; LLVM IR from ljm941004/HYPERCV_PUBLIC :: modules/algorithm/src (dft)

; 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.SIMPLE_MAT = type { i32, i32, i32, i32, i32, ptr }

; Function Attrs: nounwind uwtable
define dso_local void @hypercv_idft(ptr noundef %0, ptr noundef %1, ptr noundef %2) #0 {
  %4 = alloca ptr, align 8
  %5 = alloca ptr, align 8
  %6 = alloca ptr, align 8
  store ptr %0, ptr %4, align 8, !tbaa !5
  store ptr %1, ptr %5, align 8, !tbaa !5
  store ptr %2, ptr %6, align 8, !tbaa !5
  %7 = load ptr, ptr %6, align 8, !tbaa !5
  %8 = getelementptr inbounds %struct.SIMPLE_MAT, ptr %7, i32 0, i32 2
  %9 = load i32, ptr %8, align 8, !tbaa !9
  %10 = icmp eq i32 %9, 1
  br i1 %10, label %11, label %15

11:                                               ; preds = %3
  %12 = load ptr, ptr %4, align 8, !tbaa !5
  %13 = load ptr, ptr %5, align 8, !tbaa !5
  %14 = load ptr, ptr %6, align 8, !tbaa !5
  call void @hypercv_idft_uchar(ptr noundef %12, ptr noundef %13, ptr noundef %14)
  br label %25

15:                                               ; preds = %3
  %16 = load ptr, ptr %6, align 8, !tbaa !5
  %17 = getelementptr inbounds %struct.SIMPLE_MAT, ptr %16, i32 0, i32 2
  %18 = load i32, ptr %17, align 8, !tbaa !9
  %19 = icmp eq i32 %18, 12
  br i1 %19, label %20, label %24

20:                                               ; preds = %15
  %21 = load ptr, ptr %4, align 8, !tbaa !5
  %22 = load ptr, ptr %5, align 8, !tbaa !5
  %23 = load ptr, ptr %6, align 8, !tbaa !5
  call void @hypercv_idft_ushort(ptr noundef %21, ptr noundef %22, ptr noundef %23)
  br label %24

24:                                               ; preds = %20, %15
  br label %25

25:                                               ; preds = %24, %11
  ret void
}

; Function Attrs: nounwind uwtable
declare dso_local void @hypercv_idft_uchar(ptr noundef, ptr noundef, ptr noundef) #0

; Function Attrs: nounwind uwtable
declare dso_local void @hypercv_idft_ushort(ptr noundef, ptr 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, !11, i64 8}
!10 = !{!"", !11, i64 0, !11, i64 4, !11, i64 8, !11, i64 12, !11, i64 16, !6, i64 24}
!11 = !{!"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 void @hypercv_idft(ptr noundef %0, ptr noundef %1, ptr noundef %2) local_unnamed_addr #0 {
  %4 = getelementptr inbounds i8, ptr %2, i64 8
  %5 = load i32, ptr %4, align 8, !tbaa !5
  switch i32 %5, label %8 [
    i32 1, label %6
    i32 12, label %7
  ]

6:                                                ; preds = %3
  tail call void @hypercv_idft_uchar(ptr noundef %0, ptr noundef %1, ptr noundef nonnull %2)
  br label %8

7:                                                ; preds = %3
  tail call void @hypercv_idft_ushort(ptr noundef %0, ptr noundef %1, ptr noundef nonnull %2)
  br label %8

8:                                                ; preds = %3, %7, %6
  ret void
}

; Function Attrs: nounwind uwtable
declare dso_local void @hypercv_idft_uchar(ptr noundef, ptr noundef, ptr noundef) local_unnamed_addr #0

; Function Attrs: nounwind uwtable
declare dso_local void @hypercv_idft_ushort(ptr noundef, ptr 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, !7, i64 8}
!6 = !{!"", !7, i64 0, !7, i64 4, !7, i64 8, !7, i64 12, !7, i64 16, !10, i64 24}
!7 = !{!"int", !8, i64 0}
!8 = !{!"omnipotent char", !9, i64 0}
!9 = !{!"Simple C/C++ TBAA"}
!10 = !{!"any pointer", !8, i64 0}


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