; LLVM IR from imeplusplus/icpc-notebook :: geometry/lines.ll (Z25compute_line_intersection5pointS_S_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 }

@.str.4 = external hidden unnamed_addr constant [35 x i8], align 1
@.str.5 = external hidden unnamed_addr constant [78 x i8], align 1
@__PRETTY_FUNCTION__._Z25compute_line_intersection5pointS_S_S_ = external hidden unnamed_addr constant [60 x i8], align 1

; 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) #0

; 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) #1

; Function Attrs: mustprogress nounwind uwtable
declare dso_local noundef x86_fp80 @_Z5cross5pointS_(ptr noundef byval(%struct.point) align 16, ptr noundef byval(%struct.point) align 16) #1

; 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: 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
declare dso_local void @_ZN5pointdvEe(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 @_Z25compute_line_intersection5pointS_S_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, ptr noundef byval(%struct.point) align 16 %4) #3 {
  %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
  %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
  %18 = alloca %struct.point, align 16
  %19 = alloca %struct.point, align 16
  %20 = alloca %struct.point, align 16
  %21 = alloca %struct.point, align 16
  call void @llvm.lifetime.start.p0(i64 32, ptr %6) #5
  call void @llvm.memcpy.p0.p0.i64(ptr align 16 %7, ptr align 16 %1, 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) %2, ptr noundef byval(%struct.point) align 16 %7)
  call void @llvm.memcpy.p0.p0.i64(ptr align 16 %2, ptr align 16 %6, i64 32, i1 false), !tbaa.struct !5
  call void @llvm.lifetime.end.p0(i64 32, ptr %6) #5
  call void @llvm.lifetime.start.p0(i64 32, ptr %8) #5
  call void @llvm.memcpy.p0.p0.i64(ptr align 16 %9, ptr align 16 %4, 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)
  call void @llvm.memcpy.p0.p0.i64(ptr align 16 %4, ptr align 16 %8, i64 32, i1 false), !tbaa.struct !5
  call void @llvm.lifetime.end.p0(i64 32, ptr %8) #5
  call void @llvm.lifetime.start.p0(i64 32, ptr %10) #5
  call void @llvm.memcpy.p0.p0.i64(ptr align 16 %11, ptr align 16 %1, i64 32, i1 false), !tbaa.struct !5
  call void @_ZN5pointmiES_(ptr dead_on_unwind writable sret(%struct.point) align 16 %10, ptr noundef nonnull align 16 dereferenceable(32) %3, ptr noundef byval(%struct.point) align 16 %11)
  call void @llvm.memcpy.p0.p0.i64(ptr align 16 %3, ptr align 16 %10, i64 32, i1 false), !tbaa.struct !5
  call void @llvm.lifetime.end.p0(i64 32, ptr %10) #5
  call void @llvm.memcpy.p0.p0.i64(ptr align 16 %12, ptr align 16 %2, i64 32, i1 false), !tbaa.struct !5
  call void @llvm.memcpy.p0.p0.i64(ptr align 16 %13, ptr align 16 %2, i64 32, i1 false), !tbaa.struct !5
  %22 = call noundef x86_fp80 @_Z3dot5pointS_(ptr noundef byval(%struct.point) align 16 %12, ptr noundef byval(%struct.point) align 16 %13)
  %23 = fcmp ogt x86_fp80 %22, 0xK3FE189705F4136B4A800
  br i1 %23, label %24, label %27

24:                                               ; preds = %5
  call void @llvm.memcpy.p0.p0.i64(ptr align 16 %14, ptr align 16 %4, i64 32, i1 false), !tbaa.struct !5
  call void @llvm.memcpy.p0.p0.i64(ptr align 16 %15, ptr align 16 %4, i64 32, i1 false), !tbaa.struct !5
  %25 = call noundef x86_fp80 @_Z3dot5pointS_(ptr noundef byval(%struct.point) align 16 %14, ptr noundef byval(%struct.point) align 16 %15)
  %26 = fcmp ogt x86_fp80 %25, 0xK3FE189705F4136B4A800
  br label %27

27:                                               ; preds = %24, %5
  %28 = phi i1 [ false, %5 ], [ %26, %24 ]
  br i1 %28, label %29, label %30

29:                                               ; preds = %27
  br label %32

30:                                               ; preds = %27
  call void @__assert_fail(ptr noundef @.str.4, ptr noundef @.str.5, i32 noundef 68, ptr noundef @__PRETTY_FUNCTION__._Z25compute_line_intersection5pointS_S_S_) #6
  unreachable

31:                                               ; No predecessors!
  br label %32

32:                                               ; preds = %31, %29
  call void @llvm.lifetime.start.p0(i64 32, ptr %17) #5
  call void @llvm.memcpy.p0.p0.i64(ptr align 16 %18, ptr align 16 %3, i64 32, i1 false), !tbaa.struct !5
  call void @llvm.memcpy.p0.p0.i64(ptr align 16 %19, ptr align 16 %4, i64 32, i1 false), !tbaa.struct !5
  %33 = call noundef x86_fp80 @_Z5cross5pointS_(ptr noundef byval(%struct.point) align 16 %18, ptr noundef byval(%struct.point) align 16 %19)
  call void @_ZN5pointmlEe(ptr dead_on_unwind writable sret(%struct.point) align 16 %17, ptr noundef nonnull align 16 dereferenceable(32) %2, x86_fp80 noundef %33)
  call void @llvm.memcpy.p0.p0.i64(ptr align 16 %20, ptr align 16 %2, i64 32, i1 false), !tbaa.struct !5
  call void @llvm.memcpy.p0.p0.i64(ptr align 16 %21, ptr align 16 %4, i64 32, i1 false), !tbaa.struct !5
  %34 = call noundef x86_fp80 @_Z5cross5pointS_(ptr noundef byval(%struct.point) align 16 %20, ptr noundef byval(%struct.point) align 16 %21)
  call void @_ZN5pointdvEe(ptr dead_on_unwind writable sret(%struct.point) align 16 %16, ptr noundef nonnull align 16 dereferenceable(32) %17, x86_fp80 noundef %34)
  call void @_ZN5pointplES_(ptr dead_on_unwind writable sret(%struct.point) align 16 %0, ptr noundef nonnull align 16 dereferenceable(32) %1, ptr noundef byval(%struct.point) align 16 %16)
  call void @llvm.lifetime.end.p0(i64 32, ptr %17) #5
  ret void
}

; Function Attrs: noreturn nounwind
declare void @__assert_fail(ptr noundef, ptr noundef, i32 noundef, ptr noundef) #4

attributes #0 = { nocallback nofree 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 = { 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 = { 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 #5 = { nounwind }
attributes #6 = { 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 = !{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 }

@.str.4 = external hidden unnamed_addr constant [35 x i8], align 1
@.str.5 = external hidden unnamed_addr constant [78 x i8], align 1
@__PRETTY_FUNCTION__._Z25compute_line_intersection5pointS_S_S_ = external hidden unnamed_addr constant [60 x i8], align 1

; 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) #0

; 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 #1

; Function Attrs: mustprogress nounwind uwtable
declare dso_local noundef x86_fp80 @_Z5cross5pointS_(ptr noundef byval(%struct.point) align 16, ptr noundef byval(%struct.point) align 16) local_unnamed_addr #1

; 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: 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
declare dso_local void @_ZN5pointdvEe(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 @_Z25compute_line_intersection5pointS_S_S_(ptr dead_on_unwind noalias writable sret(%struct.point) align 16 %0, ptr noundef byval(%struct.point) align 16 %1, ptr noundef nonnull byval(%struct.point) align 16 %2, ptr noundef byval(%struct.point) align 16 %3, ptr nocapture noundef byval(%struct.point) align 16 %4) local_unnamed_addr #3 {
  %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 @llvm.lifetime.start.p0(i64 32, ptr nonnull %6) #5
  call void @_ZN5pointmiES_(ptr dead_on_unwind nonnull writable sret(%struct.point) align 16 %6, ptr noundef nonnull align 16 dereferenceable(32) %2, ptr noundef nonnull byval(%struct.point) align 16 %1)
  call void @llvm.memcpy.p0.p0.i64(ptr noundef nonnull align 16 dereferenceable(32) %2, ptr noundef nonnull align 16 dereferenceable(32) %6, i64 32, i1 false), !tbaa.struct !5
  call void @llvm.lifetime.end.p0(i64 32, ptr nonnull %6) #5
  call void @llvm.lifetime.start.p0(i64 32, ptr nonnull %7) #5
  call void @_ZN5pointmiES_(ptr dead_on_unwind nonnull writable sret(%struct.point) align 16 %7, ptr noundef nonnull align 16 dereferenceable(32) %3, ptr noundef nonnull byval(%struct.point) align 16 %4)
  call void @llvm.memcpy.p0.p0.i64(ptr noundef nonnull align 16 dereferenceable(32) %4, ptr noundef nonnull align 16 dereferenceable(32) %7, i64 32, i1 false), !tbaa.struct !5
  call void @llvm.lifetime.end.p0(i64 32, ptr nonnull %7) #5
  call void @llvm.lifetime.start.p0(i64 32, ptr nonnull %8) #5
  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 %1)
  call void @llvm.memcpy.p0.p0.i64(ptr noundef nonnull align 16 dereferenceable(32) %3, ptr noundef nonnull align 16 dereferenceable(32) %8, i64 32, i1 false), !tbaa.struct !5
  call void @llvm.lifetime.end.p0(i64 32, ptr nonnull %8) #5
  %11 = call noundef x86_fp80 @_Z3dot5pointS_(ptr noundef nonnull byval(%struct.point) align 16 %2, ptr noundef nonnull byval(%struct.point) align 16 %2)
  %12 = fcmp ogt x86_fp80 %11, 0xK3FE189705F4136B4A800
  br i1 %12, label %13, label %.critedge

13:                                               ; preds = %5
  %14 = call noundef x86_fp80 @_Z3dot5pointS_(ptr noundef nonnull byval(%struct.point) align 16 %4, ptr noundef nonnull byval(%struct.point) align 16 %4)
  %15 = fcmp ogt x86_fp80 %14, 0xK3FE189705F4136B4A800
  br i1 %15, label %16, label %.critedge

.critedge:                                        ; preds = %5, %13
  call void @__assert_fail(ptr noundef nonnull @.str.4, ptr noundef nonnull @.str.5, i32 noundef 68, ptr noundef nonnull @__PRETTY_FUNCTION__._Z25compute_line_intersection5pointS_S_S_) #6
  unreachable

16:                                               ; preds = %13
  call void @llvm.lifetime.start.p0(i64 32, ptr nonnull %10) #5
  %17 = call noundef x86_fp80 @_Z5cross5pointS_(ptr noundef nonnull byval(%struct.point) align 16 %3, ptr noundef nonnull byval(%struct.point) align 16 %4)
  call void @_ZN5pointmlEe(ptr dead_on_unwind nonnull writable sret(%struct.point) align 16 %10, ptr noundef nonnull align 16 dereferenceable(32) %2, x86_fp80 noundef %17)
  %18 = call noundef x86_fp80 @_Z5cross5pointS_(ptr noundef nonnull byval(%struct.point) align 16 %2, ptr noundef nonnull byval(%struct.point) align 16 %4)
  call void @_ZN5pointdvEe(ptr dead_on_unwind nonnull writable sret(%struct.point) align 16 %9, ptr noundef nonnull align 16 dereferenceable(32) %10, x86_fp80 noundef %18)
  call void @_ZN5pointplES_(ptr dead_on_unwind writable sret(%struct.point) align 16 %0, ptr noundef nonnull align 16 dereferenceable(32) %1, ptr noundef nonnull byval(%struct.point) align 16 %9)
  call void @llvm.lifetime.end.p0(i64 32, ptr nonnull %10) #5
  ret void
}

; Function Attrs: noreturn nounwind
declare void @__assert_fail(ptr noundef, ptr noundef, i32 noundef, ptr noundef) local_unnamed_addr #4

attributes #0 = { mustprogress nocallback nofree 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 = { 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 = { 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 #5 = { nounwind }
attributes #6 = { 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 = !{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,SimplifyCFGPass