; LLVM IR from NVIDIA/DALI :: third_party/opencv/exif/exif.ll (ZNK4dali2cv10ExifReader8getRefBWEm)

; 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::vector" = type { %"struct.std::_Vector_base" }
%"struct.std::_Vector_base" = type { %"struct.std::_Vector_base<std::pair<unsigned int, unsigned int>, std::allocator<std::pair<unsigned int, unsigned int>>>::_Vector_impl" }
%"struct.std::_Vector_base<std::pair<unsigned int, unsigned int>, std::allocator<std::pair<unsigned int, unsigned int>>>::_Vector_impl" = type { %"struct.std::_Vector_base<std::pair<unsigned int, unsigned int>, std::allocator<std::pair<unsigned int, unsigned int>>>::_Vector_impl_data" }
%"struct.std::_Vector_base<std::pair<unsigned int, unsigned int>, std::allocator<std::pair<unsigned int, unsigned int>>>::_Vector_impl_data" = type { ptr, ptr, ptr }
%"struct.std::pair.15" = type { i32, i32 }

; Function Attrs: mustprogress nounwind uwtable
declare dso_local void @_ZNSt6vectorISt4pairIjjESaIS1_EEC2Ev(ptr noundef nonnull align 8 dereferenceable(24)) unnamed_addr #0 align 2

; Function Attrs: nocallback nofree nosync nounwind willreturn memory(argmem: readwrite)
declare void @llvm.lifetime.start.p0(i64 immarg, ptr nocapture) #1

declare i32 @__gxx_personality_v0(...)

; Function Attrs: nocallback nofree nosync nounwind willreturn memory(argmem: readwrite)
declare void @llvm.lifetime.end.p0(i64 immarg, ptr nocapture) #1

; Function Attrs: mustprogress uwtable
declare dso_local noundef i32 @_ZNK4dali2cv10ExifReader6getU32Em(ptr noundef nonnull align 8 dereferenceable(76), i64 noundef) #2 align 2

; Function Attrs: mustprogress nounwind uwtable
declare dso_local void @_ZNSt6vectorISt4pairIjjESaIS1_EED2Ev(ptr noundef nonnull align 8 dereferenceable(24)) unnamed_addr #0 align 2

; Function Attrs: mustprogress uwtable
define dso_local void @_ZNK4dali2cv10ExifReader8getRefBWEm(ptr dead_on_unwind noalias writable sret(%"class.std::vector") align 8 %0, ptr noundef nonnull align 8 dereferenceable(76) %1, i64 noundef %2) #2 align 2 personality ptr @__gxx_personality_v0 {
  %4 = alloca ptr, align 8
  %5 = alloca ptr, align 8
  %6 = alloca i64, align 8
  %7 = alloca i64, align 8
  %8 = alloca i1, align 1
  %9 = alloca i32, align 4
  %10 = alloca ptr, align 8
  %11 = alloca i32, align 4
  %12 = alloca i64, align 8
  %13 = alloca %"struct.std::pair.15", align 4
  store ptr %0, ptr %4, align 8
  store ptr %1, ptr %5, align 8, !tbaa !5
  store i64 %2, ptr %6, align 8, !tbaa !9
  %14 = load ptr, ptr %5, align 8
  call void @llvm.lifetime.start.p0(i64 8, ptr %7) #3
  store i64 8, ptr %7, align 8, !tbaa !9
  store i1 false, ptr %8, align 1
  call void @_ZNSt6vectorISt4pairIjjESaIS1_EEC2Ev(ptr noundef nonnull align 8 dereferenceable(24) %0) #3
  call void @llvm.lifetime.start.p0(i64 4, ptr %9) #3
  %15 = load i64, ptr %6, align 8, !tbaa !9
  %16 = add i64 %15, 8
  %17 = invoke noundef i32 @_ZNK4dali2cv10ExifReader6getU32Em(ptr noundef nonnull align 8 dereferenceable(76) %14, i64 noundef %16)
          to label %18 unwind label %23

18:                                               ; preds = %3
  store i32 %17, ptr %9, align 4, !tbaa !11
  call void @llvm.lifetime.start.p0(i64 8, ptr %12) #3
  store i64 0, ptr %12, align 8, !tbaa !9
  br label %19

19:                                               ; preds = %37, %18
  %20 = load i64, ptr %12, align 8, !tbaa !9
  %21 = icmp ult i64 %20, 6
  br i1 %21, label %27, label %22

22:                                               ; preds = %19
  call void @llvm.lifetime.end.p0(i64 8, ptr %12) #3
  br label %44

23:                                               ; preds = %3
  %24 = landingpad { ptr, i32 }
          cleanup
  %25 = extractvalue { ptr, i32 } %24, 0
  store ptr %25, ptr %10, align 8
  %26 = extractvalue { ptr, i32 } %24, 1
  store i32 %26, ptr %11, align 4
  br label %46

27:                                               ; preds = %19
  call void @llvm.lifetime.start.p0(i64 8, ptr %13) #3
  %28 = load i32, ptr %9, align 4, !tbaa !11
  %29 = zext i32 %28 to i64
  %30 = invoke i64 @_ZNK4dali2cv10ExifReader12getURationalEm(ptr noundef nonnull align 8 dereferenceable(76) %14, i64 noundef %29)
          to label %31 unwind label %40

31:                                               ; preds = %27
  store i64 %30, ptr %13, align 4
  invoke void @_ZNSt6vectorISt4pairIjjESaIS1_EE9push_backEOS1_(ptr noundef nonnull align 8 dereferenceable(24) %0, ptr noundef nonnull align 4 dereferenceable(8) %13)
          to label %32 unwind label %40

32:                                               ; preds = %31
  call void @llvm.lifetime.end.p0(i64 8, ptr %13) #3
  %33 = load i32, ptr %9, align 4, !tbaa !11
  %34 = zext i32 %33 to i64
  %35 = add i64 %34, 8
  %36 = trunc i64 %35 to i32
  store i32 %36, ptr %9, align 4, !tbaa !11
  br label %37

37:                                               ; preds = %32
  %38 = load i64, ptr %12, align 8, !tbaa !9
  %39 = add i64 %38, 1
  store i64 %39, ptr %12, align 8, !tbaa !9
  br label %19, !llvm.loop !13

40:                                               ; preds = %31, %27
  %41 = landingpad { ptr, i32 }
          cleanup
  %42 = extractvalue { ptr, i32 } %41, 0
  store ptr %42, ptr %10, align 8
  %43 = extractvalue { ptr, i32 } %41, 1
  store i32 %43, ptr %11, align 4
  call void @llvm.lifetime.end.p0(i64 8, ptr %13) #3
  call void @llvm.lifetime.end.p0(i64 8, ptr %12) #3
  br label %46

44:                                               ; preds = %22
  store i1 true, ptr %8, align 1
  call void @llvm.lifetime.end.p0(i64 4, ptr %9) #3
  %45 = load i1, ptr %8, align 1
  br i1 %45, label %48, label %47

46:                                               ; preds = %40, %23
  call void @llvm.lifetime.end.p0(i64 4, ptr %9) #3
  call void @_ZNSt6vectorISt4pairIjjESaIS1_EED2Ev(ptr noundef nonnull align 8 dereferenceable(24) %0) #3
  call void @llvm.lifetime.end.p0(i64 8, ptr %7) #3
  br label %49

47:                                               ; preds = %44
  call void @_ZNSt6vectorISt4pairIjjESaIS1_EED2Ev(ptr noundef nonnull align 8 dereferenceable(24) %0) #3
  br label %48

48:                                               ; preds = %47, %44
  call void @llvm.lifetime.end.p0(i64 8, ptr %7) #3
  ret void

49:                                               ; preds = %46
  %50 = load ptr, ptr %10, align 8
  %51 = load i32, ptr %11, align 4
  %52 = insertvalue { ptr, i32 } poison, ptr %50, 0
  %53 = insertvalue { ptr, i32 } %52, i32 %51, 1
  resume { ptr, i32 } %53
}

; Function Attrs: mustprogress uwtable
declare dso_local i64 @_ZNK4dali2cv10ExifReader12getURationalEm(ptr noundef nonnull align 8 dereferenceable(76), i64 noundef) #2 align 2

; Function Attrs: mustprogress uwtable
declare dso_local void @_ZNSt6vectorISt4pairIjjESaIS1_EE9push_backEOS1_(ptr noundef nonnull align 8 dereferenceable(24), ptr noundef nonnull align 4 dereferenceable(8)) #2 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 = { nocallback nofree nosync nounwind willreturn memory(argmem: readwrite) }
attributes #2 = { 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 #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 = !{!"long", !7, i64 0}
!11 = !{!12, !12, i64 0}
!12 = !{!"int", !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"

%"class.std::vector" = type { %"struct.std::_Vector_base" }
%"struct.std::_Vector_base" = type { %"struct.std::_Vector_base<std::pair<unsigned int, unsigned int>, std::allocator<std::pair<unsigned int, unsigned int>>>::_Vector_impl" }
%"struct.std::_Vector_base<std::pair<unsigned int, unsigned int>, std::allocator<std::pair<unsigned int, unsigned int>>>::_Vector_impl" = type { %"struct.std::_Vector_base<std::pair<unsigned int, unsigned int>, std::allocator<std::pair<unsigned int, unsigned int>>>::_Vector_impl_data" }
%"struct.std::_Vector_base<std::pair<unsigned int, unsigned int>, std::allocator<std::pair<unsigned int, unsigned int>>>::_Vector_impl_data" = type { ptr, ptr, ptr }
%"struct.std::pair.15" = type { i32, i32 }

; Function Attrs: mustprogress nounwind uwtable
declare dso_local void @_ZNSt6vectorISt4pairIjjESaIS1_EEC2Ev(ptr noundef nonnull align 8 dereferenceable(24)) unnamed_addr #0 align 2

; Function Attrs: mustprogress nocallback nofree nosync nounwind willreturn memory(argmem: readwrite)
declare void @llvm.lifetime.start.p0(i64 immarg, ptr nocapture) #1

declare i32 @__gxx_personality_v0(...)

; Function Attrs: mustprogress nocallback nofree nosync nounwind willreturn memory(argmem: readwrite)
declare void @llvm.lifetime.end.p0(i64 immarg, ptr nocapture) #1

; Function Attrs: mustprogress uwtable
declare dso_local noundef i32 @_ZNK4dali2cv10ExifReader6getU32Em(ptr noundef nonnull align 8 dereferenceable(76), i64 noundef) local_unnamed_addr #2 align 2

; Function Attrs: mustprogress nounwind uwtable
declare dso_local void @_ZNSt6vectorISt4pairIjjESaIS1_EED2Ev(ptr noundef nonnull align 8 dereferenceable(24)) unnamed_addr #0 align 2

; Function Attrs: mustprogress uwtable
define dso_local void @_ZNK4dali2cv10ExifReader8getRefBWEm(ptr dead_on_unwind noalias nonnull writable sret(%"class.std::vector") align 8 %0, ptr noundef nonnull align 8 dereferenceable(76) %1, i64 noundef %2) local_unnamed_addr #2 align 2 personality ptr @__gxx_personality_v0 {
  %4 = alloca %"struct.std::pair.15", align 8
  tail call void @_ZNSt6vectorISt4pairIjjESaIS1_EEC2Ev(ptr noundef nonnull align 8 dereferenceable(24) %0) #3
  %5 = add i64 %2, 8
  %6 = invoke noundef i32 @_ZNK4dali2cv10ExifReader6getU32Em(ptr noundef nonnull align 8 dereferenceable(76) %1, i64 noundef %5)
          to label %.preheader.preheader unwind label %9

.preheader.preheader:                             ; preds = %3
  call void @llvm.lifetime.start.p0(i64 8, ptr nonnull %4) #3
  %7 = zext i32 %6 to i64
  %8 = invoke i64 @_ZNK4dali2cv10ExifReader12getURationalEm(ptr noundef nonnull align 8 dereferenceable(76) %1, i64 noundef %7)
          to label %11 unwind label %33

9:                                                ; preds = %3
  %10 = landingpad { ptr, i32 }
          cleanup
  br label %35

11:                                               ; preds = %.preheader.preheader
  store i64 %8, ptr %4, align 8
  invoke void @_ZNSt6vectorISt4pairIjjESaIS1_EE9push_backEOS1_(ptr noundef nonnull align 8 dereferenceable(24) %0, ptr noundef nonnull align 4 dereferenceable(8) %4)
          to label %.preheader.1 unwind label %33

.preheader.1:                                     ; preds = %11
  call void @llvm.lifetime.end.p0(i64 8, ptr nonnull %4) #3
  %12 = add i32 %6, 8
  call void @llvm.lifetime.start.p0(i64 8, ptr nonnull %4) #3
  %13 = zext i32 %12 to i64
  %14 = invoke i64 @_ZNK4dali2cv10ExifReader12getURationalEm(ptr noundef nonnull align 8 dereferenceable(76) %1, i64 noundef %13)
          to label %15 unwind label %33

15:                                               ; preds = %.preheader.1
  store i64 %14, ptr %4, align 8
  invoke void @_ZNSt6vectorISt4pairIjjESaIS1_EE9push_backEOS1_(ptr noundef nonnull align 8 dereferenceable(24) %0, ptr noundef nonnull align 4 dereferenceable(8) %4)
          to label %.preheader.2 unwind label %33

.preheader.2:                                     ; preds = %15
  call void @llvm.lifetime.end.p0(i64 8, ptr nonnull %4) #3
  %16 = add i32 %6, 16
  call void @llvm.lifetime.start.p0(i64 8, ptr nonnull %4) #3
  %17 = zext i32 %16 to i64
  %18 = invoke i64 @_ZNK4dali2cv10ExifReader12getURationalEm(ptr noundef nonnull align 8 dereferenceable(76) %1, i64 noundef %17)
          to label %19 unwind label %33

19:                                               ; preds = %.preheader.2
  store i64 %18, ptr %4, align 8
  invoke void @_ZNSt6vectorISt4pairIjjESaIS1_EE9push_backEOS1_(ptr noundef nonnull align 8 dereferenceable(24) %0, ptr noundef nonnull align 4 dereferenceable(8) %4)
          to label %.preheader.3 unwind label %33

.preheader.3:                                     ; preds = %19
  call void @llvm.lifetime.end.p0(i64 8, ptr nonnull %4) #3
  %20 = add i32 %6, 24
  call void @llvm.lifetime.start.p0(i64 8, ptr nonnull %4) #3
  %21 = zext i32 %20 to i64
  %22 = invoke i64 @_ZNK4dali2cv10ExifReader12getURationalEm(ptr noundef nonnull align 8 dereferenceable(76) %1, i64 noundef %21)
          to label %23 unwind label %33

23:                                               ; preds = %.preheader.3
  store i64 %22, ptr %4, align 8
  invoke void @_ZNSt6vectorISt4pairIjjESaIS1_EE9push_backEOS1_(ptr noundef nonnull align 8 dereferenceable(24) %0, ptr noundef nonnull align 4 dereferenceable(8) %4)
          to label %.preheader.4 unwind label %33

.preheader.4:                                     ; preds = %23
  call void @llvm.lifetime.end.p0(i64 8, ptr nonnull %4) #3
  %24 = add i32 %6, 32
  call void @llvm.lifetime.start.p0(i64 8, ptr nonnull %4) #3
  %25 = zext i32 %24 to i64
  %26 = invoke i64 @_ZNK4dali2cv10ExifReader12getURationalEm(ptr noundef nonnull align 8 dereferenceable(76) %1, i64 noundef %25)
          to label %27 unwind label %33

27:                                               ; preds = %.preheader.4
  store i64 %26, ptr %4, align 8
  invoke void @_ZNSt6vectorISt4pairIjjESaIS1_EE9push_backEOS1_(ptr noundef nonnull align 8 dereferenceable(24) %0, ptr noundef nonnull align 4 dereferenceable(8) %4)
          to label %.preheader.5 unwind label %33

.preheader.5:                                     ; preds = %27
  call void @llvm.lifetime.end.p0(i64 8, ptr nonnull %4) #3
  %28 = add i32 %6, 40
  call void @llvm.lifetime.start.p0(i64 8, ptr nonnull %4) #3
  %29 = zext i32 %28 to i64
  %30 = invoke i64 @_ZNK4dali2cv10ExifReader12getURationalEm(ptr noundef nonnull align 8 dereferenceable(76) %1, i64 noundef %29)
          to label %31 unwind label %33

31:                                               ; preds = %.preheader.5
  store i64 %30, ptr %4, align 8
  invoke void @_ZNSt6vectorISt4pairIjjESaIS1_EE9push_backEOS1_(ptr noundef nonnull align 8 dereferenceable(24) %0, ptr noundef nonnull align 4 dereferenceable(8) %4)
          to label %32 unwind label %33

32:                                               ; preds = %31
  call void @llvm.lifetime.end.p0(i64 8, ptr nonnull %4) #3
  ret void

33:                                               ; preds = %31, %.preheader.5, %27, %.preheader.4, %23, %.preheader.3, %19, %.preheader.2, %15, %.preheader.1, %11, %.preheader.preheader
  %34 = landingpad { ptr, i32 }
          cleanup
  call void @llvm.lifetime.end.p0(i64 8, ptr nonnull %4) #3
  br label %35

35:                                               ; preds = %33, %9
  %.pn = phi { ptr, i32 } [ %34, %33 ], [ %10, %9 ]
  call void @_ZNSt6vectorISt4pairIjjESaIS1_EED2Ev(ptr noundef nonnull align 8 dereferenceable(24) %0) #3
  resume { ptr, i32 } %.pn
}

; Function Attrs: mustprogress uwtable
declare dso_local i64 @_ZNK4dali2cv10ExifReader12getURationalEm(ptr noundef nonnull align 8 dereferenceable(76), i64 noundef) local_unnamed_addr #2 align 2

; Function Attrs: mustprogress uwtable
declare dso_local void @_ZNSt6vectorISt4pairIjjESaIS1_EE9push_backEOS1_(ptr noundef nonnull align 8 dereferenceable(24), ptr noundef nonnull align 4 dereferenceable(8)) local_unnamed_addr #2 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 willreturn memory(argmem: readwrite) }
attributes #2 = { 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 #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)"}


; Effective O3 passes: EarlyCSEPass,GVNPass,GlobalOptPass,IPSCCPPass,IndVarSimplifyPass,InferAlignmentPass,InferFunctionAttrsPass,InstCombinePass,LoopRotatePass,LoopSimplifyPass,PostOrderFunctionAttrsPass,SROAPass,SimplifyCFGPass,TailCallElimPass