; LLVM IR from imeplusplus/icpc-notebook :: geometry/lines.ll (Z17distance_ray_line5pointS_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 }

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

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

; Function Attrs: mustprogress uwtable
declare dso_local noundef x86_fp80 @_Z19distance_point_line5pointS_S_(ptr noundef byval(%struct.point) align 16, ptr noundef byval(%struct.point) align 16, ptr noundef byval(%struct.point) align 16) #2

; Function Attrs: mustprogress uwtable
declare dso_local noundef zeroext i1 @_Z18ray_line_intersect5pointS_S_S_(ptr noundef byval(%struct.point) align 16, ptr noundef byval(%struct.point) align 16, ptr noundef byval(%struct.point) align 16, ptr noundef byval(%struct.point) align 16) #2

; Function Attrs: mustprogress uwtable
define dso_local noundef x86_fp80 @_Z17distance_ray_line5pointS_S_S_(ptr noundef byval(%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) #2 {
  %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 x86_fp80, align 16
  %11 = alloca %struct.point, align 16
  %12 = alloca %struct.point, align 16
  %13 = alloca %struct.point, align 16
  call void @llvm.memcpy.p0.p0.i64(ptr align 16 %6, ptr align 16 %0, i64 32, i1 false), !tbaa.struct !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 @llvm.memcpy.p0.p0.i64(ptr align 16 %8, ptr align 16 %2, i64 32, i1 false), !tbaa.struct !5
  call void @llvm.memcpy.p0.p0.i64(ptr align 16 %9, ptr align 16 %3, i64 32, i1 false), !tbaa.struct !5
  %14 = call noundef zeroext i1 @_Z18ray_line_intersect5pointS_S_S_(ptr noundef byval(%struct.point) align 16 %6, ptr noundef byval(%struct.point) align 16 %7, ptr noundef byval(%struct.point) align 16 %8, ptr noundef byval(%struct.point) align 16 %9)
  br i1 %14, label %15, label %16

15:                                               ; preds = %4
  store x86_fp80 0xK00000000000000000000, ptr %5, align 16
  br label %19

16:                                               ; preds = %4
  call void @llvm.lifetime.start.p0(i64 16, ptr %10) #3
  call void @llvm.memcpy.p0.p0.i64(ptr align 16 %11, ptr align 16 %0, i64 32, i1 false), !tbaa.struct !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 %3, i64 32, i1 false), !tbaa.struct !5
  %17 = call noundef x86_fp80 @_Z19distance_point_line5pointS_S_(ptr noundef byval(%struct.point) align 16 %11, ptr noundef byval(%struct.point) align 16 %12, ptr noundef byval(%struct.point) align 16 %13)
  store x86_fp80 %17, ptr %10, align 16, !tbaa !6
  %18 = load x86_fp80, ptr %10, align 16, !tbaa !6
  store x86_fp80 %18, ptr %5, align 16
  call void @llvm.lifetime.end.p0(i64 16, ptr %10) #3
  br label %19

19:                                               ; preds = %16, %15
  %20 = load x86_fp80, ptr %5, align 16
  ret x86_fp80 %20
}

attributes #0 = { nocallback nofree nounwind willreturn memory(argmem: readwrite) }
attributes #1 = { nocallback nofree nosync nounwind willreturn memory(argmem: readwrite) }
attributes #2 = { 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 #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)"}
!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 uwtable
declare dso_local noundef x86_fp80 @_Z19distance_point_line5pointS_S_(ptr noundef byval(%struct.point) align 16, ptr noundef byval(%struct.point) align 16, ptr noundef byval(%struct.point) align 16) local_unnamed_addr #0

; Function Attrs: mustprogress uwtable
declare dso_local noundef zeroext i1 @_Z18ray_line_intersect5pointS_S_S_(ptr noundef byval(%struct.point) align 16, ptr noundef byval(%struct.point) align 16, ptr noundef byval(%struct.point) align 16, ptr noundef byval(%struct.point) align 16) local_unnamed_addr #0

; Function Attrs: mustprogress uwtable
define dso_local noundef x86_fp80 @_Z17distance_ray_line5pointS_S_S_(ptr nocapture noundef readonly byval(%struct.point) align 16 %0, ptr nocapture noundef readonly byval(%struct.point) align 16 %1, ptr nocapture noundef readonly byval(%struct.point) align 16 %2, ptr nocapture noundef readonly byval(%struct.point) align 16 %3) local_unnamed_addr #0 {
  %5 = tail call noundef zeroext i1 @_Z18ray_line_intersect5pointS_S_S_(ptr noundef nonnull byval(%struct.point) align 16 %0, ptr noundef nonnull byval(%struct.point) align 16 %1, ptr noundef nonnull byval(%struct.point) align 16 %2, ptr noundef nonnull byval(%struct.point) align 16 %3)
  br i1 %5, label %8, label %6

6:                                                ; preds = %4
  %7 = tail call noundef x86_fp80 @_Z19distance_point_line5pointS_S_(ptr noundef nonnull byval(%struct.point) align 16 %0, ptr noundef nonnull byval(%struct.point) align 16 %2, ptr noundef nonnull byval(%struct.point) align 16 %3)
  br label %8

8:                                                ; preds = %4, %6
  %.0 = phi x86_fp80 [ %7, %6 ], [ 0xK00000000000000000000, %4 ]
  ret x86_fp80 %.0
}

attributes #0 = { 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: DSEPass,GlobalOptPass,InferFunctionAttrsPass,InstCombinePass,MemCpyOptPass,PostOrderFunctionAttrsPass,SROAPass,SimplifyCFGPass,TailCallElimPass