; LLVM IR from niessner/Matterport :: code/gaps/pkgs/R2Shapes/R2Polygon.ll (ZN9R2Polygon9TransformERK16R2Transformation)

; 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.R2Box = type { %class.R2Solid, %class.R2Point, %class.R2Point }
%class.R2Solid = type { %class.R2Shape }
%class.R2Shape = type { ptr }
%class.R2Point = type { [2 x double] }
%class.R2Polygon = type <{ %class.R2Solid, ptr, i32, [4 x i8], %class.R2Box, i32, [4 x i8] }>

@R2null_box = external global %class.R2Box, align 8

; 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

declare void @_ZN5R2Box5UnionERK7R2Point(ptr noundef nonnull align 8 dereferenceable(40), ptr noundef nonnull align 8 dereferenceable(16)) unnamed_addr #1

; Function Attrs: inlinehint mustprogress uwtable
declare dso_local noundef nonnull align 8 dereferenceable(40) ptr @_ZN5R2BoxaSERKS_(ptr noundef nonnull align 8 dereferenceable(40), ptr noundef nonnull align 8 dereferenceable(40)) #2 align 2

; Function Attrs: mustprogress uwtable
define dso_local void @_ZN9R2Polygon9TransformERK16R2Transformation(ptr noundef nonnull align 8 dereferenceable(68) %0, ptr noundef nonnull align 8 dereferenceable(8) %1) unnamed_addr #3 align 2 {
  %3 = alloca ptr, align 8
  %4 = alloca ptr, align 8
  %5 = alloca i32, align 4
  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
  %7 = getelementptr inbounds %class.R2Polygon, ptr %6, i32 0, i32 4
  %8 = call noundef nonnull align 8 dereferenceable(40) ptr @_ZN5R2BoxaSERKS_(ptr noundef nonnull align 8 dereferenceable(40) %7, ptr noundef nonnull align 8 dereferenceable(40) @R2null_box)
  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 = %28, %2
  %10 = load i32, ptr %5, align 4, !tbaa !9
  %11 = getelementptr inbounds %class.R2Polygon, ptr %6, i32 0, i32 2
  %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 %31

15:                                               ; preds = %9
  %16 = getelementptr inbounds %class.R2Polygon, ptr %6, i32 0, i32 1
  %17 = load ptr, ptr %16, align 8, !tbaa !17
  %18 = load i32, ptr %5, align 4, !tbaa !9
  %19 = sext i32 %18 to i64
  %20 = getelementptr inbounds %class.R2Point, ptr %17, i64 %19
  %21 = load ptr, ptr %4, align 8, !tbaa !5
  call void @_ZN7R2Point9TransformERK16R2Transformation(ptr noundef nonnull align 8 dereferenceable(16) %20, ptr noundef nonnull align 8 dereferenceable(8) %21)
  %22 = getelementptr inbounds %class.R2Polygon, ptr %6, i32 0, i32 4
  %23 = getelementptr inbounds %class.R2Polygon, ptr %6, i32 0, i32 1
  %24 = load ptr, ptr %23, align 8, !tbaa !17
  %25 = load i32, ptr %5, align 4, !tbaa !9
  %26 = sext i32 %25 to i64
  %27 = getelementptr inbounds %class.R2Point, ptr %24, i64 %26
  call void @_ZN5R2Box5UnionERK7R2Point(ptr noundef nonnull align 8 dereferenceable(40) %22, ptr noundef nonnull align 8 dereferenceable(16) %27)
  br label %28

28:                                               ; preds = %15
  %29 = load i32, ptr %5, align 4, !tbaa !9
  %30 = add nsw i32 %29, 1
  store i32 %30, ptr %5, align 4, !tbaa !9
  br label %9, !llvm.loop !18

31:                                               ; preds = %14
  ret void
}

declare void @_ZN7R2Point9TransformERK16R2Transformation(ptr noundef nonnull align 8 dereferenceable(16), ptr noundef nonnull align 8 dereferenceable(8)) #1

attributes #0 = { nocallback nofree nosync nounwind willreturn memory(argmem: readwrite) }
attributes #1 = { "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 = { 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 #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 16}
!12 = !{!"_ZTS9R2Polygon", !13, i64 0, !6, i64 8, !10, i64 16, !15, i64 24, !10, i64 64}
!13 = !{!"_ZTS7R2Solid", !14, i64 0}
!14 = !{!"_ZTS7R2Shape"}
!15 = !{!"_ZTS5R2Box", !13, i64 0, !16, i64 8, !16, i64 24}
!16 = !{!"_ZTS7R2Point", !7, i64 0}
!17 = !{!12, !6, i64 8}
!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.R2Box = type { %class.R2Solid, %class.R2Point, %class.R2Point }
%class.R2Solid = type { %class.R2Shape }
%class.R2Shape = type { ptr }
%class.R2Point = type { [2 x double] }

@R2null_box = external global %class.R2Box, align 8

declare void @_ZN5R2Box5UnionERK7R2Point(ptr noundef nonnull align 8 dereferenceable(40), ptr noundef nonnull align 8 dereferenceable(16)) unnamed_addr #0

; Function Attrs: inlinehint mustprogress uwtable
declare dso_local noundef nonnull align 8 dereferenceable(40) ptr @_ZN5R2BoxaSERKS_(ptr noundef nonnull align 8 dereferenceable(40), ptr noundef nonnull align 8 dereferenceable(40)) local_unnamed_addr #1 align 2

; Function Attrs: mustprogress uwtable
define dso_local void @_ZN9R2Polygon9TransformERK16R2Transformation(ptr noundef nonnull align 8 dereferenceable(68) %0, ptr noundef nonnull align 8 dereferenceable(8) %1) unnamed_addr #2 align 2 {
  %3 = getelementptr inbounds i8, ptr %0, i64 24
  %4 = tail call noundef nonnull align 8 dereferenceable(40) ptr @_ZN5R2BoxaSERKS_(ptr noundef nonnull align 8 dereferenceable(40) %3, ptr noundef nonnull align 8 dereferenceable(40) @R2null_box)
  %5 = getelementptr inbounds i8, ptr %0, i64 16
  %6 = load i32, ptr %5, align 8, !tbaa !5
  %7 = icmp sgt i32 %6, 0
  br i1 %7, label %.lr.ph, label %._crit_edge

.lr.ph:                                           ; preds = %2
  %8 = getelementptr inbounds i8, ptr %0, i64 8
  br label %9

._crit_edge:                                      ; preds = %9, %2
  ret void

9:                                                ; preds = %.lr.ph, %9
  %indvars.iv = phi i64 [ 0, %.lr.ph ], [ %indvars.iv.next, %9 ]
  %10 = load ptr, ptr %8, align 8, !tbaa !15
  %11 = getelementptr inbounds %class.R2Point, ptr %10, i64 %indvars.iv
  tail call void @_ZN7R2Point9TransformERK16R2Transformation(ptr noundef nonnull align 8 dereferenceable(16) %11, ptr noundef nonnull align 8 dereferenceable(8) %1)
  %12 = load ptr, ptr %8, align 8, !tbaa !15
  %13 = getelementptr inbounds %class.R2Point, ptr %12, i64 %indvars.iv
  tail call void @_ZN5R2Box5UnionERK7R2Point(ptr noundef nonnull align 8 dereferenceable(40) %3, ptr noundef nonnull align 8 dereferenceable(16) %13)
  %indvars.iv.next = add nuw nsw i64 %indvars.iv, 1
  %14 = load i32, ptr %5, align 8, !tbaa !5
  %15 = sext i32 %14 to i64
  %16 = icmp slt i64 %indvars.iv.next, %15
  br i1 %16, label %9, label %._crit_edge, !llvm.loop !16
}

declare void @_ZN7R2Point9TransformERK16R2Transformation(ptr noundef nonnull align 8 dereferenceable(16), ptr noundef nonnull align 8 dereferenceable(8)) local_unnamed_addr #0

attributes #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" }
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" }

!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 16}
!6 = !{!"_ZTS9R2Polygon", !7, i64 0, !9, i64 8, !12, i64 16, !13, i64 24, !12, i64 64}
!7 = !{!"_ZTS7R2Solid", !8, i64 0}
!8 = !{!"_ZTS7R2Shape"}
!9 = !{!"any pointer", !10, i64 0}
!10 = !{!"omnipotent char", !11, i64 0}
!11 = !{!"Simple C++ TBAA"}
!12 = !{!"int", !10, i64 0}
!13 = !{!"_ZTS5R2Box", !7, i64 0, !14, i64 8, !14, i64 24}
!14 = !{!"_ZTS7R2Point", !10, i64 0}
!15 = !{!6, !9, i64 8}
!16 = distinct !{!16, !17}
!17 = !{!"llvm.loop.mustprogress"}


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