; LLVM IR from glotzerlab/hoomd-blue :: hoomd/extern/dfftlib/src (bare_fft_interface)

; 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.bare_fft_plan = type { i32, i32, i32, i32, i32, i32 }

; Function Attrs: mustprogress uwtable
define dso_local void @_Z16dfft_local_1dfftP8cpxfloatS0_13bare_fft_plani(ptr noundef %0, ptr noundef %1, ptr noundef byval(%struct.bare_fft_plan) align 8 %2, i32 noundef %3) #0 {
  %5 = alloca ptr, align 8
  %6 = alloca ptr, align 8
  %7 = alloca i32, align 4
  %8 = alloca %struct.bare_fft_plan, align 8
  %9 = alloca %struct.bare_fft_plan, align 8
  store ptr %0, ptr %5, align 8, !tbaa !5
  store ptr %1, ptr %6, align 8, !tbaa !5
  store i32 %3, ptr %7, align 4, !tbaa !9
  %10 = load i32, ptr %7, align 4, !tbaa !9
  %11 = icmp ne i32 %10, 0
  br i1 %11, label %17, label %12

12:                                               ; preds = %4
  %13 = load ptr, ptr %5, align 8, !tbaa !5
  %14 = load ptr, ptr %6, align 8, !tbaa !5
  %15 = getelementptr inbounds %struct.bare_fft_plan, ptr %2, i32 0, i32 0
  %16 = load i32, ptr %15, align 8, !tbaa !11
  call void @llvm.memcpy.p0.p0.i64(ptr align 4 %8, ptr align 8 %2, i64 24, i1 false), !tbaa.struct !13
  call void @_Z10radix2_fftP8cpxfloatS0_ii13bare_fft_plan(ptr noundef %13, ptr noundef %14, i32 noundef %16, i32 noundef -1, ptr noundef byval(%struct.bare_fft_plan) align 8 %8)
  br label %22

17:                                               ; preds = %4
  %18 = load ptr, ptr %5, align 8, !tbaa !5
  %19 = load ptr, ptr %6, align 8, !tbaa !5
  %20 = getelementptr inbounds %struct.bare_fft_plan, ptr %2, i32 0, i32 0
  %21 = load i32, ptr %20, align 8, !tbaa !11
  call void @llvm.memcpy.p0.p0.i64(ptr align 4 %9, ptr align 8 %2, i64 24, i1 false), !tbaa.struct !13
  call void @_Z10radix2_fftP8cpxfloatS0_ii13bare_fft_plan(ptr noundef %18, ptr noundef %19, i32 noundef %21, i32 noundef 1, ptr noundef byval(%struct.bare_fft_plan) align 8 %9)
  br label %22

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

declare void @_Z10radix2_fftP8cpxfloatS0_ii13bare_fft_plan(ptr noundef, ptr noundef, i32 noundef, i32 noundef, ptr noundef byval(%struct.bare_fft_plan) align 8) #1

; 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) #2

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 = { "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 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, !6, i64 0}
!6 = !{!"any pointer", !7, i64 0}
!7 = !{!"omnipotent char", !8, i64 0}
!8 = !{!"Simple C++ TBAA"}
!9 = !{!10, !10, i64 0}
!10 = !{!"int", !7, i64 0}
!11 = !{!12, !10, i64 0}
!12 = !{!"_ZTS13bare_fft_plan", !10, i64 0, !10, i64 4, !10, i64 8, !10, i64 12, !10, i64 16, !10, i64 20}
!13 = !{i64 0, i64 4, !9, i64 4, i64 4, !9, i64 8, i64 4, !9, i64 12, i64 4, !9, i64 16, i64 4, !9, i64 20, i64 4, !9}


; 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.bare_fft_plan = type { i32, i32, i32, i32, i32, i32 }

; Function Attrs: mustprogress uwtable
define dso_local void @_Z16dfft_local_1dfftP8cpxfloatS0_13bare_fft_plani(ptr noundef %0, ptr noundef %1, ptr nocapture noundef readonly byval(%struct.bare_fft_plan) align 8 %2, i32 noundef %3) local_unnamed_addr #0 {
  %.not = icmp eq i32 %3, 0
  %5 = load i32, ptr %2, align 8, !tbaa !5
  %. = select i1 %.not, i32 -1, i32 1
  tail call void @_Z10radix2_fftP8cpxfloatS0_ii13bare_fft_plan(ptr noundef %0, ptr noundef %1, i32 noundef %5, i32 noundef %., ptr noundef nonnull byval(%struct.bare_fft_plan) align 8 %2)
  ret void
}

declare void @_Z10radix2_fftP8cpxfloatS0_ii13bare_fft_plan(ptr noundef, ptr noundef, i32 noundef, i32 noundef, ptr noundef byval(%struct.bare_fft_plan) align 8) local_unnamed_addr #1

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 = { "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 0}
!6 = !{!"_ZTS13bare_fft_plan", !7, i64 0, !7, i64 4, !7, i64 8, !7, i64 12, !7, i64 16, !7, i64 20}
!7 = !{!"int", !8, i64 0}
!8 = !{!"omnipotent char", !9, i64 0}
!9 = !{!"Simple C++ TBAA"}


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