; LLVM IR from sp-nitech/SPTK :: src/math (discrete_cosine_transform)

; 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"

; Function Attrs: mustprogress uwtable
declare dso_local noundef zeroext i1 @_ZNK4sptk23DiscreteCosineTransform3RunERKSt6vectorIdSaIdEES5_PS3_S6_PNS0_6BufferE(ptr noundef nonnull align 8 dereferenceable(80), ptr noundef nonnull align 8 dereferenceable(24), ptr noundef nonnull align 8 dereferenceable(24), ptr noundef, ptr noundef, ptr noundef) #0 align 2

; Function Attrs: mustprogress uwtable
define dso_local noundef zeroext i1 @_ZNK4sptk23DiscreteCosineTransform3RunEPSt6vectorIdSaIdEES4_PNS0_6BufferE(ptr noundef nonnull align 8 dereferenceable(80) %0, ptr noundef %1, ptr noundef %2, ptr noundef %3) #0 align 2 {
  %5 = alloca i1, align 1
  %6 = alloca ptr, align 8
  %7 = alloca ptr, align 8
  %8 = alloca ptr, align 8
  %9 = alloca ptr, align 8
  store ptr %0, ptr %6, align 8, !tbaa !5
  store ptr %1, ptr %7, align 8, !tbaa !5
  store ptr %2, ptr %8, align 8, !tbaa !5
  store ptr %3, ptr %9, align 8, !tbaa !5
  %10 = load ptr, ptr %6, align 8
  %11 = load ptr, ptr %7, align 8, !tbaa !5
  %12 = icmp eq ptr null, %11
  br i1 %12, label %16, label %13

13:                                               ; preds = %4
  %14 = load ptr, ptr %8, align 8, !tbaa !5
  %15 = icmp eq ptr null, %14
  br i1 %15, label %16, label %17

16:                                               ; preds = %13, %4
  store i1 false, ptr %5, align 1
  br label %24

17:                                               ; preds = %13
  %18 = load ptr, ptr %7, align 8, !tbaa !5
  %19 = load ptr, ptr %8, align 8, !tbaa !5
  %20 = load ptr, ptr %7, align 8, !tbaa !5
  %21 = load ptr, ptr %8, align 8, !tbaa !5
  %22 = load ptr, ptr %9, align 8, !tbaa !5
  %23 = call noundef zeroext i1 @_ZNK4sptk23DiscreteCosineTransform3RunERKSt6vectorIdSaIdEES5_PS3_S6_PNS0_6BufferE(ptr noundef nonnull align 8 dereferenceable(80) %10, ptr noundef nonnull align 8 dereferenceable(24) %18, ptr noundef nonnull align 8 dereferenceable(24) %19, ptr noundef %20, ptr noundef %21, ptr noundef %22)
  store i1 %23, ptr %5, align 1
  br label %24

24:                                               ; preds = %17, %16
  %25 = load i1, ptr %5, align 1
  ret i1 %25
}

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, !6, i64 0}
!6 = !{!"any pointer", !7, i64 0}
!7 = !{!"omnipotent char", !8, i64 0}
!8 = !{!"Simple C++ TBAA"}


; 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: mustprogress uwtable
declare dso_local noundef zeroext i1 @_ZNK4sptk23DiscreteCosineTransform3RunERKSt6vectorIdSaIdEES5_PS3_S6_PNS0_6BufferE(ptr noundef nonnull align 8 dereferenceable(80), ptr noundef nonnull align 8 dereferenceable(24), ptr noundef nonnull align 8 dereferenceable(24), ptr noundef, ptr noundef, ptr noundef) local_unnamed_addr #0 align 2

; Function Attrs: mustprogress uwtable
define dso_local noundef zeroext i1 @_ZNK4sptk23DiscreteCosineTransform3RunEPSt6vectorIdSaIdEES4_PNS0_6BufferE(ptr noundef nonnull align 8 dereferenceable(80) %0, ptr noundef %1, ptr noundef %2, ptr noundef %3) local_unnamed_addr #0 align 2 {
  %5 = icmp eq ptr %1, null
  %6 = icmp eq ptr %2, null
  %or.cond = or i1 %5, %6
  br i1 %or.cond, label %9, label %7

7:                                                ; preds = %4
  %8 = tail call noundef zeroext i1 @_ZNK4sptk23DiscreteCosineTransform3RunERKSt6vectorIdSaIdEES5_PS3_S6_PNS0_6BufferE(ptr noundef nonnull align 8 dereferenceable(80) %0, ptr noundef nonnull align 8 dereferenceable(24) %1, ptr noundef nonnull align 8 dereferenceable(24) %2, ptr noundef nonnull %1, ptr noundef nonnull %2, ptr noundef %3)
  br label %9

9:                                                ; preds = %4, %7
  %.0 = phi i1 [ %8, %7 ], [ false, %4 ]
  ret i1 %.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)"}


; Effective O3 passes: CorrelatedValuePropagationPass,GlobalOptPass,InstCombinePass,SROAPass,SimplifyCFGPass,TailCallElimPass