; LLVM IR from niessner/Matterport :: code/gaps/pkgs/R3Shapes/ply.ll (Z13find_propertyP10PlyElementPcPi)

; 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.PlyElement = type { ptr, i32, i32, i32, ptr, ptr, i32, i32 }
%struct.PlyProperty = type { ptr, i32, i32, i32, i32, i32, i32, i32 }

; 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: mustprogress nounwind uwtable
declare dso_local i32 @equal_strings(ptr noundef, ptr noundef) #1

; Function Attrs: mustprogress nounwind uwtable
define dso_local noundef ptr @_Z13find_propertyP10PlyElementPcPi(ptr noundef %0, ptr noundef %1, ptr noundef %2) #1 {
  %4 = alloca ptr, align 8
  %5 = alloca ptr, align 8
  %6 = alloca ptr, align 8
  %7 = alloca ptr, align 8
  %8 = alloca i32, align 4
  %9 = alloca i32, align 4
  store ptr %0, ptr %5, align 8, !tbaa !5
  store ptr %1, ptr %6, align 8, !tbaa !5
  store ptr %2, ptr %7, align 8, !tbaa !5
  call void @llvm.lifetime.start.p0(i64 4, ptr %8) #2
  store i32 0, ptr %8, align 4, !tbaa !9
  br label %10

10:                                               ; preds = %40, %3
  %11 = load i32, ptr %8, align 4, !tbaa !9
  %12 = load ptr, ptr %5, align 8, !tbaa !5
  %13 = getelementptr inbounds %struct.PlyElement, ptr %12, i32 0, i32 3
  %14 = load i32, ptr %13, align 8, !tbaa !11
  %15 = icmp slt i32 %11, %14
  br i1 %15, label %16, label %43

16:                                               ; preds = %10
  %17 = load ptr, ptr %6, align 8, !tbaa !5
  %18 = load ptr, ptr %5, align 8, !tbaa !5
  %19 = getelementptr inbounds %struct.PlyElement, ptr %18, i32 0, i32 4
  %20 = load ptr, ptr %19, align 8, !tbaa !13
  %21 = load i32, ptr %8, align 4, !tbaa !9
  %22 = sext i32 %21 to i64
  %23 = getelementptr inbounds ptr, ptr %20, i64 %22
  %24 = load ptr, ptr %23, align 8, !tbaa !5
  %25 = getelementptr inbounds %struct.PlyProperty, ptr %24, i32 0, i32 0
  %26 = load ptr, ptr %25, align 8, !tbaa !14
  %27 = call i32 @equal_strings(ptr noundef %17, ptr noundef %26)
  %28 = icmp ne i32 %27, 0
  br i1 %28, label %29, label %39

29:                                               ; preds = %16
  %30 = load i32, ptr %8, align 4, !tbaa !9
  %31 = load ptr, ptr %7, align 8, !tbaa !5
  store i32 %30, ptr %31, align 4, !tbaa !9
  %32 = load ptr, ptr %5, align 8, !tbaa !5
  %33 = getelementptr inbounds %struct.PlyElement, ptr %32, i32 0, i32 4
  %34 = load ptr, ptr %33, align 8, !tbaa !13
  %35 = load i32, ptr %8, align 4, !tbaa !9
  %36 = sext i32 %35 to i64
  %37 = getelementptr inbounds ptr, ptr %34, i64 %36
  %38 = load ptr, ptr %37, align 8, !tbaa !5
  store ptr %38, ptr %4, align 8
  store i32 1, ptr %9, align 4
  br label %45

39:                                               ; preds = %16
  br label %40

40:                                               ; preds = %39
  %41 = load i32, ptr %8, align 4, !tbaa !9
  %42 = add nsw i32 %41, 1
  store i32 %42, ptr %8, align 4, !tbaa !9
  br label %10, !llvm.loop !16

43:                                               ; preds = %10
  %44 = load ptr, ptr %7, align 8, !tbaa !5
  store i32 -1, ptr %44, align 4, !tbaa !9
  store ptr null, ptr %4, align 8
  store i32 1, ptr %9, align 4
  br label %45

45:                                               ; preds = %43, %29
  call void @llvm.lifetime.end.p0(i64 4, ptr %8) #2
  %46 = load ptr, ptr %4, align 8
  ret ptr %46
}

attributes #0 = { nocallback nofree nosync nounwind willreturn memory(argmem: readwrite) }
attributes #1 = { 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 #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++ TBAA"}
!9 = !{!10, !10, i64 0}
!10 = !{!"int", !7, i64 0}
!11 = !{!12, !10, i64 16}
!12 = !{!"_ZTS10PlyElement", !6, i64 0, !10, i64 8, !10, i64 12, !10, i64 16, !6, i64 24, !6, i64 32, !10, i64 40, !10, i64 44}
!13 = !{!12, !6, i64 24}
!14 = !{!15, !6, i64 0}
!15 = !{!"_ZTS11PlyProperty", !6, i64 0, !10, i64 8, !10, i64 12, !10, i64 16, !10, i64 20, !10, i64 24, !10, i64 28, !10, i64 32}
!16 = distinct !{!16, !17}
!17 = !{!"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: mustprogress nounwind uwtable
declare dso_local i32 @equal_strings(ptr noundef, ptr noundef) local_unnamed_addr #0

; Function Attrs: mustprogress nounwind uwtable
define dso_local noundef ptr @_Z13find_propertyP10PlyElementPcPi(ptr nocapture noundef readonly %0, ptr noundef %1, ptr nocapture noundef writeonly %2) local_unnamed_addr #0 {
  %4 = getelementptr inbounds i8, ptr %0, i64 16
  %5 = load i32, ptr %4, align 8, !tbaa !5
  %6 = icmp sgt i32 %5, 0
  br i1 %6, label %.lr.ph, label %._crit_edge

.lr.ph:                                           ; preds = %3
  %7 = getelementptr inbounds i8, ptr %0, i64 24
  br label %8

8:                                                ; preds = %.lr.ph, %19
  %indvars.iv = phi i64 [ 0, %.lr.ph ], [ %indvars.iv.next, %19 ]
  %9 = load ptr, ptr %7, align 8, !tbaa !11
  %10 = getelementptr inbounds ptr, ptr %9, i64 %indvars.iv
  %11 = load ptr, ptr %10, align 8, !tbaa !12
  %12 = load ptr, ptr %11, align 8, !tbaa !13
  %13 = tail call i32 @equal_strings(ptr noundef %1, ptr noundef %12)
  %.not = icmp eq i32 %13, 0
  br i1 %.not, label %19, label %14

14:                                               ; preds = %8
  %15 = trunc nuw nsw i64 %indvars.iv to i32
  store i32 %15, ptr %2, align 4, !tbaa !15
  %16 = load ptr, ptr %7, align 8, !tbaa !11
  %17 = getelementptr inbounds ptr, ptr %16, i64 %indvars.iv
  %18 = load ptr, ptr %17, align 8, !tbaa !12
  br label %23

19:                                               ; preds = %8
  %indvars.iv.next = add nuw nsw i64 %indvars.iv, 1
  %20 = load i32, ptr %4, align 8, !tbaa !5
  %21 = sext i32 %20 to i64
  %22 = icmp slt i64 %indvars.iv.next, %21
  br i1 %22, label %8, label %._crit_edge, !llvm.loop !16

._crit_edge:                                      ; preds = %19, %3
  store i32 -1, ptr %2, align 4, !tbaa !15
  br label %23

23:                                               ; preds = %._crit_edge, %14
  %.011 = phi ptr [ %18, %14 ], [ null, %._crit_edge ]
  ret ptr %.011
}

attributes #0 = { 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" }

!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, !10, i64 16}
!6 = !{!"_ZTS10PlyElement", !7, i64 0, !10, i64 8, !10, i64 12, !10, i64 16, !7, i64 24, !7, i64 32, !10, i64 40, !10, i64 44}
!7 = !{!"any pointer", !8, i64 0}
!8 = !{!"omnipotent char", !9, i64 0}
!9 = !{!"Simple C++ TBAA"}
!10 = !{!"int", !8, i64 0}
!11 = !{!6, !7, i64 24}
!12 = !{!7, !7, i64 0}
!13 = !{!14, !7, i64 0}
!14 = !{!"_ZTS11PlyProperty", !7, i64 0, !10, i64 8, !10, i64 12, !10, i64 16, !10, i64 20, !10, i64 24, !10, i64 28, !10, i64 32}
!15 = !{!10, !10, i64 0}
!16 = distinct !{!16, !17}
!17 = !{!"llvm.loop.mustprogress"}


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