; LLVM IR from pmwkaa/monotone :: monotone/engine/wal (wal)

; 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.Wal = type { %struct.Mutex, %struct.WalId, ptr }
%struct.Mutex = type { %union.pthread_mutex_t }
%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 }
%struct.WalId = type { %struct.Spinlock, i32, %struct.Buf }
%struct.Spinlock = type { i32 }
%struct.Buf = type { ptr, ptr, ptr }

; Function Attrs: nounwind uwtable
define dso_local void @wal_free(ptr noundef %0) #0 {
  %2 = alloca ptr, align 8
  %3 = alloca ptr, align 8
  store ptr %0, ptr %2, align 8, !tbaa !5
  %4 = load ptr, ptr %2, align 8, !tbaa !5
  %5 = getelementptr inbounds %struct.Wal, ptr %4, i32 0, i32 2
  %6 = load ptr, ptr %5, align 8, !tbaa !9
  %7 = icmp ne ptr %6, null
  br i1 %7, label %8, label %16

8:                                                ; preds = %1
  call void @llvm.lifetime.start.p0(i64 8, ptr %3) #3
  %9 = load ptr, ptr %2, align 8, !tbaa !5
  %10 = getelementptr inbounds %struct.Wal, ptr %9, i32 0, i32 2
  %11 = load ptr, ptr %10, align 8, !tbaa !9
  store ptr %11, ptr %3, align 8, !tbaa !5
  %12 = load ptr, ptr %3, align 8, !tbaa !5
  call void @wal_file_close(ptr noundef %12)
  %13 = load ptr, ptr %3, align 8, !tbaa !5
  call void @wal_file_free(ptr noundef %13)
  %14 = load ptr, ptr %2, align 8, !tbaa !5
  %15 = getelementptr inbounds %struct.Wal, ptr %14, i32 0, i32 2
  store ptr null, ptr %15, align 8, !tbaa !9
  call void @llvm.lifetime.end.p0(i64 8, ptr %3) #3
  br label %16

16:                                               ; preds = %8, %1
  %17 = load ptr, ptr %2, align 8, !tbaa !5
  %18 = getelementptr inbounds %struct.Wal, ptr %17, i32 0, i32 1
  call void @wal_id_free(ptr noundef %18)
  %19 = load ptr, ptr %2, align 8, !tbaa !5
  %20 = getelementptr inbounds %struct.Wal, ptr %19, i32 0, i32 0
  call void @mutex_free(ptr noundef %20)
  ret void
}

; Function Attrs: nocallback nofree nosync nounwind willreturn memory(argmem: readwrite)
declare void @llvm.lifetime.start.p0(i64 immarg, ptr nocapture) #1

; Function Attrs: inlinehint nounwind uwtable
declare hidden void @wal_file_close(ptr noundef) #2

; Function Attrs: inlinehint nounwind uwtable
declare hidden void @wal_file_free(ptr noundef) #2

; Function Attrs: nocallback nofree nosync nounwind willreturn memory(argmem: readwrite)
declare void @llvm.lifetime.end.p0(i64 immarg, ptr nocapture) #1

; Function Attrs: inlinehint nounwind uwtable
declare hidden void @wal_id_free(ptr noundef) #2

; Function Attrs: inlinehint nounwind uwtable
declare hidden void @mutex_free(ptr noundef) #2

attributes #0 = { 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 = { 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 #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, !6, i64 72}
!10 = !{!"Wal", !11, i64 0, !12, i64 40, !6, i64 72}
!11 = !{!"Mutex", !7, i64 0}
!12 = !{!"WalId", !13, i64 0, !14, i64 4, !15, i64 8}
!13 = !{!"Spinlock", !14, i64 0}
!14 = !{!"int", !7, i64 0}
!15 = !{!"Buf", !6, i64 0, !6, i64 8, !6, i64 16}


; 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: nounwind uwtable
define dso_local void @wal_free(ptr noundef %0) local_unnamed_addr #0 {
  %2 = getelementptr inbounds i8, ptr %0, i64 72
  %3 = load ptr, ptr %2, align 8, !tbaa !5
  %.not = icmp eq ptr %3, null
  br i1 %.not, label %5, label %4

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

5:                                                ; preds = %4, %1
  %6 = getelementptr inbounds i8, ptr %0, i64 40
  tail call void @wal_id_free(ptr noundef nonnull %6)
  tail call void @mutex_free(ptr noundef nonnull %0)
  ret void
}

; Function Attrs: inlinehint nounwind uwtable
declare hidden void @wal_file_close(ptr noundef) local_unnamed_addr #1

; Function Attrs: inlinehint nounwind uwtable
declare hidden void @wal_file_free(ptr noundef) local_unnamed_addr #1

; Function Attrs: inlinehint nounwind uwtable
declare hidden void @wal_id_free(ptr noundef) local_unnamed_addr #1

; Function Attrs: inlinehint nounwind uwtable
declare hidden void @mutex_free(ptr noundef) local_unnamed_addr #1

attributes #0 = { 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 = { 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" }

!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, !14, i64 72}
!6 = !{!"Wal", !7, i64 0, !10, i64 40, !14, i64 72}
!7 = !{!"Mutex", !8, i64 0}
!8 = !{!"omnipotent char", !9, i64 0}
!9 = !{!"Simple C/C++ TBAA"}
!10 = !{!"WalId", !11, i64 0, !12, i64 4, !13, i64 8}
!11 = !{!"Spinlock", !12, i64 0}
!12 = !{!"int", !8, i64 0}
!13 = !{!"Buf", !14, i64 0, !14, i64 8, !14, i64 16}
!14 = !{!"any pointer", !8, i64 0}


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