; LLVM IR from Optiroc/SuperFamiconv :: src/Palette.ll (ZNK3sfc7Palette4sizeEv)

; 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"

%"class.__gnu_cxx::__normal_iterator.20" = type { ptr }
%"class.std::vector" = type { %"struct.std::_Vector_base" }
%"struct.std::_Vector_base" = type { %"struct.std::_Vector_base<unsigned int, std::allocator<unsigned int>>::_Vector_impl" }
%"struct.std::_Vector_base<unsigned int, std::allocator<unsigned int>>::_Vector_impl" = type { %"struct.std::_Vector_base<unsigned int, std::allocator<unsigned int>>::_Vector_impl_data" }
%"struct.std::_Vector_base<unsigned int, std::allocator<unsigned int>>::_Vector_impl_data" = type { ptr, ptr, ptr }
%"struct.sfc::Palette" = type <{ i32, i32, i32, [4 x i8], %"class.std::vector.4", i32, i8, [3 x i8] }>
%"class.std::vector.4" = type { %"struct.std::_Vector_base.5" }
%"struct.std::_Vector_base.5" = type { %"struct.std::_Vector_base<sfc::Subpalette, std::allocator<sfc::Subpalette>>::_Vector_impl" }
%"struct.std::_Vector_base<sfc::Subpalette, std::allocator<sfc::Subpalette>>::_Vector_impl" = type { %"struct.std::_Vector_base<sfc::Subpalette, std::allocator<sfc::Subpalette>>::_Vector_impl_data" }
%"struct.std::_Vector_base<sfc::Subpalette, std::allocator<sfc::Subpalette>>::_Vector_impl_data" = type { ptr, ptr, ptr }

; 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: mustprogress nounwind uwtable
declare dso_local noundef i64 @_ZNKSt6vectorIjSaIjEE4sizeEv(ptr noundef nonnull align 8 dereferenceable(24)) #1 align 2

; Function Attrs: mustprogress nounwind uwtable
declare dso_local void @_ZNSt6vectorIjSaIjEED2Ev(ptr noundef nonnull align 8 dereferenceable(24)) unnamed_addr #1 align 2

; Function Attrs: mustprogress uwtable
define dso_local noundef i32 @_ZNK3sfc7Palette4sizeEv(ptr noundef nonnull align 8 dereferenceable(48) %0) #2 align 2 {
  %2 = alloca ptr, align 8
  %3 = alloca i32, align 4
  %4 = alloca ptr, align 8
  %5 = alloca %"class.__gnu_cxx::__normal_iterator.20", align 8
  %6 = alloca %"class.__gnu_cxx::__normal_iterator.20", align 8
  %7 = alloca ptr, align 8
  %8 = alloca %"class.std::vector", align 8
  store ptr %0, ptr %2, align 8, !tbaa !5
  %9 = load ptr, ptr %2, align 8
  call void @llvm.lifetime.start.p0(i64 4, ptr %3) #4
  store i32 0, ptr %3, align 4, !tbaa !9
  call void @llvm.lifetime.start.p0(i64 8, ptr %4) #4
  %10 = getelementptr inbounds %"struct.sfc::Palette", ptr %9, i32 0, i32 4
  store ptr %10, ptr %4, align 8, !tbaa !5
  call void @llvm.lifetime.start.p0(i64 8, ptr %5) #4
  %11 = load ptr, ptr %4, align 8, !tbaa !5
  %12 = call ptr @_ZNKSt6vectorIN3sfc10SubpaletteESaIS1_EE5beginEv(ptr noundef nonnull align 8 dereferenceable(24) %11) #4
  %13 = getelementptr inbounds %"class.__gnu_cxx::__normal_iterator.20", ptr %5, i32 0, i32 0
  store ptr %12, ptr %13, align 8
  call void @llvm.lifetime.start.p0(i64 8, ptr %6) #4
  %14 = load ptr, ptr %4, align 8, !tbaa !5
  %15 = call ptr @_ZNKSt6vectorIN3sfc10SubpaletteESaIS1_EE3endEv(ptr noundef nonnull align 8 dereferenceable(24) %14) #4
  %16 = getelementptr inbounds %"class.__gnu_cxx::__normal_iterator.20", ptr %6, i32 0, i32 0
  store ptr %15, ptr %16, align 8
  br label %17

17:                                               ; preds = %28, %1
  %18 = call noundef zeroext i1 @_ZN9__gnu_cxxneIPKN3sfc10SubpaletteESt6vectorIS2_SaIS2_EEEEbRKNS_17__normal_iteratorIT_T0_EESD_(ptr noundef nonnull align 8 dereferenceable(8) %5, ptr noundef nonnull align 8 dereferenceable(8) %6) #4
  br i1 %18, label %20, label %19

19:                                               ; preds = %17
  call void @llvm.lifetime.end.p0(i64 8, ptr %6) #4
  call void @llvm.lifetime.end.p0(i64 8, ptr %5) #4
  call void @llvm.lifetime.end.p0(i64 8, ptr %4) #4
  br label %30

20:                                               ; preds = %17
  call void @llvm.lifetime.start.p0(i64 8, ptr %7) #4
  %21 = call noundef nonnull align 8 dereferenceable(80) ptr @_ZNK9__gnu_cxx17__normal_iteratorIPKN3sfc10SubpaletteESt6vectorIS2_SaIS2_EEEdeEv(ptr noundef nonnull align 8 dereferenceable(8) %5) #4
  store ptr %21, ptr %7, align 8, !tbaa !5
  call void @llvm.lifetime.start.p0(i64 24, ptr %8) #4
  %22 = load ptr, ptr %7, align 8, !tbaa !5
  call void @_ZNK3sfc10Subpalette6colorsEv(ptr dead_on_unwind writable sret(%"class.std::vector") align 8 %8, ptr noundef nonnull align 8 dereferenceable(80) %22)
  %23 = call noundef i64 @_ZNKSt6vectorIjSaIjEE4sizeEv(ptr noundef nonnull align 8 dereferenceable(24) %8) #4
  %24 = load i32, ptr %3, align 4, !tbaa !9
  %25 = zext i32 %24 to i64
  %26 = add i64 %25, %23
  %27 = trunc i64 %26 to i32
  store i32 %27, ptr %3, align 4, !tbaa !9
  call void @_ZNSt6vectorIjSaIjEED2Ev(ptr noundef nonnull align 8 dereferenceable(24) %8) #4
  call void @llvm.lifetime.end.p0(i64 24, ptr %8) #4
  call void @llvm.lifetime.end.p0(i64 8, ptr %7) #4
  br label %28

28:                                               ; preds = %20
  %29 = call noundef nonnull align 8 dereferenceable(8) ptr @_ZN9__gnu_cxx17__normal_iteratorIPKN3sfc10SubpaletteESt6vectorIS2_SaIS2_EEEppEv(ptr noundef nonnull align 8 dereferenceable(8) %5) #4
  br label %17

30:                                               ; preds = %19
  %31 = load i32, ptr %3, align 4, !tbaa !9
  call void @llvm.lifetime.end.p0(i64 4, ptr %3) #4
  ret i32 %31
}

; Function Attrs: mustprogress nounwind uwtable
declare dso_local ptr @_ZNKSt6vectorIN3sfc10SubpaletteESaIS1_EE5beginEv(ptr noundef nonnull align 8 dereferenceable(24)) #1 align 2

; Function Attrs: mustprogress nounwind uwtable
declare dso_local ptr @_ZNKSt6vectorIN3sfc10SubpaletteESaIS1_EE3endEv(ptr noundef nonnull align 8 dereferenceable(24)) #1 align 2

; Function Attrs: inlinehint mustprogress nounwind uwtable
declare dso_local noundef zeroext i1 @_ZN9__gnu_cxxneIPKN3sfc10SubpaletteESt6vectorIS2_SaIS2_EEEEbRKNS_17__normal_iteratorIT_T0_EESD_(ptr noundef nonnull align 8 dereferenceable(8), ptr noundef nonnull align 8 dereferenceable(8)) #3

; Function Attrs: mustprogress nounwind uwtable
declare dso_local noundef nonnull align 8 dereferenceable(80) ptr @_ZNK9__gnu_cxx17__normal_iteratorIPKN3sfc10SubpaletteESt6vectorIS2_SaIS2_EEEdeEv(ptr noundef nonnull align 8 dereferenceable(8)) #1 align 2

; Function Attrs: mustprogress uwtable
declare dso_local void @_ZNK3sfc10Subpalette6colorsEv(ptr dead_on_unwind noalias writable sret(%"class.std::vector") align 8, ptr noundef nonnull align 8 dereferenceable(80)) #2 align 2

; Function Attrs: mustprogress nounwind uwtable
declare dso_local noundef nonnull align 8 dereferenceable(8) ptr @_ZN9__gnu_cxx17__normal_iteratorIPKN3sfc10SubpaletteESt6vectorIS2_SaIS2_EEEppEv(ptr noundef nonnull align 8 dereferenceable(8)) #1 align 2

attributes #0 = { nocallback nofree nosync nounwind willreturn memory(argmem: readwrite) }
attributes #1 = { mustprogress 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 = { 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 = { inlinehint mustprogress 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 #4 = { 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 = !{!10, !10, i64 0}
!10 = !{!"int", !7, 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"

%"class.__gnu_cxx::__normal_iterator.20" = type { ptr }
%"class.std::vector" = type { %"struct.std::_Vector_base" }
%"struct.std::_Vector_base" = type { %"struct.std::_Vector_base<unsigned int, std::allocator<unsigned int>>::_Vector_impl" }
%"struct.std::_Vector_base<unsigned int, std::allocator<unsigned int>>::_Vector_impl" = type { %"struct.std::_Vector_base<unsigned int, std::allocator<unsigned int>>::_Vector_impl_data" }
%"struct.std::_Vector_base<unsigned int, std::allocator<unsigned int>>::_Vector_impl_data" = type { ptr, ptr, ptr }

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

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

; Function Attrs: mustprogress nounwind uwtable
declare dso_local noundef i64 @_ZNKSt6vectorIjSaIjEE4sizeEv(ptr noundef nonnull align 8 dereferenceable(24)) local_unnamed_addr #1 align 2

; Function Attrs: mustprogress nounwind uwtable
declare dso_local void @_ZNSt6vectorIjSaIjEED2Ev(ptr noundef nonnull align 8 dereferenceable(24)) unnamed_addr #1 align 2

; Function Attrs: mustprogress uwtable
define dso_local noundef i32 @_ZNK3sfc7Palette4sizeEv(ptr noundef nonnull align 8 dereferenceable(48) %0) local_unnamed_addr #2 align 2 {
  %2 = alloca %"class.__gnu_cxx::__normal_iterator.20", align 8
  %3 = alloca %"class.__gnu_cxx::__normal_iterator.20", align 8
  %4 = alloca %"class.std::vector", align 8
  %5 = getelementptr inbounds i8, ptr %0, i64 16
  call void @llvm.lifetime.start.p0(i64 8, ptr nonnull %2) #4
  %6 = tail call ptr @_ZNKSt6vectorIN3sfc10SubpaletteESaIS1_EE5beginEv(ptr noundef nonnull align 8 dereferenceable(24) %5) #4
  store ptr %6, ptr %2, align 8
  call void @llvm.lifetime.start.p0(i64 8, ptr nonnull %3) #4
  %7 = tail call ptr @_ZNKSt6vectorIN3sfc10SubpaletteESaIS1_EE3endEv(ptr noundef nonnull align 8 dereferenceable(24) %5) #4
  store ptr %7, ptr %3, align 8
  %8 = call noundef zeroext i1 @_ZN9__gnu_cxxneIPKN3sfc10SubpaletteESt6vectorIS2_SaIS2_EEEEbRKNS_17__normal_iteratorIT_T0_EESD_(ptr noundef nonnull align 8 dereferenceable(8) %2, ptr noundef nonnull align 8 dereferenceable(8) %3) #4
  br i1 %8, label %.lr.ph, label %._crit_edge

._crit_edge:                                      ; preds = %.lr.ph, %1
  %.0.lcssa = phi i32 [ 0, %1 ], [ %12, %.lr.ph ]
  call void @llvm.lifetime.end.p0(i64 8, ptr nonnull %3) #4
  call void @llvm.lifetime.end.p0(i64 8, ptr nonnull %2) #4
  ret i32 %.0.lcssa

.lr.ph:                                           ; preds = %1, %.lr.ph
  %.05 = phi i32 [ %12, %.lr.ph ], [ 0, %1 ]
  %9 = call noundef nonnull align 8 dereferenceable(80) ptr @_ZNK9__gnu_cxx17__normal_iteratorIPKN3sfc10SubpaletteESt6vectorIS2_SaIS2_EEEdeEv(ptr noundef nonnull align 8 dereferenceable(8) %2) #4
  call void @llvm.lifetime.start.p0(i64 24, ptr nonnull %4) #4
  call void @_ZNK3sfc10Subpalette6colorsEv(ptr dead_on_unwind nonnull writable sret(%"class.std::vector") align 8 %4, ptr noundef nonnull align 8 dereferenceable(80) %9)
  %10 = call noundef i64 @_ZNKSt6vectorIjSaIjEE4sizeEv(ptr noundef nonnull align 8 dereferenceable(24) %4) #4
  %11 = trunc i64 %10 to i32
  %12 = add i32 %.05, %11
  call void @_ZNSt6vectorIjSaIjEED2Ev(ptr noundef nonnull align 8 dereferenceable(24) %4) #4
  call void @llvm.lifetime.end.p0(i64 24, ptr nonnull %4) #4
  %13 = call noundef nonnull align 8 dereferenceable(8) ptr @_ZN9__gnu_cxx17__normal_iteratorIPKN3sfc10SubpaletteESt6vectorIS2_SaIS2_EEEppEv(ptr noundef nonnull align 8 dereferenceable(8) %2) #4
  %14 = call noundef zeroext i1 @_ZN9__gnu_cxxneIPKN3sfc10SubpaletteESt6vectorIS2_SaIS2_EEEEbRKNS_17__normal_iteratorIT_T0_EESD_(ptr noundef nonnull align 8 dereferenceable(8) %2, ptr noundef nonnull align 8 dereferenceable(8) %3) #4
  br i1 %14, label %.lr.ph, label %._crit_edge
}

; Function Attrs: mustprogress nounwind uwtable
declare dso_local ptr @_ZNKSt6vectorIN3sfc10SubpaletteESaIS1_EE5beginEv(ptr noundef nonnull align 8 dereferenceable(24)) local_unnamed_addr #1 align 2

; Function Attrs: mustprogress nounwind uwtable
declare dso_local ptr @_ZNKSt6vectorIN3sfc10SubpaletteESaIS1_EE3endEv(ptr noundef nonnull align 8 dereferenceable(24)) local_unnamed_addr #1 align 2

; Function Attrs: inlinehint mustprogress nounwind uwtable
declare dso_local noundef zeroext i1 @_ZN9__gnu_cxxneIPKN3sfc10SubpaletteESt6vectorIS2_SaIS2_EEEEbRKNS_17__normal_iteratorIT_T0_EESD_(ptr noundef nonnull align 8 dereferenceable(8), ptr noundef nonnull align 8 dereferenceable(8)) local_unnamed_addr #3

; Function Attrs: mustprogress nounwind uwtable
declare dso_local noundef nonnull align 8 dereferenceable(80) ptr @_ZNK9__gnu_cxx17__normal_iteratorIPKN3sfc10SubpaletteESt6vectorIS2_SaIS2_EEEdeEv(ptr noundef nonnull align 8 dereferenceable(8)) local_unnamed_addr #1 align 2

; Function Attrs: mustprogress uwtable
declare dso_local void @_ZNK3sfc10Subpalette6colorsEv(ptr dead_on_unwind noalias writable sret(%"class.std::vector") align 8, ptr noundef nonnull align 8 dereferenceable(80)) local_unnamed_addr #2 align 2

; Function Attrs: mustprogress nounwind uwtable
declare dso_local noundef nonnull align 8 dereferenceable(8) ptr @_ZN9__gnu_cxx17__normal_iteratorIPKN3sfc10SubpaletteESt6vectorIS2_SaIS2_EEEppEv(ptr noundef nonnull align 8 dereferenceable(8)) local_unnamed_addr #1 align 2

attributes #0 = { mustprogress nocallback nofree nosync nounwind willreturn memory(argmem: readwrite) }
attributes #1 = { mustprogress 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 = { 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 = { inlinehint mustprogress 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 #4 = { 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)"}


; Effective O3 passes: EarlyCSEPass,GVNPass,GlobalOptPass,InferFunctionAttrsPass,InstCombinePass,InstSimplifyPass,JumpThreadingPass,LCSSAPass,LoopRotatePass,LoopSimplifyPass,LoopUnrollPass,ReassociatePass,SROAPass,SimplifyCFGPass,TailCallElimPass