; LLVM IR from chensoft/libsocket :: lib/libchen/src/base (regex)

; 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::__cxx11::basic_string" = type { %"struct.std::__cxx11::basic_string<char>::_Alloc_hider", i64, %union.anon }
%"struct.std::__cxx11::basic_string<char>::_Alloc_hider" = type { ptr }
%union.anon = type { i64, [8 x i8] }
%"class.std::__cxx11::match_results" = type { %"class.std::vector", %"class.__gnu_cxx::__normal_iterator" }
%"class.std::vector" = type { %"struct.std::_Vector_base" }
%"struct.std::_Vector_base" = type { %"struct.std::_Vector_base<std::__cxx11::sub_match<__gnu_cxx::__normal_iterator<const char *, std::__cxx11::basic_string<char>>>, std::allocator<std::__cxx11::sub_match<__gnu_cxx::__normal_iterator<const char *, std::__cxx11::basic_string<char>>>>>::_Vector_impl" }
%"struct.std::_Vector_base<std::__cxx11::sub_match<__gnu_cxx::__normal_iterator<const char *, std::__cxx11::basic_string<char>>>, std::allocator<std::__cxx11::sub_match<__gnu_cxx::__normal_iterator<const char *, std::__cxx11::basic_string<char>>>>>::_Vector_impl" = type { %"struct.std::_Vector_base<std::__cxx11::sub_match<__gnu_cxx::__normal_iterator<const char *, std::__cxx11::basic_string<char>>>, std::allocator<std::__cxx11::sub_match<__gnu_cxx::__normal_iterator<const char *, std::__cxx11::basic_string<char>>>>>::_Vector_impl_data" }
%"struct.std::_Vector_base<std::__cxx11::sub_match<__gnu_cxx::__normal_iterator<const char *, std::__cxx11::basic_string<char>>>, std::allocator<std::__cxx11::sub_match<__gnu_cxx::__normal_iterator<const char *, std::__cxx11::basic_string<char>>>>>::_Vector_impl_data" = type { ptr, ptr, ptr }
%"class.__gnu_cxx::__normal_iterator" = type { ptr }
%"class.__gnu_cxx::__normal_iterator.3" = type { ptr }

@.str = external hidden unnamed_addr constant [2 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 uwtable
define dso_local void @_ZN4chen5regex6expandERKNSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEEERKNS1_11basic_regexIcNS1_12regex_traitsIcEEEES8_(ptr dead_on_unwind noalias writable sret(%"class.std::__cxx11::basic_string") align 8 %0, ptr noundef nonnull align 8 dereferenceable(32) %1, ptr noundef nonnull align 8 dereferenceable(32) %2, ptr noundef nonnull align 8 dereferenceable(32) %3) #1 align 2 personality ptr @__gxx_personality_v0 {
  %5 = alloca ptr, align 8
  %6 = alloca ptr, align 8
  %7 = alloca ptr, align 8
  %8 = alloca ptr, align 8
  %9 = alloca %"class.std::__cxx11::match_results", align 8
  %10 = alloca i1, align 1
  %11 = alloca ptr, align 8
  %12 = alloca i32, align 4
  %13 = alloca i32, align 4
  %14 = alloca ptr, align 8
  %15 = alloca %"class.__gnu_cxx::__normal_iterator.3", align 8
  %16 = alloca %"class.__gnu_cxx::__normal_iterator.3", align 8
  %17 = alloca ptr, align 8
  %18 = alloca %"class.std::__cxx11::basic_string", align 8
  %19 = alloca %"class.std::__cxx11::basic_string", align 8
  %20 = alloca %"class.std::__cxx11::basic_string", align 8
  store ptr %0, ptr %5, align 8
  store ptr %1, ptr %6, align 8, !tbaa !5
  store ptr %2, ptr %7, align 8, !tbaa !5
  store ptr %3, ptr %8, align 8, !tbaa !5
  call void @llvm.lifetime.start.p0(i64 32, ptr %9) #6
  call void @_ZNSt7__cxx1113match_resultsIN9__gnu_cxx17__normal_iteratorIPKcNS_12basic_stringIcSt11char_traitsIcESaIcEEEEESaINS_9sub_matchISA_EEEEC2Ev(ptr noundef nonnull align 8 dereferenceable(32) %9)
  store i1 false, ptr %10, align 1
  %21 = load ptr, ptr %8, align 8, !tbaa !5
  invoke void @_ZNSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEEC2ERKS4_(ptr noundef nonnull align 8 dereferenceable(32) %0, ptr noundef nonnull align 8 dereferenceable(32) %21)
          to label %22 unwind label %37

22:                                               ; preds = %4
  call void @llvm.lifetime.start.p0(i64 4, ptr %13) #6
  store i32 0, ptr %13, align 4, !tbaa !9
  %23 = load ptr, ptr %6, align 8, !tbaa !5
  %24 = load ptr, ptr %7, align 8, !tbaa !5
  %25 = invoke noundef zeroext i1 @_ZSt12regex_searchISt11char_traitsIcESaIcESaINSt7__cxx119sub_matchIN9__gnu_cxx17__normal_iteratorIPKcNS3_12basic_stringIcS1_S2_EEEEEEEcNS3_12regex_traitsIcEEEbRKNS9_IT2_T_T0_EERNS3_13match_resultsINSJ_14const_iteratorET1_EERKNS3_11basic_regexISG_T3_EENSt15regex_constants15match_flag_typeE(ptr noundef nonnull align 8 dereferenceable(32) %23, ptr noundef nonnull align 8 dereferenceable(32) %9, ptr noundef nonnull align 8 dereferenceable(32) %24, i32 noundef 0)
          to label %26 unwind label %41

26:                                               ; preds = %22
  br i1 %25, label %27, label %77

27:                                               ; preds = %26
  call void @llvm.lifetime.start.p0(i64 8, ptr %14) #6
  store ptr %9, ptr %14, align 8, !tbaa !5
  call void @llvm.lifetime.start.p0(i64 8, ptr %15) #6
  %28 = load ptr, ptr %14, align 8, !tbaa !5
  %29 = call ptr @_ZNKSt7__cxx1113match_resultsIN9__gnu_cxx17__normal_iteratorIPKcNS_12basic_stringIcSt11char_traitsIcESaIcEEEEESaINS_9sub_matchISA_EEEE5beginEv(ptr noundef nonnull align 8 dereferenceable(32) %28) #6
  %30 = getelementptr inbounds %"class.__gnu_cxx::__normal_iterator.3", ptr %15, i32 0, i32 0
  store ptr %29, ptr %30, align 8
  call void @llvm.lifetime.start.p0(i64 8, ptr %16) #6
  %31 = load ptr, ptr %14, align 8, !tbaa !5
  %32 = call ptr @_ZNKSt7__cxx1113match_resultsIN9__gnu_cxx17__normal_iteratorIPKcNS_12basic_stringIcSt11char_traitsIcESaIcEEEEESaINS_9sub_matchISA_EEEE3endEv(ptr noundef nonnull align 8 dereferenceable(32) %31) #6
  %33 = getelementptr inbounds %"class.__gnu_cxx::__normal_iterator.3", ptr %16, i32 0, i32 0
  store ptr %32, ptr %33, align 8
  br label %34

34:                                               ; preds = %55, %27
  %35 = call noundef zeroext i1 @_ZN9__gnu_cxxneIPKNSt7__cxx119sub_matchINS_17__normal_iteratorIPKcNS1_12basic_stringIcSt11char_traitsIcESaIcEEEEEEESt6vectorISC_SaISC_EEEEbRKNS3_IT_T0_EESM_(ptr noundef nonnull align 8 dereferenceable(8) %15, ptr noundef nonnull align 8 dereferenceable(8) %16) #6
  br i1 %35, label %45, label %36

36:                                               ; preds = %34
  call void @llvm.lifetime.end.p0(i64 8, ptr %16) #6
  call void @llvm.lifetime.end.p0(i64 8, ptr %15) #6
  call void @llvm.lifetime.end.p0(i64 8, ptr %14) #6
  br label %76

37:                                               ; preds = %4
  %38 = landingpad { ptr, i32 }
          cleanup
  %39 = extractvalue { ptr, i32 } %38, 0
  store ptr %39, ptr %11, align 8
  %40 = extractvalue { ptr, i32 } %38, 1
  store i32 %40, ptr %12, align 4
  br label %82

41:                                               ; preds = %22
  %42 = landingpad { ptr, i32 }
          cleanup
  %43 = extractvalue { ptr, i32 } %42, 0
  store ptr %43, ptr %11, align 8
  %44 = extractvalue { ptr, i32 } %42, 1
  store i32 %44, ptr %12, align 4
  br label %79

45:                                               ; preds = %34
  call void @llvm.lifetime.start.p0(i64 8, ptr %17) #6
  %46 = call noundef nonnull align 8 dereferenceable(17) ptr @_ZNK9__gnu_cxx17__normal_iteratorIPKNSt7__cxx119sub_matchINS0_IPKcNS1_12basic_stringIcSt11char_traitsIcESaIcEEEEEEESt6vectorISB_SaISB_EEEdeEv(ptr noundef nonnull align 8 dereferenceable(8) %15) #6
  store ptr %46, ptr %17, align 8, !tbaa !5
  call void @llvm.lifetime.start.p0(i64 32, ptr %18) #6
  call void @llvm.lifetime.start.p0(i64 32, ptr %19) #6
  %47 = load i32, ptr %13, align 4, !tbaa !9
  %48 = add nsw i32 %47, 1
  store i32 %48, ptr %13, align 4, !tbaa !9
  invoke void @_ZN4chen3num3strB5cxx11Ei(ptr dead_on_unwind writable sret(%"class.std::__cxx11::basic_string") align 8 %19, i32 noundef %47)
          to label %49 unwind label %57

49:                                               ; preds = %45
  invoke void @_ZStplIcSt11char_traitsIcESaIcEENSt7__cxx1112basic_stringIT_T0_T1_EEPKS5_OS8_(ptr dead_on_unwind writable sret(%"class.std::__cxx11::basic_string") align 8 %18, ptr noundef @.str, ptr noundef nonnull align 8 dereferenceable(32) %19)
          to label %50 unwind label %61

50:                                               ; preds = %49
  call void @llvm.lifetime.start.p0(i64 32, ptr %20) #6
  %51 = load ptr, ptr %17, align 8, !tbaa !5
  invoke void @_ZNKSt7__cxx119sub_matchIN9__gnu_cxx17__normal_iteratorIPKcNS_12basic_stringIcSt11char_traitsIcESaIcEEEEEEcvS9_Ev(ptr dead_on_unwind writable sret(%"class.std::__cxx11::basic_string") align 8 %20, ptr noundef nonnull align 8 dereferenceable(17) %51)
          to label %52 unwind label %65

52:                                               ; preds = %50
  %53 = invoke noundef nonnull align 8 dereferenceable(32) ptr @_ZN4chen3str7replaceERNSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEEERKS6_S9_b(ptr noundef nonnull align 8 dereferenceable(32) %0, ptr noundef nonnull align 8 dereferenceable(32) %18, ptr noundef nonnull align 8 dereferenceable(32) %20, i1 noundef zeroext true)
          to label %54 unwind label %69

54:                                               ; preds = %52
  call void @_ZNSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEED2Ev(ptr noundef nonnull align 8 dereferenceable(32) %20) #6
  call void @llvm.lifetime.end.p0(i64 32, ptr %20) #6
  call void @_ZNSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEED2Ev(ptr noundef nonnull align 8 dereferenceable(32) %18) #6
  call void @_ZNSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEED2Ev(ptr noundef nonnull align 8 dereferenceable(32) %19) #6
  call void @llvm.lifetime.end.p0(i64 32, ptr %19) #6
  call void @llvm.lifetime.end.p0(i64 32, ptr %18) #6
  call void @llvm.lifetime.end.p0(i64 8, ptr %17) #6
  br label %55

55:                                               ; preds = %54
  %56 = call noundef nonnull align 8 dereferenceable(8) ptr @_ZN9__gnu_cxx17__normal_iteratorIPKNSt7__cxx119sub_matchINS0_IPKcNS1_12basic_stringIcSt11char_traitsIcESaIcEEEEEEESt6vectorISB_SaISB_EEEppEv(ptr noundef nonnull align 8 dereferenceable(8) %15) #6
  br label %34

57:                                               ; preds = %45
  %58 = landingpad { ptr, i32 }
          cleanup
  %59 = extractvalue { ptr, i32 } %58, 0
  store ptr %59, ptr %11, align 8
  %60 = extractvalue { ptr, i32 } %58, 1
  store i32 %60, ptr %12, align 4
  br label %75

61:                                               ; preds = %49
  %62 = landingpad { ptr, i32 }
          cleanup
  %63 = extractvalue { ptr, i32 } %62, 0
  store ptr %63, ptr %11, align 8
  %64 = extractvalue { ptr, i32 } %62, 1
  store i32 %64, ptr %12, align 4
  br label %74

65:                                               ; preds = %50
  %66 = landingpad { ptr, i32 }
          cleanup
  %67 = extractvalue { ptr, i32 } %66, 0
  store ptr %67, ptr %11, align 8
  %68 = extractvalue { ptr, i32 } %66, 1
  store i32 %68, ptr %12, align 4
  br label %73

69:                                               ; preds = %52
  %70 = landingpad { ptr, i32 }
          cleanup
  %71 = extractvalue { ptr, i32 } %70, 0
  store ptr %71, ptr %11, align 8
  %72 = extractvalue { ptr, i32 } %70, 1
  store i32 %72, ptr %12, align 4
  call void @_ZNSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEED2Ev(ptr noundef nonnull align 8 dereferenceable(32) %20) #6
  br label %73

73:                                               ; preds = %69, %65
  call void @llvm.lifetime.end.p0(i64 32, ptr %20) #6
  call void @_ZNSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEED2Ev(ptr noundef nonnull align 8 dereferenceable(32) %18) #6
  br label %74

74:                                               ; preds = %73, %61
  call void @_ZNSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEED2Ev(ptr noundef nonnull align 8 dereferenceable(32) %19) #6
  br label %75

75:                                               ; preds = %74, %57
  call void @llvm.lifetime.end.p0(i64 32, ptr %19) #6
  call void @llvm.lifetime.end.p0(i64 32, ptr %18) #6
  call void @llvm.lifetime.end.p0(i64 8, ptr %17) #6
  call void @llvm.lifetime.end.p0(i64 8, ptr %16) #6
  call void @llvm.lifetime.end.p0(i64 8, ptr %15) #6
  call void @llvm.lifetime.end.p0(i64 8, ptr %14) #6
  br label %79

76:                                               ; preds = %36
  br label %77

77:                                               ; preds = %76, %26
  store i1 true, ptr %10, align 1
  call void @llvm.lifetime.end.p0(i64 4, ptr %13) #6
  %78 = load i1, ptr %10, align 1
  br i1 %78, label %81, label %80

79:                                               ; preds = %75, %41
  call void @llvm.lifetime.end.p0(i64 4, ptr %13) #6
  call void @_ZNSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEED2Ev(ptr noundef nonnull align 8 dereferenceable(32) %0) #6
  br label %82

80:                                               ; preds = %77
  call void @_ZNSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEED2Ev(ptr noundef nonnull align 8 dereferenceable(32) %0) #6
  br label %81

81:                                               ; preds = %80, %77
  call void @_ZNSt6vectorINSt7__cxx119sub_matchIN9__gnu_cxx17__normal_iteratorIPKcNS0_12basic_stringIcSt11char_traitsIcESaIcEEEEEEESaISC_EED2Ev(ptr noundef nonnull align 8 dereferenceable(32) %9) #6
  call void @llvm.lifetime.end.p0(i64 32, ptr %9) #6
  ret void

82:                                               ; preds = %79, %37
  call void @_ZNSt6vectorINSt7__cxx119sub_matchIN9__gnu_cxx17__normal_iteratorIPKcNS0_12basic_stringIcSt11char_traitsIcESaIcEEEEEEESaISC_EED2Ev(ptr noundef nonnull align 8 dereferenceable(32) %9) #6
  call void @llvm.lifetime.end.p0(i64 32, ptr %9) #6
  br label %83

83:                                               ; preds = %82
  %84 = load ptr, ptr %11, align 8
  %85 = load i32, ptr %12, align 4
  %86 = insertvalue { ptr, i32 } poison, ptr %84, 0
  %87 = insertvalue { ptr, i32 } %86, i32 %85, 1
  resume { ptr, i32 } %87
}

; Function Attrs: mustprogress nounwind uwtable
declare dso_local void @_ZNSt7__cxx1113match_resultsIN9__gnu_cxx17__normal_iteratorIPKcNS_12basic_stringIcSt11char_traitsIcESaIcEEEEESaINS_9sub_matchISA_EEEEC2Ev(ptr noundef nonnull align 8 dereferenceable(32)) unnamed_addr #2 align 2

; Function Attrs: mustprogress uwtable
declare void @_ZNSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEEC2ERKS4_(ptr noundef nonnull align 8 dereferenceable(32), ptr noundef nonnull align 8 dereferenceable(32)) unnamed_addr #1 align 2

; Function Attrs: inlinehint mustprogress uwtable
declare dso_local noundef zeroext i1 @_ZSt12regex_searchISt11char_traitsIcESaIcESaINSt7__cxx119sub_matchIN9__gnu_cxx17__normal_iteratorIPKcNS3_12basic_stringIcS1_S2_EEEEEEEcNS3_12regex_traitsIcEEEbRKNS9_IT2_T_T0_EERNS3_13match_resultsINSJ_14const_iteratorET1_EERKNS3_11basic_regexISG_T3_EENSt15regex_constants15match_flag_typeE(ptr noundef nonnull align 8 dereferenceable(32), ptr noundef nonnull align 8 dereferenceable(32), ptr noundef nonnull align 8 dereferenceable(32), i32 noundef) #3

; Function Attrs: mustprogress nounwind uwtable
declare dso_local ptr @_ZNKSt7__cxx1113match_resultsIN9__gnu_cxx17__normal_iteratorIPKcNS_12basic_stringIcSt11char_traitsIcESaIcEEEEESaINS_9sub_matchISA_EEEE5beginEv(ptr noundef nonnull align 8 dereferenceable(32)) #2 align 2

; Function Attrs: mustprogress nounwind uwtable
declare dso_local ptr @_ZNKSt7__cxx1113match_resultsIN9__gnu_cxx17__normal_iteratorIPKcNS_12basic_stringIcSt11char_traitsIcESaIcEEEEESaINS_9sub_matchISA_EEEE3endEv(ptr noundef nonnull align 8 dereferenceable(32)) #2 align 2

; Function Attrs: inlinehint mustprogress nounwind uwtable
declare dso_local noundef zeroext i1 @_ZN9__gnu_cxxneIPKNSt7__cxx119sub_matchINS_17__normal_iteratorIPKcNS1_12basic_stringIcSt11char_traitsIcESaIcEEEEEEESt6vectorISC_SaISC_EEEEbRKNS3_IT_T0_EESM_(ptr noundef nonnull align 8 dereferenceable(8), ptr noundef nonnull align 8 dereferenceable(8)) #4

; Function Attrs: mustprogress nounwind uwtable
declare dso_local noundef nonnull align 8 dereferenceable(17) ptr @_ZNK9__gnu_cxx17__normal_iteratorIPKNSt7__cxx119sub_matchINS0_IPKcNS1_12basic_stringIcSt11char_traitsIcESaIcEEEEEEESt6vectorISB_SaISB_EEEdeEv(ptr noundef nonnull align 8 dereferenceable(8)) #2 align 2

declare noundef nonnull align 8 dereferenceable(32) ptr @_ZN4chen3str7replaceERNSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEEERKS6_S9_b(ptr noundef nonnull align 8 dereferenceable(32), ptr noundef nonnull align 8 dereferenceable(32), ptr noundef nonnull align 8 dereferenceable(32), i1 noundef zeroext) #5

; Function Attrs: inlinehint mustprogress uwtable
declare dso_local void @_ZStplIcSt11char_traitsIcESaIcEENSt7__cxx1112basic_stringIT_T0_T1_EEPKS5_OS8_(ptr dead_on_unwind noalias writable sret(%"class.std::__cxx11::basic_string") align 8, ptr noundef, ptr noundef nonnull align 8 dereferenceable(32)) #3

declare void @_ZN4chen3num3strB5cxx11Ei(ptr dead_on_unwind writable sret(%"class.std::__cxx11::basic_string") align 8, i32 noundef) #5

; Function Attrs: mustprogress uwtable
declare dso_local void @_ZNKSt7__cxx119sub_matchIN9__gnu_cxx17__normal_iteratorIPKcNS_12basic_stringIcSt11char_traitsIcESaIcEEEEEEcvS9_Ev(ptr dead_on_unwind noalias writable sret(%"class.std::__cxx11::basic_string") align 8, ptr noundef nonnull align 8 dereferenceable(17)) #1 align 2

; Function Attrs: mustprogress nounwind uwtable
declare void @_ZNSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEED2Ev(ptr noundef nonnull align 8 dereferenceable(32)) unnamed_addr #2 align 2

; Function Attrs: mustprogress nounwind uwtable
declare dso_local noundef nonnull align 8 dereferenceable(8) ptr @_ZN9__gnu_cxx17__normal_iteratorIPKNSt7__cxx119sub_matchINS0_IPKcNS1_12basic_stringIcSt11char_traitsIcESaIcEEEEEEESt6vectorISB_SaISB_EEEppEv(ptr noundef nonnull align 8 dereferenceable(8)) #2 align 2

; Function Attrs: mustprogress nounwind uwtable
declare dso_local void @_ZNSt6vectorINSt7__cxx119sub_matchIN9__gnu_cxx17__normal_iteratorIPKcNS0_12basic_stringIcSt11char_traitsIcESaIcEEEEEEESaISC_EED2Ev(ptr noundef nonnull align 8 dereferenceable(24)) unnamed_addr #2 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 = { 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 = { 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 #4 = { 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 #5 = { "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 #6 = { 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}


; 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::__cxx11::basic_string" = type { %"struct.std::__cxx11::basic_string<char>::_Alloc_hider", i64, %union.anon }
%"struct.std::__cxx11::basic_string<char>::_Alloc_hider" = type { ptr }
%union.anon = type { i64, [8 x i8] }
%"class.std::__cxx11::match_results" = type { %"class.std::vector", %"class.__gnu_cxx::__normal_iterator" }
%"class.std::vector" = type { %"struct.std::_Vector_base" }
%"struct.std::_Vector_base" = type { %"struct.std::_Vector_base<std::__cxx11::sub_match<__gnu_cxx::__normal_iterator<const char *, std::__cxx11::basic_string<char>>>, std::allocator<std::__cxx11::sub_match<__gnu_cxx::__normal_iterator<const char *, std::__cxx11::basic_string<char>>>>>::_Vector_impl" }
%"struct.std::_Vector_base<std::__cxx11::sub_match<__gnu_cxx::__normal_iterator<const char *, std::__cxx11::basic_string<char>>>, std::allocator<std::__cxx11::sub_match<__gnu_cxx::__normal_iterator<const char *, std::__cxx11::basic_string<char>>>>>::_Vector_impl" = type { %"struct.std::_Vector_base<std::__cxx11::sub_match<__gnu_cxx::__normal_iterator<const char *, std::__cxx11::basic_string<char>>>, std::allocator<std::__cxx11::sub_match<__gnu_cxx::__normal_iterator<const char *, std::__cxx11::basic_string<char>>>>>::_Vector_impl_data" }
%"struct.std::_Vector_base<std::__cxx11::sub_match<__gnu_cxx::__normal_iterator<const char *, std::__cxx11::basic_string<char>>>, std::allocator<std::__cxx11::sub_match<__gnu_cxx::__normal_iterator<const char *, std::__cxx11::basic_string<char>>>>>::_Vector_impl_data" = type { ptr, ptr, ptr }
%"class.__gnu_cxx::__normal_iterator" = type { ptr }
%"class.__gnu_cxx::__normal_iterator.3" = type { ptr }

@.str = external hidden unnamed_addr constant [2 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 uwtable
define dso_local void @_ZN4chen5regex6expandERKNSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEEERKNS1_11basic_regexIcNS1_12regex_traitsIcEEEES8_(ptr dead_on_unwind noalias writable sret(%"class.std::__cxx11::basic_string") align 8 %0, ptr noundef nonnull align 8 dereferenceable(32) %1, ptr noundef nonnull align 8 dereferenceable(32) %2, ptr noundef nonnull align 8 dereferenceable(32) %3) local_unnamed_addr #1 align 2 personality ptr @__gxx_personality_v0 {
  %5 = alloca %"class.std::__cxx11::match_results", align 8
  %6 = alloca %"class.__gnu_cxx::__normal_iterator.3", align 8
  %7 = alloca %"class.__gnu_cxx::__normal_iterator.3", align 8
  %8 = alloca %"class.std::__cxx11::basic_string", align 8
  %9 = alloca %"class.std::__cxx11::basic_string", align 8
  %10 = alloca %"class.std::__cxx11::basic_string", align 8
  call void @llvm.lifetime.start.p0(i64 32, ptr nonnull %5) #6
  call void @_ZNSt7__cxx1113match_resultsIN9__gnu_cxx17__normal_iteratorIPKcNS_12basic_stringIcSt11char_traitsIcESaIcEEEEESaINS_9sub_matchISA_EEEEC2Ev(ptr noundef nonnull align 8 dereferenceable(32) %5)
  invoke void @_ZNSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEEC2ERKS4_(ptr noundef nonnull align 8 dereferenceable(32) %0, ptr noundef nonnull align 8 dereferenceable(32) %3)
          to label %11 unwind label %18

11:                                               ; preds = %4
  %12 = invoke noundef zeroext i1 @_ZSt12regex_searchISt11char_traitsIcESaIcESaINSt7__cxx119sub_matchIN9__gnu_cxx17__normal_iteratorIPKcNS3_12basic_stringIcS1_S2_EEEEEEEcNS3_12regex_traitsIcEEEbRKNS9_IT2_T_T0_EERNS3_13match_resultsINSJ_14const_iteratorET1_EERKNS3_11basic_regexISG_T3_EENSt15regex_constants15match_flag_typeE(ptr noundef nonnull align 8 dereferenceable(32) %1, ptr noundef nonnull align 8 dereferenceable(32) %5, ptr noundef nonnull align 8 dereferenceable(32) %2, i32 noundef 0)
          to label %13 unwind label %20

13:                                               ; preds = %11
  br i1 %12, label %14, label %43

14:                                               ; preds = %13
  call void @llvm.lifetime.start.p0(i64 8, ptr nonnull %6) #6
  %15 = call ptr @_ZNKSt7__cxx1113match_resultsIN9__gnu_cxx17__normal_iteratorIPKcNS_12basic_stringIcSt11char_traitsIcESaIcEEEEESaINS_9sub_matchISA_EEEE5beginEv(ptr noundef nonnull align 8 dereferenceable(32) %5) #6
  store ptr %15, ptr %6, align 8
  call void @llvm.lifetime.start.p0(i64 8, ptr nonnull %7) #6
  %16 = call ptr @_ZNKSt7__cxx1113match_resultsIN9__gnu_cxx17__normal_iteratorIPKcNS_12basic_stringIcSt11char_traitsIcESaIcEEEEESaINS_9sub_matchISA_EEEE3endEv(ptr noundef nonnull align 8 dereferenceable(32) %5) #6
  store ptr %16, ptr %7, align 8
  %17 = call noundef zeroext i1 @_ZN9__gnu_cxxneIPKNSt7__cxx119sub_matchINS_17__normal_iteratorIPKcNS1_12basic_stringIcSt11char_traitsIcESaIcEEEEEEESt6vectorISC_SaISC_EEEEbRKNS3_IT_T0_EESM_(ptr noundef nonnull align 8 dereferenceable(8) %6, ptr noundef nonnull align 8 dereferenceable(8) %7) #6
  br i1 %17, label %.lr.ph, label %._crit_edge

._crit_edge:                                      ; preds = %28, %14
  call void @llvm.lifetime.end.p0(i64 8, ptr nonnull %7) #6
  call void @llvm.lifetime.end.p0(i64 8, ptr nonnull %6) #6
  br label %43

18:                                               ; preds = %4
  %19 = landingpad { ptr, i32 }
          cleanup
  br label %44

20:                                               ; preds = %11
  %21 = landingpad { ptr, i32 }
          cleanup
  br label %42

.lr.ph:                                           ; preds = %14, %28
  %.0920 = phi i32 [ %23, %28 ], [ 0, %14 ]
  %22 = call noundef nonnull align 8 dereferenceable(17) ptr @_ZNK9__gnu_cxx17__normal_iteratorIPKNSt7__cxx119sub_matchINS0_IPKcNS1_12basic_stringIcSt11char_traitsIcESaIcEEEEEEESt6vectorISB_SaISB_EEEdeEv(ptr noundef nonnull align 8 dereferenceable(8) %6) #6
  call void @llvm.lifetime.start.p0(i64 32, ptr nonnull %8) #6
  call void @llvm.lifetime.start.p0(i64 32, ptr nonnull %9) #6
  %23 = add nuw nsw i32 %.0920, 1
  invoke void @_ZN4chen3num3strB5cxx11Ei(ptr dead_on_unwind nonnull writable sret(%"class.std::__cxx11::basic_string") align 8 %9, i32 noundef %.0920)
          to label %24 unwind label %31

24:                                               ; preds = %.lr.ph
  invoke void @_ZStplIcSt11char_traitsIcESaIcEENSt7__cxx1112basic_stringIT_T0_T1_EEPKS5_OS8_(ptr dead_on_unwind nonnull writable sret(%"class.std::__cxx11::basic_string") align 8 %8, ptr noundef nonnull @.str, ptr noundef nonnull align 8 dereferenceable(32) %9)
          to label %25 unwind label %33

25:                                               ; preds = %24
  call void @llvm.lifetime.start.p0(i64 32, ptr nonnull %10) #6
  invoke void @_ZNKSt7__cxx119sub_matchIN9__gnu_cxx17__normal_iteratorIPKcNS_12basic_stringIcSt11char_traitsIcESaIcEEEEEEcvS9_Ev(ptr dead_on_unwind nonnull writable sret(%"class.std::__cxx11::basic_string") align 8 %10, ptr noundef nonnull align 8 dereferenceable(17) %22)
          to label %26 unwind label %35

26:                                               ; preds = %25
  %27 = invoke noundef nonnull align 8 dereferenceable(32) ptr @_ZN4chen3str7replaceERNSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEEERKS6_S9_b(ptr noundef nonnull align 8 dereferenceable(32) %0, ptr noundef nonnull align 8 dereferenceable(32) %8, ptr noundef nonnull align 8 dereferenceable(32) %10, i1 noundef zeroext true)
          to label %28 unwind label %37

28:                                               ; preds = %26
  call void @_ZNSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEED2Ev(ptr noundef nonnull align 8 dereferenceable(32) %10) #6
  call void @llvm.lifetime.end.p0(i64 32, ptr nonnull %10) #6
  call void @_ZNSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEED2Ev(ptr noundef nonnull align 8 dereferenceable(32) %8) #6
  call void @_ZNSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEED2Ev(ptr noundef nonnull align 8 dereferenceable(32) %9) #6
  call void @llvm.lifetime.end.p0(i64 32, ptr nonnull %9) #6
  call void @llvm.lifetime.end.p0(i64 32, ptr nonnull %8) #6
  %29 = call noundef nonnull align 8 dereferenceable(8) ptr @_ZN9__gnu_cxx17__normal_iteratorIPKNSt7__cxx119sub_matchINS0_IPKcNS1_12basic_stringIcSt11char_traitsIcESaIcEEEEEEESt6vectorISB_SaISB_EEEppEv(ptr noundef nonnull align 8 dereferenceable(8) %6) #6
  %30 = call noundef zeroext i1 @_ZN9__gnu_cxxneIPKNSt7__cxx119sub_matchINS_17__normal_iteratorIPKcNS1_12basic_stringIcSt11char_traitsIcESaIcEEEEEEESt6vectorISC_SaISC_EEEEbRKNS3_IT_T0_EESM_(ptr noundef nonnull align 8 dereferenceable(8) %6, ptr noundef nonnull align 8 dereferenceable(8) %7) #6
  br i1 %30, label %.lr.ph, label %._crit_edge

31:                                               ; preds = %.lr.ph
  %32 = landingpad { ptr, i32 }
          cleanup
  br label %41

33:                                               ; preds = %24
  %34 = landingpad { ptr, i32 }
          cleanup
  br label %40

35:                                               ; preds = %25
  %36 = landingpad { ptr, i32 }
          cleanup
  br label %39

37:                                               ; preds = %26
  %38 = landingpad { ptr, i32 }
          cleanup
  call void @_ZNSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEED2Ev(ptr noundef nonnull align 8 dereferenceable(32) %10) #6
  br label %39

39:                                               ; preds = %37, %35
  %.pn = phi { ptr, i32 } [ %38, %37 ], [ %36, %35 ]
  call void @llvm.lifetime.end.p0(i64 32, ptr nonnull %10) #6
  call void @_ZNSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEED2Ev(ptr noundef nonnull align 8 dereferenceable(32) %8) #6
  br label %40

40:                                               ; preds = %39, %33
  %.pn.pn = phi { ptr, i32 } [ %.pn, %39 ], [ %34, %33 ]
  call void @_ZNSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEED2Ev(ptr noundef nonnull align 8 dereferenceable(32) %9) #6
  br label %41

41:                                               ; preds = %40, %31
  %.pn.pn.pn = phi { ptr, i32 } [ %.pn.pn, %40 ], [ %32, %31 ]
  call void @llvm.lifetime.end.p0(i64 32, ptr nonnull %9) #6
  call void @llvm.lifetime.end.p0(i64 32, ptr nonnull %8) #6
  call void @llvm.lifetime.end.p0(i64 8, ptr nonnull %7) #6
  call void @llvm.lifetime.end.p0(i64 8, ptr nonnull %6) #6
  br label %42

42:                                               ; preds = %41, %20
  %.pn.pn.pn.pn = phi { ptr, i32 } [ %.pn.pn.pn, %41 ], [ %21, %20 ]
  call void @_ZNSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEED2Ev(ptr noundef nonnull align 8 dereferenceable(32) %0) #6
  br label %44

43:                                               ; preds = %13, %._crit_edge
  call void @_ZNSt6vectorINSt7__cxx119sub_matchIN9__gnu_cxx17__normal_iteratorIPKcNS0_12basic_stringIcSt11char_traitsIcESaIcEEEEEEESaISC_EED2Ev(ptr noundef nonnull align 8 dereferenceable(32) %5) #6
  call void @llvm.lifetime.end.p0(i64 32, ptr nonnull %5) #6
  ret void

44:                                               ; preds = %42, %18
  %.pn.pn.pn.pn.pn = phi { ptr, i32 } [ %.pn.pn.pn.pn, %42 ], [ %19, %18 ]
  call void @_ZNSt6vectorINSt7__cxx119sub_matchIN9__gnu_cxx17__normal_iteratorIPKcNS0_12basic_stringIcSt11char_traitsIcESaIcEEEEEEESaISC_EED2Ev(ptr noundef nonnull align 8 dereferenceable(32) %5) #6
  call void @llvm.lifetime.end.p0(i64 32, ptr nonnull %5) #6
  resume { ptr, i32 } %.pn.pn.pn.pn.pn
}

; Function Attrs: mustprogress nounwind uwtable
declare dso_local void @_ZNSt7__cxx1113match_resultsIN9__gnu_cxx17__normal_iteratorIPKcNS_12basic_stringIcSt11char_traitsIcESaIcEEEEESaINS_9sub_matchISA_EEEEC2Ev(ptr noundef nonnull align 8 dereferenceable(32)) unnamed_addr #2 align 2

; Function Attrs: mustprogress uwtable
declare void @_ZNSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEEC2ERKS4_(ptr noundef nonnull align 8 dereferenceable(32), ptr noundef nonnull align 8 dereferenceable(32)) unnamed_addr #1 align 2

; Function Attrs: inlinehint mustprogress uwtable
declare dso_local noundef zeroext i1 @_ZSt12regex_searchISt11char_traitsIcESaIcESaINSt7__cxx119sub_matchIN9__gnu_cxx17__normal_iteratorIPKcNS3_12basic_stringIcS1_S2_EEEEEEEcNS3_12regex_traitsIcEEEbRKNS9_IT2_T_T0_EERNS3_13match_resultsINSJ_14const_iteratorET1_EERKNS3_11basic_regexISG_T3_EENSt15regex_constants15match_flag_typeE(ptr noundef nonnull align 8 dereferenceable(32), ptr noundef nonnull align 8 dereferenceable(32), ptr noundef nonnull align 8 dereferenceable(32), i32 noundef) local_unnamed_addr #3

; Function Attrs: mustprogress nounwind uwtable
declare dso_local ptr @_ZNKSt7__cxx1113match_resultsIN9__gnu_cxx17__normal_iteratorIPKcNS_12basic_stringIcSt11char_traitsIcESaIcEEEEESaINS_9sub_matchISA_EEEE5beginEv(ptr noundef nonnull align 8 dereferenceable(32)) local_unnamed_addr #2 align 2

; Function Attrs: mustprogress nounwind uwtable
declare dso_local ptr @_ZNKSt7__cxx1113match_resultsIN9__gnu_cxx17__normal_iteratorIPKcNS_12basic_stringIcSt11char_traitsIcESaIcEEEEESaINS_9sub_matchISA_EEEE3endEv(ptr noundef nonnull align 8 dereferenceable(32)) local_unnamed_addr #2 align 2

; Function Attrs: inlinehint mustprogress nounwind uwtable
declare dso_local noundef zeroext i1 @_ZN9__gnu_cxxneIPKNSt7__cxx119sub_matchINS_17__normal_iteratorIPKcNS1_12basic_stringIcSt11char_traitsIcESaIcEEEEEEESt6vectorISC_SaISC_EEEEbRKNS3_IT_T0_EESM_(ptr noundef nonnull align 8 dereferenceable(8), ptr noundef nonnull align 8 dereferenceable(8)) local_unnamed_addr #4

; Function Attrs: mustprogress nounwind uwtable
declare dso_local noundef nonnull align 8 dereferenceable(17) ptr @_ZNK9__gnu_cxx17__normal_iteratorIPKNSt7__cxx119sub_matchINS0_IPKcNS1_12basic_stringIcSt11char_traitsIcESaIcEEEEEEESt6vectorISB_SaISB_EEEdeEv(ptr noundef nonnull align 8 dereferenceable(8)) local_unnamed_addr #2 align 2

declare noundef nonnull align 8 dereferenceable(32) ptr @_ZN4chen3str7replaceERNSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEEERKS6_S9_b(ptr noundef nonnull align 8 dereferenceable(32), ptr noundef nonnull align 8 dereferenceable(32), ptr noundef nonnull align 8 dereferenceable(32), i1 noundef zeroext) local_unnamed_addr #5

; Function Attrs: inlinehint mustprogress uwtable
declare dso_local void @_ZStplIcSt11char_traitsIcESaIcEENSt7__cxx1112basic_stringIT_T0_T1_EEPKS5_OS8_(ptr dead_on_unwind noalias writable sret(%"class.std::__cxx11::basic_string") align 8, ptr noundef, ptr noundef nonnull align 8 dereferenceable(32)) local_unnamed_addr #3

declare void @_ZN4chen3num3strB5cxx11Ei(ptr dead_on_unwind writable sret(%"class.std::__cxx11::basic_string") align 8, i32 noundef) local_unnamed_addr #5

; Function Attrs: mustprogress uwtable
declare dso_local void @_ZNKSt7__cxx119sub_matchIN9__gnu_cxx17__normal_iteratorIPKcNS_12basic_stringIcSt11char_traitsIcESaIcEEEEEEcvS9_Ev(ptr dead_on_unwind noalias writable sret(%"class.std::__cxx11::basic_string") align 8, ptr noundef nonnull align 8 dereferenceable(17)) local_unnamed_addr #1 align 2

; Function Attrs: mustprogress nounwind uwtable
declare void @_ZNSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEED2Ev(ptr noundef nonnull align 8 dereferenceable(32)) unnamed_addr #2 align 2

; Function Attrs: mustprogress nounwind uwtable
declare dso_local noundef nonnull align 8 dereferenceable(8) ptr @_ZN9__gnu_cxx17__normal_iteratorIPKNSt7__cxx119sub_matchINS0_IPKcNS1_12basic_stringIcSt11char_traitsIcESaIcEEEEEEESt6vectorISB_SaISB_EEEppEv(ptr noundef nonnull align 8 dereferenceable(8)) local_unnamed_addr #2 align 2

; Function Attrs: mustprogress nounwind uwtable
declare dso_local void @_ZNSt6vectorINSt7__cxx119sub_matchIN9__gnu_cxx17__normal_iteratorIPKcNS0_12basic_stringIcSt11char_traitsIcESaIcEEEEEEESaISC_EED2Ev(ptr noundef nonnull align 8 dereferenceable(24)) unnamed_addr #2 align 2

attributes #0 = { mustprogress 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 = { 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 = { 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 #4 = { 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 #5 = { "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 #6 = { 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,GlobalOptPass,IPSCCPPass,InferFunctionAttrsPass,InstCombinePass,JumpThreadingPass,LoopRotatePass,LoopSimplifyPass,LoopUnrollPass,SROAPass,SimplifyCFGPass