; LLVM IR from sp-nitech/SPTK :: third_party/REAPER/core/track.ll (ZN4sptk6reaper20ConvertToLogarithmicEPNS0_5TrackE)

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

; Function Attrs: mustprogress uwtable
define dso_local void @_ZN4sptk6reaper20ConvertToLogarithmicEPNS0_5TrackE(ptr noundef %0) #3 {
  %2 = alloca ptr, align 8
  %3 = alloca i32, align 4
  %4 = alloca i32, align 4
  %5 = alloca i32, align 4
  store ptr %0, ptr %2, align 8, !tbaa !5
  call void @llvm.lifetime.start.p0(i64 4, ptr %3) #4
  store i32 0, ptr %3, align 4, !tbaa !9
  br label %6

6:                                                ; preds = %47, %1
  %7 = load i32, ptr %3, align 4, !tbaa !9
  %8 = load ptr, ptr %2, align 8, !tbaa !5
  %9 = call noundef i32 @_ZNK4sptk6reaper5Track10num_framesEv(ptr noundef nonnull align 8 dereferenceable(72) %8)
  %10 = icmp slt i32 %7, %9
  br i1 %10, label %12, label %11

11:                                               ; preds = %6
  store i32 2, ptr %4, align 4
  call void @llvm.lifetime.end.p0(i64 4, ptr %3) #4
  br label %50

12:                                               ; preds = %6
  call void @llvm.lifetime.start.p0(i64 4, ptr %5) #4
  store i32 0, ptr %5, align 4, !tbaa !9
  br label %13

13:                                               ; preds = %43, %12
  %14 = load i32, ptr %5, align 4, !tbaa !9
  %15 = load ptr, ptr %2, align 8, !tbaa !5
  %16 = call noundef i32 @_ZNK4sptk6reaper5Track12num_channelsEv(ptr noundef nonnull align 8 dereferenceable(72) %15)
  %17 = icmp slt i32 %14, %16
  br i1 %17, label %19, label %18

18:                                               ; preds = %13
  store i32 5, ptr %4, align 4
  call void @llvm.lifetime.end.p0(i64 4, ptr %5) #4
  br label %46

19:                                               ; preds = %13
  %20 = load ptr, ptr %2, align 8, !tbaa !5
  %21 = load i32, ptr %3, align 4, !tbaa !9
  %22 = load i32, ptr %5, align 4, !tbaa !9
  %23 = call noundef nonnull align 4 dereferenceable(4) ptr @_ZN4sptk6reaper5Track1aEii(ptr noundef nonnull align 8 dereferenceable(72) %20, i32 noundef %21, i32 noundef %22)
  %24 = load float, ptr %23, align 4, !tbaa !11
  %25 = fcmp ole float %24, 0.000000e+00
  br i1 %25, label %26, label %31

26:                                               ; preds = %19
  %27 = load ptr, ptr %2, align 8, !tbaa !5
  %28 = load i32, ptr %3, align 4, !tbaa !9
  %29 = load i32, ptr %5, align 4, !tbaa !9
  %30 = call noundef nonnull align 4 dereferenceable(4) ptr @_ZN4sptk6reaper5Track1aEii(ptr noundef nonnull align 8 dereferenceable(72) %27, i32 noundef %28, i32 noundef %29)
  store float -1.000000e+10, ptr %30, align 4, !tbaa !11
  br label %42

31:                                               ; preds = %19
  %32 = load ptr, ptr %2, align 8, !tbaa !5
  %33 = load i32, ptr %3, align 4, !tbaa !9
  %34 = load i32, ptr %5, align 4, !tbaa !9
  %35 = call noundef nonnull align 4 dereferenceable(4) ptr @_ZN4sptk6reaper5Track1aEii(ptr noundef nonnull align 8 dereferenceable(72) %32, i32 noundef %33, i32 noundef %34)
  %36 = load float, ptr %35, align 4, !tbaa !11
  %37 = call noundef float @_ZSt3logf(float noundef %36)
  %38 = load ptr, ptr %2, align 8, !tbaa !5
  %39 = load i32, ptr %3, align 4, !tbaa !9
  %40 = load i32, ptr %5, align 4, !tbaa !9
  %41 = call noundef nonnull align 4 dereferenceable(4) ptr @_ZN4sptk6reaper5Track1aEii(ptr noundef nonnull align 8 dereferenceable(72) %38, i32 noundef %39, i32 noundef %40)
  store float %37, ptr %41, align 4, !tbaa !11
  br label %42

42:                                               ; preds = %31, %26
  br label %43

43:                                               ; preds = %42
  %44 = load i32, ptr %5, align 4, !tbaa !9
  %45 = add nsw i32 %44, 1
  store i32 %45, ptr %5, align 4, !tbaa !9
  br label %13, !llvm.loop !13

46:                                               ; preds = %18
  br label %47

47:                                               ; preds = %46
  %48 = load i32, ptr %3, align 4, !tbaa !9
  %49 = add nsw i32 %48, 1
  store i32 %49, ptr %3, align 4, !tbaa !9
  br label %6, !llvm.loop !15

50:                                               ; preds = %11
  ret void
}

; Function Attrs: inlinehint mustprogress nounwind uwtable
declare dso_local noundef float @_ZSt3logf(float noundef) #0

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 = { 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, !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 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 #1 align 2

; Function Attrs: mustprogress uwtable
define dso_local void @_ZN4sptk6reaper20ConvertToLogarithmicEPNS0_5TrackE(ptr noundef nonnull %0) local_unnamed_addr #2 {
  %2 = tail call noundef i32 @_ZNK4sptk6reaper5Track10num_framesEv(ptr noundef nonnull align 8 dereferenceable(72) %0)
  %3 = icmp sgt i32 %2, 0
  br i1 %3, label %.preheader, label %._crit_edge20

.preheader:                                       ; preds = %1, %._crit_edge
  %.01719 = phi i32 [ %6, %._crit_edge ], [ 0, %1 ]
  %4 = tail call noundef i32 @_ZNK4sptk6reaper5Track12num_channelsEv(ptr noundef nonnull align 8 dereferenceable(72) %0)
  %5 = icmp sgt i32 %4, 0
  br i1 %5, label %.lr.ph, label %._crit_edge

._crit_edge20:                                    ; preds = %._crit_edge, %1
  ret void

._crit_edge:                                      ; preds = %18, %.preheader
  %6 = add nuw nsw i32 %.01719, 1
  %7 = tail call noundef i32 @_ZNK4sptk6reaper5Track10num_framesEv(ptr noundef nonnull align 8 dereferenceable(72) %0)
  %8 = icmp slt i32 %6, %7
  br i1 %8, label %.preheader, label %._crit_edge20, !llvm.loop !5

.lr.ph:                                           ; preds = %.preheader, %18
  %.018 = phi i32 [ %19, %18 ], [ 0, %.preheader ]
  %9 = tail call noundef nonnull align 4 dereferenceable(4) ptr @_ZN4sptk6reaper5Track1aEii(ptr noundef nonnull align 8 dereferenceable(72) %0, i32 noundef %.01719, i32 noundef %.018)
  %10 = load float, ptr %9, align 4, !tbaa !7
  %11 = fcmp ugt float %10, 0.000000e+00
  %12 = tail call noundef nonnull align 4 dereferenceable(4) ptr @_ZN4sptk6reaper5Track1aEii(ptr noundef nonnull align 8 dereferenceable(72) %0, i32 noundef %.01719, i32 noundef %.018)
  br i1 %11, label %14, label %13

13:                                               ; preds = %.lr.ph
  store float -1.000000e+10, ptr %12, align 4, !tbaa !7
  br label %18

14:                                               ; preds = %.lr.ph
  %15 = load float, ptr %12, align 4, !tbaa !7
  %16 = tail call noundef float @_ZSt3logf(float noundef %15)
  %17 = tail call noundef nonnull align 4 dereferenceable(4) ptr @_ZN4sptk6reaper5Track1aEii(ptr noundef nonnull align 8 dereferenceable(72) %0, i32 noundef %.01719, i32 noundef %.018)
  store float %16, ptr %17, align 4, !tbaa !7
  br label %18

18:                                               ; preds = %13, %14
  %19 = add nuw nsw i32 %.018, 1
  %20 = tail call noundef i32 @_ZNK4sptk6reaper5Track12num_channelsEv(ptr noundef nonnull align 8 dereferenceable(72) %0)
  %21 = icmp slt i32 %19, %20
  br i1 %21, label %.lr.ph, label %._crit_edge, !llvm.loop !11
}

; Function Attrs: inlinehint mustprogress nounwind uwtable
declare dso_local noundef float @_ZSt3logf(float noundef) local_unnamed_addr #0

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 = { 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 = distinct !{!5, !6}
!6 = !{!"llvm.loop.mustprogress"}
!7 = !{!8, !8, i64 0}
!8 = !{!"float", !9, i64 0}
!9 = !{!"omnipotent char", !10, i64 0}
!10 = !{!"Simple C++ TBAA"}
!11 = distinct !{!11, !6}


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