; LLVM IR from smv1999/CompetitiveProgrammingQuestionBank :: Arrays/triplet_sum.ll (Z14findTripletSumPiii)

; 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.std::basic_ostream" = type { ptr, %"class.std::basic_ios" }
%"class.std::basic_ios" = type { %"class.std::ios_base", ptr, i8, i8, ptr, ptr, ptr, ptr }
%"class.std::ios_base" = type { ptr, i64, i64, i32, i32, i32, ptr, %"struct.std::ios_base::_Words", [8 x %"struct.std::ios_base::_Words"], i32, ptr, %"class.std::locale" }
%"struct.std::ios_base::_Words" = type { ptr, i64 }
%"class.std::locale" = type { ptr }

@_ZSt4cout = external global %"class.std::basic_ostream", align 8
@.str = external hidden unnamed_addr constant [27 x i8], align 1
@.str.1 = external hidden unnamed_addr constant [19 x i8], align 1

; Function Attrs: mustprogress uwtable
define dso_local void @_Z14findTripletSumPiii(ptr noundef %0, i32 noundef %1, i32 noundef %2) #0 {
  %4 = alloca ptr, align 8
  %5 = alloca i32, align 4
  %6 = alloca i32, align 4
  %7 = alloca i32, align 4
  %8 = alloca i32, align 4
  %9 = alloca i32, align 4
  %10 = alloca i32, align 4
  store ptr %0, ptr %4, align 8, !tbaa !5
  store i32 %1, ptr %5, align 4, !tbaa !9
  store i32 %2, ptr %6, align 4, !tbaa !9
  %11 = load ptr, ptr %4, align 8, !tbaa !5
  %12 = load ptr, ptr %4, align 8, !tbaa !5
  %13 = load i32, ptr %5, align 4, !tbaa !9
  %14 = sext i32 %13 to i64
  %15 = getelementptr inbounds i32, ptr %12, i64 %14
  call void @_ZSt4sortIPiEvT_S1_(ptr noundef %11, ptr noundef %15)
  call void @llvm.lifetime.start.p0(i64 4, ptr %7) #3
  call void @llvm.lifetime.start.p0(i64 4, ptr %8) #3
  call void @llvm.lifetime.start.p0(i64 4, ptr %9) #3
  call void @llvm.lifetime.start.p0(i64 4, ptr %10) #3
  store i32 0, ptr %10, align 4, !tbaa !9
  store i32 0, ptr %7, align 4, !tbaa !9
  br label %16

16:                                               ; preds = %107, %3
  %17 = load i32, ptr %7, align 4, !tbaa !9
  %18 = load i32, ptr %5, align 4, !tbaa !9
  %19 = sub nsw i32 %18, 3
  %20 = icmp sle i32 %17, %19
  br i1 %20, label %21, label %110

21:                                               ; preds = %16
  %22 = load i32, ptr %7, align 4, !tbaa !9
  %23 = add nsw i32 %22, 1
  store i32 %23, ptr %8, align 4, !tbaa !9
  %24 = load i32, ptr %5, align 4, !tbaa !9
  %25 = sub nsw i32 %24, 1
  store i32 %25, ptr %9, align 4, !tbaa !9
  br label %26

26:                                               ; preds = %105, %21
  %27 = load i32, ptr %8, align 4, !tbaa !9
  %28 = load i32, ptr %9, align 4, !tbaa !9
  %29 = icmp slt i32 %27, %28
  br i1 %29, label %30, label %106

30:                                               ; preds = %26
  %31 = load ptr, ptr %4, align 8, !tbaa !5
  %32 = load i32, ptr %7, align 4, !tbaa !9
  %33 = sext i32 %32 to i64
  %34 = getelementptr inbounds i32, ptr %31, i64 %33
  %35 = load i32, ptr %34, align 4, !tbaa !9
  %36 = load ptr, ptr %4, align 8, !tbaa !5
  %37 = load i32, ptr %8, align 4, !tbaa !9
  %38 = sext i32 %37 to i64
  %39 = getelementptr inbounds i32, ptr %36, i64 %38
  %40 = load i32, ptr %39, align 4, !tbaa !9
  %41 = add nsw i32 %35, %40
  %42 = load ptr, ptr %4, align 8, !tbaa !5
  %43 = load i32, ptr %9, align 4, !tbaa !9
  %44 = sext i32 %43 to i64
  %45 = getelementptr inbounds i32, ptr %42, i64 %44
  %46 = load i32, ptr %45, align 4, !tbaa !9
  %47 = add nsw i32 %41, %46
  %48 = load i32, ptr %6, align 4, !tbaa !9
  %49 = icmp slt i32 %47, %48
  br i1 %49, label %50, label %53

50:                                               ; preds = %30
  %51 = load i32, ptr %8, align 4, !tbaa !9
  %52 = add nsw i32 %51, 1
  store i32 %52, ptr %8, align 4, !tbaa !9
  br label %105

53:                                               ; preds = %30
  %54 = load ptr, ptr %4, align 8, !tbaa !5
  %55 = load i32, ptr %7, align 4, !tbaa !9
  %56 = sext i32 %55 to i64
  %57 = getelementptr inbounds i32, ptr %54, i64 %56
  %58 = load i32, ptr %57, align 4, !tbaa !9
  %59 = load ptr, ptr %4, align 8, !tbaa !5
  %60 = load i32, ptr %8, align 4, !tbaa !9
  %61 = sext i32 %60 to i64
  %62 = getelementptr inbounds i32, ptr %59, i64 %61
  %63 = load i32, ptr %62, align 4, !tbaa !9
  %64 = add nsw i32 %58, %63
  %65 = load ptr, ptr %4, align 8, !tbaa !5
  %66 = load i32, ptr %9, align 4, !tbaa !9
  %67 = sext i32 %66 to i64
  %68 = getelementptr inbounds i32, ptr %65, i64 %67
  %69 = load i32, ptr %68, align 4, !tbaa !9
  %70 = add nsw i32 %64, %69
  %71 = load i32, ptr %6, align 4, !tbaa !9
  %72 = icmp sgt i32 %70, %71
  br i1 %72, label %73, label %76

73:                                               ; preds = %53
  %74 = load i32, ptr %9, align 4, !tbaa !9
  %75 = add nsw i32 %74, -1
  store i32 %75, ptr %9, align 4, !tbaa !9
  br label %104

76:                                               ; preds = %53
  %77 = load ptr, ptr %4, align 8, !tbaa !5
  %78 = load i32, ptr %7, align 4, !tbaa !9
  %79 = sext i32 %78 to i64
  %80 = getelementptr inbounds i32, ptr %77, i64 %79
  %81 = load i32, ptr %80, align 4, !tbaa !9
  %82 = load ptr, ptr %4, align 8, !tbaa !5
  %83 = load i32, ptr %8, align 4, !tbaa !9
  %84 = sext i32 %83 to i64
  %85 = getelementptr inbounds i32, ptr %82, i64 %84
  %86 = load i32, ptr %85, align 4, !tbaa !9
  %87 = add nsw i32 %81, %86
  %88 = load ptr, ptr %4, align 8, !tbaa !5
  %89 = load i32, ptr %9, align 4, !tbaa !9
  %90 = sext i32 %89 to i64
  %91 = getelementptr inbounds i32, ptr %88, i64 %90
  %92 = load i32, ptr %91, align 4, !tbaa !9
  %93 = add nsw i32 %87, %92
  %94 = load i32, ptr %6, align 4, !tbaa !9
  %95 = icmp eq i32 %93, %94
  br i1 %95, label %96, label %103

96:                                               ; preds = %76
  %97 = load i32, ptr %8, align 4, !tbaa !9
  %98 = add nsw i32 %97, 1
  store i32 %98, ptr %8, align 4, !tbaa !9
  %99 = load i32, ptr %9, align 4, !tbaa !9
  %100 = add nsw i32 %99, -1
  store i32 %100, ptr %9, align 4, !tbaa !9
  %101 = load i32, ptr %10, align 4, !tbaa !9
  %102 = add nsw i32 %101, 1
  store i32 %102, ptr %10, align 4, !tbaa !9
  br label %103

103:                                              ; preds = %96, %76
  br label %104

104:                                              ; preds = %103, %73
  br label %105

105:                                              ; preds = %104, %50
  br label %26, !llvm.loop !11

106:                                              ; preds = %26
  br label %107

107:                                              ; preds = %106
  %108 = load i32, ptr %7, align 4, !tbaa !9
  %109 = add nsw i32 %108, 1
  store i32 %109, ptr %7, align 4, !tbaa !9
  br label %16, !llvm.loop !13

110:                                              ; preds = %16
  %111 = load i32, ptr %10, align 4, !tbaa !9
  %112 = icmp eq i32 %111, 0
  br i1 %112, label %113, label %116

113:                                              ; preds = %110
  %114 = call noundef nonnull align 8 dereferenceable(8) ptr @_ZStlsISt11char_traitsIcEERSt13basic_ostreamIcT_ES5_PKc(ptr noundef nonnull align 8 dereferenceable(8) @_ZSt4cout, ptr noundef @.str)
  %115 = call noundef nonnull align 8 dereferenceable(8) ptr @_ZNSolsEPFRSoS_E(ptr noundef nonnull align 8 dereferenceable(8) %114, ptr noundef @_ZSt4endlIcSt11char_traitsIcEERSt13basic_ostreamIT_T0_ES6_)
  br label %119

116:                                              ; preds = %110
  %117 = call noundef nonnull align 8 dereferenceable(8) ptr @_ZStlsISt11char_traitsIcEERSt13basic_ostreamIcT_ES5_PKc(ptr noundef nonnull align 8 dereferenceable(8) @_ZSt4cout, ptr noundef @.str.1)
  %118 = call noundef nonnull align 8 dereferenceable(8) ptr @_ZNSolsEPFRSoS_E(ptr noundef nonnull align 8 dereferenceable(8) %117, ptr noundef @_ZSt4endlIcSt11char_traitsIcEERSt13basic_ostreamIT_T0_ES6_)
  br label %119

119:                                              ; preds = %116, %113
  call void @llvm.lifetime.end.p0(i64 4, ptr %10) #3
  call void @llvm.lifetime.end.p0(i64 4, ptr %9) #3
  call void @llvm.lifetime.end.p0(i64 4, ptr %8) #3
  call void @llvm.lifetime.end.p0(i64 4, ptr %7) #3
  ret void
}

; Function Attrs: inlinehint mustprogress uwtable
declare dso_local void @_ZSt4sortIPiEvT_S1_(ptr noundef, ptr noundef) #1

; Function Attrs: nocallback nofree nosync nounwind willreturn memory(argmem: readwrite)
declare void @llvm.lifetime.start.p0(i64 immarg, ptr nocapture) #2

; Function Attrs: inlinehint mustprogress uwtable
declare noundef nonnull align 8 dereferenceable(8) ptr @_ZStlsISt11char_traitsIcEERSt13basic_ostreamIcT_ES5_PKc(ptr noundef nonnull align 8 dereferenceable(8), ptr noundef) #1

; Function Attrs: mustprogress uwtable
declare noundef nonnull align 8 dereferenceable(8) ptr @_ZNSolsEPFRSoS_E(ptr noundef nonnull align 8 dereferenceable(8), ptr noundef) #0 align 2

; Function Attrs: inlinehint mustprogress uwtable
declare noundef nonnull align 8 dereferenceable(8) ptr @_ZSt4endlIcSt11char_traitsIcEERSt13basic_ostreamIT_T0_ES6_(ptr noundef nonnull align 8 dereferenceable(8)) #1

; Function Attrs: nocallback nofree nosync nounwind willreturn memory(argmem: readwrite)
declare void @llvm.lifetime.end.p0(i64 immarg, ptr nocapture) #2

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 = { inlinehint 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 = { nocallback nofree nosync nounwind willreturn memory(argmem: readwrite) }
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, !10, i64 0}
!10 = !{!"int", !7, i64 0}
!11 = distinct !{!11, !12}
!12 = !{!"llvm.loop.mustprogress"}
!13 = distinct !{!13, !12}


; 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"

%"class.std::basic_ostream" = type { ptr, %"class.std::basic_ios" }
%"class.std::basic_ios" = type { %"class.std::ios_base", ptr, i8, i8, ptr, ptr, ptr, ptr }
%"class.std::ios_base" = type { ptr, i64, i64, i32, i32, i32, ptr, %"struct.std::ios_base::_Words", [8 x %"struct.std::ios_base::_Words"], i32, ptr, %"class.std::locale" }
%"struct.std::ios_base::_Words" = type { ptr, i64 }
%"class.std::locale" = type { ptr }

@_ZSt4cout = external global %"class.std::basic_ostream", align 8
@.str = external hidden unnamed_addr constant [27 x i8], align 1
@.str.1 = external hidden unnamed_addr constant [19 x i8], align 1

; Function Attrs: mustprogress uwtable
define dso_local void @_Z14findTripletSumPiii(ptr noundef %0, i32 noundef %1, i32 noundef %2) local_unnamed_addr #0 {
  %4 = sext i32 %1 to i64
  %5 = getelementptr inbounds i32, ptr %0, i64 %4
  tail call void @_ZSt4sortIPiEvT_S1_(ptr noundef %0, ptr noundef %5)
  %.not46 = icmp slt i32 %1, 3
  br i1 %.not46, label %._crit_edge.thread, label %.lr.ph49

.lr.ph49:                                         ; preds = %3
  %6 = add nsw i32 %1, -1
  %7 = add nsw i32 %1, -2
  %wide.trip.count = zext nneg i32 %7 to i64
  br label %.lr.ph

.loopexit:                                        ; preds = %33
  %exitcond.not = icmp eq i64 %indvars.iv.next, %wide.trip.count
  br i1 %exitcond.not, label %._crit_edge, label %.lr.ph, !llvm.loop !5

.lr.ph:                                           ; preds = %.loopexit, %.lr.ph49
  %indvars.iv = phi i64 [ 0, %.lr.ph49 ], [ %indvars.iv.next, %.loopexit ]
  %.048 = phi i32 [ 0, %.lr.ph49 ], [ %.2, %.loopexit ]
  %indvars.iv.next = add nuw nsw i64 %indvars.iv, 1
  %8 = getelementptr inbounds i32, ptr %0, i64 %indvars.iv
  %9 = load i32, ptr %8, align 4, !tbaa !7
  %10 = trunc nuw nsw i64 %indvars.iv.next to i32
  br label %11

11:                                               ; preds = %.lr.ph, %33
  %.145 = phi i32 [ %.048, %.lr.ph ], [ %.2, %33 ]
  %.03644 = phi i32 [ %6, %.lr.ph ], [ %.137, %33 ]
  %.03843 = phi i32 [ %10, %.lr.ph ], [ %.139, %33 ]
  %12 = sext i32 %.03843 to i64
  %13 = getelementptr inbounds i32, ptr %0, i64 %12
  %14 = load i32, ptr %13, align 4, !tbaa !7
  %15 = add nsw i32 %14, %9
  %16 = sext i32 %.03644 to i64
  %17 = getelementptr inbounds i32, ptr %0, i64 %16
  %18 = load i32, ptr %17, align 4, !tbaa !7
  %19 = add nsw i32 %15, %18
  %20 = icmp slt i32 %19, %2
  br i1 %20, label %21, label %23

21:                                               ; preds = %11
  %22 = add nsw i32 %.03843, 1
  br label %33

23:                                               ; preds = %11
  %24 = icmp sgt i32 %19, %2
  br i1 %24, label %25, label %27

25:                                               ; preds = %23
  %26 = add nsw i32 %.03644, -1
  br label %33

27:                                               ; preds = %23
  %28 = icmp eq i32 %19, %2
  br i1 %28, label %29, label %33

29:                                               ; preds = %27
  %30 = add nsw i32 %.03843, 1
  %31 = add nsw i32 %.03644, -1
  %32 = add nsw i32 %.145, 1
  br label %33

33:                                               ; preds = %25, %29, %27, %21
  %.139 = phi i32 [ %22, %21 ], [ %.03843, %25 ], [ %30, %29 ], [ %.03843, %27 ]
  %.137 = phi i32 [ %.03644, %21 ], [ %26, %25 ], [ %31, %29 ], [ %.03644, %27 ]
  %.2 = phi i32 [ %.145, %21 ], [ %.145, %25 ], [ %32, %29 ], [ %.145, %27 ]
  %34 = icmp slt i32 %.139, %.137
  br i1 %34, label %11, label %.loopexit, !llvm.loop !11

._crit_edge:                                      ; preds = %.loopexit
  %35 = icmp eq i32 %.2, 0
  %spec.select = select i1 %35, ptr @.str, ptr @.str.1
  br label %._crit_edge.thread

._crit_edge.thread:                               ; preds = %._crit_edge, %3
  %.str.1.sink = phi ptr [ @.str, %3 ], [ %spec.select, %._crit_edge ]
  %36 = tail call noundef nonnull align 8 dereferenceable(8) ptr @_ZStlsISt11char_traitsIcEERSt13basic_ostreamIcT_ES5_PKc(ptr noundef nonnull align 8 dereferenceable(8) @_ZSt4cout, ptr noundef nonnull %.str.1.sink)
  %37 = tail call noundef nonnull align 8 dereferenceable(8) ptr @_ZNSolsEPFRSoS_E(ptr noundef nonnull align 8 dereferenceable(8) %36, ptr noundef nonnull @_ZSt4endlIcSt11char_traitsIcEERSt13basic_ostreamIT_T0_ES6_)
  ret void
}

; Function Attrs: inlinehint mustprogress uwtable
declare dso_local void @_ZSt4sortIPiEvT_S1_(ptr noundef, ptr noundef) local_unnamed_addr #1

; Function Attrs: inlinehint mustprogress uwtable
declare noundef nonnull align 8 dereferenceable(8) ptr @_ZStlsISt11char_traitsIcEERSt13basic_ostreamIcT_ES5_PKc(ptr noundef nonnull align 8 dereferenceable(8), ptr noundef) local_unnamed_addr #1

; Function Attrs: mustprogress uwtable
declare noundef nonnull align 8 dereferenceable(8) ptr @_ZNSolsEPFRSoS_E(ptr noundef nonnull align 8 dereferenceable(8), ptr noundef) local_unnamed_addr #0 align 2

; Function Attrs: inlinehint mustprogress uwtable
declare noundef nonnull align 8 dereferenceable(8) ptr @_ZSt4endlIcSt11char_traitsIcEERSt13basic_ostreamIT_T0_ES6_(ptr noundef nonnull align 8 dereferenceable(8)) #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 = { inlinehint 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)"}
!5 = distinct !{!5, !6}
!6 = !{!"llvm.loop.mustprogress"}
!7 = !{!8, !8, i64 0}
!8 = !{!"int", !9, i64 0}
!9 = !{!"omnipotent char", !10, i64 0}
!10 = !{!"Simple C++ TBAA"}
!11 = distinct !{!11, !6}


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