; LLVM IR from ETH3D/dataset-pipeline :: thirdparty/cork/cork/isct (triangle)

; 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.osub = type { ptr, i32 }
%struct.mesh = type { %struct.memorypool, %struct.memorypool, %struct.memorypool, %struct.memorypool, %struct.memorypool, %struct.memorypool, %struct.memorypool, %struct.memorypool, [4096 x ptr], [4096 x ptr], [4096 x i32], i32, ptr, double, double, double, double, double, i32, i32, i32, i32, i32, i32, i64, i32, i32, i32, i64, i32, i32, i32, i32, i32, i32, i32, i32, i32, i64, i64, i64, i64, i64, i64, i64, ptr, ptr, ptr, ptr, ptr, ptr, ptr, %struct.otri }
%struct.memorypool = type { ptr, ptr, ptr, ptr, ptr, ptr, i32, i32, i32, i32, i64, i64, i32, i32 }
%struct.otri = type { ptr, 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: nounwind uwtable
declare dso_local void @traversalinit(ptr noundef) #1

; Function Attrs: nounwind uwtable
declare dso_local ptr @subsegtraverse(ptr noundef) #1

; Function Attrs: nounwind uwtable
declare dso_local i32 @checkseg4encroach(ptr noundef, ptr noundef, ptr noundef) #1

; Function Attrs: nounwind uwtable
define dso_local void @tallyencs(ptr noundef %0, ptr noundef %1) #1 {
  %3 = alloca ptr, align 8
  %4 = alloca ptr, align 8
  %5 = alloca %struct.osub, align 8
  %6 = alloca i32, align 4
  store ptr %0, ptr %3, align 8, !tbaa !5
  store ptr %1, ptr %4, align 8, !tbaa !5
  call void @llvm.lifetime.start.p0(i64 16, ptr %5) #2
  call void @llvm.lifetime.start.p0(i64 4, ptr %6) #2
  %7 = load ptr, ptr %3, align 8, !tbaa !5
  %8 = getelementptr inbounds %struct.mesh, ptr %7, i32 0, i32 1
  call void @traversalinit(ptr noundef %8)
  %9 = getelementptr inbounds %struct.osub, ptr %5, i32 0, i32 1
  store i32 0, ptr %9, align 8, !tbaa !9
  %10 = load ptr, ptr %3, align 8, !tbaa !5
  %11 = call ptr @subsegtraverse(ptr noundef %10)
  %12 = getelementptr inbounds %struct.osub, ptr %5, i32 0, i32 0
  store ptr %11, ptr %12, align 8, !tbaa !12
  br label %13

13:                                               ; preds = %17, %2
  %14 = getelementptr inbounds %struct.osub, ptr %5, i32 0, i32 0
  %15 = load ptr, ptr %14, align 8, !tbaa !12
  %16 = icmp ne ptr %15, null
  br i1 %16, label %17, label %24

17:                                               ; preds = %13
  %18 = load ptr, ptr %3, align 8, !tbaa !5
  %19 = load ptr, ptr %4, align 8, !tbaa !5
  %20 = call i32 @checkseg4encroach(ptr noundef %18, ptr noundef %19, ptr noundef %5)
  store i32 %20, ptr %6, align 4, !tbaa !13
  %21 = load ptr, ptr %3, align 8, !tbaa !5
  %22 = call ptr @subsegtraverse(ptr noundef %21)
  %23 = getelementptr inbounds %struct.osub, ptr %5, i32 0, i32 0
  store ptr %22, ptr %23, align 8, !tbaa !12
  br label %13, !llvm.loop !14

24:                                               ; preds = %13
  call void @llvm.lifetime.end.p0(i64 4, ptr %6) #2
  call void @llvm.lifetime.end.p0(i64 16, ptr %5) #2
  ret void
}

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 8}
!10 = !{!"osub", !6, i64 0, !11, i64 8}
!11 = !{!"int", !7, i64 0}
!12 = !{!10, !6, i64 0}
!13 = !{!11, !11, i64 0}
!14 = distinct !{!14, !15}
!15 = !{!"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"

%struct.osub = type { ptr, i32 }

; Function Attrs: mustprogress nocallback nofree nosync nounwind willreturn memory(argmem: readwrite)
declare void @llvm.lifetime.start.p0(i64 immarg, ptr nocapture) #0

; Function Attrs: mustprogress nocallback nofree nosync nounwind willreturn memory(argmem: readwrite)
declare void @llvm.lifetime.end.p0(i64 immarg, ptr nocapture) #0

; Function Attrs: nounwind uwtable
declare dso_local void @traversalinit(ptr noundef) local_unnamed_addr #1

; Function Attrs: nounwind uwtable
declare dso_local ptr @subsegtraverse(ptr noundef) local_unnamed_addr #1

; Function Attrs: nounwind uwtable
declare dso_local i32 @checkseg4encroach(ptr noundef, ptr noundef, ptr noundef) local_unnamed_addr #1

; Function Attrs: nounwind uwtable
define dso_local void @tallyencs(ptr noundef %0, ptr noundef %1) local_unnamed_addr #1 {
  %3 = alloca %struct.osub, align 8
  call void @llvm.lifetime.start.p0(i64 16, ptr nonnull %3) #2
  %4 = getelementptr inbounds i8, ptr %0, i64 88
  tail call void @traversalinit(ptr noundef nonnull %4)
  %5 = getelementptr inbounds i8, ptr %3, i64 8
  store i32 0, ptr %5, align 8, !tbaa !5
  %6 = tail call ptr @subsegtraverse(ptr noundef %0)
  store ptr %6, ptr %3, align 8, !tbaa !11
  %.not5 = icmp eq ptr %6, null
  br i1 %.not5, label %._crit_edge, label %.lr.ph

.lr.ph:                                           ; preds = %2, %.lr.ph
  %7 = call i32 @checkseg4encroach(ptr noundef %0, ptr noundef %1, ptr noundef nonnull %3)
  %8 = call ptr @subsegtraverse(ptr noundef %0)
  store ptr %8, ptr %3, align 8, !tbaa !11
  %.not = icmp eq ptr %8, null
  br i1 %.not, label %._crit_edge, label %.lr.ph, !llvm.loop !12

._crit_edge:                                      ; preds = %.lr.ph, %2
  call void @llvm.lifetime.end.p0(i64 16, ptr nonnull %3) #2
  ret void
}

attributes #0 = { mustprogress 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, !10, i64 8}
!6 = !{!"osub", !7, i64 0, !10, i64 8}
!7 = !{!"any pointer", !8, i64 0}
!8 = !{!"omnipotent char", !9, i64 0}
!9 = !{!"Simple C/C++ TBAA"}
!10 = !{!"int", !8, i64 0}
!11 = !{!6, !7, i64 0}
!12 = distinct !{!12, !13}
!13 = !{!"llvm.loop.mustprogress"}


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