; LLVM IR from mkazhdan/DMG :: Util/GridStream.ll (ZN17NULLStreamingGridD2Ev)

; 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.NULLStreamingGrid = type { %class.StreamingGrid, ptr, i32, i32 }
%class.StreamingGrid = type { %class.IOClient }
%class.IOClient = type { ptr, %"class.boost::recursive_timed_mutex", ptr }
%"class.boost::recursive_timed_mutex" = type <{ %union.pthread_mutex_t, %union.pthread_cond_t, i8, [7 x i8], i64, i32, [4 x i8] }>
%union.pthread_mutex_t = type { %struct.__pthread_mutex_s }
%struct.__pthread_mutex_s = type { i32, i32, i32, i32, i32, i16, i16, %struct.__pthread_internal_list }
%struct.__pthread_internal_list = type { ptr, ptr }
%union.pthread_cond_t = type { %struct.__pthread_cond_s }
%struct.__pthread_cond_s = type { %union.__atomic_wide_counter, %union.__atomic_wide_counter, [2 x i32], [2 x i32], i32, i32, [2 x i32] }
%union.__atomic_wide_counter = type { i64 }

@_ZTV17NULLStreamingGrid = external dso_local unnamed_addr constant { [12 x ptr] }, align 8

; Function Attrs: mustprogress nounwind uwtable
define dso_local void @_ZN17NULLStreamingGridD2Ev(ptr noundef nonnull align 8 dereferenceable(144) %0) unnamed_addr #0 align 2 {
  %2 = alloca ptr, align 8
  store ptr %0, ptr %2, align 8, !tbaa !5
  %3 = load ptr, ptr %2, align 8
  store ptr getelementptr inbounds inrange(-16, 80) ({ [12 x ptr] }, ptr @_ZTV17NULLStreamingGrid, i32 0, i32 0, i32 2), ptr %3, align 8, !tbaa !9
  %4 = getelementptr inbounds %class.NULLStreamingGrid, ptr %3, i32 0, i32 1
  %5 = load ptr, ptr %4, align 8, !tbaa !11
  %6 = icmp ne ptr %5, null
  br i1 %6, label %7, label %11

7:                                                ; preds = %1
  %8 = getelementptr inbounds %class.NULLStreamingGrid, ptr %3, i32 0, i32 1
  %9 = load ptr, ptr %8, align 8, !tbaa !11
  call void @free(ptr noundef %9) #2
  %10 = getelementptr inbounds %class.NULLStreamingGrid, ptr %3, i32 0, i32 1
  store ptr null, ptr %10, align 8, !tbaa !11
  br label %11

11:                                               ; preds = %7, %1
  call void @_ZN13StreamingGridD2Ev(ptr noundef nonnull align 8 dereferenceable(128) %3) #2
  ret void
}

; Function Attrs: nounwind
declare void @free(ptr noundef) #1

; Function Attrs: mustprogress nounwind uwtable
declare dso_local void @_ZN13StreamingGridD2Ev(ptr noundef nonnull align 8 dereferenceable(128)) 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 = { 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 #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 = !{!"any pointer", !7, i64 0}
!7 = !{!"omnipotent char", !8, i64 0}
!8 = !{!"Simple C++ TBAA"}
!9 = !{!10, !10, i64 0}
!10 = !{!"vtable pointer", !8, i64 0}
!11 = !{!12, !6, i64 128}
!12 = !{!"_ZTS17NULLStreamingGrid", !13, i64 0, !6, i64 128, !18, i64 136, !18, i64 140}
!13 = !{!"_ZTS13StreamingGrid", !14, i64 0}
!14 = !{!"_ZTS8IOClient", !15, i64 8, !6, i64 120}
!15 = !{!"_ZTSN5boost21recursive_timed_mutexE", !7, i64 0, !7, i64 40, !16, i64 88, !17, i64 96, !18, i64 104}
!16 = !{!"bool", !7, i64 0}
!17 = !{!"long", !7, i64 0}
!18 = !{!"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"

@_ZTV17NULLStreamingGrid = external dso_local unnamed_addr constant { [12 x ptr] }, align 8

; Function Attrs: mustprogress nounwind uwtable
define dso_local void @_ZN17NULLStreamingGridD2Ev(ptr noundef nonnull align 8 dereferenceable(144) %0) unnamed_addr #0 align 2 {
  store ptr getelementptr inbounds inrange(-16, 80) (i8, ptr @_ZTV17NULLStreamingGrid, i64 16), ptr %0, align 8, !tbaa !5
  %2 = getelementptr inbounds i8, ptr %0, i64 128
  %3 = load ptr, ptr %2, align 8, !tbaa !8
  %.not = icmp eq ptr %3, null
  br i1 %.not, label %5, label %4

4:                                                ; preds = %1
  tail call void @free(ptr noundef nonnull %3) #2
  store ptr null, ptr %2, align 8, !tbaa !8
  br label %5

5:                                                ; preds = %4, %1
  tail call void @_ZN13StreamingGridD2Ev(ptr noundef nonnull align 8 dereferenceable(128) %0) #2
  ret void
}

; Function Attrs: mustprogress nounwind willreturn allockind("free") memory(argmem: readwrite, inaccessiblemem: readwrite)
declare void @free(ptr allocptr nocapture noundef) local_unnamed_addr #1

; Function Attrs: mustprogress nounwind uwtable
declare dso_local void @_ZN13StreamingGridD2Ev(ptr noundef nonnull align 8 dereferenceable(128)) 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 nounwind willreturn allockind("free") memory(argmem: readwrite, inaccessiblemem: readwrite) "alloc-family"="malloc" "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 = !{!"vtable pointer", !7, i64 0}
!7 = !{!"Simple C++ TBAA"}
!8 = !{!9, !17, i64 128}
!9 = !{!"_ZTS17NULLStreamingGrid", !10, i64 0, !17, i64 128, !16, i64 136, !16, i64 140}
!10 = !{!"_ZTS13StreamingGrid", !11, i64 0}
!11 = !{!"_ZTS8IOClient", !12, i64 8, !17, i64 120}
!12 = !{!"_ZTSN5boost21recursive_timed_mutexE", !13, i64 0, !13, i64 40, !14, i64 88, !15, i64 96, !16, i64 104}
!13 = !{!"omnipotent char", !7, i64 0}
!14 = !{!"bool", !13, i64 0}
!15 = !{!"long", !13, i64 0}
!16 = !{!"int", !13, i64 0}
!17 = !{!"any pointer", !13, i64 0}


; Effective O3 passes: CorrelatedValuePropagationPass,EarlyCSEPass,GlobalOptPass,InferFunctionAttrsPass,InstCombinePass,SROAPass,TailCallElimPass