; LLVM IR from jgaeddert/liquid-dsp :: src/fft/src (spgramcf)

; 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.spgramcf_s = type { i32, i32, i32, i32, float, float, i32, ptr, ptr, ptr, ptr, ptr, ptr, i32, i64, i64, i64, i64, float, float }

; Function Attrs: nocallback nofree nosync nounwind willreturn memory(argmem: readwrite)
declare void @llvm.lifetime.start.p0(i64 immarg, ptr nocapture) #0

; Function Attrs: nocallback nofree nosync nounwind willreturn memory(argmem: readwrite)
declare void @llvm.lifetime.end.p0(i64 immarg, ptr nocapture) #0

; Function Attrs: nounwind uwtable
define dso_local i32 @spgramcf_get_psd(ptr noundef %0, ptr noundef %1) #1 {
  %3 = alloca i32, align 4
  %4 = alloca ptr, align 8
  %5 = alloca ptr, align 8
  %6 = alloca i32, align 4
  %7 = alloca i32, align 4
  %8 = alloca i32, align 4
  store ptr %0, ptr %4, align 8, !tbaa !5
  store ptr %1, ptr %5, align 8, !tbaa !5
  call void @llvm.lifetime.start.p0(i64 4, ptr %6) #3
  %9 = load ptr, ptr %4, align 8, !tbaa !5
  %10 = load ptr, ptr %5, align 8, !tbaa !5
  %11 = call i32 @spgramcf_get_psd_mag(ptr noundef %9, ptr noundef %10)
  store i32 %11, ptr %6, align 4, !tbaa !9
  %12 = load i32, ptr %6, align 4, !tbaa !9
  %13 = icmp ne i32 %12, 0
  br i1 %13, label %14, label %16

14:                                               ; preds = %2
  %15 = load i32, ptr %6, align 4, !tbaa !9
  store i32 %15, ptr %3, align 4
  store i32 1, ptr %7, align 4
  br label %39

16:                                               ; preds = %2
  call void @llvm.lifetime.start.p0(i64 4, ptr %8) #3
  store i32 0, ptr %8, align 4, !tbaa !9
  br label %17

17:                                               ; preds = %35, %16
  %18 = load i32, ptr %8, align 4, !tbaa !9
  %19 = load ptr, ptr %4, align 8, !tbaa !5
  %20 = getelementptr inbounds %struct.spgramcf_s, ptr %19, i32 0, i32 0
  %21 = load i32, ptr %20, align 8, !tbaa !11
  %22 = icmp ult i32 %18, %21
  br i1 %22, label %23, label %38

23:                                               ; preds = %17
  %24 = load ptr, ptr %5, align 8, !tbaa !5
  %25 = load i32, ptr %8, align 4, !tbaa !9
  %26 = zext i32 %25 to i64
  %27 = getelementptr inbounds float, ptr %24, i64 %26
  %28 = load float, ptr %27, align 4, !tbaa !15
  %29 = call float @log10f(float noundef %28) #3
  %30 = fmul float 1.000000e+01, %29
  %31 = load ptr, ptr %5, align 8, !tbaa !5
  %32 = load i32, ptr %8, align 4, !tbaa !9
  %33 = zext i32 %32 to i64
  %34 = getelementptr inbounds float, ptr %31, i64 %33
  store float %30, ptr %34, align 4, !tbaa !15
  br label %35

35:                                               ; preds = %23
  %36 = load i32, ptr %8, align 4, !tbaa !9
  %37 = add i32 %36, 1
  store i32 %37, ptr %8, align 4, !tbaa !9
  br label %17, !llvm.loop !16

38:                                               ; preds = %17
  store i32 0, ptr %3, align 4
  store i32 1, ptr %7, align 4
  call void @llvm.lifetime.end.p0(i64 4, ptr %8) #3
  br label %39

39:                                               ; preds = %38, %14
  call void @llvm.lifetime.end.p0(i64 4, ptr %6) #3
  %40 = load i32, ptr %3, align 4
  ret i32 %40
}

; Function Attrs: nounwind uwtable
declare dso_local i32 @spgramcf_get_psd_mag(ptr noundef, ptr noundef) #1

; Function Attrs: nounwind
declare float @log10f(float noundef) #2

attributes #0 = { nocallback nofree nosync nounwind willreturn memory(argmem: readwrite) }
attributes #1 = { 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 #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 = { 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 = !{!10, !10, i64 0}
!10 = !{!"int", !7, i64 0}
!11 = !{!12, !10, i64 0}
!12 = !{!"spgramcf_s", !10, i64 0, !10, i64 4, !10, i64 8, !10, i64 12, !13, i64 16, !13, i64 20, !10, i64 24, !6, i64 32, !6, i64 40, !6, i64 48, !6, i64 56, !6, i64 64, !6, i64 72, !10, i64 80, !14, i64 88, !14, i64 96, !14, i64 104, !14, i64 112, !13, i64 120, !13, i64 124}
!13 = !{!"float", !7, i64 0}
!14 = !{!"long long", !7, i64 0}
!15 = !{!13, !13, i64 0}
!16 = distinct !{!16, !17}
!17 = !{!"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"

; Function Attrs: nounwind uwtable
define dso_local i32 @spgramcf_get_psd(ptr noundef %0, ptr noundef %1) local_unnamed_addr #0 {
  %3 = tail call i32 @spgramcf_get_psd_mag(ptr noundef %0, ptr noundef %1)
  %.not = icmp eq i32 %3, 0
  br i1 %.not, label %.preheader, label %.loopexit

.preheader:                                       ; preds = %2
  %4 = load i32, ptr %0, align 8, !tbaa !5
  %.not14 = icmp eq i32 %4, 0
  br i1 %.not14, label %.loopexit, label %.lr.ph

.lr.ph:                                           ; preds = %.preheader, %.lr.ph
  %indvars.iv = phi i64 [ %indvars.iv.next, %.lr.ph ], [ 0, %.preheader ]
  %5 = getelementptr inbounds float, ptr %1, i64 %indvars.iv
  %6 = load float, ptr %5, align 4, !tbaa !13
  %7 = tail call float @log10f(float noundef %6) #2
  %8 = fmul float %7, 1.000000e+01
  store float %8, ptr %5, align 4, !tbaa !13
  %indvars.iv.next = add nuw nsw i64 %indvars.iv, 1
  %9 = load i32, ptr %0, align 8, !tbaa !5
  %10 = zext i32 %9 to i64
  %11 = icmp ult i64 %indvars.iv.next, %10
  br i1 %11, label %.lr.ph, label %.loopexit, !llvm.loop !14

.loopexit:                                        ; preds = %.lr.ph, %.preheader, %2
  %.011 = phi i32 [ %3, %2 ], [ 0, %.preheader ], [ 0, %.lr.ph ]
  ret i32 %.011
}

; Function Attrs: nounwind uwtable
declare dso_local i32 @spgramcf_get_psd_mag(ptr noundef, ptr noundef) local_unnamed_addr #0

; Function Attrs: mustprogress nofree nounwind willreturn memory(write)
declare float @log10f(float noundef) local_unnamed_addr #1

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 = { mustprogress nofree nounwind willreturn memory(write) "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 }

!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 = !{!"spgramcf_s", !7, i64 0, !7, i64 4, !7, i64 8, !7, i64 12, !10, i64 16, !10, i64 20, !7, i64 24, !11, i64 32, !11, i64 40, !11, i64 48, !11, i64 56, !11, i64 64, !11, i64 72, !7, i64 80, !12, i64 88, !12, i64 96, !12, i64 104, !12, i64 112, !10, i64 120, !10, i64 124}
!7 = !{!"int", !8, i64 0}
!8 = !{!"omnipotent char", !9, i64 0}
!9 = !{!"Simple C/C++ TBAA"}
!10 = !{!"float", !8, i64 0}
!11 = !{!"any pointer", !8, i64 0}
!12 = !{!"long long", !8, i64 0}
!13 = !{!10, !10, i64 0}
!14 = distinct !{!14, !15}
!15 = !{!"llvm.loop.mustprogress"}


; Effective O3 passes: CorrelatedValuePropagationPass,EarlyCSEPass,GlobalOptPass,IndVarSimplifyPass,InferFunctionAttrsPass,InstCombinePass,JumpThreadingPass,LoopRotatePass,LoopSimplifyPass,LoopUnrollPass,SROAPass,SimplifyCFGPass,TailCallElimPass