; LLVM IR from robotics-upo/Heuristic_path_planners :: include/voro++-0.4.6/src/v_base.ll (ZN4voro9voro_base17contains_neighborEPKc)

; 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"

; 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
define dso_local noundef zeroext i1 @_ZN4voro9voro_base17contains_neighborEPKc(ptr noundef nonnull align 8 dereferenceable(80) %0, ptr noundef %1) #1 align 2 {
  %3 = alloca i1, align 1
  %4 = alloca ptr, align 8
  %5 = alloca ptr, align 8
  %6 = alloca ptr, align 8
  %7 = alloca i32, align 4
  store ptr %0, ptr %4, align 8, !tbaa !5
  store ptr %1, ptr %5, align 8, !tbaa !5
  %8 = load ptr, ptr %4, align 8
  call void @llvm.lifetime.start.p0(i64 8, ptr %6) #2
  %9 = load ptr, ptr %5, align 8, !tbaa !5
  store ptr %9, ptr %6, align 8, !tbaa !5
  br label %10

10:                                               ; preds = %36, %2
  %11 = load ptr, ptr %6, align 8, !tbaa !5
  %12 = load i8, ptr %11, align 1, !tbaa !9
  %13 = sext i8 %12 to i32
  %14 = icmp ne i32 %13, 0
  br i1 %14, label %15, label %39

15:                                               ; preds = %10
  %16 = load ptr, ptr %6, align 8, !tbaa !5
  %17 = load i8, ptr %16, align 1, !tbaa !9
  %18 = sext i8 %17 to i32
  %19 = icmp eq i32 %18, 37
  br i1 %19, label %20, label %36

20:                                               ; preds = %15
  %21 = load ptr, ptr %6, align 8, !tbaa !5
  %22 = getelementptr inbounds i8, ptr %21, i32 1
  store ptr %22, ptr %6, align 8, !tbaa !5
  %23 = load ptr, ptr %6, align 8, !tbaa !5
  %24 = load i8, ptr %23, align 1, !tbaa !9
  %25 = sext i8 %24 to i32
  %26 = icmp eq i32 %25, 110
  br i1 %26, label %27, label %28

27:                                               ; preds = %20
  store i1 true, ptr %3, align 1
  store i32 1, ptr %7, align 4
  br label %40

28:                                               ; preds = %20
  %29 = load ptr, ptr %6, align 8, !tbaa !5
  %30 = load i8, ptr %29, align 1, !tbaa !9
  %31 = sext i8 %30 to i32
  %32 = icmp eq i32 %31, 0
  br i1 %32, label %33, label %34

33:                                               ; preds = %28
  store i1 false, ptr %3, align 1
  store i32 1, ptr %7, align 4
  br label %40

34:                                               ; preds = %28
  br label %35

35:                                               ; preds = %34
  br label %36

36:                                               ; preds = %35, %15
  %37 = load ptr, ptr %6, align 8, !tbaa !5
  %38 = getelementptr inbounds i8, ptr %37, i32 1
  store ptr %38, ptr %6, align 8, !tbaa !5
  br label %10, !llvm.loop !10

39:                                               ; preds = %10
  store i1 false, ptr %3, align 1
  store i32 1, ptr %7, align 4
  br label %40

40:                                               ; preds = %39, %33, %27
  call void @llvm.lifetime.end.p0(i64 8, ptr %6) #2
  %41 = load i1, ptr %3, align 1
  ret i1 %41
}

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 = !{!7, !7, i64 0}
!10 = distinct !{!10, !11}
!11 = !{!"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 nofree norecurse nosync nounwind willreturn memory(read, inaccessiblemem: none) uwtable
define dso_local noundef zeroext i1 @_ZN4voro9voro_base17contains_neighborEPKc(ptr nocapture noundef nonnull readnone align 8 dereferenceable(80) %0, ptr nocapture noundef readonly %1) local_unnamed_addr #0 align 2 {
  br label %3

3:                                                ; preds = %8, %2
  %.0 = phi ptr [ %1, %2 ], [ %9, %8 ]
  %4 = load i8, ptr %.0, align 1, !tbaa !5
  switch i8 %4, label %8 [
    i8 0, label %.loopexit
    i8 37, label %5
  ]

5:                                                ; preds = %3
  %6 = getelementptr inbounds i8, ptr %.0, i64 1
  %7 = load i8, ptr %6, align 1, !tbaa !5
  switch i8 %7, label %8 [
    i8 110, label %.loopexit.loopexit
    i8 0, label %.loopexit
  ]

8:                                                ; preds = %5, %3
  %.1 = phi ptr [ %.0, %3 ], [ %6, %5 ]
  %9 = getelementptr inbounds i8, ptr %.1, i64 1
  br label %3, !llvm.loop !8

.loopexit.loopexit:                               ; preds = %5
  br label %.loopexit

.loopexit:                                        ; preds = %3, %5, %.loopexit.loopexit
  %.09 = phi i1 [ true, %.loopexit.loopexit ], [ false, %5 ], [ false, %3 ]
  ret i1 %.09
}

attributes #0 = { mustprogress nofree norecurse nosync nounwind willreturn 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 = !{!"omnipotent char", !7, i64 0}
!7 = !{!"Simple C++ TBAA"}
!8 = distinct !{!8, !9}
!9 = !{!"llvm.loop.mustprogress"}


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