ptr %1, align 4
  call void @llvm.lifetime.start.p0(i64 4, ptr %2) #6
  call void @llvm.lifetime.start.p0(i64 4, ptr %3) #6
  call void @llvm.lifetime.start.p0(i64 1024, ptr %4) #6
  call void @llvm.lifetime.start.p0(i64 50, ptr %5) #6
  %7 = call i32 @socket(i32 noundef 2, i32 noundef 1, i32 noundef 0) #6
  store i32 %7, ptr %2, align 4, !tbaa !5
  call void @llvm.lifetime.start.p0(i64 16, ptr %6) #6
  %8 = getelementptr inbounds %struct.sockaddr_in, ptr %6, i32 0, i32 0
  store i16 2, ptr %8, align 4, !tbaa !9
  %9 = getelementptr inbounds %struct.sockaddr_in, ptr %6, i32 0, i32 1
  %10 = call zeroext i16 @__bswap_16(i16 noundef zeroext 1234)
  store i16 %10, ptr %9, align 2, !tbaa !13
  %11 = getelementptr inbounds %struct.sockaddr_in, ptr %6, i32 0, i32 2
  %12 = getelementptr inbounds %struct.in_addr, ptr %11, i32 0, i32 0
  %13 = call i32 @inet_addr(ptr noundef @.str) #6
  store i32 %13, ptr %12, align 4, !tbaa !14
  %14 = getelementptr inbounds %struct.sockaddr_in, ptr %6, i32 0, i32 3
  call void @llvm.memset.p0.i64(ptr align 4 %14, i8 0, i64 8, i1 false)
  br label %15

15:                                               ; preds = %19, %0
  %16 = load i32, ptr %2, align 4, !tbaa !5
  %17 = call i32 @connect(i32 noundef %16, ptr noundef %6, i32 noundef 16)
  %18 = icmp slt i32 %17, 0
  br i1 %18, label %19, label %20

19:                                               ; preds = %15
  br label %15, !llvm.loop !15

20:                                               ; preds = %15
  %21 = call i32 (ptr, ...) @printf(ptr noundef @.str.1)
  %22 = call i32 (ptr, ...) @printf(ptr noundef @.str.2)
  %23 = getelementptr inbounds [50 x i8], ptr %5, i64 0, i64 0
  %24 = call i32 (ptr, ...) @__isoc99_scanf(ptr noundef @.str.3, ptr noundef %23)
  %25 = load i32, ptr %2, align 4, !tbaa !5
  %26 = getelementptr inbounds [50 x i8], ptr %5, i64 0, i64 0
  %27 = call i64 @send(i32 noundef %25, ptr noundef %26, i64 noundef 50, i32 noundef 0)
  %28 = call i32 (ptr, ...) @printf(ptr noundef @.str.4)
  %29 = call i32 (ptr, ...) @printf(ptr noundef @.str.5)
  br label %30

30:                                               ; preds = %36, %20
  %31 = load i32, ptr %2, align 4, !tbaa !5
  %32 = getelementptr inbounds [1024 x i8], ptr %4, i64 0, i64 0
  %33 = call i64 @recv(i32 noundef %31, ptr noundef %32, i64 noundef 1024, i32 noundef 0)
  %34 = trunc i64 %33 to i32
  store i32 %34, ptr %3, align 4, !tbaa !5
  %35 = icmp sgt i32 %34, 0
  br i1 %35, label %36, label %42

36:                                               ; preds = %30
  %37 = load i32, ptr %3, align 4, !tbaa !5
  %38 = sext i32 %37 to i64
  %39 = getelementptr inbounds [1024 x i8], ptr %4, i64 0, i64 %38
  store i8 0, ptr %39, align 1, !tbaa !17
  %40 = getelementptr inbounds [1024 x i8], ptr %4, i64 0, i64 0
  %41 = call i32 (ptr, ...) @printf(ptr noundef @.str.3, ptr noundef %40)
  br label %30, !llvm.loop !18

42:                                               ; preds = %30
  %43 = call i32 (ptr, ...) @printf(ptr noundef @.str.5)
  call void @llvm.lifetime.end.p0(i64 16, ptr %6) #6
  call void @llvm.lifetime.end.p0(i64 50, ptr %5) #6
  call void @llvm.lifetime.end.p0(i64 1024, ptr %4) #6
  call void @llvm.lifetime.end.p0(i64 4, ptr %3) #6
  call void @llvm.lifetime.end.p0(i64 4, ptr %2) #6
  ret i32 0
}

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

; Function Attrs: nounwind
declare i32 @socket(i32 noundef, i32 noundef, i32 noundef) #2

; Function Attrs: inlinehint nounwind uwtable
declare hidden zeroext i16 @__bswap_16(i16 noundef zeroext) #3

; Function Attrs: nounwind
declare i32 @inet_addr(ptr noundef) #2

; Function Attrs: nocallback nofree nounwind willreturn memory(argmem: write)
declare void @llvm.memset.p0.i64(ptr nocapture writeonly, i8, i64, i1 immarg) #4

declare i32 @connect(i32 noundef, ptr noundef, i32 noundef) #5

declare i32 @printf(ptr noundef, ...) #5

declare i32 @__isoc99_scanf(ptr noundef, ...) #5

declare i64 @send(i32 noundef, ptr noundef, i64 noundef, i32 noundef) #5

declare i64 @recv(i32 noundef, ptr noundef, i64 noundef, i32 noundef) #5

; 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 = { 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 = { inlinehint 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 #4 = { nocallback nofree nounwind willreturn memory(argmem: write) }
attributes #5 = { "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 #6 = { 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 0}
!10 = !{!"sockaddr_in", !11, i64 0, !11, i64 2, !12, i64 4, !7, i64 8}
!11 = !{!"short", !7, i64 0}
!12 = !{!"in_addr", !6, i64 0}
!13 = !{!10, !11, i64 2}
!14 = !{!12, !6, i64 0}
!15 = distinct !{!15, !16}
!16 = !{!"llvm.loop.mustprogress"}
!17 = !{!7, !7, i64 0}
!18 = distinct !{!18, !16}


; 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.sockaddr_in = type { i16, i16, %struct.in_addr, [8 x i8] }
%struct.in_addr = type { i32 }

@.str = external hidden unnamed_addr constant [10 x i8], align 1
@.str.1 = external hidden unnamed_addr constant [31 x i8], align 1
@.str.2 = external hidden unnamed_addr constant [19 x i8], align 1
@.str.3 = external hidden unnamed_addr constant [3 x i8], align 1
@.str.4 = external hidden unnamed_addr constant [21 x i8], align 1
@.str.5 = external hidden unnamed_addr constant [59 x i8], align 1

; Function Attrs: nounwind uwtable
define dso_local noundef i32 @main() local_unnamed_addr #0 {
  %1 = alloca [1024 x i8], align 16
  %2 = alloca [50 x i8], align 16
  %3 = alloca %struct.sockaddr_in, align 4
  call void @llvm.lifetime.start.p0(i64 1024, ptr nonnull %1) #6
  call void @llvm.lifetime.start.p0(i64 50, ptr nonnull %2) #6
  %4 = tail call i32 @socket(i32 noundef 2, i32 noundef 1, i32 noundef 0) #6
  call void @llvm.lifetime.start.p0(i64 16, ptr nonnull %3) #6
  store i16 2, ptr %3, align 4, !tbaa !5
  %5 = getelementptr inbounds i8, ptr %3, i64 2
  %6 = tail call zeroext i16 @__bswap_16(i16 noundef zeroext 1234)
  store i16 %6, ptr %5, align 2, !tbaa !12
  %7 = getelementptr inbounds i8, ptr %3, i64 4
  %8 = tail call i32 @inet_addr(ptr noundef nonnull @.str) #6
  store i32 %8, ptr %7, align 4, !tbaa !13
  %9 = getelementptr inbounds i8, ptr %3, i64 8
  store i64 0, ptr %9, align 4
  br label %10

10:                                               ; preds = %10, %0
  %11 = call i32 @connect(i32 noundef %4, ptr noundef nonnull %3, i32 noundef 16) #6
  %12 = icmp slt i32 %11, 0
  br i1 %12, label %10, label %13, !llvm.loop !14

13:                                               ; preds = %10
  %14 = call i32 (ptr, ...) @printf(ptr noundef nonnull dereferenceable(1) @.str.1)
  %15 = call i32 (ptr, ...) @printf(ptr noundef nonnull dereferenceable(1) @.str.2)
  %16 = call i32 (ptr, ...) @__isoc99_scanf(ptr noundef nonnull @.str.3, ptr noundef nonnull %2)
  %17 = call i64 @send(i32 noundef %4, ptr noundef nonnull %2, i64 noundef 50, i32 noundef 0) #6
  %18 = call i32 (ptr, ...) @printf(ptr noundef nonnull dereferenceable(1) @.str.4)
  %19 = call i32 (ptr, ...) @printf(ptr noundef nonnull dereferenceable(1) @.str.5)
  %20 = call i64 @recv(i32 noundef %4, ptr noundef nonnull %1, i64 noundef 1024, i32 noundef 0) #6
  %21 = trunc i64 %20 to i32
  %22 = icmp sgt i32 %21, 0
  br i1 %22, label %.lr.ph, label %._crit_edge

.lr.ph:                                           ; preds = %13, %.lr.ph
  %23 = phi i64 [ %27, %.lr.ph ], [ %20, %13 ]
  %24 = and i64 %23, 2147483647
  %25 = getelementptr inbounds [1024 x i8], ptr %1, i64 0, i64 %24
  store i8 0, ptr %25, align 1, !tbaa !16
  %26 = call i32 (ptr, ...) @printf(ptr noundef nonnull dereferenceable(1) @.str.3, ptr noundef nonnull %1)
  %27 = call i64 @recv(i32 noundef %4, ptr noundef nonnull %1, i64 noundef 1024, i32 noundef 0) #6
  %28 = trunc i64 %27 to i32
  %29 = icmp sgt i32 %28, 0
  br i1 %29, label %.lr.ph, label %._crit_edge, !llvm.loop !17

._crit_edge:                                      ; preds = %.lr.ph, %13
  %30 = call i32 (ptr, ...) @printf(ptr noundef nonnull dereferenceable(1) @.str.5)
  call void @llvm.lifetime.end.p0(i64 16, ptr nonnull %3) #6
  call void @llvm.lifetime.end.p0(i64 50, ptr nonnull %2) #6
  call void @llvm.lifetime.end.p0(i64 1024, ptr nonnull %1) #6
  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: nounwind
declare i32 @socket(i32 noundef, i32 noundef, i32 noundef) local_unnamed_addr #2

; Function Attrs: inlinehint nounwind uwtable
declare hidden zeroext i16 @__bswap_16(i16 noundef zeroext) local_unnamed_addr #3

; Function Attrs: nounwind
declare i32 @inet_addr(ptr noundef) local_unnamed_addr #2

declare i32 @connect(i32 noundef, ptr noundef, i32 noundef) local_unnamed_addr #4

; Function Attrs: nofree nounwind
declare noundef i32 @printf(ptr nocapture noundef readonly, ...) local_unnamed_addr #5

; Function Attrs: nofree nounwind
declare noundef i32 @__isoc99_scanf(ptr nocapture noundef readonly, ...) local_unnamed_addr #5

declare i64 @send(i32 noundef, ptr noundef, i64 noundef, i32 noundef) local_unnamed_addr #4

declare i64 @recv(i32 noundef, ptr noundef, i64 noundef, i32 noundef) local_unnamed_addr #4

; 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 = { 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 = { inlinehint 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 #4 = { "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 #5 = { 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 #6 = { 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, !7, i64 0}
!6 = !{!"sockaddr_in", !7, i64 0, !7, i64 2, !10, i64 4, !8, i64 8}
!7 = !{!"short", !8, i64 0}
!8 = !{!"omnipotent char", !9, i64 0}
!9 = !{!"Simple C/C++ TBAA"}
!10 = !{!"in_addr", !11, i64 0}
!11 = !{!"int", !8, i64 0}
!12 = !{!6, !7, i64 2}
!13 = !{!10, !11, i64 0}
!14 = distinct !{!14, !15}
!15 = !{!"llvm.loop.mustprogress"}
!16 = !{!8, !8, i64 0}
!17 = distinct !{!17, !15}


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