; LLVM IR from nsccgz-storage/nvlsm :: table/iterator.ll (ZN7leveldb16NewErrorIteratorERKNS_6StatusE)

; 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"

declare i32 @__gxx_personality_v0(...)

; Function Attrs: nobuiltin nounwind
declare void @_ZdlPvm(ptr noundef, i64 noundef) #0

; Function Attrs: nobuiltin allocsize(0)
declare noundef nonnull ptr @_Znwm(i64 noundef) #1

; Function Attrs: mustprogress uwtable
declare hidden void @_ZN7leveldb12_GLOBAL__N_113EmptyIteratorC2ERKNS_6StatusE(ptr noundef nonnull align 8 dereferenceable(48), ptr noundef nonnull align 8 dereferenceable(8)) unnamed_addr #2 align 2

; Function Attrs: mustprogress uwtable
define dso_local noundef ptr @_ZN7leveldb16NewErrorIteratorERKNS_6StatusE(ptr noundef nonnull align 8 dereferenceable(8) %0) #2 personality ptr @__gxx_personality_v0 {
  %2 = alloca ptr, align 8
  %3 = alloca ptr, align 8
  %4 = alloca i32, align 4
  store ptr %0, ptr %2, align 8, !tbaa !5
  %5 = call noalias noundef nonnull ptr @_Znwm(i64 noundef 48) #3
  %6 = load ptr, ptr %2, align 8, !tbaa !5
  invoke void @_ZN7leveldb12_GLOBAL__N_113EmptyIteratorC2ERKNS_6StatusE(ptr noundef nonnull align 8 dereferenceable(48) %5, ptr noundef nonnull align 8 dereferenceable(8) %6)
          to label %7 unwind label %8

7:                                                ; preds = %1
  ret ptr %5

8:                                                ; preds = %1
  %9 = landingpad { ptr, i32 }
          cleanup
  %10 = extractvalue { ptr, i32 } %9, 0
  store ptr %10, ptr %3, align 8
  %11 = extractvalue { ptr, i32 } %9, 1
  store i32 %11, ptr %4, align 4
  call void @_ZdlPvm(ptr noundef %5, i64 noundef 48) #4
  br label %12

12:                                               ; preds = %8
  %13 = load ptr, ptr %3, align 8
  %14 = load i32, ptr %4, align 4
  %15 = insertvalue { ptr, i32 } poison, ptr %13, 0
  %16 = insertvalue { ptr, i32 } %15, i32 %14, 1
  resume { ptr, i32 } %16
}

attributes #0 = { nobuiltin 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 #1 = { nobuiltin allocsize(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 = { builtin allocsize(0) }
attributes #4 = { builtin 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"}


; 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"

declare i32 @__gxx_personality_v0(...)

; Function Attrs: nobuiltin nounwind
declare void @_ZdlPvm(ptr noundef, i64 noundef) local_unnamed_addr #0

; Function Attrs: nobuiltin allocsize(0)
declare noundef nonnull ptr @_Znwm(i64 noundef) local_unnamed_addr #1

; Function Attrs: mustprogress uwtable
declare hidden void @_ZN7leveldb12_GLOBAL__N_113EmptyIteratorC2ERKNS_6StatusE(ptr noundef nonnull align 8 dereferenceable(48), ptr noundef nonnull align 8 dereferenceable(8)) unnamed_addr #2 align 2

; Function Attrs: mustprogress uwtable
define dso_local noundef nonnull ptr @_ZN7leveldb16NewErrorIteratorERKNS_6StatusE(ptr noundef nonnull align 8 dereferenceable(8) %0) local_unnamed_addr #2 personality ptr @__gxx_personality_v0 {
  %2 = tail call noalias noundef nonnull dereferenceable(48) ptr @_Znwm(i64 noundef 48) #3
  invoke void @_ZN7leveldb12_GLOBAL__N_113EmptyIteratorC2ERKNS_6StatusE(ptr noundef nonnull align 8 dereferenceable(48) %2, ptr noundef nonnull align 8 dereferenceable(8) %0)
          to label %3 unwind label %4

3:                                                ; preds = %1
  ret ptr %2

4:                                                ; preds = %1
  %5 = landingpad { ptr, i32 }
          cleanup
  tail call void @_ZdlPvm(ptr noundef nonnull %2, i64 noundef 48) #4
  resume { ptr, i32 } %5
}

attributes #0 = { nobuiltin 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 #1 = { nobuiltin allocsize(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 = { builtin allocsize(0) }
attributes #4 = { builtin 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,InstCombinePass,PostOrderFunctionAttrsPass,SROAPass,SimplifyCFGPass,TailCallElimPass