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

; 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 @windowcf_read(ptr noundef, ptr noundef) #1

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

; Function Attrs: nounwind uwtable
define dso_local i32 @firfilt_crcf_execute(ptr noundef %0, ptr noundef %1) #2 {
  %3 = alloca ptr, align 8
  %4 = alloca ptr, align 8
  %5 = alloca ptr, align 8
  store ptr %0, ptr %3, align 8, !tbaa !5
  store ptr %1, ptr %4, align 8, !tbaa !5
  call void @llvm.lifetime.start.p0(i64 8, ptr %5) #3
  %6 = load ptr, ptr %3, align 8, !tbaa !5
  %7 = getelementptr inbounds %struct.firfilt_crcf_s, ptr %6, i32 0, i32 2
  %8 = load ptr, ptr %7, align 8, !tbaa !9
  %9 = call i32 @windowcf_read(ptr noundef %8, ptr noundef %5)
  %10 = load ptr, ptr %3, align 8, !tbaa !5
  %11 = getelementptr inbounds %struct.firfilt_crcf_s, ptr %10, i32 0, i32 3
  %12 = load ptr, ptr %11, align 8, !tbaa !13
  %13 = load ptr, ptr %5, align 8, !tbaa !5
  %14 = load ptr, ptr %4, align 8, !tbaa !5
  %15 = call i32 @dotprod_crcf_execute(ptr noundef %12, ptr noundef %13, ptr noundef %14)
  %16 = load ptr, ptr %3, align 8, !tbaa !5
  %17 = getelementptr inbounds %struct.firfilt_crcf_s, ptr %16, i32 0, i32 4
  %18 = load float, ptr %17, align 8, !tbaa !14
  %19 = load ptr, ptr %4, align 8, !tbaa !5
  %20 = getelementptr inbounds { float, float }, ptr %19, i32 0, i32 0
  %21 = load float, ptr %20, align 4
  %22 = getelementptr inbounds { float, float }, ptr %19, i32 0, i32 1
  %23 = load float, ptr %22, align 4
  %24 = fmul float %21, %18
  %25 = fmul float %23, %18
  %26 = getelementptr inbounds { float, float }, ptr %19, i32 0, i32 0
  %27 = getelementptr inbounds { float, float }, ptr %19, i32 0, i32 1
  store float %24, ptr %26, align 4
  store float %25, ptr %27, align 4
  call void @llvm.lifetime.end.p0(i64 8, ptr %5) #3
  ret i32 0
}

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, !6, i64 16}
!10 = !{!"firfilt_crcf_s", !6, i64 0, !11, i64 8, !6, i64 16, !6, i64 24, !12, i64 32}
!11 = !{!"int", !7, i64 0}
!12 = !{!"float", !7, i64 0}
!13 = !{!10, !6, i64 24}
!14 = !{!10, !12, 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"

; 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 @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

; Function Attrs: nounwind uwtable
define dso_local noundef i32 @firfilt_crcf_execute(ptr nocapture noundef readonly %0, ptr noundef %1) local_unnamed_addr #2 {
  %3 = alloca ptr, align 8
  call void @llvm.lifetime.start.p0(i64 8, ptr nonnull %3) #3
  %4 = getelementptr inbounds i8, ptr %0, i64 16
  %5 = load ptr, ptr %4, align 8, !tbaa !5
  %6 = call i32 @windowcf_read(ptr noundef %5, ptr noundef nonnull %3) #3
  %7 = getelementptr inbounds i8, ptr %0, i64 24
  %8 = load ptr, ptr %7, align 8, !tbaa !12
  %9 = load ptr, ptr %3, align 8, !tbaa !13
  %10 = call i32 @dotprod_crcf_execute(ptr noundef %8, ptr noundef %9, ptr noundef %1) #3
  %11 = getelementptr inbounds i8, ptr %0, i64 32
  %12 = load float, ptr %11, align 8, !tbaa !14
  %13 = load <2 x float>, ptr %1, align 4
  %14 = insertelement <2 x float> poison, float %12, i64 0
  %15 = shufflevector <2 x float> %14, <2 x float> poison, <2 x i32> zeroinitializer
  %16 = fmul <2 x float> %15, %13
  store <2 x float> %16, ptr %1, align 4
  call void @llvm.lifetime.end.p0(i64 8, ptr nonnull %3) #3
  ret i32 0
}

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 16}
!6 = !{!"firfilt_crcf_s", !7, i64 0, !10, i64 8, !7, i64 16, !7, i64 24, !11, i64 32}
!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}
!12 = !{!6, !7, i64 24}
!13 = !{!7, !7, i64 0}
!14 = !{!6, !11, i64 32}


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