; LLVM IR from Ryuk17/SpeechAlgorithms :: WebRTC_VAD/src (vad_core)

; 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"

%struct.VadInstT_ = type { i32, [4 x i32], %struct.WebRtcSpl_State48khzTo8khz, [12 x i16], [12 x i16], [12 x i16], [12 x i16], i32, i16, i16, [96 x i16], [96 x i16], [6 x i16], [5 x i16], [5 x i16], [4 x i16], [3 x i16], [3 x i16], [3 x i16], [3 x i16], i32 }
%struct.WebRtcSpl_State48khzTo8khz = type { [8 x i32], [16 x i32], [8 x i32], [8 x 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 nounwind willreturn memory(argmem: write)
declare void @llvm.memset.p0.i64(ptr nocapture writeonly, i8, i64, i1 immarg) #1

; Function Attrs: nocallback nofree nosync nounwind willreturn memory(argmem: readwrite)
declare void @llvm.lifetime.end.p0(i64 immarg, ptr nocapture) #0

; Function Attrs: nounwind uwtable
define dso_local i32 @WebRtcVad_CalcVad48khz(ptr noundef %0, ptr noundef %1, i64 noundef %2) #2 {
  %4 = alloca ptr, align 8
  %5 = alloca ptr, align 8
  %6 = alloca i64, align 8
  %7 = alloca i32, align 4
  %8 = alloca i64, align 8
  %9 = alloca [240 x i16], align 16
  %10 = alloca [736 x i32], align 16
  %11 = alloca i64, align 8
  %12 = alloca i64, align 8
  %13 = alloca i64, align 8
  store ptr %0, ptr %4, align 8, !tbaa !5
  store ptr %1, ptr %5, align 8, !tbaa !5
  store i64 %2, ptr %6, align 8, !tbaa !9
  call void @llvm.lifetime.start.p0(i64 4, ptr %7) #4
  call void @llvm.lifetime.start.p0(i64 8, ptr %8) #4
  call void @llvm.lifetime.start.p0(i64 480, ptr %9) #4
  call void @llvm.lifetime.start.p0(i64 2944, ptr %10) #4
  call void @llvm.memset.p0.i64(ptr align 16 %10, i8 0, i64 2944, i1 false)
  call void @llvm.lifetime.start.p0(i64 8, ptr %11) #4
  store i64 480, ptr %11, align 8, !tbaa !9
  call void @llvm.lifetime.start.p0(i64 8, ptr %12) #4
  store i64 80, ptr %12, align 8, !tbaa !9
  call void @llvm.lifetime.start.p0(i64 8, ptr %13) #4
  %14 = load i64, ptr %6, align 8, !tbaa !9
  %15 = udiv i64 %14, 480
  store i64 %15, ptr %13, align 8, !tbaa !9
  store i64 0, ptr %8, align 8, !tbaa !9
  br label %16

16:                                               ; preds = %28, %3
  %17 = load i64, ptr %8, align 8, !tbaa !9
  %18 = load i64, ptr %13, align 8, !tbaa !9
  %19 = icmp ult i64 %17, %18
  br i1 %19, label %20, label %31

20:                                               ; preds = %16
  %21 = load ptr, ptr %5, align 8, !tbaa !5
  %22 = load i64, ptr %8, align 8, !tbaa !9
  %23 = mul i64 %22, 80
  %24 = getelementptr inbounds [240 x i16], ptr %9, i64 0, i64 %23
  %25 = load ptr, ptr %4, align 8, !tbaa !5
  %26 = getelementptr inbounds %struct.VadInstT_, ptr %25, i32 0, i32 2
  %27 = getelementptr inbounds [736 x i32], ptr %10, i64 0, i64 0
  call void @WebRtcSpl_Resample48khzTo8khz(ptr noundef %21, ptr noundef %24, ptr noundef %26, ptr noundef %27)
  br label %28

28:                                               ; preds = %20
  %29 = load i64, ptr %8, align 8, !tbaa !9
  %30 = add i64 %29, 1
  store i64 %30, ptr %8, align 8, !tbaa !9
  br label %16, !llvm.loop !11

31:                                               ; preds = %16
  %32 = load ptr, ptr %4, align 8, !tbaa !5
  %33 = getelementptr inbounds [240 x i16], ptr %9, i64 0, i64 0
  %34 = load i64, ptr %6, align 8, !tbaa !9
  %35 = udiv i64 %34, 6
  %36 = call i32 @WebRtcVad_CalcVad8khz(ptr noundef %32, ptr noundef %33, i64 noundef %35)
  store i32 %36, ptr %7, align 4, !tbaa !13
  %37 = load i32, ptr %7, align 4, !tbaa !13
  call void @llvm.lifetime.end.p0(i64 8, ptr %13) #4
  call void @llvm.lifetime.end.p0(i64 8, ptr %12) #4
  call void @llvm.lifetime.end.p0(i64 8, ptr %11) #4
  call void @llvm.lifetime.end.p0(i64 2944, ptr %10) #4
  call void @llvm.lifetime.end.p0(i64 480, ptr %9) #4
  call void @llvm.lifetime.end.p0(i64 8, ptr %8) #4
  call void @llvm.lifetime.end.p0(i64 4, ptr %7) #4
  ret i32 %37
}

declare void @WebRtcSpl_Resample48khzTo8khz(ptr noundef, ptr noundef, ptr noundef, ptr noundef) #3

; Function Attrs: nounwind uwtable
declare dso_local i32 @WebRtcVad_CalcVad8khz(ptr noundef, ptr noundef, i64 noundef) #2

attributes #0 = { nocallback nofree nosync nounwind willreturn memory(argmem: readwrite) }
attributes #1 = { nocallback nofree nounwind willreturn memory(argmem: write) }
attributes #2 = { 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 = { "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/C++ TBAA"}
!9 = !{!10, !10, i64 0}
!10 = !{!"long", !7, i64 0}
!11 = distinct !{!11, !12}
!12 = !{!"llvm.loop.mustprogress"}
!13 = !{!14, !14, i64 0}
!14 = !{!"int", !7, i64 0}


; 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: 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 nounwind willreturn memory(argmem: write)
declare void @llvm.memset.p0.i64(ptr nocapture writeonly, i8, i64, i1 immarg) #1

; Function Attrs: mustprogress nocallback nofree nosync nounwind willreturn memory(argmem: readwrite)
declare void @llvm.lifetime.end.p0(i64 immarg, ptr nocapture) #0

; Function Attrs: nounwind uwtable
define dso_local i32 @WebRtcVad_CalcVad48khz(ptr noundef %0, ptr noundef %1, i64 noundef %2) local_unnamed_addr #2 {
  %4 = alloca [240 x i16], align 16
  %5 = alloca [736 x i32], align 16
  call void @llvm.lifetime.start.p0(i64 480, ptr nonnull %4) #4
  call void @llvm.lifetime.start.p0(i64 2944, ptr nonnull %5) #4
  call void @llvm.memset.p0.i64(ptr noundef nonnull align 16 dereferenceable(2944) %5, i8 0, i64 2944, i1 false)
  %6 = udiv i64 %2, 480
  %.not = icmp ult i64 %2, 480
  br i1 %.not, label %._crit_edge, label %.lr.ph

.lr.ph:                                           ; preds = %3
  %7 = getelementptr inbounds i8, ptr %0, i64 20
  br label %8

8:                                                ; preds = %.lr.ph, %8
  %.09 = phi i64 [ 0, %.lr.ph ], [ %11, %8 ]
  %9 = mul nuw nsw i64 %.09, 80
  %10 = getelementptr inbounds [240 x i16], ptr %4, i64 0, i64 %9
  call void @WebRtcSpl_Resample48khzTo8khz(ptr noundef %1, ptr noundef nonnull %10, ptr noundef nonnull %7, ptr noundef nonnull %5) #4
  %11 = add nuw nsw i64 %.09, 1
  %exitcond.not = icmp eq i64 %11, %6
  br i1 %exitcond.not, label %._crit_edge, label %8, !llvm.loop !5

._crit_edge:                                      ; preds = %8, %3
  %12 = udiv i64 %2, 6
  %13 = call i32 @WebRtcVad_CalcVad8khz(ptr noundef %0, ptr noundef nonnull %4, i64 noundef %12)
  call void @llvm.lifetime.end.p0(i64 2944, ptr nonnull %5) #4
  call void @llvm.lifetime.end.p0(i64 480, ptr nonnull %4) #4
  ret i32 %13
}

declare void @WebRtcSpl_Resample48khzTo8khz(ptr noundef, ptr noundef, ptr noundef, ptr noundef) local_unnamed_addr #3

; Function Attrs: nounwind uwtable
declare dso_local i32 @WebRtcVad_CalcVad8khz(ptr noundef, ptr noundef, i64 noundef) local_unnamed_addr #2

attributes #0 = { mustprogress nocallback nofree nosync nounwind willreturn memory(argmem: readwrite) }
attributes #1 = { mustprogress nocallback nofree nounwind willreturn memory(argmem: write) }
attributes #2 = { 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 = { "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 = distinct !{!5, !6}
!6 = !{!"llvm.loop.mustprogress"}


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