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

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

@.str.64 = external hidden unnamed_addr constant [84 x i8], align 1
@.str.81 = external hidden unnamed_addr constant [61 x i8], align 1

; 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

declare i32 @liquid_error_fl(i32 noundef, ptr noundef, i32 noundef, ptr noundef, ...) #1

; Function Attrs: nounwind uwtable
define dso_local i32 @firpfb_crcf_execute(ptr noundef %0, i32 noundef %1, ptr noundef %2) #2 {
  %4 = alloca i32, align 4
  %5 = alloca ptr, align 8
  %6 = alloca i32, align 4
  %7 = alloca ptr, align 8
  %8 = alloca ptr, align 8
  store ptr %0, ptr %5, align 8, !tbaa !5
  store i32 %1, ptr %6, align 4, !tbaa !9
  store ptr %2, ptr %7, align 8, !tbaa !5
  %9 = load i32, ptr %6, align 4, !tbaa !9
  %10 = load ptr, ptr %5, align 8, !tbaa !5
  %11 = getelementptr inbounds %struct.firpfb_crcf_s, ptr %10, i32 0, i32 2
  %12 = load i32, ptr %11, align 8, !tbaa !11
  %13 = icmp uge i32 %9, %12
  br i1 %13, label %14, label %20

14:                                               ; preds = %3
  %15 = load i32, ptr %6, align 4, !tbaa !9
  %16 = load ptr, ptr %5, align 8, !tbaa !5
  %17 = getelementptr inbounds %struct.firpfb_crcf_s, ptr %16, i32 0, i32 2
  %18 = load i32, ptr %17, align 8, !tbaa !11
  %19 = call i32 (i32, ptr, i32, ptr, ...) @liquid_error_fl(i32 noundef 3, ptr noundef @.str.64, i32 noundef 355, ptr noundef @.str.81, i32 noundef %15, i32 noundef %18)
  store i32 %19, ptr %4, align 4
  br label %47

20:                                               ; preds = %3
  call void @llvm.lifetime.start.p0(i64 8, ptr %8) #3
  %21 = load ptr, ptr %5, align 8, !tbaa !5
  %22 = getelementptr inbounds %struct.firpfb_crcf_s, ptr %21, i32 0, i32 3
  %23 = load ptr, ptr %22, align 8, !tbaa !14
  %24 = call i32 @windowcf_read(ptr noundef %23, ptr noundef %8)
  %25 = load ptr, ptr %5, align 8, !tbaa !5
  %26 = getelementptr inbounds %struct.firpfb_crcf_s, ptr %25, i32 0, i32 4
  %27 = load ptr, ptr %26, align 8, !tbaa !15
  %28 = load i32, ptr %6, align 4, !tbaa !9
  %29 = zext i32 %28 to i64
  %30 = getelementptr inbounds ptr, ptr %27, i64 %29
  %31 = load ptr, ptr %30, align 8, !tbaa !5
  %32 = load ptr, ptr %8, align 8, !tbaa !5
  %33 = load ptr, ptr %7, align 8, !tbaa !5
  %34 = call i32 @dotprod_crcf_execute(ptr noundef %31, ptr noundef %32, ptr noundef %33)
  %35 = load ptr, ptr %5, align 8, !tbaa !5
  %36 = getelementptr inbounds %struct.firpfb_crcf_s, ptr %35, i32 0, i32 5
  %37 = load float, ptr %36, align 8, !tbaa !16
  %38 = load ptr, ptr %7, align 8, !tbaa !5
  %39 = getelementptr inbounds { float, float }, ptr %38, i32 0, i32 0
  %40 = load float, ptr %39, align 4
  %41 = getelementptr inbounds { float, float }, ptr %38, i32 0, i32 1
  %42 = load float, ptr %41, align 4
  %43 = fmul float %40, %37
  %44 = fmul float %42, %37
  %45 = getelementptr inbounds { float, float }, ptr %38, i32 0, i32 0
  %46 = getelementptr inbounds { float, float }, ptr %38, i32 0, i32 1
  store float %43, ptr %45, align 4
  store float %44, ptr %46, align 4
  store i32 0, ptr %4, align 4
  call void @llvm.lifetime.end.p0(i64 8, ptr %8) #3
  br label %47

47:                                               ; preds = %20, %14
  %48 = load i32, ptr %4, align 4
  ret i32 %48
}

declare i32 @windowcf_read(ptr noundef, ptr noundef) #1

declare i32 @dotprod_crcf_execute(ptr noundef, ptr noundef, ptr noundef) #1

attributes #0 = { nocallback nofree nosync nounwind willreturn memory(argmem: readwrite) }
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 = { 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 = !{!"int", !7, i64 0}
!11 = !{!12, !10, i64 8}
!12 = !{!"firpfb_crcf_s", !10, i64 0, !10, i64 4, !10, i64 8, !6, i64 16, !6, i64 24, !13, i64 32}
!13 = !{!"float", !7, i64 0}
!14 = !{!12, !6, i64 16}
!15 = !{!12, !6, i64 24}
!16 = !{!12, !13, i64 32}


; 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"

@.str.64 = external hidden unnamed_addr constant [84 x i8], align 1
@.str.81 = external hidden unnamed_addr constant [61 x i8], align 1

; Function Attrs: mustprogress nocallback nofree nosync nounwind willreturn memory(argmem: readwrite)
declare void @llvm.lifetime.start.p0(i64 immarg, ptr nocapture) #0

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

declare i32 @liquid_error_fl(i32 noundef, ptr noundef, i32 noundef, ptr noundef, ...) local_unnamed_addr #1

; Function Attrs: nounwind uwtable
define dso_local i32 @firpfb_crcf_execute(ptr nocapture noundef readonly %0, i32 noundef %1, ptr noundef %2) local_unnamed_addr #2 {
  %4 = alloca ptr, align 8
  %5 = getelementptr inbounds i8, ptr %0, i64 8
  %6 = load i32, ptr %5, align 8, !tbaa !5
  %.not = icmp ugt i32 %6, %1
  br i1 %.not, label %9, label %7

7:                                                ; preds = %3
  %8 = tail call i32 (i32, ptr, i32, ptr, ...) @liquid_error_fl(i32 noundef 3, ptr noundef nonnull @.str.64, i32 noundef 355, ptr noundef nonnull @.str.81, i32 noundef %1, i32 noundef %6) #3
  br label %26

9:                                                ; preds = %3
  call void @llvm.lifetime.start.p0(i64 8, ptr nonnull %4) #3
  %10 = getelementptr inbounds i8, ptr %0, i64 16
  %11 = load ptr, ptr %10, align 8, !tbaa !12
  %12 = call i32 @windowcf_read(ptr noundef %11, ptr noundef nonnull %4) #3
  %13 = getelementptr inbounds i8, ptr %0, i64 24
  %14 = load ptr, ptr %13, align 8, !tbaa !13
  %15 = zext i32 %1 to i64
  %16 = getelementptr inbounds ptr, ptr %14, i64 %15
  %17 = load ptr, ptr %16, align 8, !tbaa !14
  %18 = load ptr, ptr %4, align 8, !tbaa !14
  %19 = call i32 @dotprod_crcf_execute(ptr noundef %17, ptr noundef %18, ptr noundef %2) #3
  %20 = getelementptr inbounds i8, ptr %0, i64 32
  %21 = load float, ptr %20, align 8, !tbaa !15
  %22 = load <2 x float>, ptr %2, align 4
  %23 = insertelement <2 x float> poison, float %21, i64 0
  %24 = shufflevector <2 x float> %23, <2 x float> poison, <2 x i32> zeroinitializer
  %25 = fmul <2 x float> %24, %22
  store <2 x float> %25, ptr %2, align 4
  call void @llvm.lifetime.end.p0(i64 8, ptr nonnull %4) #3
  br label %26

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

declare i32 @windowcf_read(ptr noundef, ptr noundef) local_unnamed_addr #1

declare i32 @dotprod_crcf_execute(ptr noundef, ptr noundef, ptr noundef) local_unnamed_addr #1

attributes #0 = { mustprogress nocallback nofree nosync nounwind willreturn memory(argmem: readwrite) }
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 = { 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, !7, i64 8}
!6 = !{!"firpfb_crcf_s", !7, i64 0, !7, i64 4, !7, i64 8, !10, i64 16, !10, i64 24, !11, i64 32}
!7 = !{!"int", !8, i64 0}
!8 = !{!"omnipotent char", !9, i64 0}
!9 = !{!"Simple C/C++ TBAA"}
!10 = !{!"any pointer", !8, i64 0}
!11 = !{!"float", !8, i64 0}
!12 = !{!6, !10, i64 16}
!13 = !{!6, !10, i64 24}
!14 = !{!10, !10, i64 0}
!15 = !{!6, !11, i64 32}


; Effective O3 passes: EarlyCSEPass,GlobalOptPass,InferFunctionAttrsPass,InstCombinePass,PostOrderFunctionAttrsPass,ReassociatePass,SLPVectorizerPass,SROAPass,TailCallElimPass