; LLVM IR from ox-vgg/vise :: src/search_engine/relja_retrival/external/KMCode_relja/homography (homography)

; 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 }
%"class.std::vector" = type { %"struct.std::_Vector_base" }
%"struct.std::_Vector_base" = type { %"struct.std::_Vector_base<CornerDescriptor *, std::allocator<CornerDescriptor *>>::_Vector_impl" }
%"struct.std::_Vector_base<CornerDescriptor *, std::allocator<CornerDescriptor *>>::_Vector_impl" = type { %"struct.std::_Vector_base<CornerDescriptor *, std::allocator<CornerDescriptor *>>::_Vector_impl_data" }
%"struct.std::_Vector_base<CornerDescriptor *, std::allocator<CornerDescriptor *>>::_Vector_impl_data" = type { ptr, ptr, ptr }

@_ZSt4cout = external global %"class.std::basic_ostream", align 8
@.str.6 = external hidden unnamed_addr constant [11 x i8], align 1
@.str.7 = external hidden unnamed_addr constant [10 x i8], align 1
@.str.8 = external hidden unnamed_addr constant [19 x i8], align 1
@.str.9 = external hidden unnamed_addr constant [10 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

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) #0

; Function Attrs: mustprogress nounwind uwtable
declare dso_local noundef i64 @_ZNKSt6vectorIP16CornerDescriptorSaIS1_EE4sizeEv(ptr noundef nonnull align 8 dereferenceable(24)) #1 align 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) #2

; Function Attrs: mustprogress uwtable
declare noundef nonnull align 8 dereferenceable(8) ptr @_ZNSolsEPFRSoS_E(ptr noundef nonnull align 8 dereferenceable(8), ptr noundef) #3 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)) #2

; Function Attrs: mustprogress uwtable
declare noundef nonnull align 8 dereferenceable(8) ptr @_ZNSolsEf(ptr noundef nonnull align 8 dereferenceable(8), float noundef) #3 align 2

; Function Attrs: mustprogress uwtable
declare noundef nonnull align 8 dereferenceable(8) ptr @_ZNSolsEm(ptr noundef nonnull align 8 dereferenceable(8), i64 noundef) #3 align 2

; Function Attrs: mustprogress uwtable
declare dso_local void @_Z23matchPointsByHomographyRSt6vectorIP16CornerDescriptorSaIS1_EES4_S4_S4_P6Matrixf(ptr noundef nonnull align 8 dereferenceable(24), ptr noundef nonnull align 8 dereferenceable(24), ptr noundef nonnull align 8 dereferenceable(24), ptr noundef nonnull align 8 dereferenceable(24), ptr noundef, float noundef) #3

; Function Attrs: mustprogress uwtable
declare dso_local void @_Z17computeHomographySt6vectorIP16CornerDescriptorSaIS1_EES3_P6Matrix(ptr noundef, ptr noundef, ptr noundef) #3

; Function Attrs: mustprogress uwtable
define dso_local void @_Z21computeHomographyPrecRSt6vectorIP16CornerDescriptorSaIS1_EES4_P6Matrixf(ptr noundef nonnull align 8 dereferenceable(24) %0, ptr noundef nonnull align 8 dereferenceable(24) %1, ptr noundef %2, float noundef %3) #3 personality ptr @__gxx_personality_v0 {
  %5 = alloca ptr, align 8
  %6 = alloca ptr, align 8
  %7 = alloca ptr, align 8
  %8 = alloca float, align 4
  %9 = alloca %"class.std::vector", align 8
  %10 = alloca %"class.std::vector", align 8
  %11 = alloca %"class.std::vector", align 8
  %12 = alloca %"class.std::vector", align 8
  %13 = alloca i32, align 4
  %14 = alloca i32, align 4
  %15 = alloca ptr, align 8
  %16 = alloca i32, align 4
  %17 = alloca %"class.std::vector", align 8
  %18 = alloca %"class.std::vector", align 8
  store ptr %0, ptr %5, align 8, !tbaa !5
  store ptr %1, ptr %6, align 8, !tbaa !5
  store ptr %2, ptr %7, align 8, !tbaa !5
  store float %3, ptr %8, align 4, !tbaa !9
  call void @llvm.lifetime.start.p0(i64 24, ptr %9) #4
  call void @_ZNSt6vectorIP16CornerDescriptorSaIS1_EEC2Ev(ptr noundef nonnull align 8 dereferenceable(24) %9) #4
  call void @llvm.lifetime.start.p0(i64 24, ptr %10) #4
  call void @_ZNSt6vectorIP16CornerDescriptorSaIS1_EEC2Ev(ptr noundef nonnull align 8 dereferenceable(24) %10) #4
  call void @llvm.lifetime.start.p0(i64 24, ptr %11) #4
  call void @_ZNSt6vectorIP16CornerDescriptorSaIS1_EEC2Ev(ptr noundef nonnull align 8 dereferenceable(24) %11) #4
  call void @llvm.lifetime.start.p0(i64 24, ptr %12) #4
  call void @_ZNSt6vectorIP16CornerDescriptorSaIS1_EEC2Ev(ptr noundef nonnull align 8 dereferenceable(24) %12) #4
  call void @llvm.lifetime.start.p0(i64 4, ptr %13) #4
  store i32 0, ptr %13, align 4, !tbaa !11
  br label %19

19:                                               ; preds = %99, %4
  %20 = load i32, ptr %13, align 4, !tbaa !11
  %21 = icmp slt i32 %20, 15
  br i1 %21, label %23, label %22

22:                                               ; preds = %19
  store i32 2, ptr %14, align 4
  br label %102

23:                                               ; preds = %19
  %24 = load ptr, ptr %5, align 8, !tbaa !5
  %25 = load ptr, ptr %6, align 8, !tbaa !5
  %26 = load ptr, ptr %7, align 8, !tbaa !5
  %27 = load float, ptr %8, align 4, !tbaa !9
  invoke void @_Z23matchPointsByHomographyRSt6vectorIP16CornerDescriptorSaIS1_EES4_S4_S4_P6Matrixf(ptr noundef nonnull align 8 dereferenceable(24) %24, ptr noundef nonnull align 8 dereferenceable(24) %25, ptr noundef nonnull align 8 dereferenceable(24) %9, ptr noundef nonnull align 8 dereferenceable(24) %10, ptr noundef %26, float noundef %27)
          to label %28 unwind label %76

28:                                               ; preds = %23
  %29 = invoke noundef nonnull align 8 dereferenceable(8) ptr @_ZStlsISt11char_traitsIcEERSt13basic_ostreamIcT_ES5_PKc(ptr noundef nonnull align 8 dereferenceable(8) @_ZSt4cout, ptr noundef @.str.6)
          to label %30 unwind label %76

30:                                               ; preds = %28
  %31 = load float, ptr %8, align 4, !tbaa !9
  %32 = invoke noundef nonnull align 8 dereferenceable(8) ptr @_ZNSolsEf(ptr noundef nonnull align 8 dereferenceable(8) %29, float noundef %31)
          to label %33 unwind label %76

33:                                               ; preds = %30
  %34 = invoke noundef nonnull align 8 dereferenceable(8) ptr @_ZNSolsEPFRSoS_E(ptr noundef nonnull align 8 dereferenceable(8) %32, ptr noundef @_ZSt4endlIcSt11char_traitsIcEERSt13basic_ostreamIT_T0_ES6_)
          to label %35 unwind label %76

35:                                               ; preds = %33
  %36 = invoke noundef nonnull align 8 dereferenceable(8) ptr @_ZStlsISt11char_traitsIcEERSt13basic_ostreamIcT_ES5_PKc(ptr noundef nonnull align 8 dereferenceable(8) @_ZSt4cout, ptr noundef @.str.7)
          to label %37 unwind label %76

37:                                               ; preds = %35
  %38 = load ptr, ptr %5, align 8, !tbaa !5
  %39 = call noundef i64 @_ZNKSt6vectorIP16CornerDescriptorSaIS1_EE4sizeEv(ptr noundef nonnull align 8 dereferenceable(24) %38) #4
  %40 = invoke noundef nonnull align 8 dereferenceable(8) ptr @_ZNSolsEm(ptr noundef nonnull align 8 dereferenceable(8) %36, i64 noundef %39)
          to label %41 unwind label %76

41:                                               ; preds = %37
  %42 = invoke noundef nonnull align 8 dereferenceable(8) ptr @_ZStlsISt11char_traitsIcEERSt13basic_ostreamIcT_ES5_PKc(ptr noundef nonnull align 8 dereferenceable(8) %40, ptr noundef @.str.8)
          to label %43 unwind label %76

43:                                               ; preds = %41
  %44 = call noundef i64 @_ZNKSt6vectorIP16CornerDescriptorSaIS1_EE4sizeEv(ptr noundef nonnull align 8 dereferenceable(24) %9) #4
  %45 = invoke noundef nonnull align 8 dereferenceable(8) ptr @_ZNSolsEm(ptr noundef nonnull align 8 dereferenceable(8) %42, i64 noundef %44)
          to label %46 unwind label %76

46:                                               ; preds = %43
  %47 = invoke noundef nonnull align 8 dereferenceable(8) ptr @_ZNSolsEPFRSoS_E(ptr noundef nonnull align 8 dereferenceable(8) %45, ptr noundef @_ZSt4endlIcSt11char_traitsIcEERSt13basic_ostreamIT_T0_ES6_)
          to label %48 unwind label %76

48:                                               ; preds = %46
  %49 = invoke noundef nonnull align 8 dereferenceable(8) ptr @_ZStlsISt11char_traitsIcEERSt13basic_ostreamIcT_ES5_PKc(ptr noundef nonnull align 8 dereferenceable(8) @_ZSt4cout, ptr noundef @.str.9)
          to label %50 unwind label %76

50:                                               ; preds = %48
  %51 = load ptr, ptr %6, align 8, !tbaa !5
  %52 = call noundef i64 @_ZNKSt6vectorIP16CornerDescriptorSaIS1_EE4sizeEv(ptr noundef nonnull align 8 dereferenceable(24) %51) #4
  %53 = invoke noundef nonnull align 8 dereferenceable(8) ptr @_ZNSolsEm(ptr noundef nonnull align 8 dereferenceable(8) %49, i64 noundef %52)
          to label %54 unwind label %76

54:                                               ; preds = %50
  %55 = invoke noundef nonnull align 8 dereferenceable(8) ptr @_ZStlsISt11char_traitsIcEERSt13basic_ostreamIcT_ES5_PKc(ptr noundef nonnull align 8 dereferenceable(8) %53, ptr noundef @.str.8)
          to label %56 unwind label %76

56:                                               ; preds = %54
  %57 = call noundef i64 @_ZNKSt6vectorIP16CornerDescriptorSaIS1_EE4sizeEv(ptr noundef nonnull align 8 dereferenceable(24) %10) #4
  %58 = invoke noundef nonnull align 8 dereferenceable(8) ptr @_ZNSolsEm(ptr noundef nonnull align 8 dereferenceable(8) %55, i64 noundef %57)
          to label %59 unwind label %76

59:                                               ; preds = %56
  %60 = invoke noundef nonnull align 8 dereferenceable(8) ptr @_ZNSolsEPFRSoS_E(ptr noundef nonnull align 8 dereferenceable(8) %58, ptr noundef @_ZSt4endlIcSt11char_traitsIcEERSt13basic_ostreamIT_T0_ES6_)
          to label %61 unwind label %76

61:                                               ; preds = %59
  %62 = invoke noundef nonnull align 8 dereferenceable(8) ptr @_ZNSolsEPFRSoS_E(ptr noundef nonnull align 8 dereferenceable(8) %60, ptr noundef @_ZSt4endlIcSt11char_traitsIcEERSt13basic_ostreamIT_T0_ES6_)
          to label %63 unwind label %76

63:                                               ; preds = %61
  %64 = call noundef i64 @_ZNKSt6vectorIP16CornerDescriptorSaIS1_EE4sizeEv(ptr noundef nonnull align 8 dereferenceable(24) %9) #4
  %65 = icmp ugt i64 %64, 10
  br i1 %65, label %66, label %90

66:                                               ; preds = %63
  invoke void @_ZNSt6vectorIP16CornerDescriptorSaIS1_EEC2ERKS3_(ptr noundef nonnull align 8 dereferenceable(24) %17, ptr noundef nonnull align 8 dereferenceable(24) %9)
          to label %67 unwind label %76

67:                                               ; preds = %66
  invoke void @_ZNSt6vectorIP16CornerDescriptorSaIS1_EEC2ERKS3_(ptr noundef nonnull align 8 dereferenceable(24) %18, ptr noundef nonnull align 8 dereferenceable(24) %10)
          to label %68 unwind label %80

68:                                               ; preds = %67
  %69 = load ptr, ptr %7, align 8, !tbaa !5
  invoke void @_Z17computeHomographySt6vectorIP16CornerDescriptorSaIS1_EES3_P6Matrix(ptr noundef %17, ptr noundef %18, ptr noundef %69)
          to label %70 unwind label %84

70:                                               ; preds = %68
  call void @_ZNSt6vectorIP16CornerDescriptorSaIS1_EED2Ev(ptr noundef nonnull align 8 dereferenceable(24) %18) #4
  call void @_ZNSt6vectorIP16CornerDescriptorSaIS1_EED2Ev(ptr noundef nonnull align 8 dereferenceable(24) %17) #4
  %71 = load float, ptr %8, align 4, !tbaa !9
  %72 = fcmp ogt float %71, 1.000000e+00
  br i1 %72, label %73, label %89

73:                                               ; preds = %70
  %74 = load float, ptr %8, align 4, !tbaa !9
  %75 = fadd float %74, -1.000000e+00
  store float %75, ptr %8, align 4, !tbaa !9
  br label %89

76:                                               ; preds = %93, %66, %61, %59, %56, %54, %50, %48, %46, %43, %41, %37, %35, %33, %30, %28, %23
  %77 = landingpad { ptr, i32 }
          cleanup
  %78 = extractvalue { ptr, i32 } %77, 0
  store ptr %78, ptr %15, align 8
  %79 = extractvalue { ptr, i32 } %77, 1
  store i32 %79, ptr %16, align 4
  br label %103

80:                                               ; preds = %67
  %81 = landingpad { ptr, i32 }
          cleanup
  %82 = extractvalue { ptr, i32 } %81, 0
  store ptr %82, ptr %15, align 8
  %83 = extractvalue { ptr, i32 } %81, 1
  store i32 %83, ptr %16, align 4
  br label %88

84:                                               ; preds = %68
  %85 = landingpad { ptr, i32 }
          cleanup
  %86 = extractvalue { ptr, i32 } %85, 0
  store ptr %86, ptr %15, align 8
  %87 = extractvalue { ptr, i32 } %85, 1
  store i32 %87, ptr %16, align 4
  call void @_ZNSt6vectorIP16CornerDescriptorSaIS1_EED2Ev(ptr noundef nonnull align 8 dereferenceable(24) %18) #4
  br label %88

88:                                               ; preds = %84, %80
  call void @_ZNSt6vectorIP16CornerDescriptorSaIS1_EED2Ev(ptr noundef nonnull align 8 dereferenceable(24) %17) #4
  br label %103

89:                                               ; preds = %73, %70
  br label %93

90:                                               ; preds = %63
  %91 = load float, ptr %8, align 4, !tbaa !9
  %92 = fadd float %91, 2.000000e+00
  store float %92, ptr %8, align 4, !tbaa !9
  br label %93

93:                                               ; preds = %90, %89
  %94 = invoke i32 @getchar()
          to label %95 unwind label %76

95:                                               ; preds = %93
  %96 = icmp eq i32 %94, 121
  br i1 %96, label %97, label %98

97:                                               ; preds = %95
  store i32 2, ptr %14, align 4
  br label %102

98:                                               ; preds = %95
  call void @_ZNSt6vectorIP16CornerDescriptorSaIS1_EE5clearEv(ptr noundef nonnull align 8 dereferenceable(24) %9) #4
  call void @_ZNSt6vectorIP16CornerDescriptorSaIS1_EE5clearEv(ptr noundef nonnull align 8 dereferenceable(24) %10) #4
  call void @_ZNSt6vectorIP16CornerDescriptorSaIS1_EE5clearEv(ptr noundef nonnull align 8 dereferenceable(24) %11) #4
  call void @_ZNSt6vectorIP16CornerDescriptorSaIS1_EE5clearEv(ptr noundef nonnull align 8 dereferenceable(24) %12) #4
  br label %99

99:                                               ; preds = %98
  %100 = load i32, ptr %13, align 4, !tbaa !11
  %101 = add nsw i32 %100, 1
  store i32 %101, ptr %13, align 4, !tbaa !11
  br label %19, !llvm.loop !13

102:                                              ; preds = %97, %22
  call void @llvm.lifetime.end.p0(i64 4, ptr %13) #4
  br label %104

103:                                              ; preds = %88, %76
  call void @llvm.lifetime.end.p0(i64 4, ptr %13) #4
  call void @_ZNSt6vectorIP16CornerDescriptorSaIS1_EED2Ev(ptr noundef nonnull align 8 dereferenceable(24) %12) #4
  call void @llvm.lifetime.end.p0(i64 24, ptr %12) #4
  call void @_ZNSt6vectorIP16CornerDescriptorSaIS1_EED2Ev(ptr noundef nonnull align 8 dereferenceable(24) %11) #4
  call void @llvm.lifetime.end.p0(i64 24, ptr %11) #4
  call void @_ZNSt6vectorIP16CornerDescriptorSaIS1_EED2Ev(ptr noundef nonnull align 8 dereferenceable(24) %10) #4
  call void @llvm.lifetime.end.p0(i64 24, ptr %10) #4
  call void @_ZNSt6vectorIP16CornerDescriptorSaIS1_EED2Ev(ptr noundef nonnull align 8 dereferenceable(24) %9) #4
  call void @llvm.lifetime.end.p0(i64 24, ptr %9) #4
  br label %105

104:                                              ; preds = %102
  call void @_ZNSt6vectorIP16CornerDescriptorSaIS1_EED2Ev(ptr noundef nonnull align 8 dereferenceable(24) %12) #4
  call void @llvm.lifetime.end.p0(i64 24, ptr %12) #4
  call void @_ZNSt6vectorIP16CornerDescriptorSaIS1_EED2Ev(ptr noundef nonnull align 8 dereferenceable(24) %11) #4
  call void @llvm.lifetime.end.p0(i64 24, ptr %11) #4
  call void @_ZNSt6vectorIP16CornerDescriptorSaIS1_EED2Ev(ptr noundef nonnull align 8 dereferenceable(24) %10) #4
  call void @llvm.lifetime.end.p0(i64 24, ptr %10) #4
  call void @_ZNSt6vectorIP16CornerDescriptorSaIS1_EED2Ev(ptr noundef nonnull align 8 dereferenceable(24) %9) #4
  call void @llvm.lifetime.end.p0(i64 24, ptr %9) #4
  ret void

105:                                              ; preds = %103
  %106 = load ptr, ptr %15, align 8
  %107 = load i32, ptr %16, align 4
  %108 = insertvalue { ptr, i32 } poison, ptr %106, 0
  %109 = insertvalue { ptr, i32 } %108, i32 %107, 1
  resume { ptr, i32 } %109
}

; Function Attrs: mustprogress nounwind uwtable
declare dso_local void @_ZNSt6vectorIP16CornerDescriptorSaIS1_EEC2Ev(ptr noundef nonnull align 8 dereferenceable(24)) unnamed_addr #1 align 2

; Function Attrs: mustprogress uwtable
declare dso_local void @_ZNSt6vectorIP16CornerDescriptorSaIS1_EEC2ERKS3_(ptr noundef nonnull align 8 dereferenceable(24), ptr noundef nonnull align 8 dereferenceable(24)) unnamed_addr #3 align 2

; Function Attrs: mustprogress nounwind uwtable
declare dso_local void @_ZNSt6vectorIP16CornerDescriptorSaIS1_EED2Ev(ptr noundef nonnull align 8 dereferenceable(24)) unnamed_addr #1 align 2

; Function Attrs: inlinehint mustprogress uwtable
declare i32 @getchar() #2

; Function Attrs: mustprogress nounwind uwtable
declare dso_local void @_ZNSt6vectorIP16CornerDescriptorSaIS1_EE5clearEv(ptr noundef nonnull align 8 dereferenceable(24)) #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 = { 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 #3 = { 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 #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 = !{!"float", !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::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 }
%"class.std::vector" = type { %"struct.std::_Vector_base" }
%"struct.std::_Vector_base" = type { %"struct.std::_Vector_base<CornerDescriptor *, std::allocator<CornerDescriptor *>>::_Vector_impl" }
%"struct.std::_Vector_base<CornerDescriptor *, std::allocator<CornerDescriptor *>>::_Vector_impl" = type { %"struct.std::_Vector_base<CornerDescriptor *, std::allocator<CornerDescriptor *>>::_Vector_impl_data" }
%"struct.std::_Vector_base<CornerDescriptor *, std::allocator<CornerDescriptor *>>::_Vector_impl_data" = type { ptr, ptr, ptr }

@_ZSt4cout = external global %"class.std::basic_ostream", align 8
@.str.6 = external hidden unnamed_addr constant [11 x i8], align 1
@.str.7 = external hidden unnamed_addr constant [10 x i8], align 1
@.str.8 = external hidden unnamed_addr constant [19 x i8], align 1
@.str.9 = external hidden unnamed_addr constant [10 x i8], align 1

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

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) #0

; Function Attrs: mustprogress nounwind uwtable
declare dso_local noundef i64 @_ZNKSt6vectorIP16CornerDescriptorSaIS1_EE4sizeEv(ptr noundef nonnull align 8 dereferenceable(24)) local_unnamed_addr #1 align 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) local_unnamed_addr #2

; 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 #3 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)) #2

; Function Attrs: mustprogress uwtable
declare noundef nonnull align 8 dereferenceable(8) ptr @_ZNSolsEf(ptr noundef nonnull align 8 dereferenceable(8), float noundef) local_unnamed_addr #3 align 2

; Function Attrs: mustprogress uwtable
declare noundef nonnull align 8 dereferenceable(8) ptr @_ZNSolsEm(ptr noundef nonnull align 8 dereferenceable(8), i64 noundef) local_unnamed_addr #3 align 2

; Function Attrs: mustprogress uwtable
declare dso_local void @_Z23matchPointsByHomographyRSt6vectorIP16CornerDescriptorSaIS1_EES4_S4_S4_P6Matrixf(ptr noundef nonnull align 8 dereferenceable(24), ptr noundef nonnull align 8 dereferenceable(24), ptr noundef nonnull align 8 dereferenceable(24), ptr noundef nonnull align 8 dereferenceable(24), ptr noundef, float noundef) local_unnamed_addr #3

; Function Attrs: mustprogress uwtable
declare dso_local void @_Z17computeHomographySt6vectorIP16CornerDescriptorSaIS1_EES3_P6Matrix(ptr noundef, ptr noundef, ptr noundef) local_unnamed_addr #3

; Function Attrs: mustprogress uwtable
define dso_local void @_Z21computeHomographyPrecRSt6vectorIP16CornerDescriptorSaIS1_EES4_P6Matrixf(ptr noundef nonnull align 8 dereferenceable(24) %0, ptr noundef nonnull align 8 dereferenceable(24) %1, ptr noundef %2, float noundef %3) local_unnamed_addr #3 personality ptr @__gxx_personality_v0 {
  %5 = alloca %"class.std::vector", align 8
  %6 = alloca %"class.std::vector", align 8
  %7 = alloca %"class.std::vector", align 8
  %8 = alloca %"class.std::vector", align 8
  %9 = alloca %"class.std::vector", align 8
  %10 = alloca %"class.std::vector", align 8
  call void @llvm.lifetime.start.p0(i64 24, ptr nonnull %5) #5
  call void @_ZNSt6vectorIP16CornerDescriptorSaIS1_EEC2Ev(ptr noundef nonnull align 8 dereferenceable(24) %5) #5
  call void @llvm.lifetime.start.p0(i64 24, ptr nonnull %6) #5
  call void @_ZNSt6vectorIP16CornerDescriptorSaIS1_EEC2Ev(ptr noundef nonnull align 8 dereferenceable(24) %6) #5
  call void @llvm.lifetime.start.p0(i64 24, ptr nonnull %7) #5
  call void @_ZNSt6vectorIP16CornerDescriptorSaIS1_EEC2Ev(ptr noundef nonnull align 8 dereferenceable(24) %7) #5
  call void @llvm.lifetime.start.p0(i64 24, ptr nonnull %8) #5
  call void @_ZNSt6vectorIP16CornerDescriptorSaIS1_EEC2Ev(ptr noundef nonnull align 8 dereferenceable(24) %8) #5
  br label %11

11:                                               ; preds = %4, %66
  %.01622 = phi i32 [ 0, %4 ], [ %67, %66 ]
  %.01721 = phi float [ %3, %4 ], [ %.118, %66 ]
  invoke void @_Z23matchPointsByHomographyRSt6vectorIP16CornerDescriptorSaIS1_EES4_S4_S4_P6Matrixf(ptr noundef nonnull align 8 dereferenceable(24) %0, ptr noundef nonnull align 8 dereferenceable(24) %1, ptr noundef nonnull align 8 dereferenceable(24) %5, ptr noundef nonnull align 8 dereferenceable(24) %6, ptr noundef %2, float noundef %.01721)
          to label %12 unwind label %54

12:                                               ; preds = %11
  %13 = invoke noundef nonnull align 8 dereferenceable(8) ptr @_ZStlsISt11char_traitsIcEERSt13basic_ostreamIcT_ES5_PKc(ptr noundef nonnull align 8 dereferenceable(8) @_ZSt4cout, ptr noundef nonnull @.str.6)
          to label %14 unwind label %54

14:                                               ; preds = %12
  %15 = invoke noundef nonnull align 8 dereferenceable(8) ptr @_ZNSolsEf(ptr noundef nonnull align 8 dereferenceable(8) %13, float noundef %.01721)
          to label %16 unwind label %54

16:                                               ; preds = %14
  %17 = invoke noundef nonnull align 8 dereferenceable(8) ptr @_ZNSolsEPFRSoS_E(ptr noundef nonnull align 8 dereferenceable(8) %15, ptr noundef nonnull @_ZSt4endlIcSt11char_traitsIcEERSt13basic_ostreamIT_T0_ES6_)
          to label %18 unwind label %54

18:                                               ; preds = %16
  %19 = invoke noundef nonnull align 8 dereferenceable(8) ptr @_ZStlsISt11char_traitsIcEERSt13basic_ostreamIcT_ES5_PKc(ptr noundef nonnull align 8 dereferenceable(8) @_ZSt4cout, ptr noundef nonnull @.str.7)
          to label %20 unwind label %54

20:                                               ; preds = %18
  %21 = call noundef i64 @_ZNKSt6vectorIP16CornerDescriptorSaIS1_EE4sizeEv(ptr noundef nonnull align 8 dereferenceable(24) %0) #5
  %22 = invoke noundef nonnull align 8 dereferenceable(8) ptr @_ZNSolsEm(ptr noundef nonnull align 8 dereferenceable(8) %19, i64 noundef %21)
          to label %23 unwind label %54

23:                                               ; preds = %20
  %24 = invoke noundef nonnull align 8 dereferenceable(8) ptr @_ZStlsISt11char_traitsIcEERSt13basic_ostreamIcT_ES5_PKc(ptr noundef nonnull align 8 dereferenceable(8) %22, ptr noundef nonnull @.str.8)
          to label %25 unwind label %54

25:                                               ; preds = %23
  %26 = call noundef i64 @_ZNKSt6vectorIP16CornerDescriptorSaIS1_EE4sizeEv(ptr noundef nonnull align 8 dereferenceable(24) %5) #5
  %27 = invoke noundef nonnull align 8 dereferenceable(8) ptr @_ZNSolsEm(ptr noundef nonnull align 8 dereferenceable(8) %24, i64 noundef %26)
          to label %28 unwind label %54

28:                                               ; preds = %25
  %29 = invoke noundef nonnull align 8 dereferenceable(8) ptr @_ZNSolsEPFRSoS_E(ptr noundef nonnull align 8 dereferenceable(8) %27, ptr noundef nonnull @_ZSt4endlIcSt11char_traitsIcEERSt13basic_ostreamIT_T0_ES6_)
          to label %30 unwind label %54

30:                                               ; preds = %28
  %31 = invoke noundef nonnull align 8 dereferenceable(8) ptr @_ZStlsISt11char_traitsIcEERSt13basic_ostreamIcT_ES5_PKc(ptr noundef nonnull align 8 dereferenceable(8) @_ZSt4cout, ptr noundef nonnull @.str.9)
          to label %32 unwind label %54

32:                                               ; preds = %30
  %33 = call noundef i64 @_ZNKSt6vectorIP16CornerDescriptorSaIS1_EE4sizeEv(ptr noundef nonnull align 8 dereferenceable(24) %1) #5
  %34 = invoke noundef nonnull align 8 dereferenceable(8) ptr @_ZNSolsEm(ptr noundef nonnull align 8 dereferenceable(8) %31, i64 noundef %33)
          to label %35 unwind label %54

35:                                               ; preds = %32
  %36 = invoke noundef nonnull align 8 dereferenceable(8) ptr @_ZStlsISt11char_traitsIcEERSt13basic_ostreamIcT_ES5_PKc(ptr noundef nonnull align 8 dereferenceable(8) %34, ptr noundef nonnull @.str.8)
          to label %37 unwind label %54

37:                                               ; preds = %35
  %38 = call noundef i64 @_ZNKSt6vectorIP16CornerDescriptorSaIS1_EE4sizeEv(ptr noundef nonnull align 8 dereferenceable(24) %6) #5
  %39 = invoke noundef nonnull align 8 dereferenceable(8) ptr @_ZNSolsEm(ptr noundef nonnull align 8 dereferenceable(8) %36, i64 noundef %38)
          to label %40 unwind label %54

40:                                               ; preds = %37
  %41 = invoke noundef nonnull align 8 dereferenceable(8) ptr @_ZNSolsEPFRSoS_E(ptr noundef nonnull align 8 dereferenceable(8) %39, ptr noundef nonnull @_ZSt4endlIcSt11char_traitsIcEERSt13basic_ostreamIT_T0_ES6_)
          to label %42 unwind label %54

42:                                               ; preds = %40
  %43 = invoke noundef nonnull align 8 dereferenceable(8) ptr @_ZNSolsEPFRSoS_E(ptr noundef nonnull align 8 dereferenceable(8) %41, ptr noundef nonnull @_ZSt4endlIcSt11char_traitsIcEERSt13basic_ostreamIT_T0_ES6_)
          to label %44 unwind label %54

44:                                               ; preds = %42
  %45 = call noundef i64 @_ZNKSt6vectorIP16CornerDescriptorSaIS1_EE4sizeEv(ptr noundef nonnull align 8 dereferenceable(24) %5) #5
  %46 = icmp ugt i64 %45, 10
  br i1 %46, label %47, label %61

47:                                               ; preds = %44
  invoke void @_ZNSt6vectorIP16CornerDescriptorSaIS1_EEC2ERKS3_(ptr noundef nonnull align 8 dereferenceable(24) %9, ptr noundef nonnull align 8 dereferenceable(24) %5)
          to label %48 unwind label %54

48:                                               ; preds = %47
  invoke void @_ZNSt6vectorIP16CornerDescriptorSaIS1_EEC2ERKS3_(ptr noundef nonnull align 8 dereferenceable(24) %10, ptr noundef nonnull align 8 dereferenceable(24) %6)
          to label %49 unwind label %56

49:                                               ; preds = %48
  invoke void @_Z17computeHomographySt6vectorIP16CornerDescriptorSaIS1_EES3_P6Matrix(ptr noundef nonnull %9, ptr noundef nonnull %10, ptr noundef %2)
          to label %50 unwind label %58

50:                                               ; preds = %49
  call void @_ZNSt6vectorIP16CornerDescriptorSaIS1_EED2Ev(ptr noundef nonnull align 8 dereferenceable(24) %10) #5
  call void @_ZNSt6vectorIP16CornerDescriptorSaIS1_EED2Ev(ptr noundef nonnull align 8 dereferenceable(24) %9) #5
  %51 = fcmp ogt float %.01721, 1.000000e+00
  br i1 %51, label %52, label %63

52:                                               ; preds = %50
  %53 = fadd float %.01721, -1.000000e+00
  br label %63

54:                                               ; preds = %47, %42, %40, %37, %35, %32, %30, %28, %25, %23, %20, %18, %16, %14, %12, %11
  %55 = landingpad { ptr, i32 }
          cleanup
  br label %69

56:                                               ; preds = %48
  %57 = landingpad { ptr, i32 }
          cleanup
  br label %60

58:                                               ; preds = %49
  %59 = landingpad { ptr, i32 }
          cleanup
  call void @_ZNSt6vectorIP16CornerDescriptorSaIS1_EED2Ev(ptr noundef nonnull align 8 dereferenceable(24) %10) #5
  br label %60

60:                                               ; preds = %58, %56
  %.pn = phi { ptr, i32 } [ %59, %58 ], [ %57, %56 ]
  call void @_ZNSt6vectorIP16CornerDescriptorSaIS1_EED2Ev(ptr noundef nonnull align 8 dereferenceable(24) %9) #5
  br label %69

61:                                               ; preds = %44
  %62 = fadd float %.01721, 2.000000e+00
  br label %63

63:                                               ; preds = %50, %52, %61
  %.118 = phi float [ %53, %52 ], [ %.01721, %50 ], [ %62, %61 ]
  %64 = call i32 @getchar()
  %65 = icmp eq i32 %64, 121
  br i1 %65, label %68, label %66

66:                                               ; preds = %63
  call void @_ZNSt6vectorIP16CornerDescriptorSaIS1_EE5clearEv(ptr noundef nonnull align 8 dereferenceable(24) %5) #5
  call void @_ZNSt6vectorIP16CornerDescriptorSaIS1_EE5clearEv(ptr noundef nonnull align 8 dereferenceable(24) %6) #5
  call void @_ZNSt6vectorIP16CornerDescriptorSaIS1_EE5clearEv(ptr noundef nonnull align 8 dereferenceable(24) %7) #5
  call void @_ZNSt6vectorIP16CornerDescriptorSaIS1_EE5clearEv(ptr noundef nonnull align 8 dereferenceable(24) %8) #5
  %67 = add nuw nsw i32 %.01622, 1
  %exitcond.not = icmp eq i32 %67, 15
  br i1 %exitcond.not, label %68, label %11, !llvm.loop !5

68:                                               ; preds = %63, %66
  call void @_ZNSt6vectorIP16CornerDescriptorSaIS1_EED2Ev(ptr noundef nonnull align 8 dereferenceable(24) %8) #5
  call void @llvm.lifetime.end.p0(i64 24, ptr nonnull %8) #5
  call void @_ZNSt6vectorIP16CornerDescriptorSaIS1_EED2Ev(ptr noundef nonnull align 8 dereferenceable(24) %7) #5
  call void @llvm.lifetime.end.p0(i64 24, ptr nonnull %7) #5
  call void @_ZNSt6vectorIP16CornerDescriptorSaIS1_EED2Ev(ptr noundef nonnull align 8 dereferenceable(24) %6) #5
  call void @llvm.lifetime.end.p0(i64 24, ptr nonnull %6) #5
  call void @_ZNSt6vectorIP16CornerDescriptorSaIS1_EED2Ev(ptr noundef nonnull align 8 dereferenceable(24) %5) #5
  call void @llvm.lifetime.end.p0(i64 24, ptr nonnull %5) #5
  ret void

69:                                               ; preds = %60, %54
  %.pn.pn = phi { ptr, i32 } [ %.pn, %60 ], [ %55, %54 ]
  call void @_ZNSt6vectorIP16CornerDescriptorSaIS1_EED2Ev(ptr noundef nonnull align 8 dereferenceable(24) %8) #5
  call void @llvm.lifetime.end.p0(i64 24, ptr nonnull %8) #5
  call void @_ZNSt6vectorIP16CornerDescriptorSaIS1_EED2Ev(ptr noundef nonnull align 8 dereferenceable(24) %7) #5
  call void @llvm.lifetime.end.p0(i64 24, ptr nonnull %7) #5
  call void @_ZNSt6vectorIP16CornerDescriptorSaIS1_EED2Ev(ptr noundef nonnull align 8 dereferenceable(24) %6) #5
  call void @llvm.lifetime.end.p0(i64 24, ptr nonnull %6) #5
  call void @_ZNSt6vectorIP16CornerDescriptorSaIS1_EED2Ev(ptr noundef nonnull align 8 dereferenceable(24) %5) #5
  call void @llvm.lifetime.end.p0(i64 24, ptr nonnull %5) #5
  resume { ptr, i32 } %.pn.pn
}

; Function Attrs: mustprogress nounwind uwtable
declare dso_local void @_ZNSt6vectorIP16CornerDescriptorSaIS1_EEC2Ev(ptr noundef nonnull align 8 dereferenceable(24)) unnamed_addr #1 align 2

; Function Attrs: mustprogress uwtable
declare dso_local void @_ZNSt6vectorIP16CornerDescriptorSaIS1_EEC2ERKS3_(ptr noundef nonnull align 8 dereferenceable(24), ptr noundef nonnull align 8 dereferenceable(24)) unnamed_addr #3 align 2

; Function Attrs: mustprogress nounwind uwtable
declare dso_local void @_ZNSt6vectorIP16CornerDescriptorSaIS1_EED2Ev(ptr noundef nonnull align 8 dereferenceable(24)) unnamed_addr #1 align 2

; Function Attrs: inlinehint mustprogress nofree nounwind uwtable
declare noundef i32 @getchar() local_unnamed_addr #4

; Function Attrs: mustprogress nounwind uwtable
declare dso_local void @_ZNSt6vectorIP16CornerDescriptorSaIS1_EE5clearEv(ptr noundef nonnull align 8 dereferenceable(24)) local_unnamed_addr #1 align 2

attributes #0 = { mustprogress 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 = { 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 #3 = { 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 #4 = { inlinehint mustprogress nofree 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 #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 = distinct !{!5, !6}
!6 = !{!"llvm.loop.mustprogress"}


; Effective O3 passes: GlobalOptPass,IndVarSimplifyPass,InferFunctionAttrsPass,InstCombinePass,LoopRotatePass,SROAPass,SimplifyCFGPass