; LLVM IR from krig/LISP :: komplott (builtin_sum)

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

@.str.2 = external hidden unnamed_addr constant [1 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 uwtable
declare dso_local ptr @itos(i64 noundef) #1

; Function Attrs: nounwind uwtable
declare dso_local ptr @new_atom(ptr noundef) #1

; Function Attrs: nounwind uwtable
define dso_local ptr @builtin_sum(ptr noundef %0) #1 {
  %2 = alloca ptr, align 8
  %3 = alloca i64, align 8
  store ptr %0, ptr %2, align 8, !tbaa !5
  call void @llvm.lifetime.start.p0(i64 8, ptr %3) #3
  store i64 0, ptr %3, align 8, !tbaa !9
  br label %4

4:                                                ; preds = %31, %1
  %5 = load ptr, ptr %2, align 8, !tbaa !5
  %6 = icmp ne ptr %5, null
  br i1 %6, label %7, label %35

7:                                                ; preds = %4
  %8 = load ptr, ptr %2, align 8, !tbaa !5
  %9 = getelementptr inbounds %struct.object_t, ptr %8, i32 0, i32 0
  %10 = load ptr, ptr %9, align 8, !tbaa !11
  %11 = icmp ne ptr %10, null
  br i1 %11, label %12, label %25

12:                                               ; preds = %7
  %13 = load ptr, ptr %2, align 8, !tbaa !5
  %14 = getelementptr inbounds %struct.object_t, ptr %13, i32 0, i32 0
  %15 = load ptr, ptr %14, align 8, !tbaa !11
  %16 = getelementptr inbounds %struct.object_t, ptr %15, i32 0, i32 2
  %17 = load i32, ptr %16, align 8, !tbaa !14
  %18 = icmp eq i32 %17, 1
  br i1 %18, label %19, label %25

19:                                               ; preds = %12
  %20 = load ptr, ptr %2, align 8, !tbaa !5
  %21 = getelementptr inbounds %struct.object_t, ptr %20, i32 0, i32 0
  %22 = load ptr, ptr %21, align 8, !tbaa !11
  %23 = getelementptr inbounds %struct.object_t, ptr %22, i32 0, i32 0
  %24 = load ptr, ptr %23, align 8, !tbaa !11
  br label %26

25:                                               ; preds = %12, %7
  br label %26

26:                                               ; preds = %25, %19
  %27 = phi ptr [ %24, %19 ], [ @.str.2, %25 ]
  %28 = call i64 @atol(ptr noundef %27) #4
  %29 = load i64, ptr %3, align 8, !tbaa !9
  %30 = add nsw i64 %29, %28
  store i64 %30, ptr %3, align 8, !tbaa !9
  br label %31

31:                                               ; preds = %26
  %32 = load ptr, ptr %2, align 8, !tbaa !5
  %33 = getelementptr inbounds %struct.object_t, ptr %32, i32 0, i32 1
  %34 = load ptr, ptr %33, align 8, !tbaa !15
  store ptr %34, ptr %2, align 8, !tbaa !5
  br label %4, !llvm.loop !16

35:                                               ; preds = %4
  %36 = load i64, ptr %3, align 8, !tbaa !9
  %37 = call ptr @itos(i64 noundef %36)
  %38 = call ptr @new_atom(ptr noundef %37)
  call void @llvm.lifetime.end.p0(i64 8, ptr %3) #3
  ret ptr %38
}

; Function Attrs: inlinehint nounwind willreturn memory(read) uwtable
declare i64 @atol(ptr noundef nonnull) #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 = { inlinehint nounwind willreturn memory(read) 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 }
attributes #4 = { nounwind willreturn memory(read) }

!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 = !{!"long", !7, i64 0}
!11 = !{!12, !6, i64 0}
!12 = !{!"object_t", !6, i64 0, !6, i64 8, !13, i64 16}
!13 = !{!"int", !7, i64 0}
!14 = !{!12, !13, i64 16}
!15 = !{!12, !6, i64 8}
!16 = distinct !{!16, !17}
!17 = !{!"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.2 = external hidden unnamed_addr constant [1 x i8], align 1

; Function Attrs: nounwind uwtable
declare dso_local ptr @itos(i64 noundef) local_unnamed_addr #0

; Function Attrs: nounwind uwtable
declare dso_local ptr @new_atom(ptr noundef) local_unnamed_addr #0

; Function Attrs: nounwind uwtable
define dso_local ptr @builtin_sum(ptr noundef readonly %0) local_unnamed_addr #0 {
  %.not9 = icmp eq ptr %0, null
  br i1 %.not9, label %._crit_edge, label %.lr.ph

.lr.ph:                                           ; preds = %1, %9
  %.011 = phi i64 [ %12, %9 ], [ 0, %1 ]
  %.0610 = phi ptr [ %14, %9 ], [ %0, %1 ]
  %2 = load ptr, ptr %.0610, align 8, !tbaa !5
  %.not8 = icmp eq ptr %2, null
  br i1 %.not8, label %9, label %3

3:                                                ; preds = %.lr.ph
  %4 = getelementptr inbounds i8, ptr %2, i64 16
  %5 = load i32, ptr %4, align 8, !tbaa !11
  %6 = icmp eq i32 %5, 1
  br i1 %6, label %7, label %9

7:                                                ; preds = %3
  %8 = load ptr, ptr %2, align 8, !tbaa !5
  br label %9

9:                                                ; preds = %.lr.ph, %3, %7
  %10 = phi ptr [ %8, %7 ], [ @.str.2, %3 ], [ @.str.2, %.lr.ph ]
  %11 = tail call i64 @atol(ptr nocapture noundef %10) #2
  %12 = add nsw i64 %11, %.011
  %13 = getelementptr inbounds i8, ptr %.0610, i64 8
  %14 = load ptr, ptr %13, align 8, !tbaa !12
  %.not = icmp eq ptr %14, null
  br i1 %.not, label %._crit_edge, label %.lr.ph, !llvm.loop !13

._crit_edge:                                      ; preds = %9, %1
  %.0.lcssa = phi i64 [ 0, %1 ], [ %12, %9 ]
  %15 = tail call ptr @itos(i64 noundef %.0.lcssa)
  %16 = tail call ptr @new_atom(ptr noundef %15)
  ret ptr %16
}

; Function Attrs: inlinehint mustprogress nofree nounwind willreturn memory(read) uwtable
declare i64 @atol(ptr nocapture noundef nonnull) 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 mustprogress nofree nounwind willreturn memory(read) 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 willreturn memory(read) }

!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 = !{!"object_t", !7, i64 0, !7, i64 8, !10, i64 16}
!7 = !{!"any pointer", !8, i64 0}
!8 = !{!"omnipotent char", !9, i64 0}
!9 = !{!"Simple C/C++ TBAA"}
!10 = !{!"int", !8, i64 0}
!11 = !{!6, !10, i64 16}
!12 = !{!6, !7, i64 8}
!13 = distinct !{!13, !14}
!14 = !{!"llvm.loop.mustprogress"}


; Effective O3 passes: EarlyCSEPass,GVNPass,GlobalOptPass,InferFunctionAttrsPass,InstCombinePass,InstSimplifyPass,JumpThreadingPass,LCSSAPass,LoopRotatePass,LoopSimplifyPass,LoopUnrollPass,PostOrderFunctionAttrsPass,ReassociatePass,SROAPass,SimplifyCFGPass,TailCallElimPass