; LLVM IR from sp-nitech/SPTK :: third_party/WORLD/fft_world.ll (ZN4sptk5world11fft_executeENS0_8fft_planE)

; 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 }

; Function Attrs: mustprogress uwtable
define dso_local void @_ZN4sptk5world11fft_executeENS0_8fft_planE(ptr noundef byval(%"struct.sptk::world::fft_plan") align 8 %0) #0 {
  %2 = alloca %"struct.sptk::world::fft_plan", align 8
  %3 = alloca %"struct.sptk::world::fft_plan", align 8
  %4 = getelementptr inbounds %"struct.sptk::world::fft_plan", ptr %0, i32 0, i32 1
  %5 = load i32, ptr %4, align 4, !tbaa !5
  %6 = icmp eq i32 %5, 1
  br i1 %6, label %7, label %8

7:                                                ; preds = %1
  call void @llvm.memcpy.p0.p0.i64(ptr align 8 %2, ptr align 8 %0, i64 72, i1 false), !tbaa.struct !11
  call void @_ZN4sptk5world12_GLOBAL__N_110ForwardFFTENS0_8fft_planE(ptr noundef byval(%"struct.sptk::world::fft_plan") align 8 %2)
  br label %9

8:                                                ; preds = %1
  call void @llvm.memcpy.p0.p0.i64(ptr align 8 %3, ptr align 8 %0, i64 72, i1 false), !tbaa.struct !11
  call void @_ZN4sptk5world12_GLOBAL__N_111BackwardFFTENS0_8fft_planE(ptr noundef byval(%"struct.sptk::world::fft_plan") align 8 %3)
  br label %9

9:                                                ; preds = %8, %7
  ret void
}

; Function Attrs: mustprogress uwtable
declare hidden void @_ZN4sptk5world12_GLOBAL__N_110ForwardFFTENS0_8fft_planE(ptr noundef byval(%"struct.sptk::world::fft_plan") align 8) #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
declare hidden void @_ZN4sptk5world12_GLOBAL__N_111BackwardFFTENS0_8fft_planE(ptr noundef byval(%"struct.sptk::world::fft_plan") align 8) #0

attributes #0 = { 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 #1 = { nocallback nofree nounwind willreturn memory(argmem: readwrite) }

!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 4}
!6 = !{!"_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}
!7 = !{!"int", !8, i64 0}
!8 = !{!"omnipotent char", !9, i64 0}
!9 = !{!"Simple C++ TBAA"}
!10 = !{!"any pointer", !8, i64 0}
!11 = !{i64 0, i64 4, !12, i64 4, i64 4, !12, i64 8, i64 4, !12, i64 16, i64 8, !13, i64 24, i64 8, !13, i64 32, i64 8, !13, i64 40, i64 8, !13, i64 48, i64 8, !13, i64 56, i64 8, !13, i64 64, i64 8, !13}
!12 = !{!7, !7, i64 0}
!13 = !{!10, !10, 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"

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

; Function Attrs: mustprogress uwtable
define dso_local void @_ZN4sptk5world11fft_executeENS0_8fft_planE(ptr nocapture noundef readonly byval(%"struct.sptk::world::fft_plan") align 8 %0) local_unnamed_addr #0 {
  %2 = getelementptr inbounds i8, ptr %0, i64 4
  %3 = load i32, ptr %2, align 4, !tbaa !5
  %4 = icmp eq i32 %3, 1
  br i1 %4, label %5, label %6

5:                                                ; preds = %1
  tail call void @_ZN4sptk5world12_GLOBAL__N_110ForwardFFTENS0_8fft_planE(ptr noundef nonnull byval(%"struct.sptk::world::fft_plan") align 8 %0)
  br label %7

6:                                                ; preds = %1
  tail call void @_ZN4sptk5world12_GLOBAL__N_111BackwardFFTENS0_8fft_planE(ptr noundef nonnull byval(%"struct.sptk::world::fft_plan") align 8 %0)
  br label %7

7:                                                ; preds = %6, %5
  ret void
}

; Function Attrs: mustprogress uwtable
declare hidden void @_ZN4sptk5world12_GLOBAL__N_110ForwardFFTENS0_8fft_planE(ptr noundef byval(%"struct.sptk::world::fft_plan") align 8) local_unnamed_addr #0

; Function Attrs: mustprogress uwtable
declare hidden void @_ZN4sptk5world12_GLOBAL__N_111BackwardFFTENS0_8fft_planE(ptr noundef byval(%"struct.sptk::world::fft_plan") align 8) local_unnamed_addr #0

attributes #0 = { 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" }

!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 4}
!6 = !{!"_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}
!7 = !{!"int", !8, i64 0}
!8 = !{!"omnipotent char", !9, i64 0}
!9 = !{!"Simple C++ TBAA"}
!10 = !{!"any pointer", !8, i64 0}


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