; LLVM IR from jgaeddert/liquid-dsp :: src/filter/src (filter_cccf)

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

; 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: nounwind uwtable
define dso_local i32 @firinterp_cccf_execute(ptr noundef %0, <2 x float> noundef %1, ptr noundef %2) #1 {
  %4 = alloca { float, float }, align 4
  %5 = alloca ptr, align 8
  %6 = alloca ptr, align 8
  %7 = alloca { float, float }, align 4
  %8 = alloca i32, align 4
  store <2 x float> %1, ptr %4, align 4
  store ptr %0, ptr %5, align 8, !tbaa !5
  store ptr %2, ptr %6, align 8, !tbaa !5
  %9 = load ptr, ptr %5, align 8, !tbaa !5
  %10 = getelementptr inbounds %struct.firinterp_cccf_s, ptr %9, i32 0, i32 4
  %11 = load ptr, ptr %10, align 8, !tbaa !9
  %12 = getelementptr inbounds { float, float }, ptr %4, i32 0, i32 0
  %13 = load float, ptr %12, align 4
  %14 = getelementptr inbounds { float, float }, ptr %4, i32 0, i32 1
  %15 = load float, ptr %14, align 4
  %16 = getelementptr inbounds { float, float }, ptr %7, i32 0, i32 0
  %17 = getelementptr inbounds { float, float }, ptr %7, i32 0, i32 1
  store float %13, ptr %16, align 4
  store float %15, ptr %17, align 4
  %18 = load <2 x float>, ptr %7, align 4
  %19 = call i32 @firpfb_cccf_push(ptr noundef %11, <2 x float> noundef %18)
  call void @llvm.lifetime.start.p0(i64 4, ptr %8) #2
  store i32 0, ptr %8, align 4, !tbaa !12
  br label %20

20:                                               ; preds = %36, %3
  %21 = load i32, ptr %8, align 4, !tbaa !12
  %22 = load ptr, ptr %5, align 8, !tbaa !5
  %23 = getelementptr inbounds %struct.firinterp_cccf_s, ptr %22, i32 0, i32 3
  %24 = load i32, ptr %23, align 8, !tbaa !13
  %25 = icmp ult i32 %21, %24
  br i1 %25, label %26, label %39

26:                                               ; preds = %20
  %27 = load ptr, ptr %5, align 8, !tbaa !5
  %28 = getelementptr inbounds %struct.firinterp_cccf_s, ptr %27, i32 0, i32 4
  %29 = load ptr, ptr %28, align 8, !tbaa !9
  %30 = load i32, ptr %8, align 4, !tbaa !12
  %31 = load ptr, ptr %6, align 8, !tbaa !5
  %32 = load i32, ptr %8, align 4, !tbaa !12
  %33 = zext i32 %32 to i64
  %34 = getelementptr inbounds { float, float }, ptr %31, i64 %33
  %35 = call i32 @firpfb_cccf_execute(ptr noundef %29, i32 noundef %30, ptr noundef %34)
  br label %36

36:                                               ; preds = %26
  %37 = load i32, ptr %8, align 4, !tbaa !12
  %38 = add i32 %37, 1
  store i32 %38, ptr %8, align 4, !tbaa !12
  br label %20, !llvm.loop !14

39:                                               ; preds = %20
  call void @llvm.lifetime.end.p0(i64 4, ptr %8) #2
  ret i32 0
}

; Function Attrs: nounwind uwtable
declare dso_local i32 @firpfb_cccf_push(ptr noundef, <2 x float> noundef) #1

; Function Attrs: nounwind uwtable
declare dso_local i32 @firpfb_cccf_execute(ptr noundef, i32 noundef, ptr noundef) #1

attributes #0 = { nocallback nofree nosync nounwind willreturn memory(argmem: readwrite) }
attributes #1 = { nounwind uwtable "min-legal-vector-width"="64" "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 }

!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, !6, i64 24}
!10 = !{!"firinterp_cccf_s", !6, i64 0, !11, i64 8, !11, i64 12, !11, i64 16, !6, i64 24}
!11 = !{!"int", !7, i64 0}
!12 = !{!11, !11, i64 0}
!13 = !{!10, !11, i64 16}
!14 = distinct !{!14, !15}
!15 = !{!"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: nounwind uwtable
define dso_local noundef i32 @firinterp_cccf_execute(ptr nocapture noundef readonly %0, <2 x float> noundef %1, ptr noundef %2) local_unnamed_addr #0 {
  %4 = getelementptr inbounds i8, ptr %0, i64 24
  %5 = load ptr, ptr %4, align 8, !tbaa !5
  %6 = tail call i32 @firpfb_cccf_push(ptr noundef %5, <2 x float> noundef %1)
  %7 = getelementptr inbounds i8, ptr %0, i64 16
  %8 = load i32, ptr %7, align 8, !tbaa !11
  %.not = icmp eq i32 %8, 0
  br i1 %.not, label %._crit_edge, label %.lr.ph

.lr.ph:                                           ; preds = %3, %.lr.ph
  %indvars.iv = phi i64 [ %indvars.iv.next, %.lr.ph ], [ 0, %3 ]
  %9 = load ptr, ptr %4, align 8, !tbaa !5
  %10 = getelementptr inbounds { float, float }, ptr %2, i64 %indvars.iv
  %11 = trunc nuw i64 %indvars.iv to i32
  %12 = tail call i32 @firpfb_cccf_execute(ptr noundef %9, i32 noundef %11, ptr noundef %10)
  %indvars.iv.next = add nuw nsw i64 %indvars.iv, 1
  %13 = load i32, ptr %7, align 8, !tbaa !11
  %14 = zext i32 %13 to i64
  %15 = icmp ult i64 %indvars.iv.next, %14
  br i1 %15, label %.lr.ph, label %._crit_edge, !llvm.loop !12

._crit_edge:                                      ; preds = %.lr.ph, %3
  ret i32 0
}

; Function Attrs: nounwind uwtable
declare dso_local i32 @firpfb_cccf_push(ptr noundef, <2 x float> noundef) local_unnamed_addr #0

; Function Attrs: nounwind uwtable
declare dso_local i32 @firpfb_cccf_execute(ptr noundef, i32 noundef, ptr noundef) local_unnamed_addr #0

attributes #0 = { nounwind uwtable "min-legal-vector-width"="64" "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, !7, i64 24}
!6 = !{!"firinterp_cccf_s", !7, i64 0, !10, i64 8, !10, i64 12, !10, i64 16, !7, i64 24}
!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 = distinct !{!12, !13}
!13 = !{!"llvm.loop.mustprogress"}


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