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

; 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.bpt_node = type { ptr }
%struct.leaf_data = type { i64, i64, i64, ptr, ptr, ptr, ptr, ptr, ptr }

; Function Attrs: nounwind uwtable
define dso_local i32 @leaf_data_ends_end(ptr noundef %0, ptr noundef %1, i32 noundef %2) #0 {
  %4 = alloca i32, align 4
  %5 = alloca ptr, align 8
  %6 = alloca ptr, align 8
  %7 = alloca i32, align 4
  store ptr %0, ptr %5, align 8, !tbaa !5
  store ptr %1, ptr %6, align 8, !tbaa !5
  store i32 %2, ptr %7, align 4, !tbaa !9
  %8 = load i32, ptr %7, align 4, !tbaa !9
  %9 = icmp eq i32 %8, -1
  br i1 %9, label %10, label %11

10:                                               ; preds = %3
  store i32 0, ptr %4, align 4
  br label %36

11:                                               ; preds = %3
  %12 = load i32, ptr %7, align 4, !tbaa !9
  %13 = load ptr, ptr %6, align 8, !tbaa !5
  %14 = getelementptr inbounds %struct.bpt_node, ptr %13, i32 0, i32 0
  %15 = load ptr, ptr %14, align 8, !tbaa !11
  %16 = getelementptr inbounds i32, ptr %15, i64 5
  %17 = load i32, ptr %16, align 4, !tbaa !9
  %18 = icmp eq i32 %12, %17
  br i1 %18, label %19, label %28

19:                                               ; preds = %11
  %20 = load ptr, ptr %5, align 8, !tbaa !5
  %21 = getelementptr inbounds %struct.leaf_data, ptr %20, i32 0, i32 4
  %22 = load ptr, ptr %21, align 8, !tbaa !13
  %23 = load i32, ptr %7, align 4, !tbaa !9
  %24 = sub nsw i32 %23, 1
  %25 = sext i32 %24 to i64
  %26 = getelementptr inbounds i32, ptr %22, i64 %25
  %27 = load i32, ptr %26, align 4, !tbaa !9
  store i32 %27, ptr %4, align 4
  br label %36

28:                                               ; preds = %11
  %29 = load ptr, ptr %5, align 8, !tbaa !5
  %30 = getelementptr inbounds %struct.leaf_data, ptr %29, i32 0, i32 4
  %31 = load ptr, ptr %30, align 8, !tbaa !13
  %32 = load i32, ptr %7, align 4, !tbaa !9
  %33 = sext i32 %32 to i64
  %34 = getelementptr inbounds i32, ptr %31, i64 %33
  %35 = load i32, ptr %34, align 4, !tbaa !9
  store i32 %35, ptr %4, align 4
  br label %36

36:                                               ; preds = %28, %19, %10
  %37 = load i32, ptr %4, align 4
  ret i32 %37
}

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, !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 = !{!"bpt_node", !6, i64 0}
!13 = !{!14, !6, i64 32}
!14 = !{!"leaf_data", !15, i64 0, !15, i64 8, !15, i64 16, !6, i64 24, !6, i64 32, !6, i64 40, !6, i64 48, !6, i64 56, !6, i64 64}
!15 = !{!"long", !7, i64 0}


; 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 nofree norecurse nosync nounwind willreturn memory(read, inaccessiblemem: none) uwtable
define dso_local i32 @leaf_data_ends_end(ptr nocapture noundef readonly %0, ptr nocapture noundef readonly %1, i32 noundef %2) local_unnamed_addr #0 {
  %4 = icmp eq i32 %2, -1
  br i1 %4, label %14, label %.sink.split

.sink.split:                                      ; preds = %3
  %5 = load ptr, ptr %1, align 8, !tbaa !5
  %6 = getelementptr inbounds i8, ptr %5, i64 20
  %7 = load i32, ptr %6, align 4, !tbaa !10
  %8 = icmp eq i32 %7, %2
  %9 = getelementptr inbounds i8, ptr %0, i64 32
  %10 = load ptr, ptr %9, align 8, !tbaa !12
  %11 = sext i32 %2 to i64
  %12 = getelementptr i32, ptr %10, i64 %11
  %.sink.idx = select i1 %8, i64 -4, i64 0
  %.sink = getelementptr i8, ptr %12, i64 %.sink.idx
  %13 = load i32, ptr %.sink, align 4, !tbaa !10
  br label %14

14:                                               ; preds = %.sink.split, %3
  %.0 = phi i32 [ 0, %3 ], [ %13, %.sink.split ]
  ret i32 %.0
}

attributes #0 = { mustprogress nofree norecurse nosync nounwind willreturn memory(read, inaccessiblemem: none) 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 = !{!"bpt_node", !7, i64 0}
!7 = !{!"any pointer", !8, i64 0}
!8 = !{!"omnipotent char", !9, i64 0}
!9 = !{!"Simple C/C++ TBAA"}
!10 = !{!11, !11, i64 0}
!11 = !{!"int", !8, i64 0}
!12 = !{!13, !7, i64 32}
!13 = !{!"leaf_data", !14, i64 0, !14, i64 8, !14, i64 16, !7, i64 24, !7, i64 32, !7, i64 40, !7, i64 48, !7, i64 56, !7, i64 64}
!14 = !{!"long", !8, i64 0}


; Effective O3 passes: EarlyCSEPass,GlobalOptPass,InstCombinePass,PostOrderFunctionAttrsPass,SROAPass,SimplifyCFGPass