; LLVM IR from sp-nitech/SPTK :: third_party/REAPER/core/track.ll (ZN4sptk6reaper19TrackToFloatPointerERKNS0_5TrackEPi)

; 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"

; Function Attrs: inlinehint mustprogress nounwind uwtable
declare dso_local noundef i32 @_ZNK4sptk6reaper5Track10num_framesEv(ptr noundef nonnull align 8 dereferenceable(72)) #0 align 2

; Function Attrs: inlinehint mustprogress nounwind uwtable
declare dso_local noundef i32 @_ZNK4sptk6reaper5Track12num_channelsEv(ptr noundef nonnull align 8 dereferenceable(72)) #0 align 2

; Function Attrs: nocallback nofree nosync nounwind willreturn memory(argmem: readwrite)
declare void @llvm.lifetime.start.p0(i64 immarg, ptr nocapture) #1

; Function Attrs: nocallback nofree nosync nounwind willreturn memory(argmem: readwrite)
declare void @llvm.lifetime.end.p0(i64 immarg, ptr nocapture) #1

; Function Attrs: inlinehint mustprogress nounwind uwtable
declare dso_local noundef float @_ZNK4sptk6reaper5Track1aEii(ptr noundef nonnull align 8 dereferenceable(72), i32 noundef, i32 noundef) #0 align 2

; Function Attrs: mustprogress uwtable
define dso_local noundef ptr @_ZN4sptk6reaper19TrackToFloatPointerERKNS0_5TrackEPi(ptr noundef nonnull align 8 dereferenceable(72) %0, ptr noundef %1) #2 {
  %3 = alloca ptr, align 8
  %4 = alloca ptr, align 8
  %5 = alloca ptr, align 8
  %6 = alloca i32, align 4
  %7 = alloca i32, align 4
  %8 = alloca i32, align 4
  %9 = alloca i32, align 4
  store ptr %0, ptr %3, align 8, !tbaa !5
  store ptr %1, ptr %4, align 8, !tbaa !5
  %10 = load ptr, ptr %3, align 8, !tbaa !5
  %11 = call noundef i32 @_ZNK4sptk6reaper5Track12num_channelsEv(ptr noundef nonnull align 8 dereferenceable(72) %10)
  %12 = load ptr, ptr %3, align 8, !tbaa !5
  %13 = call noundef i32 @_ZNK4sptk6reaper5Track10num_framesEv(ptr noundef nonnull align 8 dereferenceable(72) %12)
  %14 = mul nsw i32 %11, %13
  %15 = load ptr, ptr %4, align 8, !tbaa !5
  store i32 %14, ptr %15, align 4, !tbaa !9
  call void @llvm.lifetime.start.p0(i64 8, ptr %5) #5
  %16 = load ptr, ptr %4, align 8, !tbaa !5
  %17 = load i32, ptr %16, align 4, !tbaa !9
  %18 = sext i32 %17 to i64
  %19 = call { i64, i1 } @llvm.umul.with.overflow.i64(i64 %18, i64 4)
  %20 = extractvalue { i64, i1 } %19, 1
  %21 = extractvalue { i64, i1 } %19, 0
  %22 = select i1 %20, i64 -1, i64 %21
  %23 = call noalias noundef nonnull ptr @_Znam(i64 noundef %22) #6
  store ptr %23, ptr %5, align 8, !tbaa !5
  call void @llvm.lifetime.start.p0(i64 4, ptr %6) #5
  store i32 0, ptr %6, align 4, !tbaa !9
  call void @llvm.lifetime.start.p0(i64 4, ptr %7) #5
  store i32 0, ptr %7, align 4, !tbaa !9
  br label %24

24:                                               ; preds = %51, %2
  %25 = load i32, ptr %7, align 4, !tbaa !9
  %26 = load ptr, ptr %3, align 8, !tbaa !5
  %27 = call noundef i32 @_ZNK4sptk6reaper5Track10num_framesEv(ptr noundef nonnull align 8 dereferenceable(72) %26)
  %28 = icmp slt i32 %25, %27
  br i1 %28, label %30, label %29

29:                                               ; preds = %24
  store i32 2, ptr %8, align 4
  call void @llvm.lifetime.end.p0(i64 4, ptr %7) #5
  br label %54

30:                                               ; preds = %24
  call void @llvm.lifetime.start.p0(i64 4, ptr %9) #5
  store i32 0, ptr %9, align 4, !tbaa !9
  br label %31

31:                                               ; preds = %47, %30
  %32 = load i32, ptr %9, align 4, !tbaa !9
  %33 = load ptr, ptr %3, align 8, !tbaa !5
  %34 = call noundef i32 @_ZNK4sptk6reaper5Track12num_channelsEv(ptr noundef nonnull align 8 dereferenceable(72) %33)
  %35 = icmp slt i32 %32, %34
  br i1 %35, label %37, label %36

36:                                               ; preds = %31
  store i32 5, ptr %8, align 4
  call void @llvm.lifetime.end.p0(i64 4, ptr %9) #5
  br label %50

37:                                               ; preds = %31
  %38 = load ptr, ptr %3, align 8, !tbaa !5
  %39 = load i32, ptr %7, align 4, !tbaa !9
  %40 = load i32, ptr %9, align 4, !tbaa !9
  %41 = call noundef float @_ZNK4sptk6reaper5Track1aEii(ptr noundef nonnull align 8 dereferenceable(72) %38, i32 noundef %39, i32 noundef %40)
  %42 = load ptr, ptr %5, align 8, !tbaa !5
  %43 = load i32, ptr %6, align 4, !tbaa !9
  %44 = add i32 %43, 1
  store i32 %44, ptr %6, align 4, !tbaa !9
  %45 = zext i32 %43 to i64
  %46 = getelementptr inbounds float, ptr %42, i64 %45
  store float %41, ptr %46, align 4, !tbaa !11
  br label %47

47:                                               ; preds = %37
  %48 = load i32, ptr %9, align 4, !tbaa !9
  %49 = add nsw i32 %48, 1
  store i32 %49, ptr %9, align 4, !tbaa !9
  br label %31, !llvm.loop !13

50:                                               ; preds = %36
  br label %51

51:                                               ; preds = %50
  %52 = load i32, ptr %7, align 4, !tbaa !9
  %53 = add nsw i32 %52, 1
  store i32 %53, ptr %7, align 4, !tbaa !9
  br label %24, !llvm.loop !15

54:                                               ; preds = %29
  %55 = load ptr, ptr %5, align 8, !tbaa !5
  store i32 1, ptr %8, align 4
  call void @llvm.lifetime.end.p0(i64 4, ptr %6) #5
  call void @llvm.lifetime.end.p0(i64 8, ptr %5) #5
  ret ptr %55
}

; Function Attrs: nocallback nofree nosync nounwind speculatable willreturn memory(none)
declare { i64, i1 } @llvm.umul.with.overflow.i64(i64, i64) #3

; Function Attrs: nobuiltin allocsize(0)
declare noundef nonnull ptr @_Znam(i64 noundef) #4

attributes #0 = { inlinehint 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 #1 = { nocallback nofree nosync nounwind willreturn memory(argmem: readwrite) }
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 = { nocallback nofree nosync nounwind speculatable willreturn memory(none) }
attributes #4 = { nobuiltin allocsize(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 #5 = { nounwind }
attributes #6 = { builtin allocsize(0) }

!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, !12, i64 0}
!12 = !{!"float", !7, i64 0}
!13 = distinct !{!13, !14}
!14 = !{!"llvm.loop.mustprogress"}
!15 = distinct !{!15, !14}


; 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 nounwind uwtable
declare dso_local noundef i32 @_ZNK4sptk6reaper5Track10num_framesEv(ptr noundef nonnull align 8 dereferenceable(72)) local_unnamed_addr #0 align 2

; Function Attrs: inlinehint mustprogress nounwind uwtable
declare dso_local noundef i32 @_ZNK4sptk6reaper5Track12num_channelsEv(ptr noundef nonnull align 8 dereferenceable(72)) local_unnamed_addr #0 align 2

; Function Attrs: inlinehint mustprogress nounwind uwtable
declare dso_local noundef float @_ZNK4sptk6reaper5Track1aEii(ptr noundef nonnull align 8 dereferenceable(72), i32 noundef, i32 noundef) local_unnamed_addr #0 align 2

; Function Attrs: mustprogress uwtable
define dso_local noalias noundef nonnull ptr @_ZN4sptk6reaper19TrackToFloatPointerERKNS0_5TrackEPi(ptr noundef nonnull align 8 dereferenceable(72) %0, ptr nocapture noundef writeonly %1) local_unnamed_addr #1 {
  %3 = tail call noundef i32 @_ZNK4sptk6reaper5Track12num_channelsEv(ptr noundef nonnull align 8 dereferenceable(72) %0)
  %4 = tail call noundef i32 @_ZNK4sptk6reaper5Track10num_framesEv(ptr noundef nonnull align 8 dereferenceable(72) %0)
  %5 = mul nsw i32 %4, %3
  store i32 %5, ptr %1, align 4, !tbaa !5
  %6 = zext nneg i32 %5 to i64
  %7 = icmp slt i32 %5, 0
  %8 = shl nuw nsw i64 %6, 2
  %9 = select i1 %7, i64 -1, i64 %8
  %10 = tail call noalias noundef nonnull ptr @_Znam(i64 noundef %9) #3
  %11 = tail call noundef i32 @_ZNK4sptk6reaper5Track10num_framesEv(ptr noundef nonnull align 8 dereferenceable(72) %0)
  %12 = icmp sgt i32 %11, 0
  br i1 %12, label %.preheader, label %._crit_edge21

.preheader:                                       ; preds = %2, %._crit_edge
  %.01520 = phi i32 [ %15, %._crit_edge ], [ 0, %2 ]
  %.01619 = phi i32 [ %.1.lcssa, %._crit_edge ], [ 0, %2 ]
  %13 = tail call noundef i32 @_ZNK4sptk6reaper5Track12num_channelsEv(ptr noundef nonnull align 8 dereferenceable(72) %0)
  %14 = icmp sgt i32 %13, 0
  br i1 %14, label %.lr.ph, label %._crit_edge

._crit_edge21:                                    ; preds = %._crit_edge, %2
  ret ptr %10

._crit_edge:                                      ; preds = %.lr.ph, %.preheader
  %.1.lcssa = phi i32 [ %.01619, %.preheader ], [ %19, %.lr.ph ]
  %15 = add nuw nsw i32 %.01520, 1
  %16 = tail call noundef i32 @_ZNK4sptk6reaper5Track10num_framesEv(ptr noundef nonnull align 8 dereferenceable(72) %0)
  %17 = icmp slt i32 %15, %16
  br i1 %17, label %.preheader, label %._crit_edge21, !llvm.loop !9

.lr.ph:                                           ; preds = %.preheader, %.lr.ph
  %.018 = phi i32 [ %22, %.lr.ph ], [ 0, %.preheader ]
  %.117 = phi i32 [ %19, %.lr.ph ], [ %.01619, %.preheader ]
  %18 = tail call noundef float @_ZNK4sptk6reaper5Track1aEii(ptr noundef nonnull align 8 dereferenceable(72) %0, i32 noundef %.01520, i32 noundef %.018)
  %19 = add i32 %.117, 1
  %20 = zext i32 %.117 to i64
  %21 = getelementptr inbounds float, ptr %10, i64 %20
  store float %18, ptr %21, align 4, !tbaa !11
  %22 = add nuw nsw i32 %.018, 1
  %23 = tail call noundef i32 @_ZNK4sptk6reaper5Track12num_channelsEv(ptr noundef nonnull align 8 dereferenceable(72) %0)
  %24 = icmp slt i32 %22, %23
  br i1 %24, label %.lr.ph, label %._crit_edge, !llvm.loop !13
}

; Function Attrs: nobuiltin allocsize(0)
declare noundef nonnull ptr @_Znam(i64 noundef) local_unnamed_addr #2

attributes #0 = { inlinehint 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 #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 = { nobuiltin allocsize(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 = { builtin allocsize(0) }

!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 = !{!"int", !7, i64 0}
!7 = !{!"omnipotent char", !8, i64 0}
!8 = !{!"Simple C++ TBAA"}
!9 = distinct !{!9, !10}
!10 = !{!"llvm.loop.mustprogress"}
!11 = !{!12, !12, i64 0}
!12 = !{!"float", !7, i64 0}
!13 = distinct !{!13, !10}


; Effective O3 passes: CorrelatedValuePropagationPass,EarlyCSEPass,GVNPass,GlobalOptPass,InferFunctionAttrsPass,InstCombinePass,InstSimplifyPass,JumpThreadingPass,LCSSAPass,LoopRotatePass,LoopSimplifyPass,LoopUnrollPass,PostOrderFunctionAttrsPass,ReassociatePass,SROAPass,SimplifyCFGPass,TailCallElimPass