; LLVM IR from AlgoGenesis/C :: Mathematical Algorithms/Line Intersection (Program)

; 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.Point = type { i32, i32 }

@.str = external hidden unnamed_addr constant [64 x i8], align 1
@.str.1 = external hidden unnamed_addr constant [12 x i8], align 1
@.str.2 = external hidden unnamed_addr constant [65 x i8], align 1
@.str.3 = external hidden unnamed_addr constant [30 x i8], align 1
@.str.4 = external hidden unnamed_addr constant [37 x i8], align 1

; Function Attrs: nocallback nofree nosync nounwind willreturn memory(argmem: readwrite)
declare void @llvm.lifetime.start.p0(i64 immarg, ptr nocapture) #0

; Function Attrs: nocallback nofree nosync nounwind willreturn memory(argmem: readwrite)
declare void @llvm.lifetime.end.p0(i64 immarg, ptr nocapture) #0

; Function Attrs: nounwind uwtable
declare dso_local i32 @areSegmentsIntersecting(i64, i64, i64, i64) #1

; Function Attrs: nounwind uwtable
define dso_local i32 @main() #1 {
  %1 = alloca i32, align 4
  %2 = alloca %struct.Point, align 4
  %3 = alloca %struct.Point, align 4
  %4 = alloca %struct.Point, align 4
  %5 = alloca %struct.Point, align 4
  store i32 0, ptr %1, align 4
  call void @llvm.lifetime.start.p0(i64 8, ptr %2) #3
  call void @llvm.lifetime.start.p0(i64 8, ptr %3) #3
  call void @llvm.lifetime.start.p0(i64 8, ptr %4) #3
  call void @llvm.lifetime.start.p0(i64 8, ptr %5) #3
  %6 = call i32 (ptr, ...) @printf(ptr noundef @.str)
  %7 = getelementptr inbounds %struct.Point, ptr %2, i32 0, i32 0
  %8 = getelementptr inbounds %struct.Point, ptr %2, i32 0, i32 1
  %9 = getelementptr inbounds %struct.Point, ptr %3, i32 0, i32 0
  %10 = getelementptr inbounds %struct.Point, ptr %3, i32 0, i32 1
  %11 = call i32 (ptr, ...) @__isoc99_scanf(ptr noundef @.str.1, ptr noundef %7, ptr noundef %8, ptr noundef %9, ptr noundef %10)
  %12 = call i32 (ptr, ...) @printf(ptr noundef @.str.2)
  %13 = getelementptr inbounds %struct.Point, ptr %4, i32 0, i32 0
  %14 = getelementptr inbounds %struct.Point, ptr %4, i32 0, i32 1
  %15 = getelementptr inbounds %struct.Point, ptr %5, i32 0, i32 0
  %16 = getelementptr inbounds %struct.Point, ptr %5, i32 0, i32 1
  %17 = call i32 (ptr, ...) @__isoc99_scanf(ptr noundef @.str.1, ptr noundef %13, ptr noundef %14, ptr noundef %15, ptr noundef %16)
  %18 = load i64, ptr %2, align 4
  %19 = load i64, ptr %3, align 4
  %20 = load i64, ptr %4, align 4
  %21 = load i64, ptr %5, align 4
  %22 = call i32 @areSegmentsIntersecting(i64 %18, i64 %19, i64 %20, i64 %21)
  %23 = icmp ne i32 %22, 0
  br i1 %23, label %24, label %26

24:                                               ; preds = %0
  %25 = call i32 (ptr, ...) @printf(ptr noundef @.str.3)
  br label %28

26:                                               ; preds = %0
  %27 = call i32 (ptr, ...) @printf(ptr noundef @.str.4)
  br label %28

28:                                               ; preds = %26, %24
  call void @llvm.lifetime.end.p0(i64 8, ptr %5) #3
  call void @llvm.lifetime.end.p0(i64 8, ptr %4) #3
  call void @llvm.lifetime.end.p0(i64 8, ptr %3) #3
  call void @llvm.lifetime.end.p0(i64 8, ptr %2) #3
  ret i32 0
}

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

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

attributes #0 = { nocallback nofree nosync nounwind willreturn memory(argmem: readwrite) }
attributes #1 = { 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 #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)"}


; 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.Point = type { i32, i32 }

@.str = external hidden unnamed_addr constant [64 x i8], align 1
@.str.1 = external hidden unnamed_addr constant [12 x i8], align 1
@.str.2 = external hidden unnamed_addr constant [65 x i8], align 1
@.str.3 = external hidden unnamed_addr constant [30 x i8], align 1
@.str.4 = external hidden unnamed_addr constant [37 x i8], align 1

; Function Attrs: mustprogress nocallback nofree nosync nounwind willreturn memory(argmem: readwrite)
declare void @llvm.lifetime.start.p0(i64 immarg, ptr nocapture) #0

; Function Attrs: mustprogress nocallback nofree nosync nounwind willreturn memory(argmem: readwrite)
declare void @llvm.lifetime.end.p0(i64 immarg, ptr nocapture) #0

; Function Attrs: nounwind uwtable
declare dso_local i32 @areSegmentsIntersecting(i64, i64, i64, i64) local_unnamed_addr #1

; Function Attrs: nounwind uwtable
define dso_local noundef i32 @main() local_unnamed_addr #1 {
  %1 = alloca %struct.Point, align 8
  %2 = alloca %struct.Point, align 8
  %3 = alloca %struct.Point, align 8
  %4 = alloca %struct.Point, align 8
  call void @llvm.lifetime.start.p0(i64 8, ptr nonnull %1) #3
  call void @llvm.lifetime.start.p0(i64 8, ptr nonnull %2) #3
  call void @llvm.lifetime.start.p0(i64 8, ptr nonnull %3) #3
  call void @llvm.lifetime.start.p0(i64 8, ptr nonnull %4) #3
  %5 = tail call i32 (ptr, ...) @printf(ptr noundef nonnull dereferenceable(1) @.str)
  %6 = getelementptr inbounds i8, ptr %1, i64 4
  %7 = getelementptr inbounds i8, ptr %2, i64 4
  %8 = call i32 (ptr, ...) @__isoc99_scanf(ptr noundef nonnull @.str.1, ptr noundef nonnull %1, ptr noundef nonnull %6, ptr noundef nonnull %2, ptr noundef nonnull %7)
  %9 = call i32 (ptr, ...) @printf(ptr noundef nonnull dereferenceable(1) @.str.2)
  %10 = getelementptr inbounds i8, ptr %3, i64 4
  %11 = getelementptr inbounds i8, ptr %4, i64 4
  %12 = call i32 (ptr, ...) @__isoc99_scanf(ptr noundef nonnull @.str.1, ptr noundef nonnull %3, ptr noundef nonnull %10, ptr noundef nonnull %4, ptr noundef nonnull %11)
  %13 = load i64, ptr %1, align 8
  %14 = load i64, ptr %2, align 8
  %15 = load i64, ptr %3, align 8
  %16 = load i64, ptr %4, align 8
  %17 = call i32 @areSegmentsIntersecting(i64 %13, i64 %14, i64 %15, i64 %16)
  %.not = icmp eq i32 %17, 0
  %.str.4..str.3 = select i1 %.not, ptr @.str.4, ptr @.str.3
  %18 = call i32 (ptr, ...) @printf(ptr noundef nonnull dereferenceable(1) %.str.4..str.3)
  call void @llvm.lifetime.end.p0(i64 8, ptr nonnull %4) #3
  call void @llvm.lifetime.end.p0(i64 8, ptr nonnull %3) #3
  call void @llvm.lifetime.end.p0(i64 8, ptr nonnull %2) #3
  call void @llvm.lifetime.end.p0(i64 8, ptr nonnull %1) #3
  ret i32 0
}

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

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

attributes #0 = { mustprogress nocallback nofree nosync nounwind willreturn memory(argmem: readwrite) }
attributes #1 = { 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 #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)"}


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