; LLVM IR from niessner/Matterport :: code/gaps/apps/mpview/mp.ll (ZNK7MPHouse12FindCategoryEPKc)

; 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.MPHouse = type { %class.RNArray.0, %class.RNArray.1, %class.RNArray.2, %class.RNArray.3, %class.RNArray.4, %class.RNArray.5, %class.RNArray.6, %class.RNArray.7, %class.RNArray.8, %class.RNArray.9, %class.RGBDConfiguration, ptr, ptr, %class.R3Box, ptr, ptr }
%class.RNArray.0 = type { %class.RNVArray }
%class.RNVArray = type { ptr, i32, i32 }
%class.RNArray.1 = type { %class.RNVArray }
%class.RNArray.2 = type { %class.RNVArray }
%class.RNArray.3 = type { %class.RNVArray }
%class.RNArray.4 = type { %class.RNVArray }
%class.RNArray.5 = type { %class.RNVArray }
%class.RNArray.6 = type { %class.RNVArray }
%class.RNArray.7 = type { %class.RNVArray }
%class.RNArray.8 = type { %class.RNVArray }
%class.RNArray.9 = type { %class.RNVArray }
%class.RGBDConfiguration = type { ptr, %class.RNArray.10, %class.RNArray.11, ptr, ptr, ptr, ptr, %class.R3Box }
%class.RNArray.10 = type { %class.RNVArray }
%class.RNArray.11 = type { %class.RNVArray }
%class.R3Box = type { %class.R3Solid, %class.R3Point, %class.R3Point }
%class.R3Solid = type { %class.R3Shape }
%class.R3Shape = type { ptr }
%class.R3Point = type { [3 x double] }
%struct.MPCategory = type { ptr, i32, %class.RNArray.4, i32, ptr, i32, ptr }

; Function Attrs: inlinehint mustprogress nounwind uwtable
declare dso_local noundef i32 @_ZNK8RNVArray8NEntriesEv(ptr noundef nonnull align 8 dereferenceable(16)) #0 align 2

; Function Attrs: nocallback nofree nosync nounwind willreturn memory(argmem: readwrite)
declare void @llvm.lifetime.start.p0(i64 immarg, ptr nocapture) #1

; Function Attrs: nocallback nofree nosync nounwind willreturn memory(argmem: readwrite)
declare void @llvm.lifetime.end.p0(i64 immarg, ptr nocapture) #1

; Function Attrs: mustprogress uwtable
declare dso_local noundef ptr @_ZNK7RNArrayIP10MPCategoryE3KthEi(ptr noundef nonnull align 8 dereferenceable(16), i32 noundef) #2 align 2

; Function Attrs: mustprogress uwtable
define dso_local noundef ptr @_ZNK7MPHouse12FindCategoryEPKc(ptr noundef nonnull align 8 dereferenceable(376) %0, ptr noundef %1) #2 align 2 {
  %3 = alloca ptr, align 8
  %4 = alloca ptr, align 8
  %5 = alloca ptr, align 8
  %6 = alloca i32, align 4
  %7 = alloca i32, align 4
  %8 = alloca ptr, align 8
  store ptr %0, ptr %4, align 8, !tbaa !5
  store ptr %1, ptr %5, align 8, !tbaa !5
  %9 = load ptr, ptr %4, align 8
  call void @llvm.lifetime.start.p0(i64 4, ptr %6) #4
  store i32 0, ptr %6, align 4, !tbaa !9
  br label %10

10:                                               ; preds = %32, %2
  %11 = load i32, ptr %6, align 4, !tbaa !9
  %12 = getelementptr inbounds %struct.MPHouse, ptr %9, i32 0, i32 2
  %13 = call noundef i32 @_ZNK8RNVArray8NEntriesEv(ptr noundef nonnull align 8 dereferenceable(16) %12)
  %14 = icmp slt i32 %11, %13
  br i1 %14, label %16, label %15

15:                                               ; preds = %10
  store i32 2, ptr %7, align 4
  br label %35

16:                                               ; preds = %10
  call void @llvm.lifetime.start.p0(i64 8, ptr %8) #4
  %17 = getelementptr inbounds %struct.MPHouse, ptr %9, i32 0, i32 2
  %18 = load i32, ptr %6, align 4, !tbaa !9
  %19 = call noundef ptr @_ZNK7RNArrayIP10MPCategoryE3KthEi(ptr noundef nonnull align 8 dereferenceable(16) %17, i32 noundef %18)
  store ptr %19, ptr %8, align 8, !tbaa !5
  %20 = load ptr, ptr %8, align 8, !tbaa !5
  %21 = getelementptr inbounds %struct.MPCategory, ptr %20, i32 0, i32 4
  %22 = load ptr, ptr %21, align 8, !tbaa !11
  %23 = load ptr, ptr %5, align 8, !tbaa !5
  %24 = call i32 @strcmp(ptr noundef %22, ptr noundef %23) #5
  %25 = icmp ne i32 %24, 0
  br i1 %25, label %28, label %26

26:                                               ; preds = %16
  %27 = load ptr, ptr %8, align 8, !tbaa !5
  store ptr %27, ptr %3, align 8
  store i32 1, ptr %7, align 4
  br label %29

28:                                               ; preds = %16
  store i32 0, ptr %7, align 4
  br label %29

29:                                               ; preds = %28, %26
  call void @llvm.lifetime.end.p0(i64 8, ptr %8) #4
  %30 = load i32, ptr %7, align 4
  switch i32 %30, label %35 [
    i32 0, label %31
  ]

31:                                               ; preds = %29
  br label %32

32:                                               ; preds = %31
  %33 = load i32, ptr %6, align 4, !tbaa !9
  %34 = add nsw i32 %33, 1
  store i32 %34, ptr %6, align 4, !tbaa !9
  br label %10, !llvm.loop !15

35:                                               ; preds = %29, %15
  call void @llvm.lifetime.end.p0(i64 4, ptr %6) #4
  %36 = load i32, ptr %7, align 4
  switch i32 %36, label %40 [
    i32 2, label %37
    i32 1, label %38
  ]

37:                                               ; preds = %35
  store ptr null, ptr %3, align 8
  br label %38

38:                                               ; preds = %37, %35
  %39 = load ptr, ptr %3, align 8
  ret ptr %39

40:                                               ; preds = %35
  unreachable
}

; Function Attrs: nounwind willreturn memory(read)
declare i32 @strcmp(ptr noundef, ptr noundef) #3

attributes #0 = { inlinehint mustprogress 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 = { nocallback nofree nosync nounwind willreturn memory(argmem: readwrite) }
attributes #2 = { mustprogress 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 willreturn memory(read) "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 #4 = { nounwind }
attributes #5 = { 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++ TBAA"}
!9 = !{!10, !10, i64 0}
!10 = !{!"int", !7, i64 0}
!11 = !{!12, !6, i64 40}
!12 = !{!"_ZTS10MPCategory", !6, i64 0, !10, i64 8, !13, i64 16, !10, i64 32, !6, i64 40, !10, i64 48, !6, i64 56}
!13 = !{!"_ZTS7RNArrayIP8MPObjectE", !14, i64 0}
!14 = !{!"_ZTS8RNVArray", !6, i64 0, !10, i64 8, !10, i64 12}
!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: inlinehint mustprogress nounwind uwtable
declare dso_local noundef i32 @_ZNK8RNVArray8NEntriesEv(ptr noundef nonnull align 8 dereferenceable(16)) local_unnamed_addr #0 align 2

; Function Attrs: mustprogress uwtable
declare dso_local noundef ptr @_ZNK7RNArrayIP10MPCategoryE3KthEi(ptr noundef nonnull align 8 dereferenceable(16), i32 noundef) local_unnamed_addr #1 align 2

; Function Attrs: mustprogress uwtable
define dso_local noundef ptr @_ZNK7MPHouse12FindCategoryEPKc(ptr noundef nonnull align 8 dereferenceable(376) %0, ptr nocapture noundef readonly %1) local_unnamed_addr #1 align 2 {
  %3 = getelementptr inbounds i8, ptr %0, i64 32
  %4 = tail call noundef i32 @_ZNK8RNVArray8NEntriesEv(ptr noundef nonnull align 8 dereferenceable(16) %3)
  %.not12 = icmp sgt i32 %4, 0
  br i1 %.not12, label %.lr.ph, label %._crit_edge

5:                                                ; preds = %.lr.ph
  %6 = add nuw nsw i32 %.01113, 1
  %7 = tail call noundef i32 @_ZNK8RNVArray8NEntriesEv(ptr noundef nonnull align 8 dereferenceable(16) %3)
  %.not = icmp slt i32 %6, %7
  br i1 %.not, label %.lr.ph, label %._crit_edge, !llvm.loop !5

.lr.ph:                                           ; preds = %2, %5
  %.01113 = phi i32 [ %6, %5 ], [ 0, %2 ]
  %8 = tail call noundef ptr @_ZNK7RNArrayIP10MPCategoryE3KthEi(ptr noundef nonnull align 8 dereferenceable(16) %3, i32 noundef %.01113)
  %9 = getelementptr inbounds i8, ptr %8, i64 40
  %10 = load ptr, ptr %9, align 8, !tbaa !7
  %11 = tail call i32 @strcmp(ptr noundef nonnull dereferenceable(1) %10, ptr noundef nonnull dereferenceable(1) %1) #3
  %.not.not = icmp eq i32 %11, 0
  br i1 %.not.not, label %._crit_edge, label %5

._crit_edge:                                      ; preds = %.lr.ph, %5, %2
  %spec.select = phi ptr [ null, %2 ], [ null, %5 ], [ %8, %.lr.ph ]
  ret ptr %spec.select
}

; Function Attrs: mustprogress nofree nounwind willreturn memory(argmem: read)
declare i32 @strcmp(ptr nocapture noundef, ptr nocapture noundef) local_unnamed_addr #2

attributes #0 = { inlinehint mustprogress 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 = { mustprogress 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 = { mustprogress nofree nounwind willreturn memory(argmem: read) "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 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 = distinct !{!5, !6}
!6 = !{!"llvm.loop.mustprogress"}
!7 = !{!8, !9, i64 40}
!8 = !{!"_ZTS10MPCategory", !9, i64 0, !12, i64 8, !13, i64 16, !12, i64 32, !9, i64 40, !12, i64 48, !9, i64 56}
!9 = !{!"any pointer", !10, i64 0}
!10 = !{!"omnipotent char", !11, i64 0}
!11 = !{!"Simple C++ TBAA"}
!12 = !{!"int", !10, i64 0}
!13 = !{!"_ZTS7RNArrayIP8MPObjectE", !14, i64 0}
!14 = !{!"_ZTS8RNVArray", !9, i64 0, !12, i64 8, !12, i64 12}


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