; LLVM IR from niessner/Matterport :: code/gaps/pkgs/R3Shapes/R3Polyline.ll (ZNK10R3Polyline7OutlineE7RNFlags)

; 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.R3Point = type { [3 x double] }
%class.RNFlags = type { i64 }
%class.R3Polyline = type { %class.R3Curve, ptr, ptr, ptr, i32, %class.R3Box }
%class.R3Curve = type { %class.R3Shape }
%class.R3Shape = type { ptr }
%class.R3Box = type { %class.R3Solid, %class.R3Point, %class.R3Point }
%class.R3Solid = type { %class.R3Shape }

; 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: inlinehint mustprogress uwtable
declare dso_local void @_ZNK10R3Polyline14VertexPositionEi(ptr dead_on_unwind noalias writable sret(%class.R3Point) align 8, ptr noundef nonnull align 8 dereferenceable(96), i32 noundef) #1 align 2

; Function Attrs: mustprogress uwtable
define dso_local void @_ZNK10R3Polyline7OutlineE7RNFlags(ptr noundef nonnull align 8 dereferenceable(96) %0, i64 %1) unnamed_addr #2 align 2 {
  %3 = alloca %class.RNFlags, align 8
  %4 = alloca ptr, align 8
  %5 = alloca i32, align 4
  %6 = alloca %class.R3Point, align 8
  %7 = getelementptr inbounds %class.RNFlags, ptr %3, i32 0, i32 0
  store i64 %1, ptr %7, align 8
  store ptr %0, ptr %4, align 8, !tbaa !5
  %8 = load ptr, ptr %4, align 8
  call void @glBegin(i32 noundef 3)
  call void @llvm.lifetime.start.p0(i64 4, ptr %5) #4
  store i32 0, ptr %5, align 4, !tbaa !9
  br label %9

9:                                                ; preds = %17, %2
  %10 = load i32, ptr %5, align 4, !tbaa !9
  %11 = getelementptr inbounds %class.R3Polyline, ptr %8, i32 0, i32 4
  %12 = load i32, ptr %11, align 8, !tbaa !11
  %13 = icmp slt i32 %10, %12
  br i1 %13, label %15, label %14

14:                                               ; preds = %9
  call void @llvm.lifetime.end.p0(i64 4, ptr %5) #4
  br label %20

15:                                               ; preds = %9
  call void @llvm.lifetime.start.p0(i64 24, ptr %6) #4
  %16 = load i32, ptr %5, align 4, !tbaa !9
  call void @_ZNK10R3Polyline14VertexPositionEi(ptr dead_on_unwind writable sret(%class.R3Point) align 8 %6, ptr noundef nonnull align 8 dereferenceable(96) %8, i32 noundef %16)
  call void @_Z11R3LoadPointRK7R3Point(ptr noundef nonnull align 8 dereferenceable(24) %6)
  call void @llvm.lifetime.end.p0(i64 24, ptr %6) #4
  br label %17

17:                                               ; preds = %15
  %18 = load i32, ptr %5, align 4, !tbaa !9
  %19 = add nsw i32 %18, 1
  store i32 %19, ptr %5, align 4, !tbaa !9
  br label %9, !llvm.loop !18

20:                                               ; preds = %14
  call void @glEnd()
  ret void
}

declare void @glBegin(i32 noundef) #3

; Function Attrs: inlinehint mustprogress uwtable
declare dso_local void @_Z11R3LoadPointRK7R3Point(ptr noundef nonnull align 8 dereferenceable(24)) #1

declare void @glEnd() #3

attributes #0 = { nocallback nofree nosync nounwind willreturn memory(argmem: readwrite) }
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" }
attributes #2 = { 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 = { "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 #4 = { 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 32}
!12 = !{!"_ZTS10R3Polyline", !13, i64 0, !6, i64 8, !6, i64 16, !6, i64 24, !10, i64 32, !15, i64 40}
!13 = !{!"_ZTS7R3Curve", !14, i64 0}
!14 = !{!"_ZTS7R3Shape"}
!15 = !{!"_ZTS5R3Box", !16, i64 0, !17, i64 8, !17, i64 32}
!16 = !{!"_ZTS7R3Solid", !14, i64 0}
!17 = !{!"_ZTS7R3Point", !7, i64 0}
!18 = distinct !{!18, !19}
!19 = !{!"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"

%class.R3Point = type { [3 x double] }

; 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: inlinehint mustprogress uwtable
declare dso_local void @_ZNK10R3Polyline14VertexPositionEi(ptr dead_on_unwind noalias writable sret(%class.R3Point) align 8, ptr noundef nonnull align 8 dereferenceable(96), i32 noundef) local_unnamed_addr #1 align 2

; Function Attrs: mustprogress uwtable
define dso_local void @_ZNK10R3Polyline7OutlineE7RNFlags(ptr noundef nonnull align 8 dereferenceable(96) %0, i64 %1) unnamed_addr #2 align 2 {
  %3 = alloca %class.R3Point, align 8
  tail call void @glBegin(i32 noundef 3)
  %4 = getelementptr inbounds i8, ptr %0, i64 32
  %5 = load i32, ptr %4, align 8, !tbaa !5
  %6 = icmp sgt i32 %5, 0
  br i1 %6, label %.lr.ph, label %._crit_edge

._crit_edge:                                      ; preds = %.lr.ph, %2
  call void @glEnd()
  ret void

.lr.ph:                                           ; preds = %2, %.lr.ph
  %.03 = phi i32 [ %7, %.lr.ph ], [ 0, %2 ]
  call void @llvm.lifetime.start.p0(i64 24, ptr nonnull %3) #4
  call void @_ZNK10R3Polyline14VertexPositionEi(ptr dead_on_unwind nonnull writable sret(%class.R3Point) align 8 %3, ptr noundef nonnull align 8 dereferenceable(96) %0, i32 noundef %.03)
  call void @_Z11R3LoadPointRK7R3Point(ptr noundef nonnull align 8 dereferenceable(24) %3)
  call void @llvm.lifetime.end.p0(i64 24, ptr nonnull %3) #4
  %7 = add nuw nsw i32 %.03, 1
  %8 = load i32, ptr %4, align 8, !tbaa !5
  %9 = icmp slt i32 %7, %8
  br i1 %9, label %.lr.ph, label %._crit_edge, !llvm.loop !16
}

declare void @glBegin(i32 noundef) local_unnamed_addr #3

; Function Attrs: inlinehint mustprogress uwtable
declare dso_local void @_Z11R3LoadPointRK7R3Point(ptr noundef nonnull align 8 dereferenceable(24)) local_unnamed_addr #1

declare void @glEnd() local_unnamed_addr #3

attributes #0 = { mustprogress nocallback nofree nosync nounwind willreturn memory(argmem: readwrite) }
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" }
attributes #2 = { 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 = { "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 #4 = { 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, !12, i64 32}
!6 = !{!"_ZTS10R3Polyline", !7, i64 0, !9, i64 8, !9, i64 16, !9, i64 24, !12, i64 32, !13, i64 40}
!7 = !{!"_ZTS7R3Curve", !8, i64 0}
!8 = !{!"_ZTS7R3Shape"}
!9 = !{!"any pointer", !10, i64 0}
!10 = !{!"omnipotent char", !11, i64 0}
!11 = !{!"Simple C++ TBAA"}
!12 = !{!"int", !10, i64 0}
!13 = !{!"_ZTS5R3Box", !14, i64 0, !15, i64 8, !15, i64 32}
!14 = !{!"_ZTS7R3Solid", !8, i64 0}
!15 = !{!"_ZTS7R3Point", !10, i64 0}
!16 = distinct !{!16, !17}
!17 = !{!"llvm.loop.mustprogress"}


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