; LLVM IR from LingDong-/skeleton-tracing :: swig (trace_skeleton)

; 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._polyline_t = type { ptr, ptr, ptr, ptr, i32 }
%struct._point_t = type { i32, i32, ptr }

@.str = external hidden unnamed_addr constant [7 x i8], align 1
@.str.1 = external hidden unnamed_addr constant [2 x i8], align 1

; 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
define dso_local void @print_polyline(ptr noundef %0) #1 {
  %2 = alloca ptr, align 8
  %3 = alloca ptr, align 8
  store ptr %0, ptr %2, align 8, !tbaa !5
  %4 = load ptr, ptr %2, align 8, !tbaa !5
  %5 = icmp ne ptr %4, null
  br i1 %5, label %7, label %6

6:                                                ; preds = %1
  br label %27

7:                                                ; preds = %1
  call void @llvm.lifetime.start.p0(i64 8, ptr %3) #3
  %8 = load ptr, ptr %2, align 8, !tbaa !5
  %9 = getelementptr inbounds %struct._polyline_t, ptr %8, i32 0, i32 0
  %10 = load ptr, ptr %9, align 8, !tbaa !9
  store ptr %10, ptr %3, align 8, !tbaa !5
  br label %11

11:                                               ; preds = %14, %7
  %12 = load ptr, ptr %3, align 8, !tbaa !5
  %13 = icmp ne ptr %12, null
  br i1 %13, label %14, label %25

14:                                               ; preds = %11
  %15 = load ptr, ptr %3, align 8, !tbaa !5
  %16 = getelementptr inbounds %struct._point_t, ptr %15, i32 0, i32 0
  %17 = load i32, ptr %16, align 8, !tbaa !12
  %18 = load ptr, ptr %3, align 8, !tbaa !5
  %19 = getelementptr inbounds %struct._point_t, ptr %18, i32 0, i32 1
  %20 = load i32, ptr %19, align 4, !tbaa !14
  %21 = call i32 (ptr, ...) @printf(ptr noundef @.str, i32 noundef %17, i32 noundef %20)
  %22 = load ptr, ptr %3, align 8, !tbaa !5
  %23 = getelementptr inbounds %struct._point_t, ptr %22, i32 0, i32 2
  %24 = load ptr, ptr %23, align 8, !tbaa !15
  store ptr %24, ptr %3, align 8, !tbaa !5
  br label %11, !llvm.loop !16

25:                                               ; preds = %11
  %26 = call i32 (ptr, ...) @printf(ptr noundef @.str.1)
  call void @llvm.lifetime.end.p0(i64 8, ptr %3) #3
  br label %27

27:                                               ; preds = %25, %6
  ret void
}

declare i32 @printf(ptr noundef, ...) #2

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 = { "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/C++ TBAA"}
!9 = !{!10, !6, i64 0}
!10 = !{!"_polyline_t", !6, i64 0, !6, i64 8, !6, i64 16, !6, i64 24, !11, i64 32}
!11 = !{!"int", !7, i64 0}
!12 = !{!13, !11, i64 0}
!13 = !{!"_point_t", !11, i64 0, !11, i64 4, !6, i64 8}
!14 = !{!13, !11, i64 4}
!15 = !{!13, !6, i64 8}
!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"

@.str = external hidden unnamed_addr constant [7 x i8], align 1
@.str.1 = external hidden unnamed_addr constant [2 x i8], align 1

; Function Attrs: nofree nounwind uwtable
define dso_local void @print_polyline(ptr noundef readonly %0) local_unnamed_addr #0 {
  %.not = icmp eq ptr %0, null
  br i1 %.not, label %8, label %.preheader

.preheader:                                       ; preds = %1
  %.08 = load ptr, ptr %0, align 8, !tbaa !5
  %.not79 = icmp eq ptr %.08, null
  br i1 %.not79, label %._crit_edge, label %.lr.ph

.lr.ph:                                           ; preds = %.preheader, %.lr.ph
  %.010 = phi ptr [ %.0, %.lr.ph ], [ %.08, %.preheader ]
  %2 = load i32, ptr %.010, align 8, !tbaa !9
  %3 = getelementptr inbounds i8, ptr %.010, i64 4
  %4 = load i32, ptr %3, align 4, !tbaa !12
  %5 = tail call i32 (ptr, ...) @printf(ptr noundef nonnull dereferenceable(1) @.str, i32 noundef %2, i32 noundef %4)
  %6 = getelementptr inbounds i8, ptr %.010, i64 8
  %.0 = load ptr, ptr %6, align 8, !tbaa !5
  %.not7 = icmp eq ptr %.0, null
  br i1 %.not7, label %._crit_edge, label %.lr.ph, !llvm.loop !13

._crit_edge:                                      ; preds = %.lr.ph, %.preheader
  %7 = tail call i32 (ptr, ...) @printf(ptr noundef nonnull dereferenceable(1) @.str.1)
  br label %8

8:                                                ; preds = %1, %._crit_edge
  ret void
}

; Function Attrs: nofree nounwind
declare noundef i32 @printf(ptr nocapture noundef readonly, ...) local_unnamed_addr #1

attributes #0 = { nofree 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 = { nofree nounwind "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 = !{!"any pointer", !7, i64 0}
!7 = !{!"omnipotent char", !8, i64 0}
!8 = !{!"Simple C/C++ TBAA"}
!9 = !{!10, !11, i64 0}
!10 = !{!"_point_t", !11, i64 0, !11, i64 4, !6, i64 8}
!11 = !{!"int", !7, i64 0}
!12 = !{!10, !11, i64 4}
!13 = distinct !{!13, !14}
!14 = !{!"llvm.loop.mustprogress"}


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