; LLVM IR from jgaeddert/liquid-dsp :: src/modem/src (modemcf)

; 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.cpfskdem_s = type { i32, i32, i32, float, float, i32, i32, i32, i32, ptr, %union.anon.7, i32, i32, { float, float } }
%union.anon.7 = type { %struct.anon.9 }
%struct.anon.9 = type { ptr }

@.str.49 = external hidden unnamed_addr constant [85 x i8], align 1
@.str.57 = external hidden unnamed_addr constant [39 x i8], align 1
@.str.58 = external hidden unnamed_addr constant [45 x i8], align 1

declare ptr @liquid_error_config_fl(ptr noundef, i32 noundef, ptr noundef, ...) #0

; Function Attrs: nocallback nofree nosync nounwind willreturn memory(argmem: readwrite)
declare void @llvm.lifetime.start.p0(i64 immarg, ptr nocapture) #1

; Function Attrs: nocallback nofree nounwind willreturn memory(argmem: readwrite)
declare void @llvm.memmove.p0.p0.i64(ptr nocapture writeonly, ptr nocapture readonly, i64, i1 immarg) #2

; Function Attrs: nocallback nofree nosync nounwind willreturn memory(argmem: readwrite)
declare void @llvm.lifetime.end.p0(i64 immarg, ptr nocapture) #1

declare i32 @liquid_error_fl(i32 noundef, ptr noundef, i32 noundef, ptr noundef, ...) #0

; Function Attrs: nounwind allocsize(0)
declare noalias ptr @malloc(i64 noundef) #3

; Function Attrs: nounwind uwtable
define dso_local ptr @cpfskdem_copy(ptr noundef %0) #4 {
  %2 = alloca ptr, align 8
  %3 = alloca ptr, align 8
  %4 = alloca ptr, align 8
  %5 = alloca i32, align 4
  store ptr %0, ptr %3, align 8, !tbaa !5
  %6 = load ptr, ptr %3, align 8, !tbaa !5
  %7 = icmp eq ptr %6, null
  br i1 %7, label %8, label %10

8:                                                ; preds = %1
  %9 = call ptr (ptr, i32, ptr, ...) @liquid_error_config_fl(ptr noundef @.str.49, i32 noundef 167, ptr noundef @.str.57)
  store ptr %9, ptr %2, align 8
  br label %32

10:                                               ; preds = %1
  call void @llvm.lifetime.start.p0(i64 8, ptr %4) #5
  %11 = call noalias ptr @malloc(i64 noundef 72) #6
  store ptr %11, ptr %4, align 8, !tbaa !5
  %12 = load ptr, ptr %4, align 8, !tbaa !5
  %13 = load ptr, ptr %3, align 8, !tbaa !5
  call void @llvm.memmove.p0.p0.i64(ptr align 8 %12, ptr align 8 %13, i64 72, i1 false)
  %14 = load ptr, ptr %3, align 8, !tbaa !5
  %15 = getelementptr inbounds %struct.cpfskdem_s, ptr %14, i32 0, i32 8
  %16 = load i32, ptr %15, align 8, !tbaa !9
  %17 = icmp eq i32 %16, 0
  br i1 %17, label %18, label %20

18:                                               ; preds = %10
  %19 = call i32 (i32, ptr, i32, ptr, ...) @liquid_error_fl(i32 noundef 1, ptr noundef @.str.49, i32 noundef 176, ptr noundef @.str.58)
  store ptr null, ptr %2, align 8
  store i32 1, ptr %5, align 4
  br label %31

20:                                               ; preds = %10
  %21 = load ptr, ptr %3, align 8, !tbaa !5
  %22 = getelementptr inbounds %struct.cpfskdem_s, ptr %21, i32 0, i32 10
  %23 = getelementptr inbounds %struct.anon.9, ptr %22, i32 0, i32 0
  %24 = load ptr, ptr %23, align 8, !tbaa !13
  %25 = call ptr @firfilt_crcf_copy(ptr noundef %24)
  %26 = load ptr, ptr %4, align 8, !tbaa !5
  %27 = getelementptr inbounds %struct.cpfskdem_s, ptr %26, i32 0, i32 10
  %28 = getelementptr inbounds %struct.anon.9, ptr %27, i32 0, i32 0
  store ptr %25, ptr %28, align 8, !tbaa !13
  br label %29

29:                                               ; preds = %20
  %30 = load ptr, ptr %4, align 8, !tbaa !5
  store ptr %30, ptr %2, align 8
  store i32 1, ptr %5, align 4
  br label %31

31:                                               ; preds = %29, %18
  call void @llvm.lifetime.end.p0(i64 8, ptr %4) #5
  br label %32

32:                                               ; preds = %31, %8
  %33 = load ptr, ptr %2, align 8
  ret ptr %33
}

declare ptr @firfilt_crcf_copy(ptr noundef) #0

attributes #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 = { nocallback nofree nosync nounwind willreturn memory(argmem: readwrite) }
attributes #2 = { nocallback nofree nounwind willreturn memory(argmem: readwrite) }
attributes #3 = { nounwind allocsize(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 #4 = { 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 #5 = { nounwind }
attributes #6 = { nounwind allocsize(0) }

!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, !11, i64 32}
!10 = !{!"cpfskdem_s", !11, i64 0, !11, i64 4, !11, i64 8, !12, i64 12, !12, i64 16, !11, i64 20, !11, i64 24, !11, i64 28, !11, i64 32, !6, i64 40, !7, i64 48, !11, i64 56, !11, i64 60, !7, i64 64}
!11 = !{!"int", !7, i64 0}
!12 = !{!"float", !7, i64 0}
!13 = !{!7, !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"

@.str.49 = external hidden unnamed_addr constant [85 x i8], align 1
@.str.57 = external hidden unnamed_addr constant [39 x i8], align 1
@.str.58 = external hidden unnamed_addr constant [45 x i8], align 1

declare ptr @liquid_error_config_fl(ptr noundef, i32 noundef, ptr noundef, ...) local_unnamed_addr #0

declare i32 @liquid_error_fl(i32 noundef, ptr noundef, i32 noundef, ptr noundef, ...) local_unnamed_addr #0

; Function Attrs: mustprogress nofree nounwind willreturn allockind("alloc,uninitialized") allocsize(0) memory(inaccessiblemem: readwrite)
declare noalias noundef ptr @malloc(i64 noundef) local_unnamed_addr #1

; Function Attrs: nounwind uwtable
define dso_local ptr @cpfskdem_copy(ptr noundef readonly %0) local_unnamed_addr #2 {
  %2 = icmp eq ptr %0, null
  br i1 %2, label %3, label %5

3:                                                ; preds = %1
  %4 = tail call ptr (ptr, i32, ptr, ...) @liquid_error_config_fl(ptr noundef nonnull @.str.49, i32 noundef 167, ptr noundef nonnull @.str.57) #4
  br label %17

5:                                                ; preds = %1
  %6 = tail call noalias dereferenceable_or_null(72) ptr @malloc(i64 noundef 72) #5
  tail call void @llvm.memcpy.p0.p0.i64(ptr noundef nonnull align 8 dereferenceable(72) %6, ptr noundef nonnull align 8 dereferenceable(72) %0, i64 72, i1 false)
  %7 = getelementptr inbounds i8, ptr %0, i64 32
  %8 = load i32, ptr %7, align 8, !tbaa !5
  %9 = icmp eq i32 %8, 0
  br i1 %9, label %10, label %12

10:                                               ; preds = %5
  %11 = tail call i32 (i32, ptr, i32, ptr, ...) @liquid_error_fl(i32 noundef 1, ptr noundef nonnull @.str.49, i32 noundef 176, ptr noundef nonnull @.str.58) #4
  br label %17

12:                                               ; preds = %5
  %13 = getelementptr inbounds i8, ptr %0, i64 48
  %14 = load ptr, ptr %13, align 8, !tbaa !12
  %15 = tail call ptr @firfilt_crcf_copy(ptr noundef %14) #4
  %16 = getelementptr inbounds i8, ptr %6, i64 48
  store ptr %15, ptr %16, align 8, !tbaa !12
  br label %17

17:                                               ; preds = %10, %12, %3
  %.1 = phi ptr [ %4, %3 ], [ null, %10 ], [ %6, %12 ]
  ret ptr %.1
}

declare ptr @firfilt_crcf_copy(ptr noundef) local_unnamed_addr #0

; Function Attrs: nocallback nofree nounwind willreturn memory(argmem: readwrite)
declare void @llvm.memcpy.p0.p0.i64(ptr noalias nocapture writeonly, ptr noalias nocapture readonly, i64, i1 immarg) #3

attributes #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 = { mustprogress nofree nounwind willreturn allockind("alloc,uninitialized") allocsize(0) memory(inaccessiblemem: readwrite) "alloc-family"="malloc" "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 = { nocallback nofree nounwind willreturn memory(argmem: readwrite) }
attributes #4 = { nounwind }
attributes #5 = { nounwind allocsize(0) }

!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 32}
!6 = !{!"cpfskdem_s", !7, i64 0, !7, i64 4, !7, i64 8, !10, i64 12, !10, i64 16, !7, i64 20, !7, i64 24, !7, i64 28, !7, i64 32, !11, i64 40, !8, i64 48, !7, i64 56, !7, i64 60, !8, i64 64}
!7 = !{!"int", !8, i64 0}
!8 = !{!"omnipotent char", !9, i64 0}
!9 = !{!"Simple C/C++ TBAA"}
!10 = !{!"float", !8, i64 0}
!11 = !{!"any pointer", !8, i64 0}
!12 = !{!8, !8, i64 0}


; Effective O3 passes: EarlyCSEPass,GlobalOptPass,InferFunctionAttrsPass,InstCombinePass,MemCpyOptPass,PostOrderFunctionAttrsPass,SROAPass,SimplifyCFGPass,TailCallElimPass