; LLVM IR from ERGO-Code/HiGHS :: src/util (HighsSparseMatrix)

; 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.HighsSparseMatrix = type { i32, i32, i32, %"class.std::vector", %"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 }

@.str.117 = external hidden unnamed_addr constant [23 x i8], align 1
@.str.118 = external hidden unnamed_addr constant [2 x i8], align 1
@.str.119 = external hidden unnamed_addr constant [14 x i8], align 1

; 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 nounwind uwtable
declare dso_local noundef nonnull align 4 dereferenceable(4) ptr @_ZNKSt6vectorIiSaIiEEixEm(ptr noundef nonnull align 8 dereferenceable(24), i64 noundef) #1 align 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) #1 align 2

; Function Attrs: nocallback nofree nosync nounwind speculatable willreturn memory(none)
declare double @llvm.fabs.f64(double) #2

; Function Attrs: nocallback nofree nosync nounwind speculatable willreturn memory(none)
declare double @llvm.fmuladd.f64(double, double, double) #2

; Function Attrs: mustprogress nounwind uwtable
declare dso_local noundef double @_ZNK12HighsCDoublecvdEv(ptr noundef nonnull align 8 dereferenceable(16)) #1 align 2

declare i32 @printf(ptr noundef, ...) #3

; Function Attrs: mustprogress uwtable
define dso_local void @_ZNK17HighsSparseMatrix19debugReportRowPriceEidiRKSt6vectorI12HighsCDoubleSaIS1_EE(ptr noundef nonnull align 8 dereferenceable(112) %0, i32 noundef %1, double noundef %2, i32 noundef %3, ptr noundef nonnull align 8 dereferenceable(24) %4) #4 align 2 {
  %6 = alloca ptr, align 8
  %7 = alloca i32, align 4
  %8 = alloca double, align 8
  %9 = alloca i32, align 4
  %10 = alloca ptr, align 8
  %11 = alloca i32, align 4
  %12 = alloca i32, align 4
  %13 = alloca i32, align 4
  %14 = alloca double, align 8
  %15 = alloca double, align 8
  %16 = 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 i32 %3, ptr %9, align 4, !tbaa !9
  store ptr %4, ptr %10, align 8, !tbaa !5
  %17 = load ptr, ptr %6, align 8
  %18 = getelementptr inbounds %class.HighsSparseMatrix, ptr %17, i32 0, i32 3
  %19 = load i32, ptr %7, align 4, !tbaa !9
  %20 = sext i32 %19 to i64
  %21 = call noundef nonnull align 4 dereferenceable(4) ptr @_ZNKSt6vectorIiSaIiEEixEm(ptr noundef nonnull align 8 dereferenceable(24) %18, i64 noundef %20) #5
  %22 = load i32, ptr %21, align 4, !tbaa !9
  %23 = load i32, ptr %9, align 4, !tbaa !9
  %24 = icmp sge i32 %22, %23
  br i1 %24, label %25, label %26

25:                                               ; preds = %5
  br label %83

26:                                               ; preds = %5
  %27 = load i32, ptr %7, align 4, !tbaa !9
  %28 = load double, ptr %8, align 8, !tbaa !11
  %29 = call i32 (ptr, ...) @printf(ptr noundef @.str.117, i32 noundef %27, double noundef %28)
  call void @llvm.lifetime.start.p0(i64 4, ptr %11) #5
  store i32 0, ptr %11, align 4, !tbaa !9
  call void @llvm.lifetime.start.p0(i64 4, ptr %12) #5
  %30 = getelementptr inbounds %class.HighsSparseMatrix, ptr %17, i32 0, i32 3
  %31 = load i32, ptr %7, align 4, !tbaa !9
  %32 = sext i32 %31 to i64
  %33 = call noundef nonnull align 4 dereferenceable(4) ptr @_ZNKSt6vectorIiSaIiEEixEm(ptr noundef nonnull align 8 dereferenceable(24) %30, i64 noundef %32) #5
  %34 = load i32, ptr %33, align 4, !tbaa !9
  store i32 %34, ptr %12, align 4, !tbaa !9
  br label %35

35:                                               ; preds = %78, %26
  %36 = load i32, ptr %12, align 4, !tbaa !9
  %37 = load i32, ptr %9, align 4, !tbaa !9
  %38 = icmp slt i32 %36, %37
  br i1 %38, label %40, label %39

39:                                               ; preds = %35
  call void @llvm.lifetime.end.p0(i64 4, ptr %12) #5
  br label %81

40:                                               ; preds = %35
  call void @llvm.lifetime.start.p0(i64 4, ptr %13) #5
  %41 = getelementptr inbounds %class.HighsSparseMatrix, ptr %17, i32 0, i32 5
  %42 = load i32, ptr %12, align 4, !tbaa !9
  %43 = sext i32 %42 to i64
  %44 = call noundef nonnull align 4 dereferenceable(4) ptr @_ZNKSt6vectorIiSaIiEEixEm(ptr noundef nonnull align 8 dereferenceable(24) %41, i64 noundef %43) #5
  %45 = load i32, ptr %44, align 4, !tbaa !9
  store i32 %45, ptr %13, align 4, !tbaa !9
  call void @llvm.lifetime.start.p0(i64 8, ptr %14) #5
  %46 = load ptr, ptr %10, align 8, !tbaa !5
  %47 = load i32, ptr %13, align 4, !tbaa !9
  %48 = sext i32 %47 to i64
  %49 = call noundef nonnull align 8 dereferenceable(16) ptr @_ZNKSt6vectorI12HighsCDoubleSaIS0_EEixEm(ptr noundef nonnull align 8 dereferenceable(24) %46, i64 noundef %48) #5
  %50 = call noundef double @_ZNK12HighsCDoublecvdEv(ptr noundef nonnull align 8 dereferenceable(16) %49)
  store double %50, ptr %14, align 8, !tbaa !11
  call void @llvm.lifetime.start.p0(i64 8, ptr %15) #5
  %51 = load double, ptr %14, align 8, !tbaa !11
  %52 = load double, ptr %8, align 8, !tbaa !11
  %53 = getelementptr inbounds %class.HighsSparseMatrix, ptr %17, i32 0, i32 6
  %54 = load i32, ptr %12, align 4, !tbaa !9
  %55 = sext i32 %54 to i64
  %56 = call noundef nonnull align 8 dereferenceable(8) ptr @_ZNKSt6vectorIdSaIdEEixEm(ptr noundef nonnull align 8 dereferenceable(24) %53, i64 noundef %55) #5
  %57 = load double, ptr %56, align 8, !tbaa !11
  %58 = call double @llvm.fmuladd.f64(double %52, double %57, double %51)
  store double %58, ptr %15, align 8, !tbaa !11
  call void @llvm.lifetime.start.p0(i64 8, ptr %16) #5
  %59 = load double, ptr %15, align 8, !tbaa !11
  %60 = call double @llvm.fabs.f64(double %59)
  %61 = fcmp olt double %60, 0x3D06849B86A12B9B
  br i1 %61, label %62, label %63

62:                                               ; preds = %40
  br label %65

63:                                               ; preds = %40
  %64 = load double, ptr %15, align 8, !tbaa !11
  br label %65

65:                                               ; preds = %63, %62
  %66 = phi double [ 1.000000e-50, %62 ], [ %64, %63 ]
  store double %66, ptr %16, align 8, !tbaa !11
  %67 = load i32, ptr %11, align 4, !tbaa !9
  %68 = srem i32 %67, 5
  %69 = icmp eq i32 %68, 0
  br i1 %69, label %70, label %72

70:                                               ; preds = %65
  %71 = call i32 (ptr, ...) @printf(ptr noundef @.str.118)
  br label %72

72:                                               ; preds = %70, %65
  %73 = load i32, ptr %13, align 4, !tbaa !9
  %74 = load double, ptr %16, align 8, !tbaa !11
  %75 = call i32 (ptr, ...) @printf(ptr noundef @.str.119, i32 noundef %73, double noundef %74)
  %76 = load i32, ptr %11, align 4, !tbaa !9
  %77 = add nsw i32 %76, 1
  store i32 %77, ptr %11, align 4, !tbaa !9
  call void @llvm.lifetime.end.p0(i64 8, ptr %16) #5
  call void @llvm.lifetime.end.p0(i64 8, ptr %15) #5
  call void @llvm.lifetime.end.p0(i64 8, ptr %14) #5
  call void @llvm.lifetime.end.p0(i64 4, ptr %13) #5
  br label %78

78:                                               ; preds = %72
  %79 = load i32, ptr %12, align 4, !tbaa !9
  %80 = add nsw i32 %79, 1
  store i32 %80, ptr %12, align 4, !tbaa !9
  br label %35, !llvm.loop !13

81:                                               ; preds = %39
  %82 = call i32 (ptr, ...) @printf(ptr noundef @.str.118)
  call void @llvm.lifetime.end.p0(i64 4, ptr %11) #5
  br label %83

83:                                               ; preds = %81, %25
  ret void
}

; Function Attrs: mustprogress nounwind uwtable
declare dso_local noundef nonnull align 8 dereferenceable(16) ptr @_ZNKSt6vectorI12HighsCDoubleSaIS0_EEixEm(ptr noundef nonnull align 8 dereferenceable(24), i64 noundef) #1 align 2

attributes #0 = { nocallback nofree nosync 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 speculatable willreturn memory(none) }
attributes #3 = { "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 = { 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 #5 = { 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 = 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"

@.str.117 = external hidden unnamed_addr constant [23 x i8], align 1
@.str.118 = external hidden unnamed_addr constant [2 x i8], align 1
@.str.119 = external hidden unnamed_addr constant [14 x i8], align 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: 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

; Function Attrs: mustprogress nocallback nofree nosync nounwind speculatable willreturn memory(none)
declare double @llvm.fabs.f64(double) #1

; Function Attrs: mustprogress nocallback nofree nosync nounwind speculatable willreturn memory(none)
declare double @llvm.fmuladd.f64(double, double, double) #1

; Function Attrs: mustprogress nounwind uwtable
declare dso_local noundef double @_ZNK12HighsCDoublecvdEv(ptr noundef nonnull align 8 dereferenceable(16)) local_unnamed_addr #0 align 2

; Function Attrs: nofree nounwind
declare noundef i32 @printf(ptr nocapture noundef readonly, ...) local_unnamed_addr #2

; Function Attrs: mustprogress nounwind uwtable
define dso_local void @_ZNK17HighsSparseMatrix19debugReportRowPriceEidiRKSt6vectorI12HighsCDoubleSaIS1_EE(ptr noundef nonnull align 8 dereferenceable(112) %0, i32 noundef %1, double noundef %2, i32 noundef %3, ptr noundef nonnull align 8 dereferenceable(24) %4) local_unnamed_addr #0 align 2 {
  %6 = getelementptr inbounds i8, ptr %0, i64 16
  %7 = sext i32 %1 to i64
  %8 = tail call noundef nonnull align 4 dereferenceable(4) ptr @_ZNKSt6vectorIiSaIiEEixEm(ptr noundef nonnull align 8 dereferenceable(24) %6, i64 noundef %7) #3
  %9 = load i32, ptr %8, align 4, !tbaa !5
  %.not = icmp slt i32 %9, %3
  br i1 %.not, label %10, label %39

10:                                               ; preds = %5
  %11 = tail call i32 (ptr, ...) @printf(ptr noundef nonnull dereferenceable(1) @.str.117, i32 noundef %1, double noundef %2)
  %12 = tail call noundef nonnull align 4 dereferenceable(4) ptr @_ZNKSt6vectorIiSaIiEEixEm(ptr noundef nonnull align 8 dereferenceable(24) %6, i64 noundef %7) #3
  %13 = load i32, ptr %12, align 4, !tbaa !5
  %14 = icmp slt i32 %13, %3
  br i1 %14, label %.lr.ph, label %._crit_edge

.lr.ph:                                           ; preds = %10
  %15 = getelementptr inbounds i8, ptr %0, i64 64
  %16 = getelementptr inbounds i8, ptr %0, i64 88
  %17 = sext i32 %13 to i64
  %18 = sub i32 %3, %13
  br label %20

._crit_edge:                                      ; preds = %36, %10
  %19 = tail call i32 (ptr, ...) @printf(ptr noundef nonnull dereferenceable(1) @.str.118)
  br label %39

20:                                               ; preds = %.lr.ph, %36
  %indvars.iv = phi i64 [ %17, %.lr.ph ], [ %indvars.iv.next, %36 ]
  %.023 = phi i32 [ 0, %.lr.ph ], [ %38, %36 ]
  %21 = tail call noundef nonnull align 4 dereferenceable(4) ptr @_ZNKSt6vectorIiSaIiEEixEm(ptr noundef nonnull align 8 dereferenceable(24) %15, i64 noundef %indvars.iv) #3
  %22 = load i32, ptr %21, align 4, !tbaa !5
  %23 = sext i32 %22 to i64
  %24 = tail call noundef nonnull align 8 dereferenceable(16) ptr @_ZNKSt6vectorI12HighsCDoubleSaIS0_EEixEm(ptr noundef nonnull align 8 dereferenceable(24) %4, i64 noundef %23) #3
  %25 = tail call noundef double @_ZNK12HighsCDoublecvdEv(ptr noundef nonnull align 8 dereferenceable(16) %24)
  %26 = tail call noundef nonnull align 8 dereferenceable(8) ptr @_ZNKSt6vectorIdSaIdEEixEm(ptr noundef nonnull align 8 dereferenceable(24) %16, i64 noundef %indvars.iv) #3
  %27 = load double, ptr %26, align 8, !tbaa !9
  %28 = tail call double @llvm.fmuladd.f64(double %2, double %27, double %25)
  %29 = tail call double @llvm.fabs.f64(double %28)
  %30 = fcmp olt double %29, 0x3D06849B86A12B9B
  %31 = select i1 %30, double 1.000000e-50, double %28
  %32 = urem i32 %.023, 5
  %33 = icmp eq i32 %32, 0
  br i1 %33, label %34, label %36

34:                                               ; preds = %20
  %35 = tail call i32 (ptr, ...) @printf(ptr noundef nonnull dereferenceable(1) @.str.118)
  br label %36

36:                                               ; preds = %34, %20
  %37 = tail call i32 (ptr, ...) @printf(ptr noundef nonnull dereferenceable(1) @.str.119, i32 noundef %22, double noundef %31)
  %38 = add nuw i32 %.023, 1
  %indvars.iv.next = add nsw i64 %indvars.iv, 1
  %exitcond.not = icmp eq i32 %38, %18
  br i1 %exitcond.not, label %._crit_edge, label %20, !llvm.loop !11

39:                                               ; preds = %5, %._crit_edge
  ret void
}

; Function Attrs: mustprogress nounwind uwtable
declare dso_local noundef nonnull align 8 dereferenceable(16) ptr @_ZNKSt6vectorI12HighsCDoubleSaIS0_EEixEm(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 = { mustprogress nocallback nofree nosync nounwind speculatable willreturn memory(none) }
attributes #2 = { nofree 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 #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 = !{!"int", !7, i64 0}
!7 = !{!"omnipotent char", !8, i64 0}
!8 = !{!"Simple C++ TBAA"}
!9 = !{!10, !10, i64 0}
!10 = !{!"double", !7, i64 0}
!11 = distinct !{!11, !12}
!12 = !{!"llvm.loop.mustprogress"}


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