; LLVM IR from quantumlib/Stim :: src/stim/io/raii_file.ll (ZN4stim8RaiiFile4doneEv)

; 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.stim::RaiiFile" = type <{ ptr, i8, [7 x i8] }>

; Function Attrs: mustprogress uwtable
define dso_local void @_ZN4stim8RaiiFile4doneEv(ptr noundef nonnull align 8 dereferenceable(9) %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 %"struct.stim::RaiiFile", ptr %3, i32 0, i32 0
  %5 = load ptr, ptr %4, align 8, !tbaa !9
  %6 = icmp ne ptr %5, null
  br i1 %6, label %7, label %17

7:                                                ; preds = %1
  %8 = getelementptr inbounds %"struct.stim::RaiiFile", ptr %3, i32 0, i32 1
  %9 = load i8, ptr %8, align 8, !tbaa !12, !range !13, !noundef !14
  %10 = trunc i8 %9 to i1
  br i1 %10, label %11, label %17

11:                                               ; preds = %7
  %12 = getelementptr inbounds %"struct.stim::RaiiFile", ptr %3, i32 0, i32 0
  %13 = load ptr, ptr %12, align 8, !tbaa !9
  %14 = call i32 @fclose(ptr noundef %13)
  %15 = getelementptr inbounds %"struct.stim::RaiiFile", ptr %3, i32 0, i32 0
  store ptr null, ptr %15, align 8, !tbaa !9
  %16 = getelementptr inbounds %"struct.stim::RaiiFile", ptr %3, i32 0, i32 1
  store i8 0, ptr %16, align 8, !tbaa !12
  br label %17

17:                                               ; preds = %11, %7, %1
  ret void
}

declare i32 @fclose(ptr noundef) #1

attributes #0 = { 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 #1 = { "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, !6, i64 0}
!6 = !{!"any pointer", !7, i64 0}
!7 = !{!"omnipotent char", !8, i64 0}
!8 = !{!"Simple C++ TBAA"}
!9 = !{!10, !6, i64 0}
!10 = !{!"_ZTSN4stim8RaiiFileE", !6, i64 0, !11, i64 8}
!11 = !{!"bool", !7, i64 0}
!12 = !{!10, !11, i64 8}
!13 = !{i8 0, i8 2}
!14 = !{}


; 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 nofree nounwind uwtable
define dso_local void @_ZN4stim8RaiiFile4doneEv(ptr nocapture noundef nonnull align 8 dereferenceable(9) %0) local_unnamed_addr #0 align 2 {
  %2 = load ptr, ptr %0, align 8, !tbaa !5
  %.not = icmp eq ptr %2, null
  br i1 %.not, label %9, label %3

3:                                                ; preds = %1
  %4 = getelementptr inbounds i8, ptr %0, i64 8
  %5 = load i8, ptr %4, align 8, !tbaa !11, !range !12, !noundef !13
  %6 = trunc nuw i8 %5 to i1
  br i1 %6, label %7, label %9

7:                                                ; preds = %3
  %8 = tail call i32 @fclose(ptr noundef nonnull %2)
  store ptr null, ptr %0, align 8, !tbaa !5
  store i8 0, ptr %4, align 8, !tbaa !11
  br label %9

9:                                                ; preds = %7, %3, %1
  ret void
}

; Function Attrs: nofree nounwind
declare noundef i32 @fclose(ptr nocapture noundef) local_unnamed_addr #1

attributes #0 = { mustprogress nofree 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 = { nofree 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" }

!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 = !{!"_ZTSN4stim8RaiiFileE", !7, i64 0, !10, i64 8}
!7 = !{!"any pointer", !8, i64 0}
!8 = !{!"omnipotent char", !9, i64 0}
!9 = !{!"Simple C++ TBAA"}
!10 = !{!"bool", !8, i64 0}
!11 = !{!6, !10, i64 8}
!12 = !{i8 0, i8 2}
!13 = !{}


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