; LLVM IR from clausecker/24puzzle :: bitpdb (bitpdb_free)

; 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"

%struct.bitpdb = type { %struct.index_aux, i32, ptr, [16 x i8] }
%struct.index_aux = type { [32 x i8], [16 x i8], i32, i32, i32, i32, i32, ptr, [16 x i8] }

; Function Attrs: inlinehint nounwind uwtable
declare hidden i64 @bitpdb_size(ptr noundef) #0

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

; Function Attrs: nounwind uwtable
define dso_local void @bitpdb_free(ptr noundef %0) #2 {
  %2 = alloca ptr, align 8
  store ptr %0, ptr %2, align 8, !tbaa !5
  %3 = load ptr, ptr %2, align 8, !tbaa !5
  %4 = getelementptr inbounds %struct.bitpdb, ptr %3, i32 0, i32 1
  %5 = load i32, ptr %4, align 32, !tbaa !9
  %6 = icmp ne i32 %5, 0
  br i1 %6, label %7, label %15

7:                                                ; preds = %1
  %8 = load ptr, ptr %2, align 8, !tbaa !5
  %9 = getelementptr inbounds %struct.bitpdb, ptr %8, i32 0, i32 2
  %10 = load ptr, ptr %9, align 8, !tbaa !13
  %11 = load ptr, ptr %2, align 8, !tbaa !5
  %12 = getelementptr inbounds %struct.bitpdb, ptr %11, i32 0, i32 0
  %13 = call i64 @bitpdb_size(ptr noundef %12)
  %14 = call i32 @munmap(ptr noundef %10, i64 noundef %13) #3
  br label %19

15:                                               ; preds = %1
  %16 = load ptr, ptr %2, align 8, !tbaa !5
  %17 = getelementptr inbounds %struct.bitpdb, ptr %16, i32 0, i32 2
  %18 = load ptr, ptr %17, align 8, !tbaa !13
  call void @free(ptr noundef %18) #3
  br label %19

19:                                               ; preds = %15, %7
  %20 = load ptr, ptr %2, align 8, !tbaa !5
  call void @free(ptr noundef %20) #3
  ret void
}

; Function Attrs: nounwind
declare i32 @munmap(ptr noundef, i64 noundef) #1

attributes #0 = { inlinehint 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 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 = { 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/C++ TBAA"}
!9 = !{!10, !12, i64 96}
!10 = !{!"bitpdb", !11, i64 0, !12, i64 96, !6, i64 104}
!11 = !{!"index_aux", !7, i64 0, !7, i64 32, !12, i64 48, !12, i64 52, !12, i64 56, !12, i64 60, !12, i64 64, !6, i64 72}
!12 = !{!"int", !7, i64 0}
!13 = !{!10, !6, i64 104}


; 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: inlinehint nounwind uwtable
declare hidden i64 @bitpdb_size(ptr noundef) local_unnamed_addr #0

; 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: nounwind uwtable
define dso_local void @bitpdb_free(ptr noundef %0) local_unnamed_addr #2 {
  %2 = getelementptr inbounds i8, ptr %0, i64 96
  %3 = load i32, ptr %2, align 32, !tbaa !5
  %.not = icmp eq i32 %3, 0
  %4 = getelementptr inbounds i8, ptr %0, i64 104
  %5 = load ptr, ptr %4, align 8, !tbaa !12
  br i1 %.not, label %9, label %6

6:                                                ; preds = %1
  %7 = tail call i64 @bitpdb_size(ptr noundef nonnull %0)
  %8 = tail call i32 @munmap(ptr noundef %5, i64 noundef %7) #4
  br label %10

9:                                                ; preds = %1
  tail call void @free(ptr noundef %5) #4
  br label %10

10:                                               ; preds = %9, %6
  tail call void @free(ptr noundef nonnull %0) #4
  ret void
}

; Function Attrs: nounwind
declare i32 @munmap(ptr noundef, i64 noundef) local_unnamed_addr #3

attributes #0 = { inlinehint 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 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 = { 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 #4 = { 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, !10, i64 96}
!6 = !{!"bitpdb", !7, i64 0, !10, i64 96, !11, i64 104}
!7 = !{!"index_aux", !8, i64 0, !8, i64 32, !10, i64 48, !10, i64 52, !10, i64 56, !10, i64 60, !10, i64 64, !11, i64 72}
!8 = !{!"omnipotent char", !9, i64 0}
!9 = !{!"Simple C/C++ TBAA"}
!10 = !{!"int", !8, i64 0}
!11 = !{!"any pointer", !8, i64 0}
!12 = !{!6, !11, i64 104}


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