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

; 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.c_lst_pockets = type { ptr, ptr, ptr, i64, ptr }
%struct.node_pocket = type { ptr, ptr, ptr }

@.str.3 = external hidden unnamed_addr constant [31 x i8], align 1
@.str.4 = external hidden unnamed_addr constant [15 x i8], align 1

; 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
declare i32 @fprintf(ptr noundef, ptr noundef, ...) #1

; Function Attrs: nounwind uwtable
declare dso_local void @print_pocket(ptr noundef, ptr noundef) #2

; Function Attrs: nounwind uwtable
define dso_local void @print_pockets_inv(ptr noundef %0, ptr noundef %1) #2 {
  %3 = alloca ptr, align 8
  %4 = alloca ptr, align 8
  %5 = alloca ptr, align 8
  store ptr %0, ptr %3, align 8, !tbaa !5
  store ptr %1, ptr %4, align 8, !tbaa !5
  %6 = load ptr, ptr %4, align 8, !tbaa !5
  %7 = icmp ne ptr %6, null
  br i1 %7, label %8, label %26

8:                                                ; preds = %2
  %9 = load ptr, ptr %3, align 8, !tbaa !5
  %10 = call i32 (ptr, ptr, ...) @fprintf(ptr noundef %9, ptr noundef @.str.4) #3
  call void @llvm.lifetime.start.p0(i64 8, ptr %5) #3
  %11 = load ptr, ptr %4, align 8, !tbaa !5
  %12 = getelementptr inbounds %struct.c_lst_pockets, ptr %11, i32 0, i32 1
  %13 = load ptr, ptr %12, align 8, !tbaa !9
  store ptr %13, ptr %5, align 8, !tbaa !5
  br label %14

14:                                               ; preds = %17, %8
  %15 = load ptr, ptr %5, align 8, !tbaa !5
  %16 = icmp ne ptr %15, null
  br i1 %16, label %17, label %25

17:                                               ; preds = %14
  %18 = load ptr, ptr %3, align 8, !tbaa !5
  %19 = load ptr, ptr %5, align 8, !tbaa !5
  %20 = getelementptr inbounds %struct.node_pocket, ptr %19, i32 0, i32 2
  %21 = load ptr, ptr %20, align 8, !tbaa !12
  call void @print_pocket(ptr noundef %18, ptr noundef %21)
  %22 = load ptr, ptr %5, align 8, !tbaa !5
  %23 = getelementptr inbounds %struct.node_pocket, ptr %22, i32 0, i32 1
  %24 = load ptr, ptr %23, align 8, !tbaa !14
  store ptr %24, ptr %5, align 8, !tbaa !5
  br label %14, !llvm.loop !15

25:                                               ; preds = %14
  call void @llvm.lifetime.end.p0(i64 8, ptr %5) #3
  br label %29

26:                                               ; preds = %2
  %27 = load ptr, ptr %3, align 8, !tbaa !5
  %28 = call i32 (ptr, ptr, ...) @fprintf(ptr noundef %27, ptr noundef @.str.3) #3
  br label %29

29:                                               ; preds = %26, %25
  ret void
}

attributes #0 = { nocallback nofree nosync nounwind willreturn memory(argmem: readwrite) }
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, !6, i64 8}
!10 = !{!"c_lst_pockets", !6, i64 0, !6, i64 8, !6, i64 16, !11, i64 24, !6, i64 32}
!11 = !{!"long", !7, i64 0}
!12 = !{!13, !6, i64 16}
!13 = !{!"node_pocket", !6, i64 0, !6, i64 8, !6, i64 16}
!14 = !{!13, !6, i64 8}
!15 = distinct !{!15, !16}
!16 = !{!"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"

@.str.3 = external hidden unnamed_addr constant [31 x i8], align 1
@.str.4 = external hidden unnamed_addr constant [15 x i8], align 1

; Function Attrs: nofree nounwind
declare noundef i32 @fprintf(ptr nocapture noundef, ptr nocapture noundef readonly, ...) local_unnamed_addr #0

; Function Attrs: nounwind uwtable
declare dso_local void @print_pocket(ptr noundef, ptr noundef) local_unnamed_addr #1

; Function Attrs: nounwind uwtable
define dso_local void @print_pockets_inv(ptr noundef %0, ptr noundef readonly %1) local_unnamed_addr #1 {
  %.not = icmp eq ptr %1, null
  br i1 %.not, label %7, label %3

3:                                                ; preds = %2
  %4 = tail call i32 (ptr, ptr, ...) @fprintf(ptr noundef %0, ptr noundef nonnull @.str.4) #2
  %.0.in10 = getelementptr inbounds i8, ptr %1, i64 8
  %.011 = load ptr, ptr %.0.in10, align 8, !tbaa !5
  %.not912 = icmp eq ptr %.011, null
  br i1 %.not912, label %.loopexit, label %.lr.ph

.lr.ph:                                           ; preds = %3, %.lr.ph
  %.013 = phi ptr [ %.0, %.lr.ph ], [ %.011, %3 ]
  %5 = getelementptr inbounds i8, ptr %.013, i64 16
  %6 = load ptr, ptr %5, align 8, !tbaa !9
  tail call void @print_pocket(ptr noundef %0, ptr noundef %6)
  %.0.in = getelementptr inbounds i8, ptr %.013, i64 8
  %.0 = load ptr, ptr %.0.in, align 8, !tbaa !5
  %.not9 = icmp eq ptr %.0, null
  br i1 %.not9, label %.loopexit, label %.lr.ph, !llvm.loop !11

7:                                                ; preds = %2
  %8 = tail call i32 (ptr, ptr, ...) @fprintf(ptr noundef %0, ptr noundef nonnull @.str.3) #2
  br label %.loopexit

.loopexit:                                        ; preds = %.lr.ph, %3, %7
  ret void
}

attributes #0 = { 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" }
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 16}
!10 = !{!"node_pocket", !6, i64 0, !6, i64 8, !6, i64 16}
!11 = distinct !{!11, !12}
!12 = !{!"llvm.loop.mustprogress"}


; Effective O3 passes: GlobalOptPass,InferFunctionAttrsPass,InstCombinePass,JumpThreadingPass,LoopRotatePass,LoopSimplifyPass,LoopUnrollPass,PostOrderFunctionAttrsPass,SROAPass,SimplifyCFGPass,TailCallElimPass