; LLVM IR from lichen-community-systems/signaletic :: libsignaletic/src (libsignaletic)

; 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.sig_dsp_Delay = type { %struct.sig_dsp_Signal, %struct.sig_dsp_Delay_Inputs, %struct.sig_dsp_Signal_SingleMonoOutput, ptr }
%struct.sig_dsp_Signal = type { ptr, ptr }
%struct.sig_dsp_Delay_Inputs = type { ptr, ptr }
%struct.sig_dsp_Signal_SingleMonoOutput = type { ptr }
%struct.sig_AudioSettings = type { float, i64, i64 }

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

; Function Attrs: inlinehint nounwind uwtable
declare dso_local void @sig_dsp_Delay_read(ptr noundef, float noundef, i64 noundef) #1

; Function Attrs: nounwind uwtable
define dso_local void @sig_dsp_DelayTap_generate(ptr noundef %0) #2 {
  %2 = alloca ptr, align 8
  %3 = alloca ptr, align 8
  %4 = alloca i64, align 8
  %5 = alloca float, align 4
  store ptr %0, ptr %2, align 8, !tbaa !5
  call void @llvm.lifetime.start.p0(i64 8, ptr %3) #3
  %6 = load ptr, ptr %2, align 8, !tbaa !5
  store ptr %6, ptr %3, align 8, !tbaa !5
  call void @llvm.lifetime.start.p0(i64 8, ptr %4) #3
  store i64 0, ptr %4, align 8, !tbaa !9
  br label %7

7:                                                ; preds = %28, %1
  %8 = load i64, ptr %4, align 8, !tbaa !9
  %9 = load ptr, ptr %3, align 8, !tbaa !5
  %10 = getelementptr inbounds %struct.sig_dsp_Delay, ptr %9, i32 0, i32 0
  %11 = getelementptr inbounds %struct.sig_dsp_Signal, ptr %10, i32 0, i32 0
  %12 = load ptr, ptr %11, align 8, !tbaa !11
  %13 = getelementptr inbounds %struct.sig_AudioSettings, ptr %12, i32 0, i32 2
  %14 = load i64, ptr %13, align 8, !tbaa !16
  %15 = icmp ult i64 %8, %14
  br i1 %15, label %17, label %16

16:                                               ; preds = %7
  call void @llvm.lifetime.end.p0(i64 8, ptr %4) #3
  br label %31

17:                                               ; preds = %7
  call void @llvm.lifetime.start.p0(i64 4, ptr %5) #3
  %18 = load ptr, ptr %3, align 8, !tbaa !5
  %19 = getelementptr inbounds %struct.sig_dsp_Delay, ptr %18, i32 0, i32 1
  %20 = getelementptr inbounds %struct.sig_dsp_Delay_Inputs, ptr %19, i32 0, i32 0
  %21 = load ptr, ptr %20, align 8, !tbaa !19
  %22 = load i64, ptr %4, align 8, !tbaa !9
  %23 = getelementptr inbounds float, ptr %21, i64 %22
  %24 = load float, ptr %23, align 4, !tbaa !20
  store float %24, ptr %5, align 4, !tbaa !20
  %25 = load ptr, ptr %3, align 8, !tbaa !5
  %26 = load float, ptr %5, align 4, !tbaa !20
  %27 = load i64, ptr %4, align 8, !tbaa !9
  call void @sig_dsp_Delay_read(ptr noundef %25, float noundef %26, i64 noundef %27)
  call void @llvm.lifetime.end.p0(i64 4, ptr %5) #3
  br label %28

28:                                               ; preds = %17
  %29 = load i64, ptr %4, align 8, !tbaa !9
  %30 = add i64 %29, 1
  store i64 %30, ptr %4, align 8, !tbaa !9
  br label %7, !llvm.loop !21

31:                                               ; preds = %16
  call void @llvm.lifetime.end.p0(i64 8, ptr %3) #3
  ret void
}

attributes #0 = { nocallback nofree nosync nounwind willreturn memory(argmem: readwrite) }
attributes #1 = { inlinehint 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 = { 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 = { 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 = !{!12, !6, i64 0}
!12 = !{!"sig_dsp_Delay", !13, i64 0, !14, i64 16, !15, i64 32, !6, i64 40}
!13 = !{!"sig_dsp_Signal", !6, i64 0, !6, i64 8}
!14 = !{!"sig_dsp_Delay_Inputs", !6, i64 0, !6, i64 8}
!15 = !{!"sig_dsp_Signal_SingleMonoOutput", !6, i64 0}
!16 = !{!17, !10, i64 16}
!17 = !{!"sig_AudioSettings", !18, i64 0, !10, i64 8, !10, i64 16}
!18 = !{!"float", !7, i64 0}
!19 = !{!12, !6, i64 16}
!20 = !{!18, !18, i64 0}
!21 = distinct !{!21, !22}
!22 = !{!"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: inlinehint nounwind uwtable
declare dso_local void @sig_dsp_Delay_read(ptr noundef, float noundef, i64 noundef) local_unnamed_addr #0

; Function Attrs: nounwind uwtable
define dso_local void @sig_dsp_DelayTap_generate(ptr noundef %0) local_unnamed_addr #1 {
  %2 = load ptr, ptr %0, align 8, !tbaa !5
  %3 = getelementptr inbounds i8, ptr %2, i64 16
  %4 = load i64, ptr %3, align 8, !tbaa !13
  %.not = icmp eq i64 %4, 0
  br i1 %.not, label %._crit_edge, label %.lr.ph

.lr.ph:                                           ; preds = %1
  %5 = getelementptr inbounds i8, ptr %0, i64 16
  br label %6

._crit_edge:                                      ; preds = %6, %1
  ret void

6:                                                ; preds = %.lr.ph, %6
  %.08 = phi i64 [ 0, %.lr.ph ], [ %10, %6 ]
  %7 = load ptr, ptr %5, align 8, !tbaa !17
  %8 = getelementptr inbounds float, ptr %7, i64 %.08
  %9 = load float, ptr %8, align 4, !tbaa !18
  tail call void @sig_dsp_Delay_read(ptr noundef nonnull %0, float noundef %9, i64 noundef %.08)
  %10 = add nuw i64 %.08, 1
  %11 = load ptr, ptr %0, align 8, !tbaa !5
  %12 = getelementptr inbounds i8, ptr %11, i64 16
  %13 = load i64, ptr %12, align 8, !tbaa !13
  %14 = icmp ult i64 %10, %13
  br i1 %14, label %6, label %._crit_edge, !llvm.loop !19
}

attributes #0 = { inlinehint 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 = { 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, !8, i64 0}
!6 = !{!"sig_dsp_Delay", !7, i64 0, !11, i64 16, !12, i64 32, !8, i64 40}
!7 = !{!"sig_dsp_Signal", !8, i64 0, !8, i64 8}
!8 = !{!"any pointer", !9, i64 0}
!9 = !{!"omnipotent char", !10, i64 0}
!10 = !{!"Simple C/C++ TBAA"}
!11 = !{!"sig_dsp_Delay_Inputs", !8, i64 0, !8, i64 8}
!12 = !{!"sig_dsp_Signal_SingleMonoOutput", !8, i64 0}
!13 = !{!14, !16, i64 16}
!14 = !{!"sig_AudioSettings", !15, i64 0, !16, i64 8, !16, i64 16}
!15 = !{!"float", !9, i64 0}
!16 = !{!"long", !9, i64 0}
!17 = !{!6, !8, i64 16}
!18 = !{!15, !15, i64 0}
!19 = distinct !{!19, !20}
!20 = !{!"llvm.loop.mustprogress"}


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