; LLVM IR from sp-nitech/SPTK :: third_party/REAPER/core/track.ll (ZN4sptk6reaper5Track7FrameInERKSt6vectorIfSaIfEEi)

; 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.sptk::reaper::Track" = type { i32, i32, %"class.sptk::reaper::FloatMatrix", %"class.std::vector", i8, float }
%"class.sptk::reaper::FloatMatrix" = type { ptr, i32, i32 }
%"class.std::vector" = type { %"struct.std::_Bvector_base" }
%"struct.std::_Bvector_base" = type { %"struct.std::_Bvector_base<std::allocator<bool>>::_Bvector_impl" }
%"struct.std::_Bvector_base<std::allocator<bool>>::_Bvector_impl" = type { %"struct.std::_Bvector_base<std::allocator<bool>>::_Bvector_impl_data" }
%"struct.std::_Bvector_base<std::allocator<bool>>::_Bvector_impl_data" = type { %"struct.std::_Bit_iterator", %"struct.std::_Bit_iterator", ptr }
%"struct.std::_Bit_iterator" = type { %"struct.std::_Bit_iterator_base.base", [4 x i8] }
%"struct.std::_Bit_iterator_base.base" = type <{ ptr, i32 }>

; 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 noundef nonnull align 4 dereferenceable(4) ptr @_ZN4sptk6reaper5Track1aEii(ptr noundef nonnull align 8 dereferenceable(72), i32 noundef, i32 noundef) #1 align 2

; Function Attrs: mustprogress uwtable
define dso_local void @_ZN4sptk6reaper5Track7FrameInERKSt6vectorIfSaIfEEi(ptr noundef nonnull align 8 dereferenceable(72) %0, ptr noundef nonnull align 8 dereferenceable(24) %1, i32 noundef %2) #2 align 2 {
  %4 = alloca ptr, align 8
  %5 = alloca ptr, align 8
  %6 = alloca i32, align 4
  %7 = alloca i32, align 4
  store ptr %0, ptr %4, align 8, !tbaa !5
  store ptr %1, ptr %5, align 8, !tbaa !5
  store i32 %2, ptr %6, align 4, !tbaa !9
  %8 = load ptr, ptr %4, align 8
  call void @llvm.lifetime.start.p0(i64 4, ptr %7) #4
  store i32 0, ptr %7, align 4, !tbaa !9
  br label %9

9:                                                ; preds = %24, %3
  %10 = load i32, ptr %7, align 4, !tbaa !9
  %11 = getelementptr inbounds %"class.sptk::reaper::Track", ptr %8, i32 0, i32 1
  %12 = load i32, ptr %11, align 4, !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 %7) #4
  br label %27

15:                                               ; preds = %9
  %16 = load ptr, ptr %5, align 8, !tbaa !5
  %17 = load i32, ptr %7, align 4, !tbaa !9
  %18 = sext i32 %17 to i64
  %19 = call noundef nonnull align 4 dereferenceable(4) ptr @_ZNKSt6vectorIfSaIfEEixEm(ptr noundef nonnull align 8 dereferenceable(24) %16, i64 noundef %18) #4
  %20 = load float, ptr %19, align 4, !tbaa !22
  %21 = load i32, ptr %6, align 4, !tbaa !9
  %22 = load i32, ptr %7, align 4, !tbaa !9
  %23 = call noundef nonnull align 4 dereferenceable(4) ptr @_ZN4sptk6reaper5Track1aEii(ptr noundef nonnull align 8 dereferenceable(72) %8, i32 noundef %21, i32 noundef %22)
  store float %20, ptr %23, align 4, !tbaa !22
  br label %24

24:                                               ; preds = %15
  %25 = load i32, ptr %7, align 4, !tbaa !9
  %26 = add nsw i32 %25, 1
  store i32 %26, ptr %7, align 4, !tbaa !9
  br label %9, !llvm.loop !23

27:                                               ; preds = %14
  ret void
}

; Function Attrs: mustprogress nounwind uwtable
declare dso_local noundef nonnull align 4 dereferenceable(4) ptr @_ZNKSt6vectorIfSaIfEEixEm(ptr noundef nonnull align 8 dereferenceable(24), i64 noundef) #3 align 2

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 = { 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 #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 4}
!12 = !{!"_ZTSN4sptk6reaper5TrackE", !10, i64 0, !10, i64 4, !13, i64 8, !14, i64 24, !20, i64 64, !21, i64 68}
!13 = !{!"_ZTSN4sptk6reaper11FloatMatrixE", !6, i64 0, !10, i64 8, !10, i64 12}
!14 = !{!"_ZTSSt6vectorIbSaIbEE", !15, i64 0}
!15 = !{!"_ZTSSt13_Bvector_baseISaIbEE", !16, i64 0}
!16 = !{!"_ZTSNSt13_Bvector_baseISaIbEE13_Bvector_implE", !17, i64 0}
!17 = !{!"_ZTSNSt13_Bvector_baseISaIbEE18_Bvector_impl_dataE", !18, i64 0, !18, i64 16, !6, i64 32}
!18 = !{!"_ZTSSt13_Bit_iterator", !19, i64 0}
!19 = !{!"_ZTSSt18_Bit_iterator_base", !6, i64 0, !10, i64 8}
!20 = !{!"bool", !7, i64 0}
!21 = !{!"float", !7, i64 0}
!22 = !{!21, !21, i64 0}
!23 = distinct !{!23, !24}
!24 = !{!"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: inlinehint mustprogress uwtable
declare dso_local noundef nonnull align 4 dereferenceable(4) ptr @_ZN4sptk6reaper5Track1aEii(ptr noundef nonnull align 8 dereferenceable(72), i32 noundef, i32 noundef) local_unnamed_addr #0 align 2

; Function Attrs: mustprogress uwtable
define dso_local void @_ZN4sptk6reaper5Track7FrameInERKSt6vectorIfSaIfEEi(ptr noundef nonnull align 8 dereferenceable(72) %0, ptr noundef nonnull align 8 dereferenceable(24) %1, i32 noundef %2) local_unnamed_addr #1 align 2 {
  %4 = getelementptr inbounds i8, ptr %0, i64 4
  %5 = load i32, ptr %4, align 4, !tbaa !5
  %6 = icmp sgt i32 %5, 0
  br i1 %6, label %.lr.ph, label %._crit_edge

._crit_edge:                                      ; preds = %.lr.ph, %3
  ret void

.lr.ph:                                           ; preds = %3, %.lr.ph
  %indvars.iv = phi i64 [ %indvars.iv.next, %.lr.ph ], [ 0, %3 ]
  %7 = tail call noundef nonnull align 4 dereferenceable(4) ptr @_ZNKSt6vectorIfSaIfEEixEm(ptr noundef nonnull align 8 dereferenceable(24) %1, i64 noundef %indvars.iv) #3
  %8 = load float, ptr %7, align 4, !tbaa !20
  %9 = trunc nuw nsw i64 %indvars.iv to i32
  %10 = tail call noundef nonnull align 4 dereferenceable(4) ptr @_ZN4sptk6reaper5Track1aEii(ptr noundef nonnull align 8 dereferenceable(72) %0, i32 noundef %2, i32 noundef %9)
  store float %8, ptr %10, align 4, !tbaa !20
  %indvars.iv.next = add nuw nsw i64 %indvars.iv, 1
  %11 = load i32, ptr %4, align 4, !tbaa !5
  %12 = sext i32 %11 to i64
  %13 = icmp slt i64 %indvars.iv.next, %12
  br i1 %13, label %.lr.ph, label %._crit_edge, !llvm.loop !21
}

; Function Attrs: mustprogress nounwind uwtable
declare dso_local noundef nonnull align 4 dereferenceable(4) ptr @_ZNKSt6vectorIfSaIfEEixEm(ptr noundef nonnull align 8 dereferenceable(24), i64 noundef) local_unnamed_addr #2 align 2

attributes #0 = { 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 #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 = { 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 #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, !7, i64 4}
!6 = !{!"_ZTSN4sptk6reaper5TrackE", !7, i64 0, !7, i64 4, !10, i64 8, !12, i64 24, !18, i64 64, !19, i64 68}
!7 = !{!"int", !8, i64 0}
!8 = !{!"omnipotent char", !9, i64 0}
!9 = !{!"Simple C++ TBAA"}
!10 = !{!"_ZTSN4sptk6reaper11FloatMatrixE", !11, i64 0, !7, i64 8, !7, i64 12}
!11 = !{!"any pointer", !8, i64 0}
!12 = !{!"_ZTSSt6vectorIbSaIbEE", !13, i64 0}
!13 = !{!"_ZTSSt13_Bvector_baseISaIbEE", !14, i64 0}
!14 = !{!"_ZTSNSt13_Bvector_baseISaIbEE13_Bvector_implE", !15, i64 0}
!15 = !{!"_ZTSNSt13_Bvector_baseISaIbEE18_Bvector_impl_dataE", !16, i64 0, !16, i64 16, !11, i64 32}
!16 = !{!"_ZTSSt13_Bit_iterator", !17, i64 0}
!17 = !{!"_ZTSSt18_Bit_iterator_base", !11, i64 0, !7, i64 8}
!18 = !{!"bool", !8, i64 0}
!19 = !{!"float", !8, i64 0}
!20 = !{!19, !19, i64 0}
!21 = distinct !{!21, !22}
!22 = !{!"llvm.loop.mustprogress"}


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