; LLVM IR from buresjan/optim_lbm :: nomad/src/Util (utils)

; 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::allocator" = type { i8 }

@.str.32 = external hidden unnamed_addr constant [8 x i8], align 1
@.str.34 = 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

; Function Attrs: mustprogress nounwind uwtable
declare void @_ZNSaIcEC2Ev(ptr noundef nonnull align 1 dereferenceable(1)) unnamed_addr #1 align 2

; Function Attrs: mustprogress uwtable
declare dso_local void @_ZNSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEEC2IS3_EEPKcRKS3_(ptr noundef nonnull align 8 dereferenceable(32), ptr noundef, ptr noundef nonnull align 1 dereferenceable(1)) unnamed_addr #2 align 2

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 void @_ZNSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEED2Ev(ptr noundef nonnull align 8 dereferenceable(32)) unnamed_addr #1 align 2

; Function Attrs: nounwind willreturn memory(read)
declare i32 @isdigit(i32 noundef) #3

; Function Attrs: mustprogress nounwind uwtable
declare noundef nonnull align 1 dereferenceable(1) ptr @_ZNSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEEixEm(ptr noundef nonnull align 8 dereferenceable(32), i64 noundef) #1 align 2

; Function Attrs: mustprogress nounwind uwtable
declare noundef i64 @_ZNKSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEE13find_first_ofERKS4_m(ptr noundef nonnull align 8 dereferenceable(32), ptr noundef nonnull align 8 dereferenceable(32), i64 noundef) #1 align 2

; Function Attrs: mustprogress uwtable
define dso_local noundef zeroext i1 @_ZN9NOMAD_4_311validFormatERNSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEEE(ptr noundef nonnull align 8 dereferenceable(32) %0) #2 personality ptr @__gxx_personality_v0 {
  %2 = alloca ptr, align 8
  %3 = alloca %"class.std::__cxx11::basic_string", align 8
  %4 = alloca %"class.std::allocator", align 1
  %5 = alloca ptr, align 8
  %6 = alloca i32, align 4
  %7 = alloca i8, align 1
  %8 = alloca %"class.std::__cxx11::basic_string", align 8
  %9 = alloca i64, align 8
  %10 = alloca i8, align 1
  %11 = alloca i64, align 8
  store ptr %0, ptr %2, align 8, !tbaa !5
  call void @llvm.lifetime.start.p0(i64 32, ptr %3) #5
  call void @llvm.lifetime.start.p0(i64 1, ptr %4) #5
  call void @_ZNSaIcEC2Ev(ptr noundef nonnull align 1 dereferenceable(1) %4) #5
  invoke void @_ZNSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEEC2IS3_EEPKcRKS3_(ptr noundef nonnull align 8 dereferenceable(32) %3, ptr noundef @.str.32, ptr noundef nonnull align 1 dereferenceable(1) %4)
          to label %12 unwind label %17

12:                                               ; preds = %1
  call void @_ZNSt15__new_allocatorIcED2Ev(ptr noundef nonnull align 1 dereferenceable(1) %4) #5
  call void @llvm.lifetime.end.p0(i64 1, ptr %4) #5
  call void @llvm.lifetime.start.p0(i64 1, ptr %7) #5
  store i8 1, ptr %7, align 1, !tbaa !9
  %13 = load ptr, ptr %2, align 8, !tbaa !5
  %14 = call noundef i64 @_ZNKSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEE6lengthEv(ptr noundef nonnull align 8 dereferenceable(32) %13) #5
  %15 = icmp ult i64 %14, 2
  br i1 %15, label %16, label %21

16:                                               ; preds = %12
  store i8 0, ptr %7, align 1, !tbaa !9
  br label %115

17:                                               ; preds = %1
  %18 = landingpad { ptr, i32 }
          cleanup
  %19 = extractvalue { ptr, i32 } %18, 0
  store ptr %19, ptr %5, align 8
  %20 = extractvalue { ptr, i32 } %18, 1
  store i32 %20, ptr %6, align 4
  call void @_ZNSt15__new_allocatorIcED2Ev(ptr noundef nonnull align 1 dereferenceable(1) %4) #5
  call void @llvm.lifetime.end.p0(i64 1, ptr %4) #5
  br label %119

21:                                               ; preds = %12
  %22 = load ptr, ptr %2, align 8, !tbaa !5
  %23 = load ptr, ptr %2, align 8, !tbaa !5
  %24 = call noundef i64 @_ZNKSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEE6lengthEv(ptr noundef nonnull align 8 dereferenceable(32) %23) #5
  %25 = sub i64 %24, 1
  %26 = invoke noundef nonnull align 1 dereferenceable(1) ptr @_ZNSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEEixEm(ptr noundef nonnull align 8 dereferenceable(32) %22, i64 noundef %25)
          to label %27 unwind label %37

27:                                               ; preds = %21
  %28 = load i8, ptr %26, align 1, !tbaa !11
  %29 = sext i8 %28 to i32
  %30 = call i32 @isdigit(i32 noundef %29) #6
  %31 = icmp ne i32 %30, 0
  br i1 %31, label %32, label %45

32:                                               ; preds = %27
  call void @llvm.lifetime.start.p0(i64 32, ptr %8) #5
  %33 = load ptr, ptr %2, align 8, !tbaa !5
  invoke void @_ZStplIcSt11char_traitsIcESaIcEENSt7__cxx1112basic_stringIT_T0_T1_EERKS8_PKS5_(ptr dead_on_unwind writable sret(%"class.std::__cxx11::basic_string") align 8 %8, ptr noundef nonnull align 8 dereferenceable(32) %33, ptr noundef @.str.34)
          to label %34 unwind label %41

34:                                               ; preds = %32
  %35 = load ptr, ptr %2, align 8, !tbaa !5
  %36 = call noundef nonnull align 8 dereferenceable(32) ptr @_ZNSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEEaSEOS4_(ptr noundef nonnull align 8 dereferenceable(32) %35, ptr noundef nonnull align 8 dereferenceable(32) %8) #5
  call void @_ZNSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEED2Ev(ptr noundef nonnull align 8 dereferenceable(32) %8) #5
  call void @llvm.lifetime.end.p0(i64 32, ptr %8) #5
  br label %45

37:                                               ; preds = %21
  %38 = landingpad { ptr, i32 }
          cleanup
  %39 = extractvalue { ptr, i32 } %38, 0
  store ptr %39, ptr %5, align 8
  %40 = extractvalue { ptr, i32 } %38, 1
  store i32 %40, ptr %6, align 4
  br label %118

41:                                               ; preds = %32
  %42 = landingpad { ptr, i32 }
          cleanup
  %43 = extractvalue { ptr, i32 } %42, 0
  store ptr %43, ptr %5, align 8
  %44 = extractvalue { ptr, i32 } %42, 1
  store i32 %44, ptr %6, align 4
  call void @llvm.lifetime.end.p0(i64 32, ptr %8) #5
  br label %118

45:                                               ; preds = %34, %27
  call void @llvm.lifetime.start.p0(i64 8, ptr %9) #5
  %46 = load ptr, ptr %2, align 8, !tbaa !5
  %47 = call noundef i64 @_ZNKSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEE13find_first_ofERKS4_m(ptr noundef nonnull align 8 dereferenceable(32) %46, ptr noundef nonnull align 8 dereferenceable(32) %3, i64 noundef 1) #5
  store i64 %47, ptr %9, align 8, !tbaa !12
  %48 = load i64, ptr %9, align 8, !tbaa !12
  %49 = icmp eq i64 -1, %48
  br i1 %49, label %50, label %51

50:                                               ; preds = %45
  store i8 0, ptr %7, align 1, !tbaa !9
  br label %113

51:                                               ; preds = %45
  %52 = load ptr, ptr %2, align 8, !tbaa !5
  %53 = invoke noundef nonnull align 1 dereferenceable(1) ptr @_ZNSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEEixEm(ptr noundef nonnull align 8 dereferenceable(32) %52, i64 noundef 0)
          to label %54 unwind label %59

54:                                               ; preds = %51
  %55 = load i8, ptr %53, align 1, !tbaa !11
  %56 = sext i8 %55 to i32
  %57 = icmp ne i32 %56, 37
  br i1 %57, label %58, label %63

58:                                               ; preds = %54
  store i8 0, ptr %7, align 1, !tbaa !9
  br label %112

59:                                               ; preds = %51
  %60 = landingpad { ptr, i32 }
          cleanup
  %61 = extractvalue { ptr, i32 } %60, 0
  store ptr %61, ptr %5, align 8
  %62 = extractvalue { ptr, i32 } %60, 1
  store i32 %62, ptr %6, align 4
  br label %114

63:                                               ; preds = %54
  %64 = load i64, ptr %9, align 8, !tbaa !12
  %65 = load ptr, ptr %2, align 8, !tbaa !5
  %66 = call noundef i64 @_ZNKSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEE6lengthEv(ptr noundef nonnull align 8 dereferenceable(32) %65) #5
  %67 = sub i64 %66, 1
  %68 = icmp ult i64 %64, %67
  br i1 %68, label %69, label %70

69:                                               ; preds = %63
  store i8 0, ptr %7, align 1, !tbaa !9
  br label %111

70:                                               ; preds = %63
  call void @llvm.lifetime.start.p0(i64 1, ptr %10) #5
  store i8 0, ptr %10, align 1, !tbaa !9
  call void @llvm.lifetime.start.p0(i64 8, ptr %11) #5
  store i64 1, ptr %11, align 8, !tbaa !12
  br label %71

71:                                               ; preds = %107, %70
  %72 = load i64, ptr %11, align 8, !tbaa !12
  %73 = load i64, ptr %9, align 8, !tbaa !12
  %74 = icmp ult i64 %72, %73
  br i1 %74, label %76, label %75

75:                                               ; preds = %71
  call void @llvm.lifetime.end.p0(i64 8, ptr %11) #5
  br label %110

76:                                               ; preds = %71
  %77 = load ptr, ptr %2, align 8, !tbaa !5
  %78 = load i64, ptr %11, align 8, !tbaa !12
  %79 = invoke noundef nonnull align 1 dereferenceable(1) ptr @_ZNSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEEixEm(ptr noundef nonnull align 8 dereferenceable(32) %77, i64 noundef %78)
          to label %80 unwind label %86

80:                                               ; preds = %76
  %81 = load i8, ptr %79, align 1, !tbaa !11
  %82 = sext i8 %81 to i32
  %83 = call i32 @isdigit(i32 noundef %82) #6
  %84 = icmp ne i32 %83, 0
  br i1 %84, label %85, label %90

85:                                               ; preds = %80
  br label %106

86:                                               ; preds = %90, %76
  %87 = landingpad { ptr, i32 }
          cleanup
  %88 = extractvalue { ptr, i32 } %87, 0
  store ptr %88, ptr %5, align 8
  %89 = extractvalue { ptr, i32 } %87, 1
  store i32 %89, ptr %6, align 4
  call void @llvm.lifetime.end.p0(i64 8, ptr %11) #5
  call void @llvm.lifetime.end.p0(i64 1, ptr %10) #5
  br label %114

90:                                               ; preds = %80
  %91 = load ptr, ptr %2, align 8, !tbaa !5
  %92 = load i64, ptr %11, align 8, !tbaa !12
  %93 = invoke noundef nonnull align 1 dereferenceable(1) ptr @_ZNSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEEixEm(ptr noundef nonnull align 8 dereferenceable(32) %91, i64 noundef %92)
          to label %94 unwind label %86

94:                                               ; preds = %90
  %95 = load i8, ptr %93, align 1, !tbaa !11
  %96 = sext i8 %95 to i32
  %97 = icmp eq i32 %96, 46
  br i1 %97, label %98, label %104

98:                                               ; preds = %94
  %99 = load i8, ptr %10, align 1, !tbaa !9, !range !14, !noundef !15
  %100 = trunc i8 %99 to i1
  br i1 %100, label %102, label %101

101:                                              ; preds = %98
  store i8 1, ptr %10, align 1, !tbaa !9
  br label %103

102:                                              ; preds = %98
  store i8 0, ptr %7, align 1, !tbaa !9
  br label %103

103:                                              ; preds = %102, %101
  br label %105

104:                                              ; preds = %94
  store i8 0, ptr %7, align 1, !tbaa !9
  br label %105

105:                                              ; preds = %104, %103
  br label %106

106:                                              ; preds = %105, %85
  br label %107

107:                                              ; preds = %106
  %108 = load i64, ptr %11, align 8, !tbaa !12
  %109 = add i64 %108, 1
  store i64 %109, ptr %11, align 8, !tbaa !12
  br label %71, !llvm.loop !16

110:                                              ; preds = %75
  call void @llvm.lifetime.end.p0(i64 1, ptr %10) #5
  br label %111

111:                                              ; preds = %110, %69
  br label %112

112:                                              ; preds = %111, %58
  br label %113

113:                                              ; preds = %112, %50
  call void @llvm.lifetime.end.p0(i64 8, ptr %9) #5
  br label %115

114:                                              ; preds = %86, %59
  call void @llvm.lifetime.end.p0(i64 8, ptr %9) #5
  br label %118

115:                                              ; preds = %113, %16
  %116 = load i8, ptr %7, align 1, !tbaa !9, !range !14, !noundef !15
  %117 = trunc i8 %116 to i1
  call void @llvm.lifetime.end.p0(i64 1, ptr %7) #5
  call void @_ZNSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEED2Ev(ptr noundef nonnull align 8 dereferenceable(32) %3) #5
  call void @llvm.lifetime.end.p0(i64 32, ptr %3) #5
  ret i1 %117

118:                                              ; preds = %114, %41, %37
  call void @llvm.lifetime.end.p0(i64 1, ptr %7) #5
  call void @_ZNSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEED2Ev(ptr noundef nonnull align 8 dereferenceable(32) %3) #5
  br label %119

119:                                              ; preds = %118, %17
  call void @llvm.lifetime.end.p0(i64 32, ptr %3) #5
  br label %120

120:                                              ; preds = %119
  %121 = load ptr, ptr %5, align 8
  %122 = load i32, ptr %6, align 4
  %123 = insertvalue { ptr, i32 } poison, ptr %121, 0
  %124 = insertvalue { ptr, i32 } %123, i32 %122, 1
  resume { ptr, i32 } %124
}

; Function Attrs: mustprogress nounwind uwtable
declare noundef i64 @_ZNKSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEE6lengthEv(ptr noundef nonnull align 8 dereferenceable(32)) #1 align 2

; Function Attrs: mustprogress nounwind uwtable
declare noundef nonnull align 8 dereferenceable(32) ptr @_ZNSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEEaSEOS4_(ptr noundef nonnull align 8 dereferenceable(32), ptr noundef nonnull align 8 dereferenceable(32)) #1 align 2

; Function Attrs: inlinehint mustprogress uwtable
declare dso_local void @_ZStplIcSt11char_traitsIcESaIcEENSt7__cxx1112basic_stringIT_T0_T1_EERKS8_PKS5_(ptr dead_on_unwind noalias writable sret(%"class.std::__cxx11::basic_string") align 8, ptr noundef nonnull align 8 dereferenceable(32), ptr noundef) #4

; Function Attrs: mustprogress nounwind uwtable
declare dso_local void @_ZNSt15__new_allocatorIcED2Ev(ptr noundef nonnull align 1 dereferenceable(1)) unnamed_addr #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 = { 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 willreturn memory(read) "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 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 }
attributes #6 = { nounwind willreturn memory(read) }

!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 = !{!"bool", !7, i64 0}
!11 = !{!7, !7, i64 0}
!12 = !{!13, !13, i64 0}
!13 = !{!"long", !7, i64 0}
!14 = !{i8 0, i8 2}
!15 = !{}
!16 = distinct !{!16, !17}
!17 = !{!"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::__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::allocator" = type { i8 }

@.str.32 = external hidden unnamed_addr constant [8 x i8], align 1
@.str.34 = 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

; Function Attrs: mustprogress nounwind uwtable
declare void @_ZNSaIcEC2Ev(ptr noundef nonnull align 1 dereferenceable(1)) unnamed_addr #1 align 2

; Function Attrs: mustprogress uwtable
declare dso_local void @_ZNSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEEC2IS3_EEPKcRKS3_(ptr noundef nonnull align 8 dereferenceable(32), ptr noundef, ptr noundef nonnull align 1 dereferenceable(1)) unnamed_addr #2 align 2

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 void @_ZNSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEED2Ev(ptr noundef nonnull align 8 dereferenceable(32)) unnamed_addr #1 align 2

; Function Attrs: mustprogress nounwind uwtable
declare noundef nonnull align 1 dereferenceable(1) ptr @_ZNSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEEixEm(ptr noundef nonnull align 8 dereferenceable(32), i64 noundef) local_unnamed_addr #1 align 2

; Function Attrs: mustprogress nounwind uwtable
declare noundef i64 @_ZNKSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEE13find_first_ofERKS4_m(ptr noundef nonnull align 8 dereferenceable(32), ptr noundef nonnull align 8 dereferenceable(32), i64 noundef) local_unnamed_addr #1 align 2

; Function Attrs: mustprogress uwtable
define dso_local noundef zeroext i1 @_ZN9NOMAD_4_311validFormatERNSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEEE(ptr noundef nonnull align 8 dereferenceable(32) %0) local_unnamed_addr #2 personality ptr @__gxx_personality_v0 {
  %2 = alloca %"class.std::__cxx11::basic_string", align 8
  %3 = alloca %"class.std::allocator", align 1
  %4 = alloca %"class.std::__cxx11::basic_string", align 8
  call void @llvm.lifetime.start.p0(i64 32, ptr nonnull %2) #4
  call void @llvm.lifetime.start.p0(i64 1, ptr nonnull %3) #4
  call void @_ZNSaIcEC2Ev(ptr noundef nonnull align 1 dereferenceable(1) %3) #4
  invoke void @_ZNSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEEC2IS3_EEPKcRKS3_(ptr noundef nonnull align 8 dereferenceable(32) %2, ptr noundef nonnull @.str.32, ptr noundef nonnull align 1 dereferenceable(1) %3)
          to label %5 unwind label %8

5:                                                ; preds = %1
  call void @_ZNSt15__new_allocatorIcED2Ev(ptr noundef nonnull align 1 dereferenceable(1) %3) #4
  call void @llvm.lifetime.end.p0(i64 1, ptr nonnull %3) #4
  %6 = call noundef i64 @_ZNKSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEE6lengthEv(ptr noundef nonnull align 8 dereferenceable(32) %0) #4
  %7 = icmp ult i64 %6, 2
  br i1 %7, label %.loopexit, label %10

8:                                                ; preds = %1
  %9 = landingpad { ptr, i32 }
          cleanup
  call void @_ZNSt15__new_allocatorIcED2Ev(ptr noundef nonnull align 1 dereferenceable(1) %3) #4
  call void @llvm.lifetime.end.p0(i64 1, ptr nonnull %3) #4
  br label %42

10:                                               ; preds = %5
  %11 = call noundef i64 @_ZNKSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEE6lengthEv(ptr noundef nonnull align 8 dereferenceable(32) %0) #4
  %12 = add i64 %11, -1
  %13 = call noundef nonnull align 1 dereferenceable(1) ptr @_ZNSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEEixEm(ptr noundef nonnull align 8 dereferenceable(32) %0, i64 noundef %12)
  %14 = load i8, ptr %13, align 1, !tbaa !5
  %15 = sext i8 %14 to i32
  %isdigittmp = add nsw i32 %15, -48
  %isdigit = icmp ult i32 %isdigittmp, 10
  br i1 %isdigit, label %16, label %21

16:                                               ; preds = %10
  call void @llvm.lifetime.start.p0(i64 32, ptr nonnull %4) #4
  invoke void @_ZStplIcSt11char_traitsIcESaIcEENSt7__cxx1112basic_stringIT_T0_T1_EERKS8_PKS5_(ptr dead_on_unwind nonnull writable sret(%"class.std::__cxx11::basic_string") align 8 %4, ptr noundef nonnull align 8 dereferenceable(32) %0, ptr noundef nonnull @.str.34)
          to label %17 unwind label %19

17:                                               ; preds = %16
  %18 = call noundef nonnull align 8 dereferenceable(32) ptr @_ZNSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEEaSEOS4_(ptr noundef nonnull align 8 dereferenceable(32) %0, ptr noundef nonnull align 8 dereferenceable(32) %4) #4
  call void @_ZNSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEED2Ev(ptr noundef nonnull align 8 dereferenceable(32) %4) #4
  call void @llvm.lifetime.end.p0(i64 32, ptr nonnull %4) #4
  br label %21

19:                                               ; preds = %16
  %20 = landingpad { ptr, i32 }
          cleanup
  call void @llvm.lifetime.end.p0(i64 32, ptr nonnull %4) #4
  call void @_ZNSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEED2Ev(ptr noundef nonnull align 8 dereferenceable(32) %2) #4
  br label %42

21:                                               ; preds = %17, %10
  %22 = call noundef i64 @_ZNKSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEE13find_first_ofERKS4_m(ptr noundef nonnull align 8 dereferenceable(32) %0, ptr noundef nonnull align 8 dereferenceable(32) %2, i64 noundef 1) #4
  %23 = icmp eq i64 %22, -1
  br i1 %23, label %.loopexit, label %24

24:                                               ; preds = %21
  %25 = call noundef nonnull align 1 dereferenceable(1) ptr @_ZNSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEEixEm(ptr noundef nonnull align 8 dereferenceable(32) %0, i64 noundef 0)
  %26 = load i8, ptr %25, align 1, !tbaa !5
  %.not = icmp eq i8 %26, 37
  br i1 %.not, label %27, label %.loopexit

27:                                               ; preds = %24
  %28 = call noundef i64 @_ZNKSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEE6lengthEv(ptr noundef nonnull align 8 dereferenceable(32) %0) #4
  %29 = add i64 %28, -1
  %30 = icmp ult i64 %22, %29
  br i1 %30, label %.loopexit, label %.preheader

.preheader:                                       ; preds = %27
  %31 = icmp ugt i64 %22, 1
  br i1 %31, label %.lr.ph, label %.loopexit

.lr.ph:                                           ; preds = %.preheader, %40
  %.031 = phi i64 [ %41, %40 ], [ 1, %.preheader ]
  %.02030 = phi i1 [ %.1, %40 ], [ false, %.preheader ]
  %.02229 = phi i1 [ %.123, %40 ], [ true, %.preheader ]
  %32 = call noundef nonnull align 1 dereferenceable(1) ptr @_ZNSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEEixEm(ptr noundef nonnull align 8 dereferenceable(32) %0, i64 noundef %.031)
  %33 = load i8, ptr %32, align 1, !tbaa !5
  %34 = sext i8 %33 to i32
  %isdigittmp27 = add nsw i32 %34, -48
  %isdigit28 = icmp ult i32 %isdigittmp27, 10
  br i1 %isdigit28, label %40, label %35

35:                                               ; preds = %.lr.ph
  %36 = call noundef nonnull align 1 dereferenceable(1) ptr @_ZNSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEEixEm(ptr noundef nonnull align 8 dereferenceable(32) %0, i64 noundef %.031)
  %37 = load i8, ptr %36, align 1, !tbaa !5
  %38 = icmp eq i8 %37, 46
  %not..02030 = xor i1 %.02030, true
  %39 = select i1 %38, i1 %not..02030, i1 false
  %spec.select = select i1 %39, i1 %.02229, i1 false
  %spec.select32 = select i1 %38, i1 true, i1 %.02030
  br label %40

40:                                               ; preds = %35, %.lr.ph
  %.123 = phi i1 [ %.02229, %.lr.ph ], [ %spec.select, %35 ]
  %.1 = phi i1 [ %.02030, %.lr.ph ], [ %spec.select32, %35 ]
  %41 = add nuw i64 %.031, 1
  %exitcond.not = icmp eq i64 %41, %22
  br i1 %exitcond.not, label %.loopexit, label %.lr.ph, !llvm.loop !8

.loopexit:                                        ; preds = %40, %.preheader, %21, %24, %27, %5
  %.3 = phi i1 [ false, %5 ], [ false, %21 ], [ false, %24 ], [ false, %27 ], [ true, %.preheader ], [ %.123, %40 ]
  call void @_ZNSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEED2Ev(ptr noundef nonnull align 8 dereferenceable(32) %2) #4
  call void @llvm.lifetime.end.p0(i64 32, ptr nonnull %2) #4
  ret i1 %.3

42:                                               ; preds = %19, %8
  %.pn = phi { ptr, i32 } [ %20, %19 ], [ %9, %8 ]
  call void @llvm.lifetime.end.p0(i64 32, ptr nonnull %2) #4
  resume { ptr, i32 } %.pn
}

; Function Attrs: mustprogress nounwind uwtable
declare noundef i64 @_ZNKSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEE6lengthEv(ptr noundef nonnull align 8 dereferenceable(32)) local_unnamed_addr #1 align 2

; Function Attrs: mustprogress nounwind uwtable
declare noundef nonnull align 8 dereferenceable(32) ptr @_ZNSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEEaSEOS4_(ptr noundef nonnull align 8 dereferenceable(32), ptr noundef nonnull align 8 dereferenceable(32)) local_unnamed_addr #1 align 2

; Function Attrs: inlinehint mustprogress uwtable
declare dso_local void @_ZStplIcSt11char_traitsIcESaIcEENSt7__cxx1112basic_stringIT_T0_T1_EERKS8_PKS5_(ptr dead_on_unwind noalias writable sret(%"class.std::__cxx11::basic_string") align 8, ptr noundef nonnull align 8 dereferenceable(32), ptr noundef) local_unnamed_addr #3

; Function Attrs: mustprogress nounwind uwtable
declare dso_local void @_ZNSt15__new_allocatorIcED2Ev(ptr noundef nonnull align 1 dereferenceable(1)) 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 = { 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 = { 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 = { 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 = !{!"omnipotent char", !7, i64 0}
!7 = !{!"Simple C++ TBAA"}
!8 = distinct !{!8, !9}
!9 = !{!"llvm.loop.mustprogress"}


; Effective O3 passes: AggressiveInstCombinePass,GVNPass,GlobalOptPass,IPSCCPPass,IndVarSimplifyPass,InferFunctionAttrsPass,InstCombinePass,InstSimplifyPass,JumpThreadingPass,LCSSAPass,LoopInstSimplifyPass,LoopRotatePass,LoopSimplifyPass,LoopUnrollPass,SROAPass,SimplifyCFGPass