; LLVM IR from robotics-upo/Heuristic_path_planners :: include/voro++-0.4.6/src/container.ll (ZN4voro9wall_list8add_wallERS0_)

; 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"

%"class.voro::wall_list" = type <{ ptr, ptr, ptr, i32, [4 x i8] }>

; 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 uwtable
define dso_local void @_ZN4voro9wall_list8add_wallERS0_(ptr noundef nonnull align 8 dereferenceable(28) %0, ptr noundef nonnull align 8 dereferenceable(28) %1) #1 align 2 {
  %3 = alloca ptr, align 8
  %4 = alloca ptr, align 8
  %5 = alloca ptr, align 8
  store ptr %0, ptr %3, align 8, !tbaa !5
  store ptr %1, ptr %4, align 8, !tbaa !5
  %6 = load ptr, ptr %3, align 8
  call void @llvm.lifetime.start.p0(i64 8, ptr %5) #3
  %7 = load ptr, ptr %4, align 8, !tbaa !5
  %8 = getelementptr inbounds %"class.voro::wall_list", ptr %7, i32 0, i32 0
  %9 = load ptr, ptr %8, align 8, !tbaa !9
  store ptr %9, ptr %5, align 8, !tbaa !5
  br label %10

10:                                               ; preds = %20, %2
  %11 = load ptr, ptr %5, align 8, !tbaa !5
  %12 = load ptr, ptr %4, align 8, !tbaa !5
  %13 = getelementptr inbounds %"class.voro::wall_list", ptr %12, i32 0, i32 1
  %14 = load ptr, ptr %13, align 8, !tbaa !12
  %15 = icmp ult ptr %11, %14
  br i1 %15, label %17, label %16

16:                                               ; preds = %10
  call void @llvm.lifetime.end.p0(i64 8, ptr %5) #3
  br label %23

17:                                               ; preds = %10
  %18 = load ptr, ptr %5, align 8, !tbaa !5
  %19 = load ptr, ptr %18, align 8, !tbaa !5
  call void @_ZN4voro9wall_list8add_wallEPNS_4wallE(ptr noundef nonnull align 8 dereferenceable(28) %6, ptr noundef %19)
  br label %20

20:                                               ; preds = %17
  %21 = load ptr, ptr %5, align 8, !tbaa !5
  %22 = getelementptr inbounds ptr, ptr %21, i32 1
  store ptr %22, ptr %5, align 8, !tbaa !5
  br label %10, !llvm.loop !13

23:                                               ; preds = %16
  ret void
}

; Function Attrs: inlinehint mustprogress uwtable
declare dso_local void @_ZN4voro9wall_list8add_wallEPNS_4wallE(ptr noundef nonnull align 8 dereferenceable(28), ptr noundef) #2 align 2

attributes #0 = { nocallback nofree nosync nounwind willreturn memory(argmem: readwrite) }
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 = { inlinehint 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 }

!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, !6, i64 0}
!10 = !{!"_ZTSN4voro9wall_listE", !6, i64 0, !6, i64 8, !6, i64 16, !11, i64 24}
!11 = !{!"int", !7, i64 0}
!12 = !{!10, !6, i64 8}
!13 = distinct !{!13, !14}
!14 = !{!"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 uwtable
define dso_local void @_ZN4voro9wall_list8add_wallERS0_(ptr noundef nonnull align 8 dereferenceable(28) %0, ptr nocapture noundef nonnull readonly align 8 dereferenceable(28) %1) local_unnamed_addr #0 align 2 {
  %3 = load ptr, ptr %1, align 8, !tbaa !5
  %4 = getelementptr inbounds i8, ptr %1, i64 8
  %5 = load ptr, ptr %4, align 8, !tbaa !11
  %6 = icmp ult ptr %3, %5
  br i1 %6, label %.lr.ph, label %._crit_edge

._crit_edge:                                      ; preds = %.lr.ph, %2
  ret void

.lr.ph:                                           ; preds = %2, %.lr.ph
  %.06 = phi ptr [ %8, %.lr.ph ], [ %3, %2 ]
  %7 = load ptr, ptr %.06, align 8, !tbaa !12
  tail call void @_ZN4voro9wall_list8add_wallEPNS_4wallE(ptr noundef nonnull align 8 dereferenceable(28) %0, ptr noundef %7)
  %8 = getelementptr inbounds i8, ptr %.06, i64 8
  %9 = load ptr, ptr %4, align 8, !tbaa !11
  %10 = icmp ult ptr %8, %9
  br i1 %10, label %.lr.ph, label %._crit_edge, !llvm.loop !13
}

; Function Attrs: inlinehint mustprogress uwtable
declare dso_local void @_ZN4voro9wall_list8add_wallEPNS_4wallE(ptr noundef nonnull align 8 dereferenceable(28), ptr noundef) local_unnamed_addr #1 align 2

attributes #0 = { 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 #1 = { inlinehint 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" }

!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, !7, i64 0}
!6 = !{!"_ZTSN4voro9wall_listE", !7, i64 0, !7, i64 8, !7, i64 16, !10, i64 24}
!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 8}
!12 = !{!7, !7, i64 0}
!13 = distinct !{!13, !14}
!14 = !{!"llvm.loop.mustprogress"}


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