; LLVM IR from jgaeddert/liquid-dsp :: sandbox (fft_recursive_plan_test)

; 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"

@.str.4 = external hidden unnamed_addr constant [4 x i8], align 1
@optarg = external global ptr, align 8
@stderr = external global ptr, align 8
@.str.5 = external hidden unnamed_addr constant [48 x i8], align 1
@.str.6 = external hidden unnamed_addr constant [7 x i8], align 1

; Function Attrs: nounwind uwtable
declare dso_local void @usage() #0

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

; Function Attrs: nounwind uwtable
define dso_local i32 @main(i32 noundef %0, ptr noundef %1) #0 {
  %3 = alloca i32, align 4
  %4 = alloca i32, align 4
  %5 = alloca ptr, align 8
  %6 = alloca i32, align 4
  %7 = alloca i32, align 4
  %8 = alloca i32, align 4
  store i32 0, ptr %3, align 4
  store i32 %0, ptr %4, align 4, !tbaa !5
  store ptr %1, ptr %5, align 8, !tbaa !9
  call void @llvm.lifetime.start.p0(i64 4, ptr %6) #6
  store i32 124, ptr %6, align 4, !tbaa !5
  call void @llvm.lifetime.start.p0(i64 4, ptr %7) #6
  br label %9

9:                                                ; preds = %21, %2
  %10 = load i32, ptr %4, align 4, !tbaa !5
  %11 = load ptr, ptr %5, align 8, !tbaa !9
  %12 = call i32 @getopt(i32 noundef %10, ptr noundef %11, ptr noundef @.str.4) #6
  store i32 %12, ptr %7, align 4, !tbaa !5
  %13 = icmp ne i32 %12, -1
  br i1 %13, label %14, label %22

14:                                               ; preds = %9
  %15 = load i32, ptr %7, align 4, !tbaa !5
  switch i32 %15, label %20 [
    i32 104, label %16
    i32 110, label %17
  ]

16:                                               ; preds = %14
  call void @usage()
  store i32 0, ptr %3, align 4
  store i32 1, ptr %8, align 4
  br label %31

17:                                               ; preds = %14
  %18 = load ptr, ptr @optarg, align 8, !tbaa !9
  %19 = call i32 @atoi(ptr noundef %18) #7
  store i32 %19, ptr %6, align 4, !tbaa !5
  br label %21

20:                                               ; preds = %14
  call void @exit(i32 noundef 1) #8
  unreachable

21:                                               ; preds = %17
  br label %9, !llvm.loop !11

22:                                               ; preds = %9
  %23 = load i32, ptr %6, align 4, !tbaa !5
  %24 = icmp eq i32 %23, 0
  br i1 %24, label %25, label %28

25:                                               ; preds = %22
  %26 = load ptr, ptr @stderr, align 8, !tbaa !9
  %27 = call i32 (ptr, ptr, ...) @fprintf(ptr noundef %26, ptr noundef @.str.5) #6
  call void @exit(i32 noundef 1) #8
  unreachable

28:                                               ; preds = %22
  %29 = load i32, ptr %6, align 4, !tbaa !5
  call void @liquid_fft_plan(i32 noundef %29, i32 noundef 0)
  %30 = call i32 (ptr, ...) @printf(ptr noundef @.str.6)
  store i32 0, ptr %3, align 4
  store i32 1, ptr %8, align 4
  br label %31

31:                                               ; preds = %28, %16
  call void @llvm.lifetime.end.p0(i64 4, ptr %7) #6
  call void @llvm.lifetime.end.p0(i64 4, ptr %6) #6
  %32 = load i32, ptr %3, align 4
  ret i32 %32
}

; Function Attrs: nocallback nofree nosync nounwind willreturn memory(argmem: readwrite)
declare void @llvm.lifetime.start.p0(i64 immarg, ptr nocapture) #2

; Function Attrs: nounwind
declare i32 @getopt(i32 noundef, ptr noundef, ptr noundef) #3

; Function Attrs: inlinehint nounwind willreturn memory(read) uwtable
declare i32 @atoi(ptr noundef nonnull) #4

; Function Attrs: noreturn nounwind
declare void @exit(i32 noundef) #5

; Function Attrs: nounwind
declare i32 @fprintf(ptr noundef, ptr noundef, ...) #3

; Function Attrs: nounwind uwtable
declare dso_local void @liquid_fft_plan(i32 noundef, i32 noundef) #0

; Function Attrs: nocallback nofree nosync nounwind willreturn memory(argmem: readwrite)
declare void @llvm.lifetime.end.p0(i64 immarg, ptr nocapture) #2

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" }
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 = { nocallback nofree nosync nounwind willreturn memory(argmem: readwrite) }
attributes #3 = { 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 #4 = { inlinehint nounwind willreturn memory(read) 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 = { noreturn 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 #6 = { nounwind }
attributes #7 = { nounwind willreturn memory(read) }
attributes #8 = { noreturn 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 = !{!"int", !7, i64 0}
!7 = !{!"omnipotent char", !8, i64 0}
!8 = !{!"Simple C/C++ TBAA"}
!9 = !{!10, !10, i64 0}
!10 = !{!"any pointer", !7, i64 0}
!11 = distinct !{!11, !12}
!12 = !{!"llvm.loop.mustprogress"}


; 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.4 = external hidden unnamed_addr constant [4 x i8], align 1
@optarg = external local_unnamed_addr global ptr, align 8
@stderr = external local_unnamed_addr global ptr, align 8
@.str.5 = external hidden unnamed_addr constant [48 x i8], align 1
@.str.6 = external hidden unnamed_addr constant [7 x i8], align 1

; Function Attrs: nounwind uwtable
declare dso_local void @usage() local_unnamed_addr #0

; Function Attrs: nofree nounwind
declare noundef i32 @printf(ptr nocapture noundef readonly, ...) local_unnamed_addr #1

; Function Attrs: nounwind uwtable
define dso_local noundef i32 @main(i32 noundef %0, ptr noundef %1) local_unnamed_addr #0 {
  br label %3

3:                                                ; preds = %6, %2
  %.05 = phi i32 [ 124, %2 ], [ %8, %6 ]
  %4 = tail call i32 @getopt(i32 noundef %0, ptr noundef %1, ptr noundef nonnull @.str.4) #5
  switch i32 %4, label %9 [
    i32 -1, label %10
    i32 104, label %5
    i32 110, label %6
  ]

5:                                                ; preds = %3
  tail call void @usage()
  br label %17

6:                                                ; preds = %3
  %7 = load ptr, ptr @optarg, align 8, !tbaa !5
  %8 = tail call i32 @atoi(ptr nocapture noundef %7) #6
  br label %3, !llvm.loop !9

9:                                                ; preds = %3
  tail call void @exit(i32 noundef 1) #7
  unreachable

10:                                               ; preds = %3
  %11 = icmp eq i32 %.05, 0
  br i1 %11, label %12, label %15

12:                                               ; preds = %10
  %13 = load ptr, ptr @stderr, align 8, !tbaa !5
  %14 = tail call i32 (ptr, ptr, ...) @fprintf(ptr noundef %13, ptr noundef nonnull @.str.5) #8
  tail call void @exit(i32 noundef 1) #7
  unreachable

15:                                               ; preds = %10
  tail call void @liquid_fft_plan(i32 noundef %.05, i32 noundef 0)
  %16 = tail call i32 (ptr, ...) @printf(ptr noundef nonnull dereferenceable(1) @.str.6)
  br label %17

17:                                               ; preds = %15, %5
  ret i32 0
}

; Function Attrs: nounwind
declare i32 @getopt(i32 noundef, ptr noundef, ptr noundef) local_unnamed_addr #2

; Function Attrs: inlinehint mustprogress nofree nounwind willreturn memory(read) uwtable
declare i32 @atoi(ptr nocapture noundef nonnull) local_unnamed_addr #3

; Function Attrs: noreturn nounwind
declare void @exit(i32 noundef) local_unnamed_addr #4

; Function Attrs: nofree nounwind
declare noundef i32 @fprintf(ptr nocapture noundef, ptr nocapture noundef readonly, ...) local_unnamed_addr #1

; Function Attrs: nounwind uwtable
declare dso_local void @liquid_fft_plan(i32 noundef, i32 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" }
attributes #1 = { nofree 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 #2 = { 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 #3 = { inlinehint mustprogress nofree nounwind willreturn memory(read) 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 #4 = { noreturn 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 #5 = { nounwind }
attributes #6 = { nounwind willreturn memory(read) }
attributes #7 = { noreturn nounwind }
attributes #8 = { cold 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 = distinct !{!9, !10}
!10 = !{!"llvm.loop.mustprogress"}


; Effective O3 passes: GVNPass,GlobalOptPass,InferFunctionAttrsPass,InstCombinePass,InstSimplifyPass,LCSSAPass,LoopUnrollPass,PostOrderFunctionAttrsPass,SROAPass,SimplifyCFGPass,TailCallElimPass