; LLVM IR from sp-nitech/SPTK :: third_party/WORLD/common.ll (ZN4sptk5world21DestroyForwardRealFFTEPNS0_14ForwardRealFFTE)

; 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.sptk::world::fft_plan" = type { i32, i32, i32, ptr, ptr, ptr, ptr, ptr, ptr, ptr }
%"struct.sptk::world::ForwardRealFFT" = type { i32, ptr, ptr, %"struct.sptk::world::fft_plan" }

; Function Attrs: nobuiltin nounwind
declare void @_ZdaPv(ptr noundef) #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) #1

; Function Attrs: mustprogress uwtable
define dso_local void @_ZN4sptk5world21DestroyForwardRealFFTEPNS0_14ForwardRealFFTE(ptr noundef %0) #2 {
  %2 = alloca ptr, align 8
  %3 = alloca %"struct.sptk::world::fft_plan", align 8
  store ptr %0, ptr %2, align 8, !tbaa !5
  %4 = load ptr, ptr %2, align 8, !tbaa !5
  %5 = getelementptr inbounds %"struct.sptk::world::ForwardRealFFT", ptr %4, i32 0, i32 3
  call void @llvm.memcpy.p0.p0.i64(ptr align 8 %3, ptr align 8 %5, i64 72, i1 false), !tbaa.struct !9
  call void @_ZN4sptk5world16fft_destroy_planENS0_8fft_planE(ptr noundef byval(%"struct.sptk::world::fft_plan") align 8 %3)
  %6 = load ptr, ptr %2, align 8, !tbaa !5
  %7 = getelementptr inbounds %"struct.sptk::world::ForwardRealFFT", ptr %6, i32 0, i32 2
  %8 = load ptr, ptr %7, align 8, !tbaa !12
  %9 = icmp eq ptr %8, null
  br i1 %9, label %12, label %10

10:                                               ; preds = %1
  %11 = getelementptr inbounds [2 x double], ptr %8, i32 0, i32 0
  call void @_ZdaPv(ptr noundef %11) #4
  br label %12

12:                                               ; preds = %10, %1
  %13 = load ptr, ptr %2, align 8, !tbaa !5
  %14 = getelementptr inbounds %"struct.sptk::world::ForwardRealFFT", ptr %13, i32 0, i32 1
  %15 = load ptr, ptr %14, align 8, !tbaa !15
  %16 = icmp eq ptr %15, null
  br i1 %16, label %18, label %17

17:                                               ; preds = %12
  call void @_ZdaPv(ptr noundef %15) #4
  br label %18

18:                                               ; preds = %17, %12
  ret void
}

declare void @_ZN4sptk5world16fft_destroy_planENS0_8fft_planE(ptr noundef byval(%"struct.sptk::world::fft_plan") align 8) #3

attributes #0 = { nobuiltin 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 = { nocallback nofree nounwind willreturn memory(argmem: readwrite) }
attributes #2 = { mustprogress 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 = { "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 = { builtin 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++ TBAA"}
!9 = !{i64 0, i64 4, !10, i64 4, i64 4, !10, i64 8, i64 4, !10, i64 16, i64 8, !5, i64 24, i64 8, !5, i64 32, i64 8, !5, i64 40, i64 8, !5, i64 48, i64 8, !5, i64 56, i64 8, !5, i64 64, i64 8, !5}
!10 = !{!11, !11, i64 0}
!11 = !{!"int", !7, i64 0}
!12 = !{!13, !6, i64 16}
!13 = !{!"_ZTSN4sptk5world14ForwardRealFFTE", !11, i64 0, !6, i64 8, !6, i64 16, !14, i64 24}
!14 = !{!"_ZTSN4sptk5world8fft_planE", !11, i64 0, !11, i64 4, !11, i64 8, !6, i64 16, !6, i64 24, !6, i64 32, !6, i64 40, !6, i64 48, !6, i64 56, !6, i64 64}
!15 = !{!13, !6, i64 8}


; 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"

%"struct.sptk::world::fft_plan" = type { i32, i32, i32, ptr, ptr, ptr, ptr, ptr, ptr, ptr }

; Function Attrs: nobuiltin nounwind
declare void @_ZdaPv(ptr noundef) local_unnamed_addr #0

; Function Attrs: mustprogress uwtable
define dso_local void @_ZN4sptk5world21DestroyForwardRealFFTEPNS0_14ForwardRealFFTE(ptr nocapture noundef readonly %0) local_unnamed_addr #1 {
  %2 = getelementptr inbounds i8, ptr %0, i64 24
  tail call void @_ZN4sptk5world16fft_destroy_planENS0_8fft_planE(ptr noundef nonnull byval(%"struct.sptk::world::fft_plan") align 8 %2)
  %3 = getelementptr inbounds i8, ptr %0, i64 16
  %4 = load ptr, ptr %3, align 8, !tbaa !5
  %5 = icmp eq ptr %4, null
  br i1 %5, label %7, label %6

6:                                                ; preds = %1
  tail call void @_ZdaPv(ptr noundef nonnull %4) #3
  br label %7

7:                                                ; preds = %6, %1
  %8 = getelementptr inbounds i8, ptr %0, i64 8
  %9 = load ptr, ptr %8, align 8, !tbaa !12
  %10 = icmp eq ptr %9, null
  br i1 %10, label %12, label %11

11:                                               ; preds = %7
  tail call void @_ZdaPv(ptr noundef nonnull %9) #3
  br label %12

12:                                               ; preds = %11, %7
  ret void
}

declare void @_ZN4sptk5world16fft_destroy_planENS0_8fft_planE(ptr noundef byval(%"struct.sptk::world::fft_plan") align 8) local_unnamed_addr #2

attributes #0 = { nobuiltin 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 = { mustprogress 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 #2 = { "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 = { builtin 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, !10, i64 16}
!6 = !{!"_ZTSN4sptk5world14ForwardRealFFTE", !7, i64 0, !10, i64 8, !10, i64 16, !11, i64 24}
!7 = !{!"int", !8, i64 0}
!8 = !{!"omnipotent char", !9, i64 0}
!9 = !{!"Simple C++ TBAA"}
!10 = !{!"any pointer", !8, i64 0}
!11 = !{!"_ZTSN4sptk5world8fft_planE", !7, i64 0, !7, i64 4, !7, i64 8, !10, i64 16, !10, i64 24, !10, i64 32, !10, i64 40, !10, i64 48, !10, i64 56, !10, i64 64}
!12 = !{!6, !10, i64 8}


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