; LLVM IR from Discngine/fpocket :: src (voronoi)

; 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.s_clusterlib_vertices = type { ptr, ptr, [3 x double], i32, i8, i8 }

; Function Attrs: nocallback nofree nosync nounwind willreturn memory(argmem: readwrite)
declare void @llvm.lifetime.start.p0(i64 immarg, ptr nocapture) #0

; Function Attrs: nocallback nofree nosync nounwind willreturn memory(argmem: readwrite)
declare void @llvm.lifetime.end.p0(i64 immarg, ptr nocapture) #0

; Function Attrs: nounwind uwtable
define dso_local i32 @free_cluster_lib_vertices(ptr noundef %0, i32 noundef %1) #1 {
  %3 = alloca ptr, align 8
  %4 = alloca i32, align 4
  %5 = alloca i32, align 4
  store ptr %0, ptr %3, align 8, !tbaa !5
  store i32 %1, ptr %4, align 4, !tbaa !9
  call void @llvm.lifetime.start.p0(i64 4, ptr %5) #3
  %6 = load i32, ptr %4, align 4, !tbaa !9
  %7 = sub nsw i32 %6, 1
  store i32 %7, ptr %5, align 4, !tbaa !9
  br label %8

8:                                                ; preds = %26, %2
  %9 = load i32, ptr %5, align 4, !tbaa !9
  %10 = icmp sge i32 %9, 0
  br i1 %10, label %11, label %29

11:                                               ; preds = %8
  %12 = load ptr, ptr %3, align 8, !tbaa !5
  %13 = getelementptr inbounds %struct.s_clusterlib_vertices, ptr %12, i32 0, i32 0
  %14 = load ptr, ptr %13, align 8, !tbaa !11
  %15 = load i32, ptr %5, align 4, !tbaa !9
  %16 = sext i32 %15 to i64
  %17 = getelementptr inbounds ptr, ptr %14, i64 %16
  %18 = load ptr, ptr %17, align 8, !tbaa !5
  call void @my_free(ptr noundef %18)
  %19 = load ptr, ptr %3, align 8, !tbaa !5
  %20 = getelementptr inbounds %struct.s_clusterlib_vertices, ptr %19, i32 0, i32 1
  %21 = load ptr, ptr %20, align 8, !tbaa !13
  %22 = load i32, ptr %5, align 4, !tbaa !9
  %23 = sext i32 %22 to i64
  %24 = getelementptr inbounds ptr, ptr %21, i64 %23
  %25 = load ptr, ptr %24, align 8, !tbaa !5
  call void @my_free(ptr noundef %25)
  br label %26

26:                                               ; preds = %11
  %27 = load i32, ptr %5, align 4, !tbaa !9
  %28 = add nsw i32 %27, -1
  store i32 %28, ptr %5, align 4, !tbaa !9
  br label %8, !llvm.loop !14

29:                                               ; preds = %8
  %30 = load ptr, ptr %3, align 8, !tbaa !5
  %31 = getelementptr inbounds %struct.s_clusterlib_vertices, ptr %30, i32 0, i32 0
  %32 = load ptr, ptr %31, align 8, !tbaa !11
  call void @my_free(ptr noundef %32)
  %33 = load ptr, ptr %3, align 8, !tbaa !5
  %34 = getelementptr inbounds %struct.s_clusterlib_vertices, ptr %33, i32 0, i32 1
  %35 = load ptr, ptr %34, align 8, !tbaa !13
  call void @my_free(ptr noundef %35)
  %36 = load ptr, ptr %3, align 8, !tbaa !5
  call void @my_free(ptr noundef %36)
  call void @llvm.lifetime.end.p0(i64 4, ptr %5) #3
  ret i32 0
}

declare void @my_free(ptr noundef) #2

attributes #0 = { nocallback nofree nosync nounwind willreturn memory(argmem: readwrite) }
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 = { "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, !10, i64 0}
!10 = !{!"int", !7, i64 0}
!11 = !{!12, !6, i64 0}
!12 = !{!"s_clusterlib_vertices", !6, i64 0, !6, i64 8, !7, i64 16, !10, i64 40, !7, i64 44, !7, i64 45}
!13 = !{!12, !6, i64 8}
!14 = distinct !{!14, !15}
!15 = !{!"llvm.loop.mustprogress"}


; 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 noundef i32 @free_cluster_lib_vertices(ptr noundef %0, i32 noundef %1) local_unnamed_addr #0 {
  %3 = icmp sgt i32 %1, 0
  br i1 %3, label %.lr.ph, label %._crit_edge

.lr.ph:                                           ; preds = %2
  %4 = getelementptr inbounds i8, ptr %0, i64 8
  %5 = zext nneg i32 %1 to i64
  br label %6

6:                                                ; preds = %.lr.ph, %6
  %indvars.iv = phi i64 [ %5, %.lr.ph ], [ %indvars.iv.next, %6 ]
  %indvars.iv.next = add nsw i64 %indvars.iv, -1
  %7 = load ptr, ptr %0, align 8, !tbaa !5
  %8 = getelementptr inbounds ptr, ptr %7, i64 %indvars.iv.next
  %9 = load ptr, ptr %8, align 8, !tbaa !11
  tail call void @my_free(ptr noundef %9) #2
  %10 = load ptr, ptr %4, align 8, !tbaa !12
  %11 = getelementptr inbounds ptr, ptr %10, i64 %indvars.iv.next
  %12 = load ptr, ptr %11, align 8, !tbaa !11
  tail call void @my_free(ptr noundef %12) #2
  %13 = icmp ugt i64 %indvars.iv, 1
  br i1 %13, label %6, label %._crit_edge, !llvm.loop !13

._crit_edge:                                      ; preds = %6, %2
  %14 = load ptr, ptr %0, align 8, !tbaa !5
  tail call void @my_free(ptr noundef %14) #2
  %15 = getelementptr inbounds i8, ptr %0, i64 8
  %16 = load ptr, ptr %15, align 8, !tbaa !12
  tail call void @my_free(ptr noundef %16) #2
  tail call void @my_free(ptr noundef nonnull %0) #2
  ret i32 0
}

declare void @my_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 = { "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, !7, i64 0}
!6 = !{!"s_clusterlib_vertices", !7, i64 0, !7, i64 8, !8, i64 16, !10, i64 40, !8, i64 44, !8, i64 45}
!7 = !{!"any pointer", !8, i64 0}
!8 = !{!"omnipotent char", !9, i64 0}
!9 = !{!"Simple C/C++ TBAA"}
!10 = !{!"int", !8, i64 0}
!11 = !{!7, !7, i64 0}
!12 = !{!6, !7, i64 8}
!13 = distinct !{!13, !14}
!14 = !{!"llvm.loop.mustprogress"}


; Effective O3 passes: CorrelatedValuePropagationPass,EarlyCSEPass,GlobalOptPass,IPSCCPPass,IndVarSimplifyPass,InferFunctionAttrsPass,InstCombinePass,JumpThreadingPass,LICMPass,LoopRotatePass,LoopSimplifyPass,LoopUnrollPass,PostOrderFunctionAttrsPass,SROAPass,SimplifyCFGPass,TailCallElimPass