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

; 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.iirfilt_rrrf_s = type { ptr, ptr, ptr, i32, i32, i32, i32, ptr, ptr, ptr, i32, float }

; Function Attrs: nounwind uwtable
define dso_local i32 @iirfilt_rrrf_execute(ptr noundef %0, float noundef %1, ptr noundef %2) #0 {
  %4 = alloca i32, align 4
  %5 = alloca ptr, align 8
  %6 = alloca float, align 4
  %7 = alloca ptr, align 8
  store ptr %0, ptr %5, align 8, !tbaa !5
  store float %1, ptr %6, align 4, !tbaa !9
  store ptr %2, ptr %7, align 8, !tbaa !5
  %8 = load ptr, ptr %5, align 8, !tbaa !5
  %9 = getelementptr inbounds %struct.iirfilt_rrrf_s, ptr %8, i32 0, i32 6
  %10 = load i32, ptr %9, align 4, !tbaa !11
  %11 = icmp eq i32 %10, 0
  br i1 %11, label %12, label %17

12:                                               ; preds = %3
  %13 = load ptr, ptr %5, align 8, !tbaa !5
  %14 = load float, ptr %6, align 4, !tbaa !9
  %15 = load ptr, ptr %7, align 8, !tbaa !5
  %16 = call i32 @iirfilt_rrrf_execute_norm(ptr noundef %13, float noundef %14, ptr noundef %15)
  store i32 %16, ptr %4, align 4
  br label %22

17:                                               ; preds = %3
  %18 = load ptr, ptr %5, align 8, !tbaa !5
  %19 = load float, ptr %6, align 4, !tbaa !9
  %20 = load ptr, ptr %7, align 8, !tbaa !5
  %21 = call i32 @iirfilt_rrrf_execute_sos(ptr noundef %18, float noundef %19, ptr noundef %20)
  store i32 %21, ptr %4, align 4
  br label %22

22:                                               ; preds = %17, %12
  %23 = load i32, ptr %4, align 4
  ret i32 %23
}

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

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

attributes #0 = { 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 = !{!"any pointer", !7, i64 0}
!7 = !{!"omnipotent char", !8, i64 0}
!8 = !{!"Simple C/C++ TBAA"}
!9 = !{!10, !10, i64 0}
!10 = !{!"float", !7, i64 0}
!11 = !{!12, !13, i64 36}
!12 = !{!"iirfilt_rrrf_s", !6, i64 0, !6, i64 8, !6, i64 16, !13, i64 24, !13, i64 28, !13, i64 32, !13, i64 36, !6, i64 40, !6, i64 48, !6, i64 56, !13, i64 64, !10, i64 68}
!13 = !{!"int", !7, i64 0}


; 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 i32 @iirfilt_rrrf_execute(ptr noundef %0, float noundef %1, ptr noundef %2) local_unnamed_addr #0 {
  %4 = getelementptr inbounds i8, ptr %0, i64 36
  %5 = load i32, ptr %4, align 4, !tbaa !5
  %6 = icmp eq i32 %5, 0
  br i1 %6, label %7, label %9

7:                                                ; preds = %3
  %8 = tail call i32 @iirfilt_rrrf_execute_norm(ptr noundef nonnull %0, float noundef %1, ptr noundef %2)
  br label %11

9:                                                ; preds = %3
  %10 = tail call i32 @iirfilt_rrrf_execute_sos(ptr noundef nonnull %0, float noundef %1, ptr noundef %2)
  br label %11

11:                                               ; preds = %9, %7
  %.0 = phi i32 [ %8, %7 ], [ %10, %9 ]
  ret i32 %.0
}

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

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

attributes #0 = { 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, !10, i64 36}
!6 = !{!"iirfilt_rrrf_s", !7, i64 0, !7, i64 8, !7, i64 16, !10, i64 24, !10, i64 28, !10, i64 32, !10, i64 36, !7, i64 40, !7, i64 48, !7, i64 56, !10, i64 64, !11, i64 68}
!7 = !{!"any pointer", !8, i64 0}
!8 = !{!"omnipotent char", !9, i64 0}
!9 = !{!"Simple C/C++ TBAA"}
!10 = !{!"int", !8, i64 0}
!11 = !{!"float", !8, i64 0}


; Effective O3 passes: CorrelatedValuePropagationPass,GlobalOptPass,InstCombinePass,SROAPass,TailCallElimPass