; LLVM IR from CactiLab/Sherloc-Cortex-M-CFVD :: Sherloc_runtime/evaluation/src/sglib_rbtree (rbtree)

; 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.rbtree = type { i32, i8, ptr, 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 i32 @sglib_rbtree_is_member(ptr noundef %0, ptr noundef %1) #1 {
  %3 = alloca i32, align 4
  %4 = alloca ptr, align 8
  %5 = alloca ptr, align 8
  %6 = alloca i32, align 4
  %7 = alloca i32, align 4
  store ptr %0, ptr %4, align 8, !tbaa !5
  store ptr %1, ptr %5, align 8, !tbaa !5
  call void @llvm.lifetime.start.p0(i64 4, ptr %6) #2
  br label %8

8:                                                ; preds = %48, %2
  %9 = load ptr, ptr %4, align 8, !tbaa !5
  %10 = icmp ne ptr %9, null
  br i1 %10, label %11, label %49

11:                                               ; preds = %8
  %12 = load ptr, ptr %5, align 8, !tbaa !5
  %13 = getelementptr inbounds %struct.rbtree, ptr %12, i32 0, i32 0
  %14 = load i32, ptr %13, align 8, !tbaa !9
  %15 = load ptr, ptr %4, align 8, !tbaa !5
  %16 = getelementptr inbounds %struct.rbtree, ptr %15, i32 0, i32 0
  %17 = load i32, ptr %16, align 8, !tbaa !9
  %18 = sub nsw i32 %14, %17
  store i32 %18, ptr %6, align 4, !tbaa !12
  %19 = load i32, ptr %6, align 4, !tbaa !12
  %20 = icmp slt i32 %19, 0
  br i1 %20, label %28, label %21

21:                                               ; preds = %11
  %22 = load i32, ptr %6, align 4, !tbaa !12
  %23 = icmp eq i32 %22, 0
  br i1 %23, label %24, label %32

24:                                               ; preds = %21
  %25 = load ptr, ptr %5, align 8, !tbaa !5
  %26 = load ptr, ptr %4, align 8, !tbaa !5
  %27 = icmp ult ptr %25, %26
  br i1 %27, label %28, label %32

28:                                               ; preds = %24, %11
  %29 = load ptr, ptr %4, align 8, !tbaa !5
  %30 = getelementptr inbounds %struct.rbtree, ptr %29, i32 0, i32 2
  %31 = load ptr, ptr %30, align 8, !tbaa !13
  store ptr %31, ptr %4, align 8, !tbaa !5
  br label %48

32:                                               ; preds = %24, %21
  %33 = load i32, ptr %6, align 4, !tbaa !12
  %34 = icmp sgt i32 %33, 0
  br i1 %34, label %42, label %35

35:                                               ; preds = %32
  %36 = load i32, ptr %6, align 4, !tbaa !12
  %37 = icmp eq i32 %36, 0
  br i1 %37, label %38, label %46

38:                                               ; preds = %35
  %39 = load ptr, ptr %5, align 8, !tbaa !5
  %40 = load ptr, ptr %4, align 8, !tbaa !5
  %41 = icmp ugt ptr %39, %40
  br i1 %41, label %42, label %46

42:                                               ; preds = %38, %32
  %43 = load ptr, ptr %4, align 8, !tbaa !5
  %44 = getelementptr inbounds %struct.rbtree, ptr %43, i32 0, i32 3
  %45 = load ptr, ptr %44, align 8, !tbaa !14
  store ptr %45, ptr %4, align 8, !tbaa !5
  br label %47

46:                                               ; preds = %38, %35
  store i32 1, ptr %3, align 4
  store i32 1, ptr %7, align 4
  br label %50

47:                                               ; preds = %42
  br label %48

48:                                               ; preds = %47, %28
  br label %8, !llvm.loop !15

49:                                               ; preds = %8
  store i32 0, ptr %3, align 4
  store i32 1, ptr %7, align 4
  br label %50

50:                                               ; preds = %49, %46
  call void @llvm.lifetime.end.p0(i64 4, ptr %6) #2
  %51 = load i32, ptr %3, align 4
  ret i32 %51
}

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 = !{!"any pointer", !7, i64 0}
!7 = !{!"omnipotent char", !8, i64 0}
!8 = !{!"Simple C/C++ TBAA"}
!9 = !{!10, !11, i64 0}
!10 = !{!"rbtree", !11, i64 0, !7, i64 4, !6, i64 8, !6, i64 16}
!11 = !{!"int", !7, i64 0}
!12 = !{!11, !11, i64 0}
!13 = !{!10, !6, i64 8}
!14 = !{!10, !6, i64 16}
!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"

; Function Attrs: nofree norecurse nosync nounwind memory(read, inaccessiblemem: none) uwtable
define dso_local range(i32 0, 2) i32 @sglib_rbtree_is_member(ptr noundef readonly %0, ptr noundef readonly %1) local_unnamed_addr #0 {
  %.not17 = icmp eq ptr %0, null
  br i1 %.not17, label %._crit_edge, label %.lr.ph

.lr.ph:                                           ; preds = %2
  %3 = load i32, ptr %1, align 8, !tbaa !5
  br label %4

4:                                                ; preds = %.lr.ph, %12
  %.01318 = phi ptr [ %0, %.lr.ph ], [ %.1, %12 ]
  %5 = load i32, ptr %.01318, align 8, !tbaa !5
  %6 = icmp slt i32 %3, %5
  br i1 %6, label %12, label %7

7:                                                ; preds = %4
  %8 = icmp eq i32 %3, %5
  %9 = icmp ugt ptr %.01318, %1
  %or.cond = and i1 %9, %8
  br i1 %or.cond, label %12, label %10

10:                                               ; preds = %7
  %.not15 = icmp ne i32 %3, %5
  %11 = icmp ult ptr %.01318, %1
  %or.cond16 = or i1 %11, %.not15
  br i1 %or.cond16, label %12, label %._crit_edge

12:                                               ; preds = %10, %4, %7
  %.sink = phi i64 [ 8, %7 ], [ 8, %4 ], [ 16, %10 ]
  %13 = getelementptr inbounds i8, ptr %.01318, i64 %.sink
  %.1 = load ptr, ptr %13, align 8, !tbaa !11
  %.not = icmp eq ptr %.1, null
  br i1 %.not, label %._crit_edge, label %4, !llvm.loop !12

._crit_edge:                                      ; preds = %10, %12, %2
  %.0 = phi i32 [ 0, %2 ], [ 0, %12 ], [ 1, %10 ]
  ret i32 %.0
}

attributes #0 = { nofree norecurse nosync nounwind 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 = !{!"rbtree", !7, i64 0, !8, i64 4, !10, i64 8, !10, i64 16}
!7 = !{!"int", !8, i64 0}
!8 = !{!"omnipotent char", !9, i64 0}
!9 = !{!"Simple C/C++ TBAA"}
!10 = !{!"any pointer", !8, i64 0}
!11 = !{!10, !10, i64 0}
!12 = distinct !{!12, !13}
!13 = !{!"llvm.loop.mustprogress"}


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