; LLVM IR from facebook/redex :: libredex (NativeNames)

; 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_string_view" = type { i64, ptr }

; Function Attrs: mustprogress uwtable
declare dso_local void @_ZN12native_names11escape_charERNSt7__cxx1119basic_ostringstreamIcSt11char_traitsIcESaIcEEEc(ptr noundef nonnull align 8 dereferenceable(112), i8 noundef signext) #0

; Function Attrs: mustprogress uwtable
define dso_local void @_ZN12native_names24escape_single_identifierERNSt7__cxx1119basic_ostringstreamIcSt11char_traitsIcESaIcEEESt17basic_string_viewIcS3_E(ptr noundef nonnull align 8 dereferenceable(112) %0, i64 %1, ptr %2) #0 {
  %4 = alloca %"class.std::basic_string_view", align 8
  %5 = alloca ptr, align 8
  %6 = alloca ptr, align 8
  %7 = alloca ptr, align 8
  %8 = alloca ptr, align 8
  %9 = alloca i8, align 1
  %10 = getelementptr inbounds { i64, ptr }, ptr %4, i32 0, i32 0
  store i64 %1, ptr %10, align 8
  %11 = getelementptr inbounds { i64, ptr }, ptr %4, i32 0, i32 1
  store ptr %2, ptr %11, align 8
  store ptr %0, ptr %5, align 8, !tbaa !5
  call void @llvm.lifetime.start.p0(i64 8, ptr %6) #3
  store ptr %4, ptr %6, align 8, !tbaa !5
  call void @llvm.lifetime.start.p0(i64 8, ptr %7) #3
  %12 = load ptr, ptr %6, align 8, !tbaa !5
  %13 = call noundef ptr @_ZNKSt17basic_string_viewIcSt11char_traitsIcEE5beginEv(ptr noundef nonnull align 8 dereferenceable(16) %12) #3
  store ptr %13, ptr %7, align 8, !tbaa !5
  call void @llvm.lifetime.start.p0(i64 8, ptr %8) #3
  %14 = load ptr, ptr %6, align 8, !tbaa !5
  %15 = call noundef ptr @_ZNKSt17basic_string_viewIcSt11char_traitsIcEE3endEv(ptr noundef nonnull align 8 dereferenceable(16) %14) #3
  store ptr %15, ptr %8, align 8, !tbaa !5
  br label %16

16:                                               ; preds = %26, %3
  %17 = load ptr, ptr %7, align 8, !tbaa !5
  %18 = load ptr, ptr %8, align 8, !tbaa !5
  %19 = icmp ne ptr %17, %18
  br i1 %19, label %21, label %20

20:                                               ; preds = %16
  call void @llvm.lifetime.end.p0(i64 8, ptr %8) #3
  call void @llvm.lifetime.end.p0(i64 8, ptr %7) #3
  call void @llvm.lifetime.end.p0(i64 8, ptr %6) #3
  br label %29

21:                                               ; preds = %16
  call void @llvm.lifetime.start.p0(i64 1, ptr %9) #3
  %22 = load ptr, ptr %7, align 8, !tbaa !5
  %23 = load i8, ptr %22, align 1, !tbaa !9
  store i8 %23, ptr %9, align 1, !tbaa !9
  %24 = load ptr, ptr %5, align 8, !tbaa !5
  %25 = load i8, ptr %9, align 1, !tbaa !9
  call void @_ZN12native_names11escape_charERNSt7__cxx1119basic_ostringstreamIcSt11char_traitsIcESaIcEEEc(ptr noundef nonnull align 8 dereferenceable(112) %24, i8 noundef signext %25)
  call void @llvm.lifetime.end.p0(i64 1, ptr %9) #3
  br label %26

26:                                               ; preds = %21
  %27 = load ptr, ptr %7, align 8, !tbaa !5
  %28 = getelementptr inbounds i8, ptr %27, i32 1
  store ptr %28, ptr %7, align 8, !tbaa !5
  br label %16

29:                                               ; preds = %20
  ret void
}

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

; Function Attrs: mustprogress nounwind uwtable
declare dso_local noundef ptr @_ZNKSt17basic_string_viewIcSt11char_traitsIcEE5beginEv(ptr noundef nonnull align 8 dereferenceable(16)) #2 align 2

; Function Attrs: mustprogress nounwind uwtable
declare dso_local noundef ptr @_ZNKSt17basic_string_viewIcSt11char_traitsIcEE3endEv(ptr noundef nonnull align 8 dereferenceable(16)) #2 align 2

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

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 = { nocallback nofree nosync nounwind willreturn memory(argmem: readwrite) }
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 = { 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 = !{!7, !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::basic_string_view" = type { i64, ptr }

; Function Attrs: mustprogress uwtable
declare dso_local void @_ZN12native_names11escape_charERNSt7__cxx1119basic_ostringstreamIcSt11char_traitsIcESaIcEEEc(ptr noundef nonnull align 8 dereferenceable(112), i8 noundef signext) local_unnamed_addr #0

; Function Attrs: mustprogress uwtable
define dso_local void @_ZN12native_names24escape_single_identifierERNSt7__cxx1119basic_ostringstreamIcSt11char_traitsIcESaIcEEESt17basic_string_viewIcS3_E(ptr noundef nonnull align 8 dereferenceable(112) %0, i64 %1, ptr %2) local_unnamed_addr #0 {
  %4 = alloca %"class.std::basic_string_view", align 8
  store i64 %1, ptr %4, align 8
  %5 = getelementptr inbounds i8, ptr %4, i64 8
  store ptr %2, ptr %5, align 8
  %6 = call noundef ptr @_ZNKSt17basic_string_viewIcSt11char_traitsIcEE5beginEv(ptr noundef nonnull align 8 dereferenceable(16) %4) #2
  %7 = call noundef ptr @_ZNKSt17basic_string_viewIcSt11char_traitsIcEE3endEv(ptr noundef nonnull align 8 dereferenceable(16) %4) #2
  %.not7 = icmp eq ptr %6, %7
  br i1 %.not7, label %._crit_edge, label %.lr.ph

._crit_edge:                                      ; preds = %.lr.ph, %3
  ret void

.lr.ph:                                           ; preds = %3, %.lr.ph
  %.08 = phi ptr [ %9, %.lr.ph ], [ %6, %3 ]
  %8 = load i8, ptr %.08, align 1, !tbaa !5
  call void @_ZN12native_names11escape_charERNSt7__cxx1119basic_ostringstreamIcSt11char_traitsIcESaIcEEEc(ptr noundef nonnull align 8 dereferenceable(112) %0, i8 noundef signext %8)
  %9 = getelementptr inbounds i8, ptr %.08, i64 1
  %.not = icmp eq ptr %9, %7
  br i1 %.not, label %._crit_edge, label %.lr.ph
}

; Function Attrs: mustprogress nounwind uwtable
declare dso_local noundef ptr @_ZNKSt17basic_string_viewIcSt11char_traitsIcEE5beginEv(ptr noundef nonnull align 8 dereferenceable(16)) local_unnamed_addr #1 align 2

; Function Attrs: mustprogress nounwind uwtable
declare dso_local noundef ptr @_ZNKSt17basic_string_viewIcSt11char_traitsIcEE3endEv(ptr noundef nonnull align 8 dereferenceable(16)) local_unnamed_addr #1 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 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 = { 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"}


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