; LLVM IR from merpheus-dev/LavaEngine :: src/Utils/soloud/src/filter/soloud_fftfilter.ll (ZN6SoLoud17FFTFilterInstanceC2Ev)

; 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.SoLoud::FFTFilterInstance" = type { %"class.SoLoud::FilterInstance", ptr, ptr, ptr, [8 x i32], ptr }
%"class.SoLoud::FilterInstance" = type { ptr, i32, i32, ptr, ptr }

@_ZTVN6SoLoud17FFTFilterInstanceE = external dso_local unnamed_addr constant { [13 x ptr] }, align 8

; Function Attrs: mustprogress uwtable
define dso_local void @_ZN6SoLoud17FFTFilterInstanceC2Ev(ptr noundef nonnull align 8 dereferenceable(96) %0) unnamed_addr #0 align 2 {
  %2 = alloca ptr, align 8
  %3 = alloca i32, align 4
  store ptr %0, ptr %2, align 8, !tbaa !5
  %4 = load ptr, ptr %2, align 8
  call void @_ZN6SoLoud14FilterInstanceC2Ev(ptr noundef nonnull align 8 dereferenceable(32) %4)
  store ptr getelementptr inbounds inrange(-16, 88) ({ [13 x ptr] }, ptr @_ZTVN6SoLoud17FFTFilterInstanceE, i32 0, i32 0, i32 2), ptr %4, align 8, !tbaa !9
  %5 = getelementptr inbounds %"class.SoLoud::FFTFilterInstance", ptr %4, i32 0, i32 5
  store ptr null, ptr %5, align 8, !tbaa !11
  %6 = getelementptr inbounds %"class.SoLoud::FFTFilterInstance", ptr %4, i32 0, i32 2
  store ptr null, ptr %6, align 8, !tbaa !15
  %7 = getelementptr inbounds %"class.SoLoud::FFTFilterInstance", ptr %4, i32 0, i32 3
  store ptr null, ptr %7, align 8, !tbaa !16
  %8 = getelementptr inbounds %"class.SoLoud::FFTFilterInstance", ptr %4, i32 0, i32 1
  store ptr null, ptr %8, align 8, !tbaa !17
  call void @llvm.lifetime.start.p0(i64 4, ptr %3) #3
  store i32 0, ptr %3, align 4, !tbaa !18
  br label %9

9:                                                ; preds = %17, %1
  %10 = load i32, ptr %3, align 4, !tbaa !18
  %11 = icmp slt i32 %10, 8
  br i1 %11, label %12, label %20

12:                                               ; preds = %9
  %13 = getelementptr inbounds %"class.SoLoud::FFTFilterInstance", ptr %4, i32 0, i32 4
  %14 = load i32, ptr %3, align 4, !tbaa !18
  %15 = sext i32 %14 to i64
  %16 = getelementptr inbounds [8 x i32], ptr %13, i64 0, i64 %15
  store i32 0, ptr %16, align 4, !tbaa !18
  br label %17

17:                                               ; preds = %12
  %18 = load i32, ptr %3, align 4, !tbaa !18
  %19 = add nsw i32 %18, 1
  store i32 %19, ptr %3, align 4, !tbaa !18
  br label %9, !llvm.loop !19

20:                                               ; preds = %9
  call void @llvm.lifetime.end.p0(i64 4, ptr %3) #3
  ret void
}

declare void @_ZN6SoLoud14FilterInstanceC2Ev(ptr noundef nonnull align 8 dereferenceable(32)) unnamed_addr #1

; Function Attrs: nocallback nofree nosync nounwind willreturn memory(argmem: readwrite)
declare void @llvm.lifetime.start.p0(i64 immarg, ptr nocapture) #2

; Function Attrs: nocallback nofree nosync nounwind willreturn memory(argmem: readwrite)
declare void @llvm.lifetime.end.p0(i64 immarg, ptr nocapture) #2

attributes #0 = { 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 = { "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 nosync nounwind willreturn memory(argmem: readwrite) }
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, !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 = !{!"vtable pointer", !8, i64 0}
!11 = !{!12, !6, i64 88}
!12 = !{!"_ZTSN6SoLoud17FFTFilterInstanceE", !13, i64 0, !6, i64 32, !6, i64 40, !6, i64 48, !7, i64 56, !6, i64 88}
!13 = !{!"_ZTSN6SoLoud14FilterInstanceE", !14, i64 8, !14, i64 12, !6, i64 16, !6, i64 24}
!14 = !{!"int", !7, i64 0}
!15 = !{!12, !6, i64 40}
!16 = !{!12, !6, i64 48}
!17 = !{!12, !6, i64 32}
!18 = !{!14, !14, i64 0}
!19 = distinct !{!19, !20}
!20 = !{!"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"

@_ZTVN6SoLoud17FFTFilterInstanceE = external dso_local unnamed_addr constant { [13 x ptr] }, align 8

; Function Attrs: mustprogress uwtable
define dso_local void @_ZN6SoLoud17FFTFilterInstanceC2Ev(ptr noundef nonnull align 8 dereferenceable(96) %0) unnamed_addr #0 align 2 {
  tail call void @_ZN6SoLoud14FilterInstanceC2Ev(ptr noundef nonnull align 8 dereferenceable(32) %0)
  store ptr getelementptr inbounds inrange(-16, 88) (i8, ptr @_ZTVN6SoLoud17FFTFilterInstanceE, i64 16), ptr %0, align 8, !tbaa !5
  %2 = getelementptr inbounds i8, ptr %0, i64 32
  tail call void @llvm.memset.p0.i64(ptr noundef nonnull align 8 dereferenceable(64) %2, i8 0, i64 64, i1 false)
  ret void
}

declare void @_ZN6SoLoud14FilterInstanceC2Ev(ptr noundef nonnull align 8 dereferenceable(32)) unnamed_addr #1

; Function Attrs: nocallback nofree nounwind willreturn memory(argmem: write)
declare void @llvm.memset.p0.i64(ptr nocapture writeonly, i8, i64, i1 immarg) #2

attributes #0 = { 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 = { "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: write) }

!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 = !{!"vtable pointer", !7, i64 0}
!7 = !{!"Simple C++ TBAA"}


; Effective O3 passes: GVNPass,GlobalOptPass,IndVarSimplifyPass,InferFunctionAttrsPass,InstCombinePass,LICMPass,LoopIdiomRecognizePass,LoopRotatePass,MemCpyOptPass,SROAPass,SimplifyCFGPass,TailCallElimPass