; LLVM IR from ERGO-Code/HiGHS :: src/model/HighsHessian.ll (ZNK12HighsHessian7scaleOkEidd)

; 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.HighsHessian = type { i32, i32, %"class.std::vector", %"class.std::vector", %"class.std::vector.3" }
%"class.std::vector" = type { %"struct.std::_Vector_base" }
%"struct.std::_Vector_base" = type { %"struct.std::_Vector_base<int, std::allocator<int>>::_Vector_impl" }
%"struct.std::_Vector_base<int, std::allocator<int>>::_Vector_impl" = type { %"struct.std::_Vector_base<int, std::allocator<int>>::_Vector_impl_data" }
%"struct.std::_Vector_base<int, std::allocator<int>>::_Vector_impl_data" = type { ptr, ptr, ptr }
%"class.std::vector.3" = type { %"struct.std::_Vector_base.4" }
%"struct.std::_Vector_base.4" = type { %"struct.std::_Vector_base<double, std::allocator<double>>::_Vector_impl" }
%"struct.std::_Vector_base<double, std::allocator<double>>::_Vector_impl" = type { %"struct.std::_Vector_base<double, std::allocator<double>>::_Vector_impl_data" }
%"struct.std::_Vector_base<double, std::allocator<double>>::_Vector_impl_data" = type { ptr, ptr, 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 @_ZNK12HighsHessian7scaleOkEidd(ptr noundef nonnull align 8 dereferenceable(80) %0, i32 noundef %1, double noundef %2, double noundef %3) #1 align 2 {
  %5 = alloca i1, align 1
  %6 = alloca ptr, align 8
  %7 = alloca i32, align 4
  %8 = alloca double, align 8
  %9 = alloca double, align 8
  %10 = alloca double, align 8
  %11 = alloca i32, align 4
  %12 = alloca i32, align 4
  %13 = alloca double, align 8
  store ptr %0, ptr %6, align 8, !tbaa !5
  store i32 %1, ptr %7, align 4, !tbaa !9
  store double %2, ptr %8, align 8, !tbaa !11
  store double %3, ptr %9, align 8, !tbaa !11
  %14 = load ptr, ptr %6, align 8
  %15 = getelementptr inbounds %class.HighsHessian, ptr %14, i32 0, i32 0
  %16 = load i32, ptr %15, align 8, !tbaa !13
  %17 = icmp ne i32 %16, 0
  br i1 %17, label %19, label %18

18:                                               ; preds = %4
  store i1 true, ptr %5, align 1
  br label %61

19:                                               ; preds = %4
  call void @llvm.lifetime.start.p0(i64 8, ptr %10) #4
  %20 = load i32, ptr %7, align 4, !tbaa !9
  %21 = call noundef double @_ZSt3powIiiEN9__gnu_cxx9__promoteIDTplcvNS1_IT_Xsr3std12__is_integerIS2_EE7__valueEE6__typeELi0EcvNS1_IT0_Xsr3std12__is_integerIS5_EE7__valueEE6__typeELi0EEXsr3std12__is_integerIS8_EE7__valueEE6__typeES2_S5_(i32 noundef 2, i32 noundef %20)
  store double %21, ptr %10, align 8, !tbaa !11
  call void @llvm.lifetime.start.p0(i64 4, ptr %11) #4
  store i32 0, ptr %11, align 4, !tbaa !9
  br label %22

22:                                               ; preds = %54, %19
  %23 = load i32, ptr %11, align 4, !tbaa !9
  %24 = getelementptr inbounds %class.HighsHessian, ptr %14, i32 0, i32 2
  %25 = getelementptr inbounds %class.HighsHessian, ptr %14, i32 0, i32 0
  %26 = load i32, ptr %25, align 8, !tbaa !13
  %27 = sext i32 %26 to i64
  %28 = call noundef nonnull align 4 dereferenceable(4) ptr @_ZNKSt6vectorIiSaIiEEixEm(ptr noundef nonnull align 8 dereferenceable(24) %24, i64 noundef %27) #4
  %29 = load i32, ptr %28, align 4, !tbaa !9
  %30 = icmp slt i32 %23, %29
  br i1 %30, label %32, label %31

31:                                               ; preds = %22
  store i32 2, ptr %12, align 4
  br label %57

32:                                               ; preds = %22
  call void @llvm.lifetime.start.p0(i64 8, ptr %13) #4
  %33 = getelementptr inbounds %class.HighsHessian, ptr %14, i32 0, i32 4
  %34 = load i32, ptr %11, align 4, !tbaa !9
  %35 = sext i32 %34 to i64
  %36 = call noundef nonnull align 8 dereferenceable(8) ptr @_ZNKSt6vectorIdSaIdEEixEm(ptr noundef nonnull align 8 dereferenceable(24) %33, i64 noundef %35) #4
  %37 = load double, ptr %36, align 8, !tbaa !11
  %38 = load double, ptr %10, align 8, !tbaa !11
  %39 = fmul double %37, %38
  %40 = call noundef double @_ZSt3absd(double noundef %39)
  store double %40, ptr %13, align 8, !tbaa !11
  %41 = load double, ptr %13, align 8, !tbaa !11
  %42 = load double, ptr %9, align 8, !tbaa !11
  %43 = fcmp oge double %41, %42
  br i1 %43, label %44, label %45

44:                                               ; preds = %32
  store i1 false, ptr %5, align 1
  store i32 1, ptr %12, align 4
  br label %51

45:                                               ; preds = %32
  %46 = load double, ptr %13, align 8, !tbaa !11
  %47 = load double, ptr %8, align 8, !tbaa !11
  %48 = fcmp ole double %46, %47
  br i1 %48, label %49, label %50

49:                                               ; preds = %45
  store i1 false, ptr %5, align 1
  store i32 1, ptr %12, align 4
  br label %51

50:                                               ; preds = %45
  store i32 0, ptr %12, align 4
  br label %51

51:                                               ; preds = %50, %49, %44
  call void @llvm.lifetime.end.p0(i64 8, ptr %13) #4
  %52 = load i32, ptr %12, align 4
  switch i32 %52, label %57 [
    i32 0, label %53
  ]

53:                                               ; preds = %51
  br label %54

54:                                               ; preds = %53
  %55 = load i32, ptr %11, align 4, !tbaa !9
  %56 = add nsw i32 %55, 1
  store i32 %56, ptr %11, align 4, !tbaa !9
  br label %22, !llvm.loop !24

57:                                               ; preds = %51, %31
  call void @llvm.lifetime.end.p0(i64 4, ptr %11) #4
  %58 = load i32, ptr %12, align 4
  switch i32 %58, label %60 [
    i32 2, label %59
  ]

59:                                               ; preds = %57
  store i1 true, ptr %5, align 1
  store i32 1, ptr %12, align 4
  br label %60

60:                                               ; preds = %59, %57
  call void @llvm.lifetime.end.p0(i64 8, ptr %10) #4
  br label %61

61:                                               ; preds = %60, %18
  %62 = load i1, ptr %5, align 1
  ret i1 %62
}

; Function Attrs: inlinehint mustprogress nounwind uwtable
declare dso_local noundef double @_ZSt3powIiiEN9__gnu_cxx9__promoteIDTplcvNS1_IT_Xsr3std12__is_integerIS2_EE7__valueEE6__typeELi0EcvNS1_IT0_Xsr3std12__is_integerIS5_EE7__valueEE6__typeELi0EEXsr3std12__is_integerIS8_EE7__valueEE6__typeES2_S5_(i32 noundef, i32 noundef) #2

; Function Attrs: mustprogress nounwind uwtable
declare dso_local noundef nonnull align 4 dereferenceable(4) ptr @_ZNKSt6vectorIiSaIiEEixEm(ptr noundef nonnull align 8 dereferenceable(24), i64 noundef) #3 align 2

; Function Attrs: inlinehint mustprogress nounwind uwtable
declare dso_local noundef double @_ZSt3absd(double noundef) #2

; Function Attrs: mustprogress nounwind uwtable
declare dso_local noundef nonnull align 8 dereferenceable(8) ptr @_ZNKSt6vectorIdSaIdEEixEm(ptr noundef nonnull align 8 dereferenceable(24), i64 noundef) #3 align 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 = { 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 #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 = !{!6, !6, i64 0}
!6 = !{!"any pointer", !7, i64 0}
!7 = !{!"omnipotent char", !8, i64 0}
!8 = !{!"Simple C++ TBAA"}
!9 = !{!10, !10, i64 0}
!10 = !{!"int", !7, i64 0}
!11 = !{!12, !12, i64 0}
!12 = !{!"double", !7, i64 0}
!13 = !{!14, !10, i64 0}
!14 = !{!"_ZTS12HighsHessian", !10, i64 0, !15, i64 4, !16, i64 8, !16, i64 32, !20, i64 56}
!15 = !{!"_ZTS13HessianFormat", !7, i64 0}
!16 = !{!"_ZTSSt6vectorIiSaIiEE", !17, i64 0}
!17 = !{!"_ZTSSt12_Vector_baseIiSaIiEE", !18, i64 0}
!18 = !{!"_ZTSNSt12_Vector_baseIiSaIiEE12_Vector_implE", !19, i64 0}
!19 = !{!"_ZTSNSt12_Vector_baseIiSaIiEE17_Vector_impl_dataE", !6, i64 0, !6, i64 8, !6, i64 16}
!20 = !{!"_ZTSSt6vectorIdSaIdEE", !21, i64 0}
!21 = !{!"_ZTSSt12_Vector_baseIdSaIdEE", !22, i64 0}
!22 = !{!"_ZTSNSt12_Vector_baseIdSaIdEE12_Vector_implE", !23, i64 0}
!23 = !{!"_ZTSNSt12_Vector_baseIdSaIdEE17_Vector_impl_dataE", !6, i64 0, !6, i64 8, !6, i64 16}
!24 = distinct !{!24, !25}
!25 = !{!"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 nounwind uwtable
define dso_local noundef zeroext i1 @_ZNK12HighsHessian7scaleOkEidd(ptr noundef nonnull align 8 dereferenceable(80) %0, i32 noundef %1, double noundef %2, double noundef %3) local_unnamed_addr #0 align 2 {
  %5 = load i32, ptr %0, align 8, !tbaa !5
  %.not = icmp eq i32 %5, 0
  br i1 %.not, label %.critedge, label %6

6:                                                ; preds = %4
  %7 = tail call noundef double @_ZSt3powIiiEN9__gnu_cxx9__promoteIDTplcvNS1_IT_Xsr3std12__is_integerIS2_EE7__valueEE6__typeELi0EcvNS1_IT0_Xsr3std12__is_integerIS5_EE7__valueEE6__typeELi0EEXsr3std12__is_integerIS8_EE7__valueEE6__typeES2_S5_(i32 noundef 2, i32 noundef %1)
  %8 = getelementptr inbounds i8, ptr %0, i64 8
  %9 = load i32, ptr %0, align 8, !tbaa !5
  %10 = sext i32 %9 to i64
  %11 = tail call noundef nonnull align 4 dereferenceable(4) ptr @_ZNKSt6vectorIiSaIiEEixEm(ptr noundef nonnull align 8 dereferenceable(24) %8, i64 noundef %10) #2
  %12 = load i32, ptr %11, align 4, !tbaa !20
  %.not17.not19 = icmp sgt i32 %12, 0
  br i1 %.not17.not19, label %.lr.ph, label %.critedge

.lr.ph:                                           ; preds = %6
  %13 = getelementptr inbounds i8, ptr %0, i64 56
  br label %20

14:                                               ; preds = %20
  %indvars.iv.next = add nuw nsw i64 %indvars.iv, 1
  %15 = load i32, ptr %0, align 8, !tbaa !5
  %16 = sext i32 %15 to i64
  %17 = tail call noundef nonnull align 4 dereferenceable(4) ptr @_ZNKSt6vectorIiSaIiEEixEm(ptr noundef nonnull align 8 dereferenceable(24) %8, i64 noundef %16) #2
  %18 = load i32, ptr %17, align 4, !tbaa !20
  %19 = sext i32 %18 to i64
  %.not17.not = icmp slt i64 %indvars.iv.next, %19
  br i1 %.not17.not, label %20, label %.critedge, !llvm.loop !21

20:                                               ; preds = %.lr.ph, %14
  %indvars.iv = phi i64 [ 0, %.lr.ph ], [ %indvars.iv.next, %14 ]
  %21 = tail call noundef nonnull align 8 dereferenceable(8) ptr @_ZNKSt6vectorIdSaIdEEixEm(ptr noundef nonnull align 8 dereferenceable(24) %13, i64 noundef %indvars.iv) #2
  %22 = load double, ptr %21, align 8, !tbaa !23
  %23 = fmul double %7, %22
  %24 = tail call noundef double @_ZSt3absd(double noundef %23)
  %25 = fcmp ult double %24, %3
  %26 = fcmp ugt double %24, %2
  %or.cond = and i1 %25, %26
  br i1 %or.cond, label %14, label %.critedge

.critedge:                                        ; preds = %20, %14, %6, %4
  %.4 = phi i1 [ true, %4 ], [ true, %6 ], [ %or.cond, %14 ], [ %or.cond, %20 ]
  ret i1 %.4
}

; Function Attrs: inlinehint mustprogress nounwind uwtable
declare dso_local noundef double @_ZSt3powIiiEN9__gnu_cxx9__promoteIDTplcvNS1_IT_Xsr3std12__is_integerIS2_EE7__valueEE6__typeELi0EcvNS1_IT0_Xsr3std12__is_integerIS5_EE7__valueEE6__typeELi0EEXsr3std12__is_integerIS8_EE7__valueEE6__typeES2_S5_(i32 noundef, i32 noundef) local_unnamed_addr #1

; Function Attrs: mustprogress nounwind uwtable
declare dso_local noundef nonnull align 4 dereferenceable(4) ptr @_ZNKSt6vectorIiSaIiEEixEm(ptr noundef nonnull align 8 dereferenceable(24), i64 noundef) local_unnamed_addr #0 align 2

; Function Attrs: inlinehint mustprogress nounwind uwtable
declare dso_local noundef double @_ZSt3absd(double noundef) local_unnamed_addr #1

; Function Attrs: mustprogress nounwind uwtable
declare dso_local noundef nonnull align 8 dereferenceable(8) ptr @_ZNKSt6vectorIdSaIdEEixEm(ptr noundef nonnull align 8 dereferenceable(24), i64 noundef) local_unnamed_addr #0 align 2

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 = { 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 #2 = { 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, !7, i64 0}
!6 = !{!"_ZTS12HighsHessian", !7, i64 0, !10, i64 4, !11, i64 8, !11, i64 32, !16, i64 56}
!7 = !{!"int", !8, i64 0}
!8 = !{!"omnipotent char", !9, i64 0}
!9 = !{!"Simple C++ TBAA"}
!10 = !{!"_ZTS13HessianFormat", !8, i64 0}
!11 = !{!"_ZTSSt6vectorIiSaIiEE", !12, i64 0}
!12 = !{!"_ZTSSt12_Vector_baseIiSaIiEE", !13, i64 0}
!13 = !{!"_ZTSNSt12_Vector_baseIiSaIiEE12_Vector_implE", !14, i64 0}
!14 = !{!"_ZTSNSt12_Vector_baseIiSaIiEE17_Vector_impl_dataE", !15, i64 0, !15, i64 8, !15, i64 16}
!15 = !{!"any pointer", !8, i64 0}
!16 = !{!"_ZTSSt6vectorIdSaIdEE", !17, i64 0}
!17 = !{!"_ZTSSt12_Vector_baseIdSaIdEE", !18, i64 0}
!18 = !{!"_ZTSNSt12_Vector_baseIdSaIdEE12_Vector_implE", !19, i64 0}
!19 = !{!"_ZTSNSt12_Vector_baseIdSaIdEE17_Vector_impl_dataE", !15, i64 0, !15, i64 8, !15, i64 16}
!20 = !{!7, !7, i64 0}
!21 = distinct !{!21, !22}
!22 = !{!"llvm.loop.mustprogress"}
!23 = !{!24, !24, i64 0}
!24 = !{!"double", !8, i64 0}


; Effective O3 passes: CorrelatedValuePropagationPass,EarlyCSEPass,GlobalOptPass,IPSCCPPass,IndVarSimplifyPass,InferFunctionAttrsPass,InstCombinePass,InstSimplifyPass,JumpThreadingPass,LCSSAPass,LICMPass,LoopRotatePass,LoopSimplifyPass,LoopUnrollPass,PostOrderFunctionAttrsPass,ReassociatePass,SROAPass,SimplifyCFGPass,TailCallElimPass