; LLVM IR from buresjan/optim_lbm :: nomad/src/Math/Point.ll (ZN9NOMAD_4_35Point8weakLessERKS0_S2_)

; 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"

%"class.NOMAD_4_3::ArrayOfDouble" = type { ptr, i64, ptr }

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

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

; Function Attrs: mustprogress uwtable
define dso_local noundef zeroext i1 @_ZN9NOMAD_4_35Point8weakLessERKS0_S2_(ptr noundef nonnull align 8 dereferenceable(24) %0, ptr noundef nonnull align 8 dereferenceable(24) %1) #1 align 2 {
  %3 = alloca i1, align 1
  %4 = alloca ptr, align 8
  %5 = alloca ptr, align 8
  %6 = alloca i64, align 8
  %7 = alloca i32, align 4
  store ptr %0, ptr %4, align 8, !tbaa !5
  store ptr %1, ptr %5, align 8, !tbaa !5
  %8 = load ptr, ptr %4, align 8, !tbaa !5
  %9 = load ptr, ptr %5, align 8, !tbaa !5
  %10 = icmp eq ptr %8, %9
  br i1 %10, label %11, label %12

11:                                               ; preds = %2
  store i1 false, ptr %3, align 1
  br label %63

12:                                               ; preds = %2
  %13 = load ptr, ptr %4, align 8, !tbaa !5
  %14 = getelementptr inbounds %"class.NOMAD_4_3::ArrayOfDouble", ptr %13, i32 0, i32 1
  %15 = load i64, ptr %14, align 8, !tbaa !9
  %16 = load ptr, ptr %5, align 8, !tbaa !5
  %17 = getelementptr inbounds %"class.NOMAD_4_3::ArrayOfDouble", ptr %16, i32 0, i32 1
  %18 = load i64, ptr %17, align 8, !tbaa !9
  %19 = icmp ult i64 %15, %18
  br i1 %19, label %20, label %21

20:                                               ; preds = %12
  store i1 true, ptr %3, align 1
  br label %63

21:                                               ; preds = %12
  %22 = load ptr, ptr %4, align 8, !tbaa !5
  %23 = getelementptr inbounds %"class.NOMAD_4_3::ArrayOfDouble", ptr %22, i32 0, i32 1
  %24 = load i64, ptr %23, align 8, !tbaa !9
  %25 = load ptr, ptr %5, align 8, !tbaa !5
  %26 = getelementptr inbounds %"class.NOMAD_4_3::ArrayOfDouble", ptr %25, i32 0, i32 1
  %27 = load i64, ptr %26, align 8, !tbaa !9
  %28 = icmp ugt i64 %24, %27
  br i1 %28, label %29, label %30

29:                                               ; preds = %21
  store i1 false, ptr %3, align 1
  br label %63

30:                                               ; preds = %21
  call void @llvm.lifetime.start.p0(i64 8, ptr %6) #3
  store i64 0, ptr %6, align 8, !tbaa !12
  br label %31

31:                                               ; preds = %57, %30
  %32 = load i64, ptr %6, align 8, !tbaa !12
  %33 = load ptr, ptr %4, align 8, !tbaa !5
  %34 = getelementptr inbounds %"class.NOMAD_4_3::ArrayOfDouble", ptr %33, i32 0, i32 1
  %35 = load i64, ptr %34, align 8, !tbaa !9
  %36 = icmp ult i64 %32, %35
  br i1 %36, label %38, label %37

37:                                               ; preds = %31
  store i32 2, ptr %7, align 4
  br label %60

38:                                               ; preds = %31
  %39 = load ptr, ptr %4, align 8, !tbaa !5
  %40 = load i64, ptr %6, align 8, !tbaa !12
  %41 = call noundef nonnull align 8 dereferenceable(17) ptr @_ZNK9NOMAD_4_313ArrayOfDoubleixEm(ptr noundef nonnull align 8 dereferenceable(24) %39, i64 noundef %40)
  %42 = load ptr, ptr %5, align 8, !tbaa !5
  %43 = load i64, ptr %6, align 8, !tbaa !12
  %44 = call noundef nonnull align 8 dereferenceable(17) ptr @_ZNK9NOMAD_4_313ArrayOfDoubleixEm(ptr noundef nonnull align 8 dereferenceable(24) %42, i64 noundef %43)
  %45 = call noundef zeroext i1 @_ZN9NOMAD_4_36Double8weakLessERKS0_S2_(ptr noundef nonnull align 8 dereferenceable(17) %41, ptr noundef nonnull align 8 dereferenceable(17) %44)
  br i1 %45, label %46, label %47

46:                                               ; preds = %38
  store i1 true, ptr %3, align 1
  store i32 1, ptr %7, align 4
  br label %60

47:                                               ; preds = %38
  %48 = load ptr, ptr %5, align 8, !tbaa !5
  %49 = load i64, ptr %6, align 8, !tbaa !12
  %50 = call noundef nonnull align 8 dereferenceable(17) ptr @_ZNK9NOMAD_4_313ArrayOfDoubleixEm(ptr noundef nonnull align 8 dereferenceable(24) %48, i64 noundef %49)
  %51 = load ptr, ptr %4, align 8, !tbaa !5
  %52 = load i64, ptr %6, align 8, !tbaa !12
  %53 = call noundef nonnull align 8 dereferenceable(17) ptr @_ZNK9NOMAD_4_313ArrayOfDoubleixEm(ptr noundef nonnull align 8 dereferenceable(24) %51, i64 noundef %52)
  %54 = call noundef zeroext i1 @_ZN9NOMAD_4_36Double8weakLessERKS0_S2_(ptr noundef nonnull align 8 dereferenceable(17) %50, ptr noundef nonnull align 8 dereferenceable(17) %53)
  br i1 %54, label %55, label %56

55:                                               ; preds = %47
  store i1 false, ptr %3, align 1
  store i32 1, ptr %7, align 4
  br label %60

56:                                               ; preds = %47
  br label %57

57:                                               ; preds = %56
  %58 = load i64, ptr %6, align 8, !tbaa !12
  %59 = add i64 %58, 1
  store i64 %59, ptr %6, align 8, !tbaa !12
  br label %31, !llvm.loop !13

60:                                               ; preds = %55, %46, %37
  call void @llvm.lifetime.end.p0(i64 8, ptr %6) #3
  %61 = load i32, ptr %7, align 4
  switch i32 %61, label %65 [
    i32 2, label %62
    i32 1, label %63
  ]

62:                                               ; preds = %60
  store i1 false, ptr %3, align 1
  br label %63

63:                                               ; preds = %62, %60, %29, %20, %11
  %64 = load i1, ptr %3, align 1
  ret i1 %64

65:                                               ; preds = %60
  unreachable
}

declare noundef zeroext i1 @_ZN9NOMAD_4_36Double8weakLessERKS0_S2_(ptr noundef nonnull align 8 dereferenceable(17), ptr noundef nonnull align 8 dereferenceable(17)) #2

declare noundef nonnull align 8 dereferenceable(17) ptr @_ZNK9NOMAD_4_313ArrayOfDoubleixEm(ptr noundef nonnull align 8 dereferenceable(24), i64 noundef) #2

attributes #0 = { nocallback nofree nosync nounwind willreturn memory(argmem: readwrite) }
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" }
attributes #2 = { "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 = !{!6, !6, i64 0}
!6 = !{!"any pointer", !7, i64 0}
!7 = !{!"omnipotent char", !8, i64 0}
!8 = !{!"Simple C++ TBAA"}
!9 = !{!10, !11, i64 8}
!10 = !{!"_ZTSN9NOMAD_4_313ArrayOfDoubleE", !11, i64 8, !6, i64 16}
!11 = !{!"long", !7, i64 0}
!12 = !{!11, !11, i64 0}
!13 = distinct !{!13, !14}
!14 = !{!"llvm.loop.mustprogress"}


; 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"

; Function Attrs: mustprogress uwtable
define dso_local noundef zeroext i1 @_ZN9NOMAD_4_35Point8weakLessERKS0_S2_(ptr noundef nonnull align 8 dereferenceable(24) %0, ptr noundef nonnull align 8 dereferenceable(24) %1) local_unnamed_addr #0 align 2 {
  %3 = icmp eq ptr %0, %1
  br i1 %3, label %._crit_edge, label %4

4:                                                ; preds = %2
  %5 = getelementptr inbounds i8, ptr %0, i64 8
  %6 = load i64, ptr %5, align 8, !tbaa !5
  %7 = getelementptr inbounds i8, ptr %1, i64 8
  %8 = load i64, ptr %7, align 8, !tbaa !5
  %9 = icmp ult i64 %6, %8
  br i1 %9, label %._crit_edge, label %10

10:                                               ; preds = %4
  %11 = add i64 %6, -1
  %or.cond.not = icmp ult i64 %11, %8
  br i1 %or.cond.not, label %.lr.ph, label %._crit_edge

12:                                               ; preds = %18
  %13 = add nuw i64 %.01825, 1
  %14 = load i64, ptr %5, align 8, !tbaa !5
  %.not = icmp ult i64 %13, %14
  br i1 %.not, label %.lr.ph, label %._crit_edge.loopexit, !llvm.loop !11

.lr.ph:                                           ; preds = %10, %12
  %.01825 = phi i64 [ %13, %12 ], [ 0, %10 ]
  %15 = tail call noundef nonnull align 8 dereferenceable(17) ptr @_ZNK9NOMAD_4_313ArrayOfDoubleixEm(ptr noundef nonnull align 8 dereferenceable(24) %0, i64 noundef %.01825)
  %16 = tail call noundef nonnull align 8 dereferenceable(17) ptr @_ZNK9NOMAD_4_313ArrayOfDoubleixEm(ptr noundef nonnull align 8 dereferenceable(24) %1, i64 noundef %.01825)
  %17 = tail call noundef zeroext i1 @_ZN9NOMAD_4_36Double8weakLessERKS0_S2_(ptr noundef nonnull align 8 dereferenceable(17) %15, ptr noundef nonnull align 8 dereferenceable(17) %16)
  br i1 %17, label %._crit_edge.loopexit, label %18

18:                                               ; preds = %.lr.ph
  %19 = tail call noundef nonnull align 8 dereferenceable(17) ptr @_ZNK9NOMAD_4_313ArrayOfDoubleixEm(ptr noundef nonnull align 8 dereferenceable(24) %1, i64 noundef %.01825)
  %20 = tail call noundef nonnull align 8 dereferenceable(17) ptr @_ZNK9NOMAD_4_313ArrayOfDoubleixEm(ptr noundef nonnull align 8 dereferenceable(24) %0, i64 noundef %.01825)
  %21 = tail call noundef zeroext i1 @_ZN9NOMAD_4_36Double8weakLessERKS0_S2_(ptr noundef nonnull align 8 dereferenceable(17) %19, ptr noundef nonnull align 8 dereferenceable(17) %20)
  br i1 %21, label %._crit_edge.loopexit, label %12

._crit_edge.loopexit:                             ; preds = %18, %.lr.ph, %12
  %.not.lcssa.ph = phi i1 [ false, %12 ], [ true, %.lr.ph ], [ true, %18 ]
  %.019.ph = phi i1 [ undef, %12 ], [ true, %.lr.ph ], [ false, %18 ]
  %22 = and i1 %.not.lcssa.ph, %.019.ph
  br label %._crit_edge

._crit_edge:                                      ; preds = %._crit_edge.loopexit, %10, %4, %2
  %.1 = phi i1 [ false, %2 ], [ true, %4 ], [ false, %10 ], [ %22, %._crit_edge.loopexit ]
  ret i1 %.1
}

declare noundef zeroext i1 @_ZN9NOMAD_4_36Double8weakLessERKS0_S2_(ptr noundef nonnull align 8 dereferenceable(17), ptr noundef nonnull align 8 dereferenceable(17)) local_unnamed_addr #1

declare noundef nonnull align 8 dereferenceable(17) ptr @_ZNK9NOMAD_4_313ArrayOfDoubleixEm(ptr noundef nonnull align 8 dereferenceable(24), i64 noundef) local_unnamed_addr #1

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 = { "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)"}
!5 = !{!6, !7, i64 8}
!6 = !{!"_ZTSN9NOMAD_4_313ArrayOfDoubleE", !7, i64 8, !10, i64 16}
!7 = !{!"long", !8, i64 0}
!8 = !{!"omnipotent char", !9, i64 0}
!9 = !{!"Simple C++ TBAA"}
!10 = !{!"any pointer", !8, i64 0}
!11 = distinct !{!11, !12}
!12 = !{!"llvm.loop.mustprogress"}


; Effective O3 passes: CorrelatedValuePropagationPass,EarlyCSEPass,GVNPass,GlobalOptPass,IPSCCPPass,InferFunctionAttrsPass,InstCombinePass,JumpThreadingPass,LCSSAPass,LoopRotatePass,LoopSimplifyPass,LoopUnrollPass,SROAPass,SimplifyCFGPass,TailCallElimPass