; LLVM IR from MikeMirzayanov/testlib :: checkers/acmp.ll (ZN8InStream7ensurefEbPKcz)

; 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 }
%struct.__va_list_tag = type { i32, i32, ptr, ptr }

@_ZL35__testlib_format_buffer_usage_count = external hidden global i32, align 4
@.str.158 = external hidden unnamed_addr constant [56 x i8], align 1
@_ZL23__testlib_format_buffer = external hidden global [16777216 x i8], align 16

; 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 #0 align 2

; 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 void @_ZNSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEEC2Ev(ptr noundef nonnull align 8 dereferenceable(32)) 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) #1

; 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 noreturn uwtable
declare hidden void @_ZL14__testlib_failRKNSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEEE(ptr noundef nonnull align 8 dereferenceable(32)) #3

; Function Attrs: mustprogress nounwind uwtable
declare void @_ZNSaIcEC2Ev(ptr noundef nonnull align 1 dereferenceable(1)) unnamed_addr #2 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 #0 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)) #2 align 2

; Function Attrs: nocallback nofree nosync nounwind willreturn
declare void @llvm.va_start.p0(ptr) #4

; Function Attrs: nounwind
declare i32 @vsnprintf(ptr noundef, i64 noundef, ptr noundef, ptr noundef) #5

; Function Attrs: nocallback nofree nosync nounwind willreturn
declare void @llvm.va_end.p0(ptr) #4

; Function Attrs: mustprogress uwtable
define dso_local void @_ZN8InStream7ensurefEbPKcz(ptr noundef nonnull align 8 dereferenceable(128) %0, i1 noundef zeroext %1, ptr noundef %2, ...) #0 align 2 personality ptr @__gxx_personality_v0 {
  %4 = alloca ptr, align 8
  %5 = alloca i8, align 1
  %6 = alloca ptr, align 8
  %7 = alloca %"class.std::__cxx11::basic_string", align 8
  %8 = alloca %"class.std::__cxx11::basic_string", align 8
  %9 = alloca %"class.std::allocator", align 1
  %10 = alloca ptr, align 8
  %11 = alloca i32, align 4
  %12 = alloca [1 x %struct.__va_list_tag], align 16
  %13 = alloca %"class.std::__cxx11::basic_string", align 8
  %14 = alloca %"class.std::allocator", align 1
  %15 = alloca %"class.std::__cxx11::basic_string", align 8
  store ptr %0, ptr %4, align 8, !tbaa !5
  %16 = zext i1 %1 to i8
  store i8 %16, ptr %5, align 1, !tbaa !9
  store ptr %2, ptr %6, align 8, !tbaa !5
  %17 = load ptr, ptr %4, align 8
  %18 = load i8, ptr %5, align 1, !tbaa !9, !range !11, !noundef !12
  %19 = trunc i8 %18 to i1
  br i1 %19, label %65, label %20

20:                                               ; preds = %3
  call void @llvm.lifetime.start.p0(i64 32, ptr %7) #6
  call void @_ZNSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEEC2Ev(ptr noundef nonnull align 8 dereferenceable(32) %7) #6
  %21 = load i32, ptr @_ZL35__testlib_format_buffer_usage_count, align 4, !tbaa !13
  %22 = icmp ne i32 %21, 0
  br i1 %22, label %23, label %35

23:                                               ; preds = %20
  call void @llvm.lifetime.start.p0(i64 32, ptr %8) #6
  call void @llvm.lifetime.start.p0(i64 1, ptr %9) #6
  call void @_ZNSaIcEC2Ev(ptr noundef nonnull align 1 dereferenceable(1) %9) #6
  invoke void @_ZNSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEEC2IS3_EEPKcRKS3_(ptr noundef nonnull align 8 dereferenceable(32) %8, ptr noundef @.str.158, ptr noundef nonnull align 1 dereferenceable(1) %9)
          to label %24 unwind label %26

24:                                               ; preds = %23
  invoke void @_ZL14__testlib_failRKNSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEEE(ptr noundef nonnull align 8 dereferenceable(32) %8) #7
          to label %25 unwind label %30

25:                                               ; preds = %24
  unreachable

26:                                               ; preds = %23
  %27 = landingpad { ptr, i32 }
          cleanup
  %28 = extractvalue { ptr, i32 } %27, 0
  store ptr %28, ptr %10, align 8
  %29 = extractvalue { ptr, i32 } %27, 1
  store i32 %29, ptr %11, align 4
  br label %34

30:                                               ; preds = %24
  %31 = landingpad { ptr, i32 }
          cleanup
  %32 = extractvalue { ptr, i32 } %31, 0
  store ptr %32, ptr %10, align 8
  %33 = extractvalue { ptr, i32 } %31, 1
  store i32 %33, ptr %11, align 4
  call void @_ZNSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEED2Ev(ptr noundef nonnull align 8 dereferenceable(32) %8) #6
  br label %34

34:                                               ; preds = %30, %26
  call void @_ZNSt15__new_allocatorIcED2Ev(ptr noundef nonnull align 1 dereferenceable(1) %9) #6
  call void @llvm.lifetime.end.p0(i64 1, ptr %9) #6
  call void @llvm.lifetime.end.p0(i64 32, ptr %8) #6
  br label %64

35:                                               ; preds = %20
  %36 = load i32, ptr @_ZL35__testlib_format_buffer_usage_count, align 4, !tbaa !13
  %37 = add nsw i32 %36, 1
  store i32 %37, ptr @_ZL35__testlib_format_buffer_usage_count, align 4, !tbaa !13
  call void @llvm.lifetime.start.p0(i64 24, ptr %12) #6
  %38 = getelementptr inbounds [1 x %struct.__va_list_tag], ptr %12, i64 0, i64 0
  call void @llvm.va_start.p0(ptr %38)
  %39 = load ptr, ptr %6, align 8, !tbaa !5
  %40 = getelementptr inbounds [1 x %struct.__va_list_tag], ptr %12, i64 0, i64 0
  %41 = call i32 @vsnprintf(ptr noundef @_ZL23__testlib_format_buffer, i64 noundef 16777216, ptr noundef %39, ptr noundef %40) #6
  %42 = getelementptr inbounds [1 x %struct.__va_list_tag], ptr %12, i64 0, i64 0
  call void @llvm.va_end.p0(ptr %42)
  store i8 0, ptr getelementptr inbounds ([16777216 x i8], ptr @_ZL23__testlib_format_buffer, i64 0, i64 16777215), align 1, !tbaa !15
  call void @llvm.lifetime.start.p0(i64 32, ptr %13) #6
  call void @llvm.lifetime.start.p0(i64 1, ptr %14) #6
  call void @_ZNSaIcEC2Ev(ptr noundef nonnull align 1 dereferenceable(1) %14) #6
  invoke void @_ZNSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEEC2IS3_EEPKcRKS3_(ptr noundef nonnull align 8 dereferenceable(32) %13, ptr noundef @_ZL23__testlib_format_buffer, ptr noundef nonnull align 1 dereferenceable(1) %14)
          to label %43 unwind label %51

43:                                               ; preds = %35
  %44 = call noundef nonnull align 8 dereferenceable(32) ptr @_ZNSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEEaSEOS4_(ptr noundef nonnull align 8 dereferenceable(32) %7, ptr noundef nonnull align 8 dereferenceable(32) %13) #6
  call void @_ZNSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEED2Ev(ptr noundef nonnull align 8 dereferenceable(32) %13) #6
  call void @_ZNSt15__new_allocatorIcED2Ev(ptr noundef nonnull align 1 dereferenceable(1) %14) #6
  call void @llvm.lifetime.end.p0(i64 1, ptr %14) #6
  call void @llvm.lifetime.end.p0(i64 32, ptr %13) #6
  %45 = load i32, ptr @_ZL35__testlib_format_buffer_usage_count, align 4, !tbaa !13
  %46 = add nsw i32 %45, -1
  store i32 %46, ptr @_ZL35__testlib_format_buffer_usage_count, align 4, !tbaa !13
  %47 = load i8, ptr %5, align 1, !tbaa !9, !range !11, !noundef !12
  %48 = trunc i8 %47 to i1
  invoke void @_ZNSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEEC2ERKS4_(ptr noundef nonnull align 8 dereferenceable(32) %15, ptr noundef nonnull align 8 dereferenceable(32) %7)
          to label %49 unwind label %55

49:                                               ; preds = %43
  invoke void @_ZN8InStream16__testlib_ensureEbNSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEEE(ptr noundef nonnull align 8 dereferenceable(128) %17, i1 noundef zeroext %48, ptr noundef %15)
          to label %50 unwind label %59

50:                                               ; preds = %49
  call void @_ZNSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEED2Ev(ptr noundef nonnull align 8 dereferenceable(32) %15) #6
  call void @llvm.lifetime.end.p0(i64 24, ptr %12) #6
  call void @_ZNSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEED2Ev(ptr noundef nonnull align 8 dereferenceable(32) %7) #6
  call void @llvm.lifetime.end.p0(i64 32, ptr %7) #6
  br label %65

51:                                               ; preds = %35
  %52 = landingpad { ptr, i32 }
          cleanup
  %53 = extractvalue { ptr, i32 } %52, 0
  store ptr %53, ptr %10, align 8
  %54 = extractvalue { ptr, i32 } %52, 1
  store i32 %54, ptr %11, align 4
  call void @_ZNSt15__new_allocatorIcED2Ev(ptr noundef nonnull align 1 dereferenceable(1) %14) #6
  call void @llvm.lifetime.end.p0(i64 1, ptr %14) #6
  call void @llvm.lifetime.end.p0(i64 32, ptr %13) #6
  br label %63

55:                                               ; preds = %43
  %56 = landingpad { ptr, i32 }
          cleanup
  %57 = extractvalue { ptr, i32 } %56, 0
  store ptr %57, ptr %10, align 8
  %58 = extractvalue { ptr, i32 } %56, 1
  store i32 %58, ptr %11, align 4
  br label %63

59:                                               ; preds = %49
  %60 = landingpad { ptr, i32 }
          cleanup
  %61 = extractvalue { ptr, i32 } %60, 0
  store ptr %61, ptr %10, align 8
  %62 = extractvalue { ptr, i32 } %60, 1
  store i32 %62, ptr %11, align 4
  call void @_ZNSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEED2Ev(ptr noundef nonnull align 8 dereferenceable(32) %15) #6
  br label %63

63:                                               ; preds = %59, %55, %51
  call void @llvm.lifetime.end.p0(i64 24, ptr %12) #6
  br label %64

64:                                               ; preds = %63, %34
  call void @_ZNSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEED2Ev(ptr noundef nonnull align 8 dereferenceable(32) %7) #6
  call void @llvm.lifetime.end.p0(i64 32, ptr %7) #6
  br label %66

65:                                               ; preds = %50, %3
  ret void

66:                                               ; preds = %64
  %67 = load ptr, ptr %10, align 8
  %68 = load i32, ptr %11, align 4
  %69 = insertvalue { ptr, i32 } poison, ptr %67, 0
  %70 = insertvalue { ptr, i32 } %69, i32 %68, 1
  resume { ptr, i32 } %70
}

; Function Attrs: mustprogress uwtable
declare dso_local void @_ZN8InStream16__testlib_ensureEbNSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEEE(ptr noundef nonnull align 8 dereferenceable(128), i1 noundef zeroext, ptr noundef) #0 align 2

; Function Attrs: mustprogress nounwind uwtable
declare dso_local void @_ZNSt15__new_allocatorIcED2Ev(ptr noundef nonnull align 1 dereferenceable(1)) unnamed_addr #2 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 = { 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 = { mustprogress noreturn 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 = { nocallback nofree nosync nounwind willreturn }
attributes #5 = { nounwind "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 }
attributes #7 = { noreturn }

!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 = !{i8 0, i8 2}
!12 = !{}
!13 = !{!14, !14, i64 0}
!14 = !{!"int", !7, i64 0}
!15 = !{!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::__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 }
%struct.__va_list_tag = type { i32, i32, ptr, ptr }

@_ZL35__testlib_format_buffer_usage_count = external hidden local_unnamed_addr global i32, align 4
@.str.158 = external hidden unnamed_addr constant [56 x i8], align 1
@_ZL23__testlib_format_buffer = external hidden global [16777216 x i8], align 16

; 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 #0 align 2

; Function Attrs: mustprogress 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 void @_ZNSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEEC2Ev(ptr noundef nonnull align 8 dereferenceable(32)) 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) #1

; 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 noreturn uwtable
declare hidden void @_ZL14__testlib_failRKNSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEEE(ptr noundef nonnull align 8 dereferenceable(32)) local_unnamed_addr #3

; Function Attrs: mustprogress nounwind uwtable
declare void @_ZNSaIcEC2Ev(ptr noundef nonnull align 1 dereferenceable(1)) unnamed_addr #2 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 #0 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 #2 align 2

; Function Attrs: mustprogress nocallback nofree nosync nounwind willreturn
declare void @llvm.va_start.p0(ptr) #4

; Function Attrs: nofree nounwind
declare noundef i32 @vsnprintf(ptr nocapture noundef, i64 noundef, ptr nocapture noundef readonly, ptr noundef) local_unnamed_addr #5

; Function Attrs: mustprogress nocallback nofree nosync nounwind willreturn
declare void @llvm.va_end.p0(ptr) #4

; Function Attrs: mustprogress uwtable
define dso_local void @_ZN8InStream7ensurefEbPKcz(ptr noundef nonnull align 8 dereferenceable(128) %0, i1 noundef zeroext %1, ptr nocapture noundef readonly %2, ...) local_unnamed_addr #0 align 2 personality ptr @__gxx_personality_v0 {
  %4 = alloca %"class.std::__cxx11::basic_string", align 8
  %5 = alloca %"class.std::__cxx11::basic_string", align 8
  %6 = alloca %"class.std::allocator", align 1
  %7 = alloca [1 x %struct.__va_list_tag], align 16
  %8 = alloca %"class.std::__cxx11::basic_string", align 8
  %9 = alloca %"class.std::allocator", align 1
  %10 = alloca %"class.std::__cxx11::basic_string", align 8
  br i1 %1, label %37, label %11

11:                                               ; preds = %3
  call void @llvm.lifetime.start.p0(i64 32, ptr nonnull %4) #6
  call void @_ZNSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEEC2Ev(ptr noundef nonnull align 8 dereferenceable(32) %4) #6
  %12 = load i32, ptr @_ZL35__testlib_format_buffer_usage_count, align 4, !tbaa !5
  %.not = icmp eq i32 %12, 0
  br i1 %.not, label %21, label %13

13:                                               ; preds = %11
  call void @llvm.lifetime.start.p0(i64 32, ptr nonnull %5) #6
  call void @llvm.lifetime.start.p0(i64 1, ptr nonnull %6) #6
  call void @_ZNSaIcEC2Ev(ptr noundef nonnull align 1 dereferenceable(1) %6) #6
  invoke void @_ZNSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEEC2IS3_EEPKcRKS3_(ptr noundef nonnull align 8 dereferenceable(32) %5, ptr noundef nonnull @.str.158, ptr noundef nonnull align 1 dereferenceable(1) %6)
          to label %14 unwind label %16

14:                                               ; preds = %13
  invoke void @_ZL14__testlib_failRKNSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEEE(ptr noundef nonnull align 8 dereferenceable(32) %5) #7
          to label %15 unwind label %18

15:                                               ; preds = %14
  unreachable

16:                                               ; preds = %13
  %17 = landingpad { ptr, i32 }
          cleanup
  br label %20

18:                                               ; preds = %14
  %19 = landingpad { ptr, i32 }
          cleanup
  call void @_ZNSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEED2Ev(ptr noundef nonnull align 8 dereferenceable(32) %5) #6
  br label %20

20:                                               ; preds = %18, %16
  %.pn11 = phi { ptr, i32 } [ %19, %18 ], [ %17, %16 ]
  call void @_ZNSt15__new_allocatorIcED2Ev(ptr noundef nonnull align 1 dereferenceable(1) %6) #6
  call void @llvm.lifetime.end.p0(i64 1, ptr nonnull %6) #6
  call void @llvm.lifetime.end.p0(i64 32, ptr nonnull %5) #6
  br label %36

21:                                               ; preds = %11
  store i32 1, ptr @_ZL35__testlib_format_buffer_usage_count, align 4, !tbaa !5
  call void @llvm.lifetime.start.p0(i64 24, ptr nonnull %7) #6
  call void @llvm.va_start.p0(ptr nonnull %7)
  %22 = call i32 @vsnprintf(ptr noundef nonnull @_ZL23__testlib_format_buffer, i64 noundef 16777216, ptr noundef %2, ptr noundef nonnull %7) #6
  call void @llvm.va_end.p0(ptr nonnull %7)
  store i8 0, ptr getelementptr inbounds (i8, ptr @_ZL23__testlib_format_buffer, i64 16777215), align 1, !tbaa !9
  call void @llvm.lifetime.start.p0(i64 32, ptr nonnull %8) #6
  call void @llvm.lifetime.start.p0(i64 1, ptr nonnull %9) #6
  call void @_ZNSaIcEC2Ev(ptr noundef nonnull align 1 dereferenceable(1) %9) #6
  invoke void @_ZNSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEEC2IS3_EEPKcRKS3_(ptr noundef nonnull align 8 dereferenceable(32) %8, ptr noundef nonnull @_ZL23__testlib_format_buffer, ptr noundef nonnull align 1 dereferenceable(1) %9)
          to label %23 unwind label %29

23:                                               ; preds = %21
  %24 = call noundef nonnull align 8 dereferenceable(32) ptr @_ZNSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEEaSEOS4_(ptr noundef nonnull align 8 dereferenceable(32) %4, ptr noundef nonnull align 8 dereferenceable(32) %8) #6
  call void @_ZNSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEED2Ev(ptr noundef nonnull align 8 dereferenceable(32) %8) #6
  call void @_ZNSt15__new_allocatorIcED2Ev(ptr noundef nonnull align 1 dereferenceable(1) %9) #6
  call void @llvm.lifetime.end.p0(i64 1, ptr nonnull %9) #6
  call void @llvm.lifetime.end.p0(i64 32, ptr nonnull %8) #6
  %25 = load i32, ptr @_ZL35__testlib_format_buffer_usage_count, align 4, !tbaa !5
  %26 = add nsw i32 %25, -1
  store i32 %26, ptr @_ZL35__testlib_format_buffer_usage_count, align 4, !tbaa !5
  invoke void @_ZNSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEEC2ERKS4_(ptr noundef nonnull align 8 dereferenceable(32) %10, ptr noundef nonnull align 8 dereferenceable(32) %4)
          to label %27 unwind label %31

27:                                               ; preds = %23
  invoke void @_ZN8InStream16__testlib_ensureEbNSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEEE(ptr noundef nonnull align 8 dereferenceable(128) %0, i1 noundef zeroext false, ptr noundef nonnull %10)
          to label %28 unwind label %33

28:                                               ; preds = %27
  call void @_ZNSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEED2Ev(ptr noundef nonnull align 8 dereferenceable(32) %10) #6
  call void @llvm.lifetime.end.p0(i64 24, ptr nonnull %7) #6
  call void @_ZNSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEED2Ev(ptr noundef nonnull align 8 dereferenceable(32) %4) #6
  call void @llvm.lifetime.end.p0(i64 32, ptr nonnull %4) #6
  br label %37

29:                                               ; preds = %21
  %30 = landingpad { ptr, i32 }
          cleanup
  call void @_ZNSt15__new_allocatorIcED2Ev(ptr noundef nonnull align 1 dereferenceable(1) %9) #6
  call void @llvm.lifetime.end.p0(i64 1, ptr nonnull %9) #6
  call void @llvm.lifetime.end.p0(i64 32, ptr nonnull %8) #6
  br label %35

31:                                               ; preds = %23
  %32 = landingpad { ptr, i32 }
          cleanup
  br label %35

33:                                               ; preds = %27
  %34 = landingpad { ptr, i32 }
          cleanup
  call void @_ZNSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEED2Ev(ptr noundef nonnull align 8 dereferenceable(32) %10) #6
  br label %35

35:                                               ; preds = %33, %31, %29
  %.pn = phi { ptr, i32 } [ %34, %33 ], [ %32, %31 ], [ %30, %29 ]
  call void @llvm.lifetime.end.p0(i64 24, ptr nonnull %7) #6
  br label %36

36:                                               ; preds = %35, %20
  %.pn11.pn = phi { ptr, i32 } [ %.pn11, %20 ], [ %.pn, %35 ]
  call void @_ZNSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEED2Ev(ptr noundef nonnull align 8 dereferenceable(32) %4) #6
  call void @llvm.lifetime.end.p0(i64 32, ptr nonnull %4) #6
  resume { ptr, i32 } %.pn11.pn

37:                                               ; preds = %28, %3
  ret void
}

; Function Attrs: mustprogress uwtable
declare dso_local void @_ZN8InStream16__testlib_ensureEbNSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEEE(ptr noundef nonnull align 8 dereferenceable(128), i1 noundef zeroext, ptr noundef) local_unnamed_addr #0 align 2

; Function Attrs: mustprogress nounwind uwtable
declare dso_local void @_ZNSt15__new_allocatorIcED2Ev(ptr noundef nonnull align 1 dereferenceable(1)) unnamed_addr #2 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 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 = { mustprogress noreturn 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 = { mustprogress nocallback nofree nosync nounwind willreturn }
attributes #5 = { nofree nounwind "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 }
attributes #7 = { noreturn }

!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 = !{!"int", !7, i64 0}
!7 = !{!"omnipotent char", !8, i64 0}
!8 = !{!"Simple C++ TBAA"}
!9 = !{!7, !7, i64 0}


; Effective O3 passes: CorrelatedValuePropagationPass,EarlyCSEPass,GlobalOptPass,IPSCCPPass,InferFunctionAttrsPass,InstCombinePass,PostOrderFunctionAttrsPass,SROAPass,SimplifyCFGPass