; LLVM IR from bohanwang/libpgo :: src/core/basicAlgorithms (stringHelper)

; 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] }
%struct.__va_list_tag = type { i32, i32, ptr, ptr }
%"class.std::allocator" = type { i8 }

@.str = external hidden unnamed_addr constant [9 x i8], align 1
@.str.1 = external hidden unnamed_addr constant [92 x i8], align 1
@__PRETTY_FUNCTION__._ZN3pgo15BasicAlgorithms13format2stringB5cxx11EPKcz = external hidden unnamed_addr constant [62 x i8], align 1

; Function Attrs: mustprogress nounwind uwtable
declare noundef i64 @_ZNKSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEE4sizeEv(ptr noundef nonnull align 8 dereferenceable(32)) #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: 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 noundef nonnull align 1 dereferenceable(1) ptr @_ZNSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEEixEm(ptr noundef nonnull align 8 dereferenceable(32), i64 noundef) #0 align 2

; Function Attrs: mustprogress nounwind uwtable
declare void @_ZNSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEED2Ev(ptr noundef nonnull align 8 dereferenceable(32)) unnamed_addr #0 align 2

; Function Attrs: mustprogress uwtable
define dso_local void @_ZN3pgo15BasicAlgorithms13format2stringB5cxx11EPKcz(ptr dead_on_unwind noalias writable sret(%"class.std::__cxx11::basic_string") align 8 %0, ptr noundef %1, ...) #2 personality ptr @__gxx_personality_v0 {
  %3 = alloca ptr, align 8
  %4 = alloca ptr, align 8
  %5 = alloca [1 x %struct.__va_list_tag], align 16
  %6 = alloca [1 x %struct.__va_list_tag], align 16
  %7 = alloca i32, align 4
  %8 = alloca i1, align 1
  %9 = alloca %"class.std::allocator", align 1
  %10 = alloca ptr, align 8
  %11 = alloca i32, align 4
  %12 = alloca i32, align 4
  store ptr %0, ptr %3, align 8
  store ptr %1, ptr %4, align 8, !tbaa !5
  call void @llvm.lifetime.start.p0(i64 24, ptr %5) #6
  %13 = getelementptr inbounds [1 x %struct.__va_list_tag], ptr %5, i64 0, i64 0
  call void @llvm.va_start.p0(ptr %13)
  call void @llvm.lifetime.start.p0(i64 24, ptr %6) #6
  %14 = getelementptr inbounds [1 x %struct.__va_list_tag], ptr %6, i64 0, i64 0
  %15 = getelementptr inbounds [1 x %struct.__va_list_tag], ptr %5, i64 0, i64 0
  call void @llvm.va_copy.p0(ptr %14, ptr %15)
  call void @llvm.lifetime.start.p0(i64 4, ptr %7) #6
  %16 = load ptr, ptr %4, align 8, !tbaa !5
  %17 = getelementptr inbounds [1 x %struct.__va_list_tag], ptr %5, i64 0, i64 0
  %18 = call i32 @vsnprintf(ptr noundef null, i64 noundef 0, ptr noundef %16, ptr noundef %17) #6
  store i32 %18, ptr %7, align 4, !tbaa !9
  %19 = getelementptr inbounds [1 x %struct.__va_list_tag], ptr %5, i64 0, i64 0
  call void @llvm.va_end.p0(ptr %19)
  store i1 false, ptr %8, align 1
  %20 = load i32, ptr %7, align 4, !tbaa !9
  %21 = add nsw i32 %20, 1
  %22 = sext i32 %21 to i64
  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_EEmcRKS3_(ptr noundef nonnull align 8 dereferenceable(32) %0, i64 noundef %22, i8 noundef signext 0, ptr noundef nonnull align 1 dereferenceable(1) %9)
          to label %23 unwind label %35

23:                                               ; preds = %2
  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.start.p0(i64 4, ptr %12) #6
  %24 = invoke noundef nonnull align 1 dereferenceable(1) ptr @_ZNSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEEixEm(ptr noundef nonnull align 8 dereferenceable(32) %0, i64 noundef 0)
          to label %25 unwind label %39

25:                                               ; preds = %23
  %26 = call noundef i64 @_ZNKSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEE4sizeEv(ptr noundef nonnull align 8 dereferenceable(32) %0) #6
  %27 = load ptr, ptr %4, align 8, !tbaa !5
  %28 = getelementptr inbounds [1 x %struct.__va_list_tag], ptr %6, i64 0, i64 0
  %29 = call i32 @vsnprintf(ptr noundef %24, i64 noundef %26, ptr noundef %27, ptr noundef %28) #6
  store i32 %29, ptr %12, align 4, !tbaa !9
  %30 = getelementptr inbounds [1 x %struct.__va_list_tag], ptr %6, i64 0, i64 0
  call void @llvm.va_end.p0(ptr %30)
  %31 = load i32, ptr %12, align 4, !tbaa !9
  %32 = icmp sge i32 %31, 0
  br i1 %32, label %33, label %34

33:                                               ; preds = %25
  br label %44

34:                                               ; preds = %25
  call void @__assert_fail(ptr noundef @.str, ptr noundef @.str.1, i32 noundef 157, ptr noundef @__PRETTY_FUNCTION__._ZN3pgo15BasicAlgorithms13format2stringB5cxx11EPKcz) #7
  unreachable

35:                                               ; preds = %2
  %36 = landingpad { ptr, i32 }
          cleanup
  %37 = extractvalue { ptr, i32 } %36, 0
  store ptr %37, ptr %10, align 8
  %38 = extractvalue { ptr, i32 } %36, 1
  store i32 %38, ptr %11, align 4
  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
  br label %48

39:                                               ; preds = %23
  %40 = landingpad { ptr, i32 }
          cleanup
  %41 = extractvalue { ptr, i32 } %40, 0
  store ptr %41, ptr %10, align 8
  %42 = extractvalue { ptr, i32 } %40, 1
  store i32 %42, ptr %11, align 4
  call void @llvm.lifetime.end.p0(i64 4, ptr %12) #6
  call void @_ZNSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEED2Ev(ptr noundef nonnull align 8 dereferenceable(32) %0) #6
  br label %48

43:                                               ; No predecessors!
  br label %44

44:                                               ; preds = %43, %33
  store i1 true, ptr %8, align 1
  call void @llvm.lifetime.end.p0(i64 4, ptr %12) #6
  %45 = load i1, ptr %8, align 1
  br i1 %45, label %47, label %46

46:                                               ; preds = %44
  call void @_ZNSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEED2Ev(ptr noundef nonnull align 8 dereferenceable(32) %0) #6
  br label %47

47:                                               ; preds = %46, %44
  call void @llvm.lifetime.end.p0(i64 4, ptr %7) #6
  call void @llvm.lifetime.end.p0(i64 24, ptr %6) #6
  call void @llvm.lifetime.end.p0(i64 24, ptr %5) #6
  ret void

48:                                               ; preds = %39, %35
  call void @llvm.lifetime.end.p0(i64 4, ptr %7) #6
  call void @llvm.lifetime.end.p0(i64 24, ptr %6) #6
  call void @llvm.lifetime.end.p0(i64 24, ptr %5) #6
  br label %49

49:                                               ; preds = %48
  %50 = load ptr, ptr %10, align 8
  %51 = load i32, ptr %11, align 4
  %52 = insertvalue { ptr, i32 } poison, ptr %50, 0
  %53 = insertvalue { ptr, i32 } %52, i32 %51, 1
  resume { ptr, i32 } %53
}

; Function Attrs: nocallback nofree nosync nounwind willreturn
declare void @llvm.va_start.p0(ptr) #3

; Function Attrs: nocallback nofree nosync nounwind willreturn
declare void @llvm.va_copy.p0(ptr, ptr) #3

; Function Attrs: nounwind
declare i32 @vsnprintf(ptr noundef, i64 noundef, ptr noundef, ptr noundef) #4

; Function Attrs: nocallback nofree nosync nounwind willreturn
declare void @llvm.va_end.p0(ptr) #3

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

; Function Attrs: mustprogress uwtable
declare dso_local void @_ZNSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEEC2IS3_EEmcRKS3_(ptr noundef nonnull align 8 dereferenceable(32), i64 noundef, i8 noundef signext, ptr noundef nonnull align 1 dereferenceable(1)) unnamed_addr #2 align 2

declare i32 @__gxx_personality_v0(...)

; Function Attrs: noreturn nounwind
declare void @__assert_fail(ptr noundef, ptr noundef, i32 noundef, ptr noundef) #5

; Function Attrs: mustprogress nounwind uwtable
declare dso_local void @_ZNSt15__new_allocatorIcED2Ev(ptr noundef nonnull align 1 dereferenceable(1)) unnamed_addr #0 align 2

attributes #0 = { 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 #1 = { nocallback nofree nosync nounwind willreturn memory(argmem: readwrite) }
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 = { nocallback nofree nosync nounwind willreturn }
attributes #4 = { 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 #5 = { noreturn 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 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] }
%struct.__va_list_tag = type { i32, i32, ptr, ptr }
%"class.std::allocator" = type { i8 }

@.str = external hidden unnamed_addr constant [9 x i8], align 1
@.str.1 = external hidden unnamed_addr constant [92 x i8], align 1
@__PRETTY_FUNCTION__._ZN3pgo15BasicAlgorithms13format2stringB5cxx11EPKcz = external hidden unnamed_addr constant [62 x i8], align 1

; Function Attrs: mustprogress nounwind uwtable
declare noundef i64 @_ZNKSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEE4sizeEv(ptr noundef nonnull align 8 dereferenceable(32)) local_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 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 noundef nonnull align 1 dereferenceable(1) ptr @_ZNSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEEixEm(ptr noundef nonnull align 8 dereferenceable(32), i64 noundef) local_unnamed_addr #0 align 2

; Function Attrs: mustprogress uwtable
define dso_local void @_ZN3pgo15BasicAlgorithms13format2stringB5cxx11EPKcz(ptr dead_on_unwind noalias writable sret(%"class.std::__cxx11::basic_string") align 8 %0, ptr nocapture noundef readonly %1, ...) local_unnamed_addr #2 personality ptr @__gxx_personality_v0 {
  %3 = alloca [1 x %struct.__va_list_tag], align 16
  %4 = alloca [1 x %struct.__va_list_tag], align 16
  %5 = alloca %"class.std::allocator", align 1
  call void @llvm.lifetime.start.p0(i64 24, ptr nonnull %3) #6
  call void @llvm.va_start.p0(ptr nonnull %3)
  call void @llvm.lifetime.start.p0(i64 24, ptr nonnull %4) #6
  call void @llvm.va_copy.p0(ptr nonnull %4, ptr nonnull %3)
  %6 = call i32 @vsnprintf(ptr noundef null, i64 noundef 0, ptr noundef %1, ptr noundef nonnull %3) #6
  call void @llvm.va_end.p0(ptr nonnull %3)
  %7 = add nsw i32 %6, 1
  %8 = sext i32 %7 to i64
  call void @llvm.lifetime.start.p0(i64 1, ptr nonnull %5) #6
  call void @_ZNSaIcEC2Ev(ptr noundef nonnull align 1 dereferenceable(1) %5) #6
  invoke void @_ZNSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEEC2IS3_EEmcRKS3_(ptr noundef nonnull align 8 dereferenceable(32) %0, i64 noundef %8, i8 noundef signext 0, ptr noundef nonnull align 1 dereferenceable(1) %5)
          to label %9 unwind label %15

9:                                                ; preds = %2
  call void @_ZNSt15__new_allocatorIcED2Ev(ptr noundef nonnull align 1 dereferenceable(1) %5) #6
  call void @llvm.lifetime.end.p0(i64 1, ptr nonnull %5) #6
  %10 = call noundef nonnull align 1 dereferenceable(1) ptr @_ZNSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEEixEm(ptr noundef nonnull align 8 dereferenceable(32) %0, i64 noundef 0)
  %11 = call noundef i64 @_ZNKSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEE4sizeEv(ptr noundef nonnull align 8 dereferenceable(32) %0) #6
  %12 = call i32 @vsnprintf(ptr noundef nonnull %10, i64 noundef %11, ptr noundef %1, ptr noundef nonnull %4) #6
  call void @llvm.va_end.p0(ptr nonnull %4)
  %13 = icmp sgt i32 %12, -1
  br i1 %13, label %17, label %14

14:                                               ; preds = %9
  call void @__assert_fail(ptr noundef nonnull @.str, ptr noundef nonnull @.str.1, i32 noundef 157, ptr noundef nonnull @__PRETTY_FUNCTION__._ZN3pgo15BasicAlgorithms13format2stringB5cxx11EPKcz) #7
  unreachable

15:                                               ; preds = %2
  %16 = landingpad { ptr, i32 }
          cleanup
  call void @_ZNSt15__new_allocatorIcED2Ev(ptr noundef nonnull align 1 dereferenceable(1) %5) #6
  call void @llvm.lifetime.end.p0(i64 1, ptr nonnull %5) #6
  call void @llvm.lifetime.end.p0(i64 24, ptr nonnull %4) #6
  call void @llvm.lifetime.end.p0(i64 24, ptr nonnull %3) #6
  resume { ptr, i32 } %16

17:                                               ; preds = %9
  call void @llvm.lifetime.end.p0(i64 24, ptr nonnull %4) #6
  call void @llvm.lifetime.end.p0(i64 24, ptr nonnull %3) #6
  ret void
}

; Function Attrs: mustprogress nocallback nofree nosync nounwind willreturn
declare void @llvm.va_start.p0(ptr) #3

; Function Attrs: mustprogress nocallback nofree nosync nounwind willreturn
declare void @llvm.va_copy.p0(ptr, ptr) #3

; Function Attrs: nofree nounwind
declare noundef i32 @vsnprintf(ptr nocapture noundef, i64 noundef, ptr nocapture noundef readonly, ptr noundef) local_unnamed_addr #4

; Function Attrs: mustprogress nocallback nofree nosync nounwind willreturn
declare void @llvm.va_end.p0(ptr) #3

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

; Function Attrs: mustprogress uwtable
declare dso_local void @_ZNSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEEC2IS3_EEmcRKS3_(ptr noundef nonnull align 8 dereferenceable(32), i64 noundef, i8 noundef signext, ptr noundef nonnull align 1 dereferenceable(1)) unnamed_addr #2 align 2

declare i32 @__gxx_personality_v0(...)

; Function Attrs: noreturn nounwind
declare void @__assert_fail(ptr noundef, ptr noundef, i32 noundef, ptr noundef) local_unnamed_addr #5

; Function Attrs: mustprogress nounwind uwtable
declare dso_local void @_ZNSt15__new_allocatorIcED2Ev(ptr noundef nonnull align 1 dereferenceable(1)) unnamed_addr #0 align 2

attributes #0 = { 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 #1 = { mustprogress nocallback nofree nosync nounwind willreturn memory(argmem: readwrite) }
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 = { mustprogress nocallback nofree nosync nounwind willreturn }
attributes #4 = { 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 #5 = { noreturn 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 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: CorrelatedValuePropagationPass,EarlyCSEPass,GlobalOptPass,IPSCCPPass,InferFunctionAttrsPass,InstCombinePass,PostOrderFunctionAttrsPass,SROAPass,SimplifyCFGPass