; LLVM IR from imeplusplus/icpc-notebook :: geometry/lines.ll (Z17project_point_ray5pointS_S_)

; 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 { x86_fp80, x86_fp80 }

; Function Attrs: mustprogress nounwind uwtable
declare dso_local noundef zeroext i1 @_Z2leee(x86_fp80 noundef, x86_fp80 noundef) #0

; Function Attrs: nocallback nofree nounwind willreturn memory(argmem: readwrite)
declare void @llvm.memcpy.p0.p0.i64(ptr noalias nocapture writeonly, ptr noalias nocapture readonly, i64, i1 immarg) #1

; Function Attrs: mustprogress nounwind uwtable
declare dso_local noundef x86_fp80 @_Z3dot5pointS_(ptr noundef byval(%struct.point) align 16, ptr noundef byval(%struct.point) align 16) #0

; Function Attrs: nocallback nofree nosync nounwind willreturn memory(argmem: readwrite)
declare void @llvm.lifetime.start.p0(i64 immarg, ptr nocapture) #2

; Function Attrs: nocallback nofree nosync nounwind willreturn memory(argmem: readwrite)
declare void @llvm.lifetime.end.p0(i64 immarg, ptr nocapture) #2

; Function Attrs: mustprogress uwtable
declare dso_local void @_ZN5pointmiES_(ptr dead_on_unwind noalias writable sret(%struct.point) align 16, ptr noundef nonnull align 16 dereferenceable(32), ptr noundef byval(%struct.point) align 16) #3 align 2

; Function Attrs: inlinehint mustprogress nounwind uwtable
declare dso_local noundef x86_fp80 @_ZSt4fabse(x86_fp80 noundef) #4

; Function Attrs: mustprogress uwtable
declare dso_local void @_ZN5pointplES_(ptr dead_on_unwind noalias writable sret(%struct.point) align 16, ptr noundef nonnull align 16 dereferenceable(32), ptr noundef byval(%struct.point) align 16) #3 align 2

; Function Attrs: mustprogress uwtable
declare dso_local void @_ZN5pointmlEe(ptr dead_on_unwind noalias writable sret(%struct.point) align 16, ptr noundef nonnull align 16 dereferenceable(32), x86_fp80 noundef) #3 align 2

; Function Attrs: mustprogress uwtable
define dso_local void @_Z17project_point_ray5pointS_S_(ptr dead_on_unwind noalias writable sret(%struct.point) align 16 %0, ptr noundef byval(%struct.point) align 16 %1, ptr noundef byval(%struct.point) align 16 %2, ptr noundef byval(%struct.point) align 16 %3) #3 {
  %5 = alloca x86_fp80, align 16
  %6 = alloca %struct.point, align 16
  %7 = alloca %struct.point, align 16
  %8 = alloca %struct.point, align 16
  %9 = alloca %struct.point, align 16
  %10 = alloca i32, align 4
  %11 = alloca %struct.point, align 16
  %12 = alloca %struct.point, align 16
  %13 = alloca %struct.point, align 16
  %14 = alloca %struct.point, align 16
  %15 = alloca %struct.point, align 16
  %16 = alloca %struct.point, align 16
  %17 = alloca %struct.point, align 16
  call void @llvm.lifetime.start.p0(i64 16, ptr %5) #5
  call void @llvm.memcpy.p0.p0.i64(ptr align 16 %7, ptr align 16 %2, i64 32, i1 false), !tbaa.struct !5
  call void @_ZN5pointmiES_(ptr dead_on_unwind writable sret(%struct.point) align 16 %6, ptr noundef nonnull align 16 dereferenceable(32) %3, ptr noundef byval(%struct.point) align 16 %7)
  call void @llvm.memcpy.p0.p0.i64(ptr align 16 %9, ptr align 16 %2, i64 32, i1 false), !tbaa.struct !5
  call void @_ZN5pointmiES_(ptr dead_on_unwind writable sret(%struct.point) align 16 %8, ptr noundef nonnull align 16 dereferenceable(32) %3, ptr noundef byval(%struct.point) align 16 %9)
  %18 = call noundef x86_fp80 @_Z3dot5pointS_(ptr noundef byval(%struct.point) align 16 %6, ptr noundef byval(%struct.point) align 16 %8)
  store x86_fp80 %18, ptr %5, align 16, !tbaa !6
  %19 = load x86_fp80, ptr %5, align 16, !tbaa !6
  %20 = call noundef x86_fp80 @_ZSt4fabse(x86_fp80 noundef %19)
  %21 = fcmp olt x86_fp80 %20, 0xK3FE189705F4136B4A800
  br i1 %21, label %22, label %23

22:                                               ; preds = %4
  call void @llvm.memcpy.p0.p0.i64(ptr align 16 %0, ptr align 16 %2, i64 32, i1 false), !tbaa.struct !5
  store i32 1, ptr %10, align 4
  br label %32

23:                                               ; preds = %4
  call void @llvm.memcpy.p0.p0.i64(ptr align 16 %12, ptr align 16 %2, i64 32, i1 false), !tbaa.struct !5
  call void @_ZN5pointmiES_(ptr dead_on_unwind writable sret(%struct.point) align 16 %11, ptr noundef nonnull align 16 dereferenceable(32) %1, ptr noundef byval(%struct.point) align 16 %12)
  call void @llvm.memcpy.p0.p0.i64(ptr align 16 %14, ptr align 16 %2, i64 32, i1 false), !tbaa.struct !5
  call void @_ZN5pointmiES_(ptr dead_on_unwind writable sret(%struct.point) align 16 %13, ptr noundef nonnull align 16 dereferenceable(32) %3, ptr noundef byval(%struct.point) align 16 %14)
  %24 = call noundef x86_fp80 @_Z3dot5pointS_(ptr noundef byval(%struct.point) align 16 %11, ptr noundef byval(%struct.point) align 16 %13)
  %25 = load x86_fp80, ptr %5, align 16, !tbaa !6
  %26 = fdiv x86_fp80 %24, %25
  store x86_fp80 %26, ptr %5, align 16, !tbaa !6
  %27 = load x86_fp80, ptr %5, align 16, !tbaa !6
  %28 = call noundef zeroext i1 @_Z2leee(x86_fp80 noundef %27, x86_fp80 noundef 0xK00000000000000000000)
  br i1 %28, label %29, label %30

29:                                               ; preds = %23
  call void @llvm.memcpy.p0.p0.i64(ptr align 16 %0, ptr align 16 %2, i64 32, i1 false), !tbaa.struct !5
  store i32 1, ptr %10, align 4
  br label %32

30:                                               ; preds = %23
  call void @llvm.lifetime.start.p0(i64 32, ptr %16) #5
  call void @llvm.memcpy.p0.p0.i64(ptr align 16 %17, ptr align 16 %2, i64 32, i1 false), !tbaa.struct !5
  call void @_ZN5pointmiES_(ptr dead_on_unwind writable sret(%struct.point) align 16 %16, ptr noundef nonnull align 16 dereferenceable(32) %3, ptr noundef byval(%struct.point) align 16 %17)
  %31 = load x86_fp80, ptr %5, align 16, !tbaa !6
  call void @_ZN5pointmlEe(ptr dead_on_unwind writable sret(%struct.point) align 16 %15, ptr noundef nonnull align 16 dereferenceable(32) %16, x86_fp80 noundef %31)
  call void @_ZN5pointplES_(ptr dead_on_unwind writable sret(%struct.point) align 16 %0, ptr noundef nonnull align 16 dereferenceable(32) %2, ptr noundef byval(%struct.point) align 16 %15)
  call void @llvm.lifetime.end.p0(i64 32, ptr %16) #5
  store i32 1, ptr %10, align 4
  br label %32

32:                                               ; preds = %30, %29, %22
  call void @llvm.lifetime.end.p0(i64 16, ptr %5) #5
  ret void
}

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 nounwind willreturn memory(argmem: readwrite) }
attributes #2 = { nocallback nofree nosync nounwind willreturn memory(argmem: readwrite) }
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 = { inlinehint 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 #5 = { 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 = !{i64 0, i64 16, !6, i64 16, i64 16, !6}
!6 = !{!7, !7, i64 0}
!7 = !{!"long double", !8, i64 0}
!8 = !{!"omnipotent char", !9, i64 0}
!9 = !{!"Simple C++ TBAA"}


; 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 { x86_fp80, x86_fp80 }

; Function Attrs: mustprogress nounwind uwtable
declare dso_local noundef zeroext i1 @_Z2leee(x86_fp80 noundef, x86_fp80 noundef) local_unnamed_addr #0

; Function Attrs: mustprogress nocallback nofree nounwind willreturn memory(argmem: readwrite)
declare void @llvm.memcpy.p0.p0.i64(ptr noalias nocapture writeonly, ptr noalias nocapture readonly, i64, i1 immarg) #1

; Function Attrs: mustprogress nounwind uwtable
declare dso_local noundef x86_fp80 @_Z3dot5pointS_(ptr noundef byval(%struct.point) align 16, ptr noundef byval(%struct.point) align 16) 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) #2

; Function Attrs: mustprogress nocallback nofree nosync nounwind willreturn memory(argmem: readwrite)
declare void @llvm.lifetime.end.p0(i64 immarg, ptr nocapture) #2

; Function Attrs: mustprogress uwtable
declare dso_local void @_ZN5pointmiES_(ptr dead_on_unwind noalias writable sret(%struct.point) align 16, ptr noundef nonnull align 16 dereferenceable(32), ptr noundef byval(%struct.point) align 16) local_unnamed_addr #3 align 2

; Function Attrs: inlinehint mustprogress nounwind uwtable
declare dso_local noundef x86_fp80 @_ZSt4fabse(x86_fp80 noundef) local_unnamed_addr #4

; Function Attrs: mustprogress uwtable
declare dso_local void @_ZN5pointplES_(ptr dead_on_unwind noalias writable sret(%struct.point) align 16, ptr noundef nonnull align 16 dereferenceable(32), ptr noundef byval(%struct.point) align 16) local_unnamed_addr #3 align 2

; Function Attrs: mustprogress uwtable
declare dso_local void @_ZN5pointmlEe(ptr dead_on_unwind noalias writable sret(%struct.point) align 16, ptr noundef nonnull align 16 dereferenceable(32), x86_fp80 noundef) local_unnamed_addr #3 align 2

; Function Attrs: mustprogress uwtable
define dso_local void @_Z17project_point_ray5pointS_S_(ptr dead_on_unwind noalias writable sret(%struct.point) align 16 %0, ptr noundef byval(%struct.point) align 16 %1, ptr noundef byval(%struct.point) align 16 %2, ptr noundef nonnull byval(%struct.point) align 16 %3) local_unnamed_addr #3 {
  %5 = alloca %struct.point, align 16
  %6 = alloca %struct.point, align 16
  %7 = alloca %struct.point, align 16
  %8 = alloca %struct.point, align 16
  %9 = alloca %struct.point, align 16
  %10 = alloca %struct.point, align 16
  call void @_ZN5pointmiES_(ptr dead_on_unwind nonnull writable sret(%struct.point) align 16 %5, ptr noundef nonnull align 16 dereferenceable(32) %3, ptr noundef nonnull byval(%struct.point) align 16 %2)
  call void @_ZN5pointmiES_(ptr dead_on_unwind nonnull writable sret(%struct.point) align 16 %6, ptr noundef nonnull align 16 dereferenceable(32) %3, ptr noundef nonnull byval(%struct.point) align 16 %2)
  %11 = call noundef x86_fp80 @_Z3dot5pointS_(ptr noundef nonnull byval(%struct.point) align 16 %5, ptr noundef nonnull byval(%struct.point) align 16 %6)
  %12 = call noundef x86_fp80 @_ZSt4fabse(x86_fp80 noundef %11)
  %13 = fcmp olt x86_fp80 %12, 0xK3FE189705F4136B4A800
  br i1 %13, label %14, label %15

14:                                               ; preds = %4
  call void @llvm.memcpy.p0.p0.i64(ptr noundef nonnull align 16 dereferenceable(32) %0, ptr noundef nonnull align 16 dereferenceable(32) %2, i64 32, i1 false), !tbaa.struct !5
  br label %21

15:                                               ; preds = %4
  call void @_ZN5pointmiES_(ptr dead_on_unwind nonnull writable sret(%struct.point) align 16 %7, ptr noundef nonnull align 16 dereferenceable(32) %1, ptr noundef nonnull byval(%struct.point) align 16 %2)
  call void @_ZN5pointmiES_(ptr dead_on_unwind nonnull writable sret(%struct.point) align 16 %8, ptr noundef nonnull align 16 dereferenceable(32) %3, ptr noundef nonnull byval(%struct.point) align 16 %2)
  %16 = call noundef x86_fp80 @_Z3dot5pointS_(ptr noundef nonnull byval(%struct.point) align 16 %7, ptr noundef nonnull byval(%struct.point) align 16 %8)
  %17 = fdiv x86_fp80 %16, %11
  %18 = call noundef zeroext i1 @_Z2leee(x86_fp80 noundef %17, x86_fp80 noundef 0xK00000000000000000000)
  br i1 %18, label %19, label %20

19:                                               ; preds = %15
  call void @llvm.memcpy.p0.p0.i64(ptr noundef nonnull align 16 dereferenceable(32) %0, ptr noundef nonnull align 16 dereferenceable(32) %2, i64 32, i1 false), !tbaa.struct !5
  br label %21

20:                                               ; preds = %15
  call void @llvm.lifetime.start.p0(i64 32, ptr nonnull %10) #5
  call void @_ZN5pointmiES_(ptr dead_on_unwind nonnull writable sret(%struct.point) align 16 %10, ptr noundef nonnull align 16 dereferenceable(32) %3, ptr noundef nonnull byval(%struct.point) align 16 %2)
  call void @_ZN5pointmlEe(ptr dead_on_unwind nonnull writable sret(%struct.point) align 16 %9, ptr noundef nonnull align 16 dereferenceable(32) %10, x86_fp80 noundef %17)
  call void @_ZN5pointplES_(ptr dead_on_unwind writable sret(%struct.point) align 16 %0, ptr noundef nonnull align 16 dereferenceable(32) %2, ptr noundef nonnull byval(%struct.point) align 16 %9)
  call void @llvm.lifetime.end.p0(i64 32, ptr nonnull %10) #5
  br label %21

21:                                               ; preds = %20, %19, %14
  ret void
}

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 nounwind willreturn memory(argmem: readwrite) }
attributes #2 = { mustprogress nocallback nofree nosync nounwind willreturn memory(argmem: readwrite) }
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 = { inlinehint 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 #5 = { 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 = !{i64 0, i64 16, !6, i64 16, i64 16, !6}
!6 = !{!7, !7, i64 0}
!7 = !{!"long double", !8, i64 0}
!8 = !{!"omnipotent char", !9, i64 0}
!9 = !{!"Simple C++ TBAA"}


; Effective O3 passes: DSEPass,GlobalOptPass,InferFunctionAttrsPass,InstCombinePass,MemCpyOptPass,PostOrderFunctionAttrsPass,SROAPass