; LLVM IR from ShahjalalShohag/code-library :: Geometry/Geometry 2D.ll (Z21seg_line_intersection2PTS_S_S_RS_)

; 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.PT = type { double, double }

@.str.5 = external hidden unnamed_addr constant [87 x i8], align 1
@.str.7 = external hidden unnamed_addr constant [7 x i8], align 1
@__PRETTY_FUNCTION__._Z21seg_line_intersection2PTS_S_S_RS_ = external hidden unnamed_addr constant [49 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: mustprogress nounwind uwtable
declare dso_local void @_ZN2PTC2ERKS_(ptr noundef nonnull align 8 dereferenceable(16), ptr noundef nonnull align 8 dereferenceable(16)) unnamed_addr #1 align 2

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

; Function Attrs: noreturn nounwind
declare void @__assert_fail(ptr noundef, ptr noundef, i32 noundef, ptr noundef) #2

; Function Attrs: mustprogress uwtable
declare dso_local noundef zeroext i1 @_Z22line_line_intersection2PTS_S_S_RS_(ptr noundef, ptr noundef, ptr noundef, ptr noundef, ptr noundef nonnull align 8 dereferenceable(16)) #3

; Function Attrs: mustprogress uwtable
declare dso_local noundef i32 @_Z17seg_line_relation2PTS_S_S_(ptr noundef, ptr noundef, ptr noundef, ptr noundef) #3

; Function Attrs: mustprogress uwtable
define dso_local noundef zeroext i1 @_Z21seg_line_intersection2PTS_S_S_RS_(ptr noundef %0, ptr noundef %1, ptr noundef %2, ptr noundef %3, ptr noundef nonnull align 8 dereferenceable(16) %4) #3 {
  %6 = alloca ptr, align 8
  %7 = alloca ptr, align 8
  %8 = alloca ptr, align 8
  %9 = alloca ptr, align 8
  %10 = alloca ptr, align 8
  %11 = alloca i8, align 1
  %12 = alloca %struct.PT, align 8
  %13 = alloca %struct.PT, align 8
  %14 = alloca %struct.PT, align 8
  %15 = alloca %struct.PT, align 8
  %16 = alloca %struct.PT, align 8
  %17 = alloca %struct.PT, align 8
  %18 = alloca %struct.PT, align 8
  %19 = alloca %struct.PT, align 8
  store ptr %0, ptr %6, align 8, !tbaa !5
  store ptr %1, ptr %7, align 8, !tbaa !5
  store ptr %2, ptr %8, align 8, !tbaa !5
  store ptr %3, ptr %9, align 8, !tbaa !5
  store ptr %4, ptr %10, align 8, !tbaa !5
  call void @llvm.lifetime.start.p0(i64 1, ptr %11) #4
  call void @_ZN2PTC2ERKS_(ptr noundef nonnull align 8 dereferenceable(16) %12, ptr noundef nonnull align 8 dereferenceable(16) %0)
  call void @_ZN2PTC2ERKS_(ptr noundef nonnull align 8 dereferenceable(16) %13, ptr noundef nonnull align 8 dereferenceable(16) %1)
  call void @_ZN2PTC2ERKS_(ptr noundef nonnull align 8 dereferenceable(16) %14, ptr noundef nonnull align 8 dereferenceable(16) %2)
  call void @_ZN2PTC2ERKS_(ptr noundef nonnull align 8 dereferenceable(16) %15, ptr noundef nonnull align 8 dereferenceable(16) %3)
  %20 = call noundef i32 @_Z17seg_line_relation2PTS_S_S_(ptr noundef %12, ptr noundef %13, ptr noundef %14, ptr noundef %15)
  %21 = icmp ne i32 %20, 0
  %22 = zext i1 %21 to i8
  store i8 %22, ptr %11, align 1, !tbaa !9
  %23 = load i8, ptr %11, align 1, !tbaa !9, !range !11, !noundef !12
  %24 = trunc i8 %23 to i1
  %25 = zext i1 %24 to i32
  %26 = icmp ne i32 %25, 2
  br i1 %26, label %27, label %28

27:                                               ; preds = %5
  br label %30

28:                                               ; preds = %5
  call void @__assert_fail(ptr noundef @.str.7, ptr noundef @.str.5, i32 noundef 236, ptr noundef @__PRETTY_FUNCTION__._Z21seg_line_intersection2PTS_S_S_RS_) #5
  unreachable

29:                                               ; No predecessors!
  br label %30

30:                                               ; preds = %29, %27
  %31 = load i8, ptr %11, align 1, !tbaa !9, !range !11, !noundef !12
  %32 = trunc i8 %31 to i1
  br i1 %32, label %33, label %36

33:                                               ; preds = %30
  call void @_ZN2PTC2ERKS_(ptr noundef nonnull align 8 dereferenceable(16) %16, ptr noundef nonnull align 8 dereferenceable(16) %0)
  call void @_ZN2PTC2ERKS_(ptr noundef nonnull align 8 dereferenceable(16) %17, ptr noundef nonnull align 8 dereferenceable(16) %1)
  call void @_ZN2PTC2ERKS_(ptr noundef nonnull align 8 dereferenceable(16) %18, ptr noundef nonnull align 8 dereferenceable(16) %2)
  call void @_ZN2PTC2ERKS_(ptr noundef nonnull align 8 dereferenceable(16) %19, ptr noundef nonnull align 8 dereferenceable(16) %3)
  %34 = load ptr, ptr %10, align 8, !tbaa !5
  %35 = call noundef zeroext i1 @_Z22line_line_intersection2PTS_S_S_RS_(ptr noundef %16, ptr noundef %17, ptr noundef %18, ptr noundef %19, ptr noundef nonnull align 8 dereferenceable(16) %34)
  br label %36

36:                                               ; preds = %33, %30
  %37 = load i8, ptr %11, align 1, !tbaa !9, !range !11, !noundef !12
  %38 = trunc i8 %37 to i1
  call void @llvm.lifetime.end.p0(i64 1, ptr %11) #4
  ret i1 %38
}

attributes #0 = { nocallback nofree nosync nounwind willreturn memory(argmem: readwrite) }
attributes #1 = { 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 #2 = { noreturn 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 = { mustprogress 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 = { nounwind }
attributes #5 = { noreturn 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 = !{!"any pointer", !7, i64 0}
!7 = !{!"omnipotent char", !8, i64 0}
!8 = !{!"Simple C++ TBAA"}
!9 = !{!10, !10, i64 0}
!10 = !{!"bool", !7, i64 0}
!11 = !{i8 0, i8 2}
!12 = !{}


; 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.PT = type { double, double }

; Function Attrs: mustprogress nounwind uwtable
declare dso_local void @_ZN2PTC2ERKS_(ptr noundef nonnull align 8 dereferenceable(16), ptr noundef nonnull align 8 dereferenceable(16)) unnamed_addr #0 align 2

; Function Attrs: mustprogress uwtable
declare dso_local noundef zeroext i1 @_Z22line_line_intersection2PTS_S_S_RS_(ptr noundef, ptr noundef, ptr noundef, ptr noundef, ptr noundef nonnull align 8 dereferenceable(16)) local_unnamed_addr #1

; Function Attrs: mustprogress uwtable
declare dso_local noundef i32 @_Z17seg_line_relation2PTS_S_S_(ptr noundef, ptr noundef, ptr noundef, ptr noundef) local_unnamed_addr #1

; Function Attrs: mustprogress uwtable
define dso_local noundef zeroext i1 @_Z21seg_line_intersection2PTS_S_S_RS_(ptr noundef nonnull %0, ptr noundef %1, ptr noundef %2, ptr noundef %3, ptr noundef nonnull align 8 dereferenceable(16) %4) local_unnamed_addr #1 {
  %6 = alloca %struct.PT, align 8
  %7 = alloca %struct.PT, align 8
  %8 = alloca %struct.PT, align 8
  %9 = alloca %struct.PT, align 8
  %10 = alloca %struct.PT, align 8
  %11 = alloca %struct.PT, align 8
  %12 = alloca %struct.PT, align 8
  %13 = alloca %struct.PT, align 8
  call void @_ZN2PTC2ERKS_(ptr noundef nonnull align 8 dereferenceable(16) %6, ptr noundef nonnull align 8 dereferenceable(16) %0)
  call void @_ZN2PTC2ERKS_(ptr noundef nonnull align 8 dereferenceable(16) %7, ptr noundef nonnull align 8 dereferenceable(16) %1)
  call void @_ZN2PTC2ERKS_(ptr noundef nonnull align 8 dereferenceable(16) %8, ptr noundef nonnull align 8 dereferenceable(16) %2)
  call void @_ZN2PTC2ERKS_(ptr noundef nonnull align 8 dereferenceable(16) %9, ptr noundef nonnull align 8 dereferenceable(16) %3)
  %14 = call noundef i32 @_Z17seg_line_relation2PTS_S_S_(ptr noundef nonnull %6, ptr noundef nonnull %7, ptr noundef nonnull %8, ptr noundef nonnull %9)
  %15 = icmp ne i32 %14, 0
  br i1 %15, label %16, label %18

16:                                               ; preds = %5
  call void @_ZN2PTC2ERKS_(ptr noundef nonnull align 8 dereferenceable(16) %10, ptr noundef nonnull align 8 dereferenceable(16) %0)
  call void @_ZN2PTC2ERKS_(ptr noundef nonnull align 8 dereferenceable(16) %11, ptr noundef nonnull align 8 dereferenceable(16) %1)
  call void @_ZN2PTC2ERKS_(ptr noundef nonnull align 8 dereferenceable(16) %12, ptr noundef nonnull align 8 dereferenceable(16) %2)
  call void @_ZN2PTC2ERKS_(ptr noundef nonnull align 8 dereferenceable(16) %13, ptr noundef nonnull align 8 dereferenceable(16) %3)
  %17 = call noundef zeroext i1 @_Z22line_line_intersection2PTS_S_S_RS_(ptr noundef nonnull %10, ptr noundef nonnull %11, ptr noundef nonnull %12, ptr noundef nonnull %13, ptr noundef nonnull align 8 dereferenceable(16) %4)
  br label %18

18:                                               ; preds = %16, %5
  ret i1 %15
}

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 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" }

!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,IPSCCPPass,InferFunctionAttrsPass,InstCombinePass,PostOrderFunctionAttrsPass,SROAPass,SimplifyCFGPass