; LLVM IR from ryanlayer/giggle :: src (ll)

; 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.uint64_t_ll_bpt_non_leading_data = type { ptr, ptr }
%struct.uint64_t_ll = type { i64, ptr, ptr }
%struct.uint64_t_ll_node = type { i64, ptr }

; 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 void @uint64_t_ll_non_leading_union_with_SA(i32 noundef %0, ptr noundef %1, ptr noundef %2) #1 {
  %4 = alloca i32, align 4
  %5 = alloca ptr, align 8
  %6 = alloca ptr, align 8
  %7 = alloca ptr, align 8
  %8 = alloca ptr, align 8
  store i32 %0, ptr %4, align 4, !tbaa !5
  store ptr %1, ptr %5, align 8, !tbaa !9
  store ptr %2, ptr %6, align 8, !tbaa !9
  call void @llvm.lifetime.start.p0(i64 8, ptr %7) #2
  %9 = load ptr, ptr %6, align 8, !tbaa !9
  store ptr %9, ptr %7, align 8, !tbaa !9
  %10 = load ptr, ptr %7, align 8, !tbaa !9
  %11 = icmp ne ptr %10, null
  br i1 %11, label %12, label %36

12:                                               ; preds = %3
  %13 = load ptr, ptr %7, align 8, !tbaa !9
  %14 = getelementptr inbounds %struct.uint64_t_ll_bpt_non_leading_data, ptr %13, i32 0, i32 0
  %15 = load ptr, ptr %14, align 8, !tbaa !11
  %16 = icmp ne ptr %15, null
  br i1 %16, label %17, label %35

17:                                               ; preds = %12
  call void @llvm.lifetime.start.p0(i64 8, ptr %8) #2
  %18 = load ptr, ptr %7, align 8, !tbaa !9
  %19 = getelementptr inbounds %struct.uint64_t_ll_bpt_non_leading_data, ptr %18, i32 0, i32 0
  %20 = load ptr, ptr %19, align 8, !tbaa !11
  %21 = getelementptr inbounds %struct.uint64_t_ll, ptr %20, i32 0, i32 1
  %22 = load ptr, ptr %21, align 8, !tbaa !13
  store ptr %22, ptr %8, align 8, !tbaa !9
  br label %23

23:                                               ; preds = %26, %17
  %24 = load ptr, ptr %8, align 8, !tbaa !9
  %25 = icmp ne ptr %24, null
  br i1 %25, label %26, label %34

26:                                               ; preds = %23
  %27 = load ptr, ptr %5, align 8, !tbaa !9
  %28 = load ptr, ptr %8, align 8, !tbaa !9
  %29 = getelementptr inbounds %struct.uint64_t_ll_node, ptr %28, i32 0, i32 0
  %30 = load i64, ptr %29, align 8, !tbaa !16
  call void @uint64_t_ll_uniq_append(ptr noundef %27, i64 noundef %30)
  %31 = load ptr, ptr %8, align 8, !tbaa !9
  %32 = getelementptr inbounds %struct.uint64_t_ll_node, ptr %31, i32 0, i32 1
  %33 = load ptr, ptr %32, align 8, !tbaa !18
  store ptr %33, ptr %8, align 8, !tbaa !9
  br label %23, !llvm.loop !19

34:                                               ; preds = %23
  call void @llvm.lifetime.end.p0(i64 8, ptr %8) #2
  br label %35

35:                                               ; preds = %34, %12
  br label %36

36:                                               ; preds = %35, %3
  call void @llvm.lifetime.end.p0(i64 8, ptr %7) #2
  ret void
}

; Function Attrs: nounwind uwtable
declare dso_local void @uint64_t_ll_uniq_append(ptr noundef, i64 noundef) #1

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 = { 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 = !{!"int", !7, i64 0}
!7 = !{!"omnipotent char", !8, i64 0}
!8 = !{!"Simple C/C++ TBAA"}
!9 = !{!10, !10, i64 0}
!10 = !{!"any pointer", !7, i64 0}
!11 = !{!12, !10, i64 0}
!12 = !{!"uint64_t_ll_bpt_non_leading_data", !10, i64 0, !10, i64 8}
!13 = !{!14, !10, i64 8}
!14 = !{!"uint64_t_ll", !15, i64 0, !10, i64 8, !10, i64 16}
!15 = !{!"long", !7, i64 0}
!16 = !{!17, !15, i64 0}
!17 = !{!"uint64_t_ll_node", !15, i64 0, !10, i64 8}
!18 = !{!17, !10, i64 8}
!19 = distinct !{!19, !20}
!20 = !{!"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 void @uint64_t_ll_non_leading_union_with_SA(i32 noundef %0, ptr noundef %1, ptr noundef readonly %2) local_unnamed_addr #0 {
  %.not = icmp eq ptr %2, null
  br i1 %.not, label %.loopexit, label %4

4:                                                ; preds = %3
  %5 = load ptr, ptr %2, align 8, !tbaa !5
  %.not10 = icmp eq ptr %5, null
  br i1 %.not10, label %.loopexit, label %.preheader

.preheader:                                       ; preds = %4
  %.0.in12 = getelementptr inbounds i8, ptr %5, i64 8
  %.013 = load ptr, ptr %.0.in12, align 8, !tbaa !10
  %.not1114 = icmp eq ptr %.013, null
  br i1 %.not1114, label %.loopexit, label %.lr.ph

.lr.ph:                                           ; preds = %.preheader, %.lr.ph
  %.015 = phi ptr [ %.0, %.lr.ph ], [ %.013, %.preheader ]
  %6 = load i64, ptr %.015, align 8, !tbaa !11
  tail call void @uint64_t_ll_uniq_append(ptr noundef %1, i64 noundef %6)
  %.0.in = getelementptr inbounds i8, ptr %.015, i64 8
  %.0 = load ptr, ptr %.0.in, align 8, !tbaa !10
  %.not11 = icmp eq ptr %.0, null
  br i1 %.not11, label %.loopexit, label %.lr.ph, !llvm.loop !14

.loopexit:                                        ; preds = %.lr.ph, %.preheader, %4, %3
  ret void
}

; Function Attrs: nounwind uwtable
declare dso_local void @uint64_t_ll_uniq_append(ptr noundef, i64 noundef) local_unnamed_addr #0

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" }

!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 = !{!"uint64_t_ll_bpt_non_leading_data", !7, i64 0, !7, i64 8}
!7 = !{!"any pointer", !8, i64 0}
!8 = !{!"omnipotent char", !9, i64 0}
!9 = !{!"Simple C/C++ TBAA"}
!10 = !{!7, !7, i64 0}
!11 = !{!12, !13, i64 0}
!12 = !{!"uint64_t_ll_node", !13, i64 0, !7, i64 8}
!13 = !{!"long", !8, i64 0}
!14 = distinct !{!14, !15}
!15 = !{!"llvm.loop.mustprogress"}


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