; LLVM IR from Ryuk17/SpeechAlgorithms :: WebRTC_AEC/src (delay_estimator)

; 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.BinaryDelayEstimatorFarend = type { ptr, ptr, i32 }

@.str.1 = external hidden unnamed_addr constant [90 x i8], align 1
@.str.2 = external hidden unnamed_addr constant [15 x i8], align 1
@__PRETTY_FUNCTION__.WebRtc_AddBinaryFarSpectrum = external hidden unnamed_addr constant [73 x i8], align 1

; Function Attrs: noreturn nounwind
declare void @__assert_fail(ptr noundef, ptr noundef, i32 noundef, ptr noundef) #0

; Function Attrs: nounwind uwtable
define dso_local void @WebRtc_AddBinaryFarSpectrum(ptr noundef %0, i32 noundef %1) #1 {
  %3 = alloca ptr, align 8
  %4 = alloca i32, align 4
  store ptr %0, ptr %3, align 8, !tbaa !5
  store i32 %1, ptr %4, align 4, !tbaa !9
  %5 = load ptr, ptr %3, align 8, !tbaa !5
  %6 = icmp ne ptr %5, null
  br i1 %6, label %7, label %8

7:                                                ; preds = %2
  br label %9

8:                                                ; preds = %2
  call void @__assert_fail(ptr noundef @.str.2, ptr noundef @.str.1, i32 noundef 313, ptr noundef @__PRETTY_FUNCTION__.WebRtc_AddBinaryFarSpectrum) #3
  unreachable

9:                                                ; preds = %7
  %10 = load ptr, ptr %3, align 8, !tbaa !5
  %11 = getelementptr inbounds %struct.BinaryDelayEstimatorFarend, ptr %10, i32 0, i32 1
  %12 = load ptr, ptr %11, align 8, !tbaa !11
  %13 = getelementptr inbounds i32, ptr %12, i64 1
  %14 = load ptr, ptr %3, align 8, !tbaa !5
  %15 = getelementptr inbounds %struct.BinaryDelayEstimatorFarend, ptr %14, i32 0, i32 1
  %16 = load ptr, ptr %15, align 8, !tbaa !11
  %17 = getelementptr inbounds i32, ptr %16, i64 0
  %18 = load ptr, ptr %3, align 8, !tbaa !5
  %19 = getelementptr inbounds %struct.BinaryDelayEstimatorFarend, ptr %18, i32 0, i32 2
  %20 = load i32, ptr %19, align 8, !tbaa !13
  %21 = sub nsw i32 %20, 1
  %22 = sext i32 %21 to i64
  %23 = mul i64 %22, 4
  call void @llvm.memmove.p0.p0.i64(ptr align 4 %13, ptr align 4 %17, i64 %23, i1 false)
  %24 = load i32, ptr %4, align 4, !tbaa !9
  %25 = load ptr, ptr %3, align 8, !tbaa !5
  %26 = getelementptr inbounds %struct.BinaryDelayEstimatorFarend, ptr %25, i32 0, i32 1
  %27 = load ptr, ptr %26, align 8, !tbaa !11
  %28 = getelementptr inbounds i32, ptr %27, i64 0
  store i32 %24, ptr %28, align 4, !tbaa !9
  %29 = load ptr, ptr %3, align 8, !tbaa !5
  %30 = getelementptr inbounds %struct.BinaryDelayEstimatorFarend, ptr %29, i32 0, i32 0
  %31 = load ptr, ptr %30, align 8, !tbaa !14
  %32 = getelementptr inbounds i32, ptr %31, i64 1
  %33 = load ptr, ptr %3, align 8, !tbaa !5
  %34 = getelementptr inbounds %struct.BinaryDelayEstimatorFarend, ptr %33, i32 0, i32 0
  %35 = load ptr, ptr %34, align 8, !tbaa !14
  %36 = getelementptr inbounds i32, ptr %35, i64 0
  %37 = load ptr, ptr %3, align 8, !tbaa !5
  %38 = getelementptr inbounds %struct.BinaryDelayEstimatorFarend, ptr %37, i32 0, i32 2
  %39 = load i32, ptr %38, align 8, !tbaa !13
  %40 = sub nsw i32 %39, 1
  %41 = sext i32 %40 to i64
  %42 = mul i64 %41, 4
  call void @llvm.memmove.p0.p0.i64(ptr align 4 %32, ptr align 4 %36, i64 %42, i1 false)
  %43 = load i32, ptr %4, align 4, !tbaa !9
  %44 = call i32 @BitCount(i32 noundef %43)
  %45 = load ptr, ptr %3, align 8, !tbaa !5
  %46 = getelementptr inbounds %struct.BinaryDelayEstimatorFarend, ptr %45, i32 0, i32 0
  %47 = load ptr, ptr %46, align 8, !tbaa !14
  %48 = getelementptr inbounds i32, ptr %47, i64 0
  store i32 %44, ptr %48, align 4, !tbaa !9
  ret void
}

; Function Attrs: nocallback nofree nounwind willreturn memory(argmem: readwrite)
declare void @llvm.memmove.p0.p0.i64(ptr nocapture writeonly, ptr nocapture readonly, i64, i1 immarg) #2

; Function Attrs: nounwind uwtable
declare hidden i32 @BitCount(i32 noundef) #1

attributes #0 = { noreturn nounwind "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 = { 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 #2 = { nocallback nofree nounwind willreturn memory(argmem: readwrite) }
attributes #3 = { noreturn 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 = !{!"int", !7, i64 0}
!11 = !{!12, !6, i64 8}
!12 = !{!"", !6, i64 0, !6, i64 8, !10, i64 16}
!13 = !{!12, !10, i64 16}
!14 = !{!12, !6, 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"

@.str.1 = external hidden unnamed_addr constant [90 x i8], align 1
@.str.2 = external hidden unnamed_addr constant [15 x i8], align 1
@__PRETTY_FUNCTION__.WebRtc_AddBinaryFarSpectrum = external hidden unnamed_addr constant [73 x i8], align 1

; Function Attrs: noreturn nounwind
declare void @__assert_fail(ptr noundef, ptr noundef, i32 noundef, ptr noundef) local_unnamed_addr #0

; Function Attrs: nounwind uwtable
define dso_local void @WebRtc_AddBinaryFarSpectrum(ptr noundef readonly %0, i32 noundef %1) local_unnamed_addr #1 {
  %.not = icmp eq ptr %0, null
  br i1 %.not, label %3, label %4

3:                                                ; preds = %2
  tail call void @__assert_fail(ptr noundef nonnull @.str.2, ptr noundef nonnull @.str.1, i32 noundef 313, ptr noundef nonnull @__PRETTY_FUNCTION__.WebRtc_AddBinaryFarSpectrum) #3
  unreachable

4:                                                ; preds = %2
  %5 = getelementptr inbounds i8, ptr %0, i64 8
  %6 = load ptr, ptr %5, align 8, !tbaa !5
  %7 = getelementptr inbounds i8, ptr %6, i64 4
  %8 = getelementptr inbounds i8, ptr %0, i64 16
  %9 = load i32, ptr %8, align 8, !tbaa !11
  %10 = add nsw i32 %9, -1
  %11 = sext i32 %10 to i64
  %12 = shl nsw i64 %11, 2
  tail call void @llvm.memmove.p0.p0.i64(ptr nonnull align 4 %7, ptr align 4 %6, i64 %12, i1 false)
  %13 = load ptr, ptr %5, align 8, !tbaa !5
  store i32 %1, ptr %13, align 4, !tbaa !12
  %14 = load ptr, ptr %0, align 8, !tbaa !13
  %15 = getelementptr inbounds i8, ptr %14, i64 4
  %16 = load i32, ptr %8, align 8, !tbaa !11
  %17 = add nsw i32 %16, -1
  %18 = sext i32 %17 to i64
  %19 = shl nsw i64 %18, 2
  tail call void @llvm.memmove.p0.p0.i64(ptr nonnull align 4 %15, ptr align 4 %14, i64 %19, i1 false)
  %20 = tail call i32 @BitCount(i32 noundef %1)
  %21 = load ptr, ptr %0, align 8, !tbaa !13
  store i32 %20, ptr %21, align 4, !tbaa !12
  ret void
}

; Function Attrs: mustprogress nocallback nofree nounwind willreturn memory(argmem: readwrite)
declare void @llvm.memmove.p0.p0.i64(ptr nocapture writeonly, ptr nocapture readonly, i64, i1 immarg) #2

; Function Attrs: nounwind uwtable
declare hidden i32 @BitCount(i32 noundef) local_unnamed_addr #1

attributes #0 = { noreturn nounwind "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 = { 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 #2 = { mustprogress nocallback nofree nounwind willreturn memory(argmem: readwrite) }
attributes #3 = { noreturn 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 8}
!6 = !{!"", !7, i64 0, !7, i64 8, !10, i64 16}
!7 = !{!"any pointer", !8, i64 0}
!8 = !{!"omnipotent char", !9, i64 0}
!9 = !{!"Simple C/C++ TBAA"}
!10 = !{!"int", !8, i64 0}
!11 = !{!6, !10, i64 16}
!12 = !{!10, !10, i64 0}
!13 = !{!6, !7, i64 0}


; Effective O3 passes: EarlyCSEPass,GlobalOptPass,IPSCCPPass,InferFunctionAttrsPass,InstCombinePass,PostOrderFunctionAttrsPass,SROAPass,SimplifyCFGPass,TailCallElimPass