; 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.61 = external hidden unnamed_addr constant [48 x i8], align 1

; Function Attrs: nounwind
declare void @free(ptr noundef) #0

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

; Function Attrs: nounwind uwtable
define dso_local i32 @cpfskdem_destroy(ptr noundef %0) #2 {
  %2 = alloca i32, align 4
  %3 = alloca ptr, align 8
  store ptr %0, ptr %3, align 8, !tbaa !5
  %4 = load ptr, ptr %3, align 8, !tbaa !5
  %5 = getelementptr inbounds %struct.cpfskdem_s, ptr %4, i32 0, i32 8
  %6 = load i32, ptr %5, align 8, !tbaa !9
  switch i32 %6, label %15 [
    i32 0, label %7
    i32 1, label %9
  ]

7:                                                ; preds = %1
  %8 = call i32 (i32, ptr, i32, ptr, ...) @liquid_error_fl(i32 noundef 1, ptr noundef @.str.49, i32 noundef 278, ptr noundef @.str.61)
  store i32 %8, ptr %2, align 4
  br label %17

9:                                                ; preds = %1
  %10 = load ptr, ptr %3, align 8, !tbaa !5
  %11 = getelementptr inbounds %struct.cpfskdem_s, ptr %10, i32 0, i32 10
  %12 = getelementptr inbounds %struct.anon.9, ptr %11, i32 0, i32 0
  %13 = load ptr, ptr %12, align 8, !tbaa !13
  %14 = call i32 @firfilt_crcf_destroy(ptr noundef %13)
  br label %15

15:                                               ; preds = %9, %1
  %16 = load ptr, ptr %3, align 8, !tbaa !5
  call void @free(ptr noundef %16) #3
  store i32 0, ptr %2, align 4
  br label %17

17:                                               ; preds = %15, %7
  %18 = load i32, ptr %2, align 4
  ret i32 %18
}

declare i32 @firfilt_crcf_destroy(ptr noundef) #1

attributes #0 = { nounwind "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 = { "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, !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.61 = external hidden unnamed_addr constant [48 x i8], align 1

; Function Attrs: mustprogress nounwind willreturn allockind("free") memory(argmem: readwrite, inaccessiblemem: readwrite)
declare void @free(ptr allocptr nocapture noundef) local_unnamed_addr #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 @cpfskdem_destroy(ptr nocapture noundef %0) local_unnamed_addr #2 {
  %2 = getelementptr inbounds i8, ptr %0, i64 32
  %3 = load i32, ptr %2, align 8, !tbaa !5
  switch i32 %3, label %10 [
    i32 0, label %4
    i32 1, label %6
  ]

4:                                                ; preds = %1
  %5 = tail call i32 (i32, ptr, i32, ptr, ...) @liquid_error_fl(i32 noundef 1, ptr noundef nonnull @.str.49, i32 noundef 278, ptr noundef nonnull @.str.61) #3
  br label %11

6:                                                ; preds = %1
  %7 = getelementptr inbounds i8, ptr %0, i64 48
  %8 = load ptr, ptr %7, align 8, !tbaa !12
  %9 = tail call i32 @firfilt_crcf_destroy(ptr noundef %8) #3
  br label %10

10:                                               ; preds = %6, %1
  tail call void @free(ptr noundef nonnull %0) #3
  br label %11

11:                                               ; preds = %10, %4
  %.0 = phi i32 [ 0, %10 ], [ %5, %4 ]
  ret i32 %.0
}

declare i32 @firfilt_crcf_destroy(ptr noundef) local_unnamed_addr #1

attributes #0 = { mustprogress nounwind willreturn allockind("free") memory(argmem: readwrite, 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 #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 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: CorrelatedValuePropagationPass,EarlyCSEPass,GlobalOptPass,InferFunctionAttrsPass,InstCombinePass,PostOrderFunctionAttrsPass,SROAPass,TailCallElimPass