; LLVM IR from kdrag0n/fxdsp :: external/oboe/src/flowgraph (MultiToMonoConverter)

; 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.oboe::flowgraph::MultiToMonoConverter" = type { %"class.oboe::flowgraph::FlowGraphNode", %"class.oboe::flowgraph::FlowGraphPortFloatInput", %"class.oboe::flowgraph::FlowGraphPortFloatOutput" }
%"class.oboe::flowgraph::FlowGraphNode" = type { ptr, i64, %"class.std::vector", i8, i8, i32 }
%"class.std::vector" = type { %"struct.std::_Vector_base" }
%"struct.std::_Vector_base" = type { %"struct.std::_Vector_base<std::reference_wrapper<oboe::flowgraph::FlowGraphPort>, std::allocator<std::reference_wrapper<oboe::flowgraph::FlowGraphPort>>>::_Vector_impl" }
%"struct.std::_Vector_base<std::reference_wrapper<oboe::flowgraph::FlowGraphPort>, std::allocator<std::reference_wrapper<oboe::flowgraph::FlowGraphPort>>>::_Vector_impl" = type { %"struct.std::_Vector_base<std::reference_wrapper<oboe::flowgraph::FlowGraphPort>, std::allocator<std::reference_wrapper<oboe::flowgraph::FlowGraphPort>>>::_Vector_impl_data" }
%"struct.std::_Vector_base<std::reference_wrapper<oboe::flowgraph::FlowGraphPort>, std::allocator<std::reference_wrapper<oboe::flowgraph::FlowGraphPort>>>::_Vector_impl_data" = type { ptr, ptr, ptr }
%"class.oboe::flowgraph::FlowGraphPortFloatInput" = type { %"class.oboe::flowgraph::FlowGraphPortFloat", ptr }
%"class.oboe::flowgraph::FlowGraphPortFloat" = type { %"class.oboe::flowgraph::FlowGraphPort.base", i32, %"class.std::unique_ptr" }
%"class.oboe::flowgraph::FlowGraphPort.base" = type <{ ptr, ptr, i32 }>
%"class.std::unique_ptr" = type { %"struct.std::__uniq_ptr_data" }
%"struct.std::__uniq_ptr_data" = type { %"class.std::__uniq_ptr_impl" }
%"class.std::__uniq_ptr_impl" = type { %"class.std::tuple" }
%"class.std::tuple" = type { %"struct.std::_Tuple_impl" }
%"struct.std::_Tuple_impl" = type { %"struct.std::_Head_base.1" }
%"struct.std::_Head_base.1" = type { ptr }
%"class.oboe::flowgraph::FlowGraphPortFloatOutput" = type { %"class.oboe::flowgraph::FlowGraphPortFloat" }

; Function Attrs: mustprogress uwtable
define dso_local noundef i32 @_ZN4oboe9flowgraph20MultiToMonoConverter9onProcessEi(ptr noundef nonnull align 8 dereferenceable(120) %0, i32 noundef %1) unnamed_addr #0 align 2 {
  %3 = alloca ptr, align 8
  %4 = alloca i32, align 4
  %5 = alloca ptr, align 8
  %6 = alloca ptr, align 8
  %7 = alloca i32, align 4
  %8 = alloca i32, align 4
  store ptr %0, ptr %3, align 8, !tbaa !5
  store i32 %1, ptr %4, align 4, !tbaa !9
  %9 = load ptr, ptr %3, align 8
  call void @llvm.lifetime.start.p0(i64 8, ptr %5) #4
  %10 = getelementptr inbounds %"class.oboe::flowgraph::MultiToMonoConverter", ptr %9, i32 0, i32 1
  %11 = call noundef ptr @_ZN4oboe9flowgraph23FlowGraphPortFloatInput9getBufferEv(ptr noundef nonnull align 8 dereferenceable(40) %10)
  store ptr %11, ptr %5, align 8, !tbaa !5
  call void @llvm.lifetime.start.p0(i64 8, ptr %6) #4
  %12 = getelementptr inbounds %"class.oboe::flowgraph::MultiToMonoConverter", ptr %9, i32 0, i32 2
  %13 = call noundef ptr @_ZN4oboe9flowgraph18FlowGraphPortFloat9getBufferEv(ptr noundef nonnull align 8 dereferenceable(32) %12)
  store ptr %13, ptr %6, align 8, !tbaa !5
  call void @llvm.lifetime.start.p0(i64 4, ptr %7) #4
  %14 = getelementptr inbounds %"class.oboe::flowgraph::MultiToMonoConverter", ptr %9, i32 0, i32 1
  %15 = call noundef i32 @_ZNK4oboe9flowgraph13FlowGraphPort18getSamplesPerFrameEv(ptr noundef nonnull align 8 dereferenceable(20) %14)
  store i32 %15, ptr %7, align 4, !tbaa !9
  call void @llvm.lifetime.start.p0(i64 4, ptr %8) #4
  store i32 0, ptr %8, align 4, !tbaa !9
  br label %16

16:                                               ; preds = %30, %2
  %17 = load i32, ptr %8, align 4, !tbaa !9
  %18 = load i32, ptr %4, align 4, !tbaa !9
  %19 = icmp slt i32 %17, %18
  br i1 %19, label %21, label %20

20:                                               ; preds = %16
  call void @llvm.lifetime.end.p0(i64 4, ptr %8) #4
  br label %33

21:                                               ; preds = %16
  %22 = load ptr, ptr %5, align 8, !tbaa !5
  %23 = load float, ptr %22, align 4, !tbaa !11
  %24 = load ptr, ptr %6, align 8, !tbaa !5
  %25 = getelementptr inbounds float, ptr %24, i32 1
  store ptr %25, ptr %6, align 8, !tbaa !5
  store float %23, ptr %24, align 4, !tbaa !11
  %26 = load i32, ptr %7, align 4, !tbaa !9
  %27 = load ptr, ptr %5, align 8, !tbaa !5
  %28 = sext i32 %26 to i64
  %29 = getelementptr inbounds float, ptr %27, i64 %28
  store ptr %29, ptr %5, align 8, !tbaa !5
  br label %30

30:                                               ; preds = %21
  %31 = load i32, ptr %8, align 4, !tbaa !9
  %32 = add nsw i32 %31, 1
  store i32 %32, ptr %8, align 4, !tbaa !9
  br label %16, !llvm.loop !13

33:                                               ; preds = %20
  %34 = load i32, ptr %4, align 4, !tbaa !9
  call void @llvm.lifetime.end.p0(i64 4, ptr %7) #4
  call void @llvm.lifetime.end.p0(i64 8, ptr %6) #4
  call void @llvm.lifetime.end.p0(i64 8, ptr %5) #4
  ret i32 %34
}

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

declare noundef ptr @_ZN4oboe9flowgraph23FlowGraphPortFloatInput9getBufferEv(ptr noundef nonnull align 8 dereferenceable(40)) unnamed_addr #2

; Function Attrs: mustprogress nounwind uwtable
declare dso_local noundef ptr @_ZN4oboe9flowgraph18FlowGraphPortFloat9getBufferEv(ptr noundef nonnull align 8 dereferenceable(32)) unnamed_addr #3 align 2

; Function Attrs: mustprogress nounwind uwtable
declare dso_local noundef i32 @_ZNK4oboe9flowgraph13FlowGraphPort18getSamplesPerFrameEv(ptr noundef nonnull align 8 dereferenceable(20)) #3 align 2

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

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 = { nocallback nofree nosync nounwind willreturn memory(argmem: readwrite) }
attributes #2 = { "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 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 #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"}


; 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 uwtable
define dso_local noundef i32 @_ZN4oboe9flowgraph20MultiToMonoConverter9onProcessEi(ptr noundef nonnull align 8 dereferenceable(120) %0, i32 noundef returned %1) unnamed_addr #0 align 2 {
  %3 = getelementptr inbounds i8, ptr %0, i64 48
  %4 = tail call noundef ptr @_ZN4oboe9flowgraph23FlowGraphPortFloatInput9getBufferEv(ptr noundef nonnull align 8 dereferenceable(40) %3)
  %5 = getelementptr inbounds i8, ptr %0, i64 88
  %6 = tail call noundef ptr @_ZN4oboe9flowgraph18FlowGraphPortFloat9getBufferEv(ptr noundef nonnull align 8 dereferenceable(32) %5)
  %7 = tail call noundef i32 @_ZNK4oboe9flowgraph13FlowGraphPort18getSamplesPerFrameEv(ptr noundef nonnull align 8 dereferenceable(20) %3)
  %8 = icmp sgt i32 %1, 0
  br i1 %8, label %.lr.ph, label %._crit_edge

.lr.ph:                                           ; preds = %2
  %9 = sext i32 %7 to i64
  %xtraiter = and i32 %1, 7
  %10 = icmp ult i32 %1, 8
  br i1 %10, label %._crit_edge.loopexit.unr-lcssa, label %.lr.ph.new

.lr.ph.new:                                       ; preds = %.lr.ph
  %unroll_iter = and i32 %1, 2147483640
  br label %14

._crit_edge.loopexit.unr-lcssa:                   ; preds = %14, %.lr.ph
  %.0812.unr = phi ptr [ %4, %.lr.ph ], [ %38, %14 ]
  %.0911.unr = phi ptr [ %6, %.lr.ph ], [ %37, %14 ]
  %lcmp.mod.not = icmp eq i32 %xtraiter, 0
  br i1 %lcmp.mod.not, label %._crit_edge, label %.epil.preheader

.epil.preheader:                                  ; preds = %._crit_edge.loopexit.unr-lcssa, %.epil.preheader
  %.0812.epil = phi ptr [ %13, %.epil.preheader ], [ %.0812.unr, %._crit_edge.loopexit.unr-lcssa ]
  %.0911.epil = phi ptr [ %12, %.epil.preheader ], [ %.0911.unr, %._crit_edge.loopexit.unr-lcssa ]
  %epil.iter = phi i32 [ %epil.iter.next, %.epil.preheader ], [ 0, %._crit_edge.loopexit.unr-lcssa ]
  %11 = load float, ptr %.0812.epil, align 4, !tbaa !5
  %12 = getelementptr inbounds i8, ptr %.0911.epil, i64 4
  store float %11, ptr %.0911.epil, align 4, !tbaa !5
  %13 = getelementptr inbounds float, ptr %.0812.epil, i64 %9
  %epil.iter.next = add i32 %epil.iter, 1
  %epil.iter.cmp.not = icmp eq i32 %epil.iter.next, %xtraiter
  br i1 %epil.iter.cmp.not, label %._crit_edge, label %.epil.preheader, !llvm.loop !9

._crit_edge:                                      ; preds = %._crit_edge.loopexit.unr-lcssa, %.epil.preheader, %2
  ret i32 %1

14:                                               ; preds = %14, %.lr.ph.new
  %.0812 = phi ptr [ %4, %.lr.ph.new ], [ %38, %14 ]
  %.0911 = phi ptr [ %6, %.lr.ph.new ], [ %37, %14 ]
  %niter = phi i32 [ 0, %.lr.ph.new ], [ %niter.next.7, %14 ]
  %15 = load float, ptr %.0812, align 4, !tbaa !5
  %16 = getelementptr inbounds i8, ptr %.0911, i64 4
  store float %15, ptr %.0911, align 4, !tbaa !5
  %17 = getelementptr inbounds float, ptr %.0812, i64 %9
  %18 = load float, ptr %17, align 4, !tbaa !5
  %19 = getelementptr inbounds i8, ptr %.0911, i64 8
  store float %18, ptr %16, align 4, !tbaa !5
  %20 = getelementptr inbounds float, ptr %17, i64 %9
  %21 = load float, ptr %20, align 4, !tbaa !5
  %22 = getelementptr inbounds i8, ptr %.0911, i64 12
  store float %21, ptr %19, align 4, !tbaa !5
  %23 = getelementptr inbounds float, ptr %20, i64 %9
  %24 = load float, ptr %23, align 4, !tbaa !5
  %25 = getelementptr inbounds i8, ptr %.0911, i64 16
  store float %24, ptr %22, align 4, !tbaa !5
  %26 = getelementptr inbounds float, ptr %23, i64 %9
  %27 = load float, ptr %26, align 4, !tbaa !5
  %28 = getelementptr inbounds i8, ptr %.0911, i64 20
  store float %27, ptr %25, align 4, !tbaa !5
  %29 = getelementptr inbounds float, ptr %26, i64 %9
  %30 = load float, ptr %29, align 4, !tbaa !5
  %31 = getelementptr inbounds i8, ptr %.0911, i64 24
  store float %30, ptr %28, align 4, !tbaa !5
  %32 = getelementptr inbounds float, ptr %29, i64 %9
  %33 = load float, ptr %32, align 4, !tbaa !5
  %34 = getelementptr inbounds i8, ptr %.0911, i64 28
  store float %33, ptr %31, align 4, !tbaa !5
  %35 = getelementptr inbounds float, ptr %32, i64 %9
  %36 = load float, ptr %35, align 4, !tbaa !5
  %37 = getelementptr inbounds i8, ptr %.0911, i64 32
  store float %36, ptr %34, align 4, !tbaa !5
  %38 = getelementptr inbounds float, ptr %35, i64 %9
  %niter.next.7 = add i32 %niter, 8
  %niter.ncmp.7 = icmp eq i32 %niter.next.7, %unroll_iter
  br i1 %niter.ncmp.7, label %._crit_edge.loopexit.unr-lcssa, label %14, !llvm.loop !11
}

declare noundef ptr @_ZN4oboe9flowgraph23FlowGraphPortFloatInput9getBufferEv(ptr noundef nonnull align 8 dereferenceable(40)) unnamed_addr #1

; Function Attrs: mustprogress nounwind uwtable
declare dso_local noundef ptr @_ZN4oboe9flowgraph18FlowGraphPortFloat9getBufferEv(ptr noundef nonnull align 8 dereferenceable(32)) unnamed_addr #2 align 2

; Function Attrs: mustprogress nounwind uwtable
declare dso_local noundef i32 @_ZNK4oboe9flowgraph13FlowGraphPort18getSamplesPerFrameEv(ptr noundef nonnull align 8 dereferenceable(20)) local_unnamed_addr #2 align 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 = { 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" }

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


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