; LLVM IR from CLASS-SZ/class_sz :: class-sz/source (perturbations)

; 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.perturb_vector = type { i32, i32, i32, i32, i32, i32, i32, i32, i32, i32, i32, i32, i32, i32, i32, i32, i32, i32, i32, i32, i32, i32, i32, i32, i32, i32, i32, i32, i32, i32, i32, i32, i32, i32, i32, i32, i32, i32, i32, ptr, ptr, i32, i32, i32, i32, i32, i32, i32, ptr, ptr, ptr }

; Function Attrs: nounwind
declare void @free(ptr noundef) #0

; Function Attrs: nounwind uwtable
define dso_local i32 @perturb_vector_free(ptr noundef %0) #1 {
  %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.perturb_vector, ptr %3, i32 0, i32 39
  %5 = load ptr, ptr %4, align 8, !tbaa !9
  %6 = icmp ne ptr %5, null
  br i1 %6, label %7, label %11

7:                                                ; preds = %1
  %8 = load ptr, ptr %2, align 8, !tbaa !5
  %9 = getelementptr inbounds %struct.perturb_vector, ptr %8, i32 0, i32 39
  %10 = load ptr, ptr %9, align 8, !tbaa !9
  call void @free(ptr noundef %10) #2
  br label %11

11:                                               ; preds = %7, %1
  %12 = load ptr, ptr %2, align 8, !tbaa !5
  %13 = getelementptr inbounds %struct.perturb_vector, ptr %12, i32 0, i32 40
  %14 = load ptr, ptr %13, align 8, !tbaa !12
  %15 = icmp ne ptr %14, null
  br i1 %15, label %16, label %20

16:                                               ; preds = %11
  %17 = load ptr, ptr %2, align 8, !tbaa !5
  %18 = getelementptr inbounds %struct.perturb_vector, ptr %17, i32 0, i32 40
  %19 = load ptr, ptr %18, align 8, !tbaa !12
  call void @free(ptr noundef %19) #2
  br label %20

20:                                               ; preds = %16, %11
  %21 = load ptr, ptr %2, align 8, !tbaa !5
  %22 = getelementptr inbounds %struct.perturb_vector, ptr %21, i32 0, i32 48
  %23 = load ptr, ptr %22, align 8, !tbaa !13
  call void @free(ptr noundef %23) #2
  %24 = load ptr, ptr %2, align 8, !tbaa !5
  %25 = getelementptr inbounds %struct.perturb_vector, ptr %24, i32 0, i32 49
  %26 = load ptr, ptr %25, align 8, !tbaa !14
  call void @free(ptr noundef %26) #2
  %27 = load ptr, ptr %2, align 8, !tbaa !5
  %28 = getelementptr inbounds %struct.perturb_vector, ptr %27, i32 0, i32 50
  %29 = load ptr, ptr %28, align 8, !tbaa !15
  call void @free(ptr noundef %29) #2
  %30 = load ptr, ptr %2, align 8, !tbaa !5
  call void @free(ptr noundef %30) #2
  ret i32 0
}

attributes #0 = { 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 #1 = { 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 #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/C++ TBAA"}
!9 = !{!10, !6, i64 160}
!10 = !{!"perturb_vector", !11, i64 0, !11, i64 4, !11, i64 8, !11, i64 12, !11, i64 16, !11, i64 20, !11, i64 24, !11, i64 28, !11, i64 32, !11, i64 36, !11, i64 40, !11, i64 44, !11, i64 48, !11, i64 52, !11, i64 56, !11, i64 60, !11, i64 64, !11, i64 68, !11, i64 72, !11, i64 76, !11, i64 80, !11, i64 84, !11, i64 88, !11, i64 92, !11, i64 96, !11, i64 100, !11, i64 104, !11, i64 108, !11, i64 112, !11, i64 116, !11, i64 120, !11, i64 124, !11, i64 128, !11, i64 132, !11, i64 136, !11, i64 140, !11, i64 144, !11, i64 148, !11, i64 152, !6, i64 160, !6, i64 168, !11, i64 176, !11, i64 180, !11, i64 184, !11, i64 188, !11, i64 192, !11, i64 196, !11, i64 200, !6, i64 208, !6, i64 216, !6, i64 224}
!11 = !{!"int", !7, i64 0}
!12 = !{!10, !6, i64 168}
!13 = !{!10, !6, i64 208}
!14 = !{!10, !6, i64 216}
!15 = !{!10, !6, i64 224}


; 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 willreturn allockind("free") memory(argmem: readwrite, inaccessiblemem: readwrite)
declare void @free(ptr allocptr nocapture noundef) local_unnamed_addr #0

; Function Attrs: mustprogress nounwind willreturn uwtable
define dso_local noundef i32 @perturb_vector_free(ptr nocapture noundef %0) local_unnamed_addr #1 {
  %2 = getelementptr inbounds i8, ptr %0, i64 160
  %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 @free(ptr noundef nonnull %3) #2
  br label %5

5:                                                ; preds = %4, %1
  %6 = getelementptr inbounds i8, ptr %0, i64 168
  %7 = load ptr, ptr %6, align 8, !tbaa !11
  %.not9 = icmp eq ptr %7, null
  br i1 %.not9, label %9, label %8

8:                                                ; preds = %5
  tail call void @free(ptr noundef nonnull %7) #2
  br label %9

9:                                                ; preds = %8, %5
  %10 = getelementptr inbounds i8, ptr %0, i64 208
  %11 = load ptr, ptr %10, align 8, !tbaa !12
  tail call void @free(ptr noundef %11) #2
  %12 = getelementptr inbounds i8, ptr %0, i64 216
  %13 = load ptr, ptr %12, align 8, !tbaa !13
  tail call void @free(ptr noundef %13) #2
  %14 = getelementptr inbounds i8, ptr %0, i64 224
  %15 = load ptr, ptr %14, align 8, !tbaa !14
  tail call void @free(ptr noundef %15) #2
  tail call void @free(ptr noundef nonnull %0) #2
  ret i32 0
}

attributes #0 = { 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 #1 = { mustprogress nounwind willreturn 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 #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, !10, i64 160}
!6 = !{!"perturb_vector", !7, i64 0, !7, i64 4, !7, i64 8, !7, i64 12, !7, i64 16, !7, i64 20, !7, i64 24, !7, i64 28, !7, i64 32, !7, i64 36, !7, i64 40, !7, i64 44, !7, i64 48, !7, i64 52, !7, i64 56, !7, i64 60, !7, i64 64, !7, i64 68, !7, i64 72, !7, i64 76, !7, i64 80, !7, i64 84, !7, i64 88, !7, i64 92, !7, i64 96, !7, i64 100, !7, i64 104, !7, i64 108, !7, i64 112, !7, i64 116, !7, i64 120, !7, i64 124, !7, i64 128, !7, i64 132, !7, i64 136, !7, i64 140, !7, i64 144, !7, i64 148, !7, i64 152, !10, i64 160, !10, i64 168, !7, i64 176, !7, i64 180, !7, i64 184, !7, i64 188, !7, i64 192, !7, i64 196, !7, i64 200, !10, i64 208, !10, i64 216, !10, i64 224}
!7 = !{!"int", !8, i64 0}
!8 = !{!"omnipotent char", !9, i64 0}
!9 = !{!"Simple C/C++ TBAA"}
!10 = !{!"any pointer", !8, i64 0}
!11 = !{!6, !10, i64 168}
!12 = !{!6, !10, i64 208}
!13 = !{!6, !10, i64 216}
!14 = !{!6, !10, i64 224}


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