; 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_LinearXFade = type { %struct.sig_dsp_Signal, %struct.sig_dsp_LinearXFade_Inputs, %struct.sig_dsp_Signal_SingleMonoOutput }
%struct.sig_dsp_Signal = type { ptr, ptr }
%struct.sig_dsp_LinearXFade_Inputs = type { ptr, 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 float @sig_linearXFade(float noundef, float noundef, float noundef) #1

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

9:                                                ; preds = %51, %1
  %10 = load i64, ptr %4, align 8, !tbaa !9
  %11 = load ptr, ptr %3, align 8, !tbaa !5
  %12 = getelementptr inbounds %struct.sig_dsp_LinearXFade, ptr %11, i32 0, i32 0
  %13 = getelementptr inbounds %struct.sig_dsp_Signal, ptr %12, i32 0, i32 0
  %14 = load ptr, ptr %13, align 8, !tbaa !11
  %15 = getelementptr inbounds %struct.sig_AudioSettings, ptr %14, i32 0, i32 2
  %16 = load i64, ptr %15, align 8, !tbaa !16
  %17 = icmp ult i64 %10, %16
  br i1 %17, label %19, label %18

18:                                               ; preds = %9
  call void @llvm.lifetime.end.p0(i64 8, ptr %4) #3
  br label %54

19:                                               ; preds = %9
  call void @llvm.lifetime.start.p0(i64 4, ptr %5) #3
  %20 = load ptr, ptr %3, align 8, !tbaa !5
  %21 = getelementptr inbounds %struct.sig_dsp_LinearXFade, ptr %20, i32 0, i32 1
  %22 = getelementptr inbounds %struct.sig_dsp_LinearXFade_Inputs, ptr %21, i32 0, i32 0
  %23 = load ptr, ptr %22, align 8, !tbaa !19
  %24 = load i64, ptr %4, align 8, !tbaa !9
  %25 = getelementptr inbounds float, ptr %23, i64 %24
  %26 = load float, ptr %25, align 4, !tbaa !20
  store float %26, ptr %5, align 4, !tbaa !20
  call void @llvm.lifetime.start.p0(i64 4, ptr %6) #3
  %27 = load ptr, ptr %3, align 8, !tbaa !5
  %28 = getelementptr inbounds %struct.sig_dsp_LinearXFade, ptr %27, i32 0, i32 1
  %29 = getelementptr inbounds %struct.sig_dsp_LinearXFade_Inputs, ptr %28, i32 0, i32 1
  %30 = load ptr, ptr %29, align 8, !tbaa !21
  %31 = load i64, ptr %4, align 8, !tbaa !9
  %32 = getelementptr inbounds float, ptr %30, i64 %31
  %33 = load float, ptr %32, align 4, !tbaa !20
  store float %33, ptr %6, align 4, !tbaa !20
  call void @llvm.lifetime.start.p0(i64 4, ptr %7) #3
  %34 = load ptr, ptr %3, align 8, !tbaa !5
  %35 = getelementptr inbounds %struct.sig_dsp_LinearXFade, ptr %34, i32 0, i32 1
  %36 = getelementptr inbounds %struct.sig_dsp_LinearXFade_Inputs, ptr %35, i32 0, i32 2
  %37 = load ptr, ptr %36, align 8, !tbaa !22
  %38 = load i64, ptr %4, align 8, !tbaa !9
  %39 = getelementptr inbounds float, ptr %37, i64 %38
  %40 = load float, ptr %39, align 4, !tbaa !20
  store float %40, ptr %7, align 4, !tbaa !20
  %41 = load float, ptr %5, align 4, !tbaa !20
  %42 = load float, ptr %6, align 4, !tbaa !20
  %43 = load float, ptr %7, align 4, !tbaa !20
  %44 = call float @sig_linearXFade(float noundef %41, float noundef %42, float noundef %43)
  %45 = load ptr, ptr %3, align 8, !tbaa !5
  %46 = getelementptr inbounds %struct.sig_dsp_LinearXFade, ptr %45, i32 0, i32 2
  %47 = getelementptr inbounds %struct.sig_dsp_Signal_SingleMonoOutput, ptr %46, i32 0, i32 0
  %48 = load ptr, ptr %47, align 8, !tbaa !23
  %49 = load i64, ptr %4, align 8, !tbaa !9
  %50 = getelementptr inbounds float, ptr %48, i64 %49
  store float %44, ptr %50, align 4, !tbaa !20
  call void @llvm.lifetime.end.p0(i64 4, ptr %7) #3
  call void @llvm.lifetime.end.p0(i64 4, ptr %6) #3
  call void @llvm.lifetime.end.p0(i64 4, ptr %5) #3
  br label %51

51:                                               ; preds = %19
  %52 = load i64, ptr %4, align 8, !tbaa !9
  %53 = add i64 %52, 1
  store i64 %53, ptr %4, align 8, !tbaa !9
  br label %9, !llvm.loop !24

54:                                               ; preds = %18
  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_LinearXFade", !13, i64 0, !14, i64 16, !15, i64 40}
!13 = !{!"sig_dsp_Signal", !6, i64 0, !6, i64 8}
!14 = !{!"sig_dsp_LinearXFade_Inputs", !6, i64 0, !6, i64 8, !6, i64 16}
!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 = !{!12, !6, i64 24}
!22 = !{!12, !6, i64 32}
!23 = !{!12, !6, i64 40}
!24 = distinct !{!24, !25}
!25 = !{!"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 float @sig_linearXFade(float noundef, float noundef, float noundef) local_unnamed_addr #0

; Function Attrs: nounwind uwtable
define dso_local void @sig_dsp_LinearXFade_generate(ptr nocapture noundef readonly %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
  %6 = getelementptr inbounds i8, ptr %0, i64 24
  %7 = getelementptr inbounds i8, ptr %0, i64 32
  %8 = getelementptr inbounds i8, ptr %0, i64 40
  br label %9

._crit_edge:                                      ; preds = %9, %1
  ret void

9:                                                ; preds = %.lr.ph, %9
  %.014 = phi i64 [ 0, %.lr.ph ], [ %22, %9 ]
  %10 = load ptr, ptr %5, align 8, !tbaa !17
  %11 = getelementptr inbounds float, ptr %10, i64 %.014
  %12 = load float, ptr %11, align 4, !tbaa !18
  %13 = load ptr, ptr %6, align 8, !tbaa !19
  %14 = getelementptr inbounds float, ptr %13, i64 %.014
  %15 = load float, ptr %14, align 4, !tbaa !18
  %16 = load ptr, ptr %7, align 8, !tbaa !20
  %17 = getelementptr inbounds float, ptr %16, i64 %.014
  %18 = load float, ptr %17, align 4, !tbaa !18
  %19 = tail call float @sig_linearXFade(float noundef %12, float noundef %15, float noundef %18)
  %20 = load ptr, ptr %8, align 8, !tbaa !21
  %21 = getelementptr inbounds float, ptr %20, i64 %.014
  store float %19, ptr %21, align 4, !tbaa !18
  %22 = add nuw i64 %.014, 1
  %23 = load ptr, ptr %0, align 8, !tbaa !5
  %24 = getelementptr inbounds i8, ptr %23, i64 16
  %25 = load i64, ptr %24, align 8, !tbaa !13
  %26 = icmp ult i64 %22, %25
  br i1 %26, label %9, label %._crit_edge, !llvm.loop !22
}

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_LinearXFade", !7, i64 0, !11, i64 16, !12, 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_LinearXFade_Inputs", !8, i64 0, !8, i64 8, !8, i64 16}
!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 = !{!6, !8, i64 24}
!20 = !{!6, !8, i64 32}
!21 = !{!6, !8, i64 40}
!22 = distinct !{!22, !23}
!23 = !{!"llvm.loop.mustprogress"}


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