; LLVM IR from chensoft/libsocket :: lib/libchen/src/data (ini)

; 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"

; Function Attrs: mustprogress uwtable
define dso_local noundef zeroext i1 @_ZN4chen3ini7advanceERKNS_8iterator7erasureISt18input_iterator_tagKhS4_PS4_lEERS6_S9_(ptr noundef nonnull align 8 dereferenceable(8) %0, ptr noundef nonnull align 8 dereferenceable(8) %1, ptr noundef nonnull align 8 dereferenceable(8) %2) #0 align 2 {
  %4 = alloca ptr, align 8
  %5 = alloca ptr, align 8
  %6 = alloca ptr, align 8
  store ptr %0, ptr %4, align 8, !tbaa !5
  store ptr %1, ptr %5, align 8, !tbaa !5
  store ptr %2, ptr %6, align 8, !tbaa !5
  br label %7

7:                                                ; preds = %19, %3
  %8 = load ptr, ptr %5, align 8, !tbaa !5
  %9 = load ptr, ptr %6, align 8, !tbaa !5
  %10 = call noundef zeroext i1 @_ZNK4chen8iterator7erasureISt18input_iterator_tagKhS3_PS3_lEneERKS5_(ptr noundef nonnull align 8 dereferenceable(8) %8, ptr noundef nonnull align 8 dereferenceable(8) %9)
  br i1 %10, label %11, label %17

11:                                               ; preds = %7
  %12 = load ptr, ptr %5, align 8, !tbaa !5
  %13 = call noundef zeroext i8 @_ZNK4chen8iterator7erasureISt18input_iterator_tagKhS3_PS3_lEdeEv(ptr noundef nonnull align 8 dereferenceable(8) %12)
  %14 = zext i8 %13 to i32
  %15 = call i32 @isspace(i32 noundef %14) #2
  %16 = icmp ne i32 %15, 0
  br label %17

17:                                               ; preds = %11, %7
  %18 = phi i1 [ false, %7 ], [ %16, %11 ]
  br i1 %18, label %19, label %22

19:                                               ; preds = %17
  %20 = load ptr, ptr %5, align 8, !tbaa !5
  %21 = call noundef nonnull align 8 dereferenceable(8) ptr @_ZN4chen8iterator7erasureISt18input_iterator_tagKhS3_PS3_lEppEv(ptr noundef nonnull align 8 dereferenceable(8) %20)
  br label %7, !llvm.loop !9

22:                                               ; preds = %17
  %23 = load ptr, ptr %5, align 8, !tbaa !5
  %24 = load ptr, ptr %6, align 8, !tbaa !5
  %25 = call noundef zeroext i1 @_ZNK4chen8iterator7erasureISt18input_iterator_tagKhS3_PS3_lEneERKS5_(ptr noundef nonnull align 8 dereferenceable(8) %23, ptr noundef nonnull align 8 dereferenceable(8) %24)
  ret i1 %25
}

; Function Attrs: mustprogress uwtable
declare dso_local noundef zeroext i1 @_ZNK4chen8iterator7erasureISt18input_iterator_tagKhS3_PS3_lEneERKS5_(ptr noundef nonnull align 8 dereferenceable(8), ptr noundef nonnull align 8 dereferenceable(8)) #0 align 2

; Function Attrs: mustprogress uwtable
declare dso_local noundef zeroext i8 @_ZNK4chen8iterator7erasureISt18input_iterator_tagKhS3_PS3_lEdeEv(ptr noundef nonnull align 8 dereferenceable(8)) #0 align 2

; Function Attrs: nounwind willreturn memory(read)
declare i32 @isspace(i32 noundef) #1

; Function Attrs: mustprogress uwtable
declare dso_local noundef nonnull align 8 dereferenceable(8) ptr @_ZN4chen8iterator7erasureISt18input_iterator_tagKhS3_PS3_lEppEv(ptr noundef nonnull align 8 dereferenceable(8)) #0 align 2

attributes #0 = { mustprogress uwtable "min-legal-vector-width"="0" "no-trapping-math"="true" "stack-protector-buffer-size"="8" "target-cpu"="x86-64" "target-features"="+cmov,+cx8,+fxsr,+mmx,+sse,+sse2,+x87" "tune-cpu"="generic" }
attributes #1 = { 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 #2 = { 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 = distinct !{!9, !10}
!10 = !{!"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"

; Function Attrs: mustprogress uwtable
define dso_local noundef zeroext i1 @_ZN4chen3ini7advanceERKNS_8iterator7erasureISt18input_iterator_tagKhS4_PS4_lEERS6_S9_(ptr nocapture noundef nonnull readnone align 8 dereferenceable(8) %0, ptr noundef nonnull align 8 dereferenceable(8) %1, ptr noundef nonnull align 8 dereferenceable(8) %2) local_unnamed_addr #0 align 2 {
  %4 = tail call noundef zeroext i1 @_ZNK4chen8iterator7erasureISt18input_iterator_tagKhS3_PS3_lEneERKS5_(ptr noundef nonnull align 8 dereferenceable(8) %1, ptr noundef nonnull align 8 dereferenceable(8) %2)
  br i1 %4, label %.lr.ph, label %.critedge

.lr.ph:                                           ; preds = %3, %8
  %5 = tail call noundef zeroext i8 @_ZNK4chen8iterator7erasureISt18input_iterator_tagKhS3_PS3_lEdeEv(ptr noundef nonnull align 8 dereferenceable(8) %1)
  %6 = zext i8 %5 to i32
  %7 = tail call i32 @isspace(i32 noundef %6) #2
  %.not = icmp eq i32 %7, 0
  br i1 %.not, label %.critedge, label %8

8:                                                ; preds = %.lr.ph
  %9 = tail call noundef nonnull align 8 dereferenceable(8) ptr @_ZN4chen8iterator7erasureISt18input_iterator_tagKhS3_PS3_lEppEv(ptr noundef nonnull align 8 dereferenceable(8) %1)
  %10 = tail call noundef zeroext i1 @_ZNK4chen8iterator7erasureISt18input_iterator_tagKhS3_PS3_lEneERKS5_(ptr noundef nonnull align 8 dereferenceable(8) %1, ptr noundef nonnull align 8 dereferenceable(8) %2)
  br i1 %10, label %.lr.ph, label %.critedge, !llvm.loop !5

.critedge:                                        ; preds = %.lr.ph, %8, %3
  %11 = tail call noundef zeroext i1 @_ZNK4chen8iterator7erasureISt18input_iterator_tagKhS3_PS3_lEneERKS5_(ptr noundef nonnull align 8 dereferenceable(8) %1, ptr noundef nonnull align 8 dereferenceable(8) %2)
  ret i1 %11
}

; Function Attrs: mustprogress uwtable
declare dso_local noundef zeroext i1 @_ZNK4chen8iterator7erasureISt18input_iterator_tagKhS3_PS3_lEneERKS5_(ptr noundef nonnull align 8 dereferenceable(8), ptr noundef nonnull align 8 dereferenceable(8)) local_unnamed_addr #0 align 2

; Function Attrs: mustprogress uwtable
declare dso_local noundef zeroext i8 @_ZNK4chen8iterator7erasureISt18input_iterator_tagKhS3_PS3_lEdeEv(ptr noundef nonnull align 8 dereferenceable(8)) local_unnamed_addr #0 align 2

; Function Attrs: mustprogress nofree nounwind willreturn memory(read)
declare i32 @isspace(i32 noundef) local_unnamed_addr #1

; Function Attrs: mustprogress uwtable
declare dso_local noundef nonnull align 8 dereferenceable(8) ptr @_ZN4chen8iterator7erasureISt18input_iterator_tagKhS3_PS3_lEppEv(ptr noundef nonnull align 8 dereferenceable(8)) local_unnamed_addr #0 align 2

attributes #0 = { mustprogress uwtable "min-legal-vector-width"="0" "no-trapping-math"="true" "stack-protector-buffer-size"="8" "target-cpu"="x86-64" "target-features"="+cmov,+cx8,+fxsr,+mmx,+sse,+sse2,+x87" "tune-cpu"="generic" }
attributes #1 = { mustprogress nofree 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 #2 = { 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 = distinct !{!5, !6}
!6 = !{!"llvm.loop.mustprogress"}


; Effective O3 passes: GlobalOptPass,InferFunctionAttrsPass,InstCombinePass,JumpThreadingPass,LoopRotatePass,LoopSimplifyPass,LoopUnrollPass,PostOrderFunctionAttrsPass,SROAPass,SimplifyCFGPass,TailCallElimPass