; LLVM IR from imeplusplus/icpc-notebook :: geometry/radial_sort.ll (Z3cmp5pointS_)

; 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 }

@origin = external dso_local global %struct.point, align 16

; Function Attrs: mustprogress uwtable
declare dso_local noundef i32 @_ZN5point3dirES_S_(ptr noundef nonnull align 16 dereferenceable(32), ptr noundef byval(%struct.point) align 16, ptr noundef byval(%struct.point) align 16) #0 align 2

; 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: 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 nounwind uwtable
declare dso_local noundef i32 @_Z5above5point(ptr noundef byval(%struct.point) align 16) #3

; Function Attrs: mustprogress uwtable
define dso_local noundef zeroext i1 @_Z3cmp5pointS_(ptr noundef byval(%struct.point) align 16 %0, ptr noundef byval(%struct.point) align 16 %1) #0 {
  %3 = alloca i1, align 1
  %4 = alloca i32, align 4
  %5 = alloca %struct.point, align 16
  %6 = alloca %struct.point, align 16
  %7 = alloca i32, align 4
  %8 = alloca %struct.point, align 16
  %9 = alloca %struct.point, align 16
  call void @llvm.lifetime.start.p0(i64 4, ptr %4) #4
  call void @llvm.memcpy.p0.p0.i64(ptr align 16 %5, ptr align 16 %1, i64 32, i1 false), !tbaa.struct !5
  %10 = call noundef i32 @_Z5above5point(ptr noundef byval(%struct.point) align 16 %5)
  call void @llvm.memcpy.p0.p0.i64(ptr align 16 %6, ptr align 16 %0, i64 32, i1 false), !tbaa.struct !5
  %11 = call noundef i32 @_Z5above5point(ptr noundef byval(%struct.point) align 16 %6)
  %12 = sub nsw i32 %10, %11
  store i32 %12, ptr %4, align 4, !tbaa !10
  %13 = load i32, ptr %4, align 4, !tbaa !10
  %14 = icmp ne i32 %13, 0
  br i1 %14, label %15, label %18

15:                                               ; preds = %2
  %16 = load i32, ptr %4, align 4, !tbaa !10
  %17 = icmp sgt i32 %16, 0
  store i1 %17, ptr %3, align 1
  store i32 1, ptr %7, align 4
  br label %21

18:                                               ; preds = %2
  call void @llvm.memcpy.p0.p0.i64(ptr align 16 %8, ptr align 16 @origin, i64 32, i1 false), !tbaa.struct !5
  call void @llvm.memcpy.p0.p0.i64(ptr align 16 %9, ptr align 16 %1, i64 32, i1 false), !tbaa.struct !5
  %19 = call noundef i32 @_ZN5point3dirES_S_(ptr noundef nonnull align 16 dereferenceable(32) %0, ptr noundef byval(%struct.point) align 16 %8, ptr noundef byval(%struct.point) align 16 %9)
  %20 = icmp sgt i32 %19, 0
  store i1 %20, ptr %3, align 1
  store i32 1, ptr %7, align 4
  br label %21

21:                                               ; preds = %18, %15
  call void @llvm.lifetime.end.p0(i64 4, ptr %4) #4
  %22 = load i1, ptr %3, align 1
  ret i1 %22
}

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" }
attributes #1 = { nocallback nofree nounwind willreturn memory(argmem: readwrite) }
attributes #2 = { nocallback nofree nosync nounwind willreturn memory(argmem: readwrite) }
attributes #3 = { 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 #4 = { 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"}
!10 = !{!11, !11, i64 0}
!11 = !{!"int", !8, i64 0}


; 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 }

@origin = external dso_local local_unnamed_addr global %struct.point, align 16

; Function Attrs: mustprogress uwtable
declare dso_local noundef i32 @_ZN5point3dirES_S_(ptr noundef nonnull align 16 dereferenceable(32), ptr noundef byval(%struct.point) align 16, ptr noundef byval(%struct.point) align 16) local_unnamed_addr #0 align 2

; Function Attrs: mustprogress nounwind uwtable
declare dso_local noundef i32 @_Z5above5point(ptr noundef byval(%struct.point) align 16) local_unnamed_addr #1

; Function Attrs: mustprogress uwtable
define dso_local noundef zeroext i1 @_Z3cmp5pointS_(ptr noundef byval(%struct.point) align 16 %0, ptr nocapture noundef readonly byval(%struct.point) align 16 %1) local_unnamed_addr #0 {
  %3 = tail call noundef i32 @_Z5above5point(ptr noundef nonnull byval(%struct.point) align 16 %1)
  %4 = tail call noundef i32 @_Z5above5point(ptr noundef nonnull byval(%struct.point) align 16 %0)
  %.not = icmp eq i32 %3, %4
  br i1 %.not, label %7, label %5

5:                                                ; preds = %2
  %6 = icmp sgt i32 %3, %4
  br label %10

7:                                                ; preds = %2
  %8 = call noundef i32 @_ZN5point3dirES_S_(ptr noundef nonnull align 16 dereferenceable(32) %0, ptr noundef nonnull byval(%struct.point) align 16 @origin, ptr noundef nonnull byval(%struct.point) align 16 %1)
  %9 = icmp sgt i32 %8, 0
  br label %10

10:                                               ; preds = %7, %5
  %.0 = phi i1 [ %6, %5 ], [ %9, %7 ]
  ret i1 %.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" }
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" }

!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,TailCallElimPass