; LLVM IR from generalized-intelligence/GAAS :: deprecated/algorithms/GlobalOptimizationGraph_GTSAM/Thirdparty/g2o/g2o/core/ma_4c8fe68c (ZN3g2o15MatrixStructure4freeEv)

; 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.g2o::MatrixStructure" = type { i32, i32, ptr, ptr, i32, i32 }

; Function Attrs: mustprogress nounwind uwtable
define dso_local void @_ZN3g2o15MatrixStructure4freeEv(ptr noundef nonnull align 8 dereferenceable(32) %0) #0 align 2 {
  %2 = alloca ptr, align 8
  store ptr %0, ptr %2, align 8, !tbaa !5
  %3 = load ptr, ptr %2, align 8
  %4 = getelementptr inbounds %"class.g2o::MatrixStructure", ptr %3, i32 0, i32 0
  store i32 0, ptr %4, align 8, !tbaa !9
  %5 = getelementptr inbounds %"class.g2o::MatrixStructure", ptr %3, i32 0, i32 1
  store i32 0, ptr %5, align 4, !tbaa !12
  %6 = getelementptr inbounds %"class.g2o::MatrixStructure", ptr %3, i32 0, i32 4
  store i32 0, ptr %6, align 8, !tbaa !13
  %7 = getelementptr inbounds %"class.g2o::MatrixStructure", ptr %3, i32 0, i32 5
  store i32 0, ptr %7, align 4, !tbaa !14
  %8 = getelementptr inbounds %"class.g2o::MatrixStructure", ptr %3, i32 0, i32 3
  %9 = load ptr, ptr %8, align 8, !tbaa !15
  %10 = icmp eq ptr %9, null
  br i1 %10, label %12, label %11

11:                                               ; preds = %1
  call void @_ZdaPv(ptr noundef %9) #2
  br label %12

12:                                               ; preds = %11, %1
  %13 = getelementptr inbounds %"class.g2o::MatrixStructure", ptr %3, i32 0, i32 3
  store ptr null, ptr %13, align 8, !tbaa !15
  %14 = getelementptr inbounds %"class.g2o::MatrixStructure", ptr %3, i32 0, i32 2
  %15 = load ptr, ptr %14, align 8, !tbaa !16
  %16 = icmp eq ptr %15, null
  br i1 %16, label %18, label %17

17:                                               ; preds = %12
  call void @_ZdaPv(ptr noundef %15) #2
  br label %18

18:                                               ; preds = %17, %12
  %19 = getelementptr inbounds %"class.g2o::MatrixStructure", ptr %3, i32 0, i32 2
  store ptr null, ptr %19, align 8, !tbaa !16
  ret void
}

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

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 = { 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 #2 = { 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"}
!9 = !{!10, !11, i64 0}
!10 = !{!"_ZTSN3g2o15MatrixStructureE", !11, i64 0, !11, i64 4, !6, i64 8, !6, i64 16, !11, i64 24, !11, i64 28}
!11 = !{!"int", !7, i64 0}
!12 = !{!10, !11, i64 4}
!13 = !{!10, !11, i64 24}
!14 = !{!10, !11, i64 28}
!15 = !{!10, !6, i64 16}
!16 = !{!10, !6, i64 8}


; 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"

; Function Attrs: mustprogress nounwind uwtable
define dso_local void @_ZN3g2o15MatrixStructure4freeEv(ptr nocapture noundef nonnull align 8 dereferenceable(32) %0) local_unnamed_addr #0 align 2 {
  store i32 0, ptr %0, align 8, !tbaa !5
  %2 = getelementptr inbounds i8, ptr %0, i64 4
  store i32 0, ptr %2, align 4, !tbaa !11
  %3 = getelementptr inbounds i8, ptr %0, i64 24
  store i32 0, ptr %3, align 8, !tbaa !12
  %4 = getelementptr inbounds i8, ptr %0, i64 28
  store i32 0, ptr %4, align 4, !tbaa !13
  %5 = getelementptr inbounds i8, ptr %0, i64 16
  %6 = load ptr, ptr %5, align 8, !tbaa !14
  %7 = icmp eq ptr %6, null
  br i1 %7, label %9, label %8

8:                                                ; preds = %1
  tail call void @_ZdaPv(ptr noundef nonnull %6) #2
  br label %9

9:                                                ; preds = %8, %1
  store ptr null, ptr %5, align 8, !tbaa !14
  %10 = getelementptr inbounds i8, ptr %0, i64 8
  %11 = load ptr, ptr %10, align 8, !tbaa !15
  %12 = icmp eq ptr %11, null
  br i1 %12, label %14, label %13

13:                                               ; preds = %9
  tail call void @_ZdaPv(ptr noundef nonnull %11) #2
  br label %14

14:                                               ; preds = %13, %9
  store ptr null, ptr %10, align 8, !tbaa !15
  ret void
}

; Function Attrs: nobuiltin nounwind
declare void @_ZdaPv(ptr noundef) local_unnamed_addr #1

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 = { 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 #2 = { 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, !7, i64 0}
!6 = !{!"_ZTSN3g2o15MatrixStructureE", !7, i64 0, !7, i64 4, !10, i64 8, !10, i64 16, !7, i64 24, !7, i64 28}
!7 = !{!"int", !8, i64 0}
!8 = !{!"omnipotent char", !9, i64 0}
!9 = !{!"Simple C++ TBAA"}
!10 = !{!"any pointer", !8, i64 0}
!11 = !{!6, !7, i64 4}
!12 = !{!6, !7, i64 24}
!13 = !{!6, !7, i64 28}
!14 = !{!6, !10, i64 16}
!15 = !{!6, !10, i64 8}


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