; LLVM IR from Montimage/mmt-security :: test/perf (hash)

; 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.mmt_hash_struct = type { ptr, [256 x 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 i64 @node_count(ptr noundef %0) #1 {
  %2 = alloca i64, align 8
  %3 = alloca ptr, align 8
  %4 = alloca i64, align 8
  %5 = alloca i64, align 8
  %6 = alloca i32, align 4
  store ptr %0, ptr %3, align 8, !tbaa !5
  call void @llvm.lifetime.start.p0(i64 8, ptr %4) #2
  call void @llvm.lifetime.start.p0(i64 8, ptr %5) #2
  store i64 256, ptr %5, align 8, !tbaa !9
  %7 = load ptr, ptr %3, align 8, !tbaa !5
  %8 = icmp eq ptr %7, null
  br i1 %8, label %9, label %10

9:                                                ; preds = %1
  store i64 0, ptr %2, align 8
  store i32 1, ptr %6, align 4
  br label %28

10:                                               ; preds = %1
  store i64 0, ptr %4, align 8, !tbaa !9
  br label %11

11:                                               ; preds = %23, %10
  %12 = load i64, ptr %4, align 8, !tbaa !9
  %13 = icmp ult i64 %12, 256
  br i1 %13, label %14, label %26

14:                                               ; preds = %11
  %15 = load ptr, ptr %3, align 8, !tbaa !5
  %16 = getelementptr inbounds %struct.mmt_hash_struct, ptr %15, i32 0, i32 1
  %17 = load i64, ptr %4, align 8, !tbaa !9
  %18 = getelementptr inbounds [256 x ptr], ptr %16, i64 0, i64 %17
  %19 = load ptr, ptr %18, align 8, !tbaa !5
  %20 = call i64 @node_count(ptr noundef %19)
  %21 = load i64, ptr %5, align 8, !tbaa !9
  %22 = add i64 %21, %20
  store i64 %22, ptr %5, align 8, !tbaa !9
  br label %23

23:                                               ; preds = %14
  %24 = load i64, ptr %4, align 8, !tbaa !9
  %25 = add i64 %24, 1
  store i64 %25, ptr %4, align 8, !tbaa !9
  br label %11, !llvm.loop !11

26:                                               ; preds = %11
  %27 = load i64, ptr %5, align 8, !tbaa !9
  store i64 %27, ptr %2, align 8
  store i32 1, ptr %6, align 4
  br label %28

28:                                               ; preds = %26, %9
  call void @llvm.lifetime.end.p0(i64 8, ptr %5) #2
  call void @llvm.lifetime.end.p0(i64 8, ptr %4) #2
  %29 = load i64, ptr %2, align 8
  ret i64 %29
}

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, !10, i64 0}
!10 = !{!"long", !7, i64 0}
!11 = distinct !{!11, !12}
!12 = !{!"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 nosync nounwind memory(read, inaccessiblemem: none) uwtable
define dso_local i64 @node_count(ptr noundef readonly %0) local_unnamed_addr #0 {
  %2 = icmp eq ptr %0, null
  br i1 %2, label %.loopexit, label %.preheader

.preheader:                                       ; preds = %1
  %3 = getelementptr inbounds i8, ptr %0, i64 8
  br label %4

4:                                                ; preds = %.preheader, %4
  %.011 = phi i64 [ 256, %.preheader ], [ %8, %4 ]
  %.0710 = phi i64 [ 0, %.preheader ], [ %9, %4 ]
  %5 = getelementptr inbounds [256 x ptr], ptr %3, i64 0, i64 %.0710
  %6 = load ptr, ptr %5, align 8, !tbaa !5
  %7 = tail call i64 @node_count(ptr noundef %6)
  %8 = add i64 %7, %.011
  %9 = add nuw nsw i64 %.0710, 1
  %exitcond.not = icmp eq i64 %9, 256
  br i1 %exitcond.not, label %.loopexit, label %4, !llvm.loop !9

.loopexit:                                        ; preds = %4, %1
  %.08 = phi i64 [ 0, %1 ], [ %8, %4 ]
  ret i64 %.08
}

attributes #0 = { nofree 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, !6, i64 0}
!6 = !{!"any pointer", !7, i64 0}
!7 = !{!"omnipotent char", !8, i64 0}
!8 = !{!"Simple C/C++ TBAA"}
!9 = distinct !{!9, !10}
!10 = !{!"llvm.loop.mustprogress"}


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