; LLVM IR from Xayah-Hina/branchfrac :: Demos/Visualization/Shader.ll (ZN3PBD6ShaderC2Ev)

; 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.PBD::Shader" = type <{ i8, [3 x i8], i32, %"class.std::map", %"class.std::map", [3 x i32], [4 x i8] }>
%"class.std::map" = type { %"class.std::_Rb_tree" }
%"class.std::_Rb_tree" = type { %"struct.std::_Rb_tree<std::__cxx11::basic_string<char>, std::pair<const std::__cxx11::basic_string<char>, unsigned int>, std::_Select1st<std::pair<const std::__cxx11::basic_string<char>, unsigned int>>, std::less<std::__cxx11::basic_string<char>>>::_Rb_tree_impl" }
%"struct.std::_Rb_tree<std::__cxx11::basic_string<char>, std::pair<const std::__cxx11::basic_string<char>, unsigned int>, std::_Select1st<std::pair<const std::__cxx11::basic_string<char>, unsigned int>>, std::less<std::__cxx11::basic_string<char>>>::_Rb_tree_impl" = type { [8 x i8], %"struct.std::_Rb_tree_header" }
%"struct.std::_Rb_tree_header" = type { %"struct.std::_Rb_tree_node_base", i64 }
%"struct.std::_Rb_tree_node_base" = type { i32, ptr, ptr, ptr }

; Function Attrs: mustprogress nounwind uwtable
define dso_local void @_ZN3PBD6ShaderC2Ev(ptr noundef nonnull align 8 dereferenceable(116) %0) unnamed_addr #0 align 2 {
  %2 = alloca ptr, align 8
  %3 = alloca i8, align 1
  store ptr %0, ptr %2, align 8, !tbaa !5
  %4 = load ptr, ptr %2, align 8
  %5 = getelementptr inbounds %"class.PBD::Shader", ptr %4, i32 0, i32 3
  call void @_ZNSt3mapINSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEEEjSt4lessIS5_ESaISt4pairIKS5_jEEEC2Ev(ptr noundef nonnull align 8 dereferenceable(48) %5) #2
  %6 = getelementptr inbounds %"class.PBD::Shader", ptr %4, i32 0, i32 4
  call void @_ZNSt3mapINSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEEEjSt4lessIS5_ESaISt4pairIKS5_jEEEC2Ev(ptr noundef nonnull align 8 dereferenceable(48) %6) #2
  %7 = getelementptr inbounds %"class.PBD::Shader", ptr %4, i32 0, i32 0
  store i8 0, ptr %7, align 8, !tbaa !9
  call void @llvm.lifetime.start.p0(i64 1, ptr %3) #2
  store i8 0, ptr %3, align 1, !tbaa !22
  br label %8

8:                                                ; preds = %18, %1
  %9 = load i8, ptr %3, align 1, !tbaa !22
  %10 = zext i8 %9 to i32
  %11 = icmp slt i32 %10, 3
  br i1 %11, label %13, label %12

12:                                               ; preds = %8
  call void @llvm.lifetime.end.p0(i64 1, ptr %3) #2
  br label %21

13:                                               ; preds = %8
  %14 = getelementptr inbounds %"class.PBD::Shader", ptr %4, i32 0, i32 5
  %15 = load i8, ptr %3, align 1, !tbaa !22
  %16 = zext i8 %15 to i64
  %17 = getelementptr inbounds [3 x i32], ptr %14, i64 0, i64 %16
  store i32 0, ptr %17, align 4, !tbaa !23
  br label %18

18:                                               ; preds = %13
  %19 = load i8, ptr %3, align 1, !tbaa !22
  %20 = add i8 %19, 1
  store i8 %20, ptr %3, align 1, !tbaa !22
  br label %8, !llvm.loop !24

21:                                               ; preds = %12
  %22 = getelementptr inbounds %"class.PBD::Shader", ptr %4, i32 0, i32 3
  call void @_ZNSt3mapINSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEEEjSt4lessIS5_ESaISt4pairIKS5_jEEE5clearEv(ptr noundef nonnull align 8 dereferenceable(48) %22) #2
  %23 = getelementptr inbounds %"class.PBD::Shader", ptr %4, i32 0, i32 4
  call void @_ZNSt3mapINSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEEEjSt4lessIS5_ESaISt4pairIKS5_jEEE5clearEv(ptr noundef nonnull align 8 dereferenceable(48) %23) #2
  ret void
}

; Function Attrs: mustprogress nounwind uwtable
declare dso_local void @_ZNSt3mapINSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEEEjSt4lessIS5_ESaISt4pairIKS5_jEEEC2Ev(ptr noundef nonnull align 8 dereferenceable(48)) unnamed_addr #0 align 2

; Function Attrs: nocallback nofree nosync nounwind willreturn memory(argmem: readwrite)
declare void @llvm.lifetime.start.p0(i64 immarg, ptr nocapture) #1

; Function Attrs: nocallback nofree nosync nounwind willreturn memory(argmem: readwrite)
declare void @llvm.lifetime.end.p0(i64 immarg, ptr nocapture) #1

; Function Attrs: mustprogress nounwind uwtable
declare dso_local void @_ZNSt3mapINSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEEEjSt4lessIS5_ESaISt4pairIKS5_jEEE5clearEv(ptr noundef nonnull align 8 dereferenceable(48)) #0 align 2

attributes #0 = { 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 #1 = { nocallback nofree nosync nounwind willreturn memory(argmem: readwrite) }
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, !6, i64 0}
!6 = !{!"any pointer", !7, i64 0}
!7 = !{!"omnipotent char", !8, i64 0}
!8 = !{!"Simple C++ TBAA"}
!9 = !{!10, !11, i64 0}
!10 = !{!"_ZTSN3PBD6ShaderE", !11, i64 0, !12, i64 4, !13, i64 8, !13, i64 56, !7, i64 104}
!11 = !{!"bool", !7, i64 0}
!12 = !{!"int", !7, i64 0}
!13 = !{!"_ZTSSt3mapINSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEEEjSt4lessIS5_ESaISt4pairIKS5_jEEE", !14, i64 0}
!14 = !{!"_ZTSSt8_Rb_treeINSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEEESt4pairIKS5_jESt10_Select1stIS8_ESt4lessIS5_ESaIS8_EE", !15, i64 0}
!15 = !{!"_ZTSNSt8_Rb_treeINSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEEESt4pairIKS5_jESt10_Select1stIS8_ESt4lessIS5_ESaIS8_EE13_Rb_tree_implISC_Lb1EEE", !16, i64 0, !18, i64 8}
!16 = !{!"_ZTSSt20_Rb_tree_key_compareISt4lessINSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEEEEE", !17, i64 0}
!17 = !{!"_ZTSSt4lessINSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEEEE"}
!18 = !{!"_ZTSSt15_Rb_tree_header", !19, i64 0, !21, i64 32}
!19 = !{!"_ZTSSt18_Rb_tree_node_base", !20, i64 0, !6, i64 8, !6, i64 16, !6, i64 24}
!20 = !{!"_ZTSSt14_Rb_tree_color", !7, i64 0}
!21 = !{!"long", !7, i64 0}
!22 = !{!7, !7, i64 0}
!23 = !{!12, !12, i64 0}
!24 = distinct !{!24, !25}
!25 = !{!"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: mustprogress nounwind uwtable
define dso_local void @_ZN3PBD6ShaderC2Ev(ptr noundef nonnull align 8 dereferenceable(116) %0) unnamed_addr #0 align 2 {
  %2 = getelementptr inbounds i8, ptr %0, i64 8
  tail call void @_ZNSt3mapINSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEEEjSt4lessIS5_ESaISt4pairIKS5_jEEEC2Ev(ptr noundef nonnull align 8 dereferenceable(48) %2) #2
  %3 = getelementptr inbounds i8, ptr %0, i64 56
  tail call void @_ZNSt3mapINSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEEEjSt4lessIS5_ESaISt4pairIKS5_jEEEC2Ev(ptr noundef nonnull align 8 dereferenceable(48) %3) #2
  store i8 0, ptr %0, align 8, !tbaa !5
  %4 = getelementptr inbounds i8, ptr %0, i64 104
  tail call void @llvm.memset.p0.i64(ptr noundef nonnull align 8 dereferenceable(12) %4, i8 0, i64 12, i1 false), !tbaa !21
  tail call void @_ZNSt3mapINSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEEEjSt4lessIS5_ESaISt4pairIKS5_jEEE5clearEv(ptr noundef nonnull align 8 dereferenceable(48) %2) #2
  tail call void @_ZNSt3mapINSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEEEjSt4lessIS5_ESaISt4pairIKS5_jEEE5clearEv(ptr noundef nonnull align 8 dereferenceable(48) %3) #2
  ret void
}

; Function Attrs: mustprogress nounwind uwtable
declare dso_local void @_ZNSt3mapINSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEEEjSt4lessIS5_ESaISt4pairIKS5_jEEEC2Ev(ptr noundef nonnull align 8 dereferenceable(48)) unnamed_addr #0 align 2

; Function Attrs: mustprogress nounwind uwtable
declare dso_local void @_ZNSt3mapINSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEEEjSt4lessIS5_ESaISt4pairIKS5_jEEE5clearEv(ptr noundef nonnull align 8 dereferenceable(48)) local_unnamed_addr #0 align 2

; Function Attrs: nocallback nofree nounwind willreturn memory(argmem: write)
declare void @llvm.memset.p0.i64(ptr nocapture writeonly, i8, i64, i1 immarg) #1

attributes #0 = { 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 #1 = { nocallback nofree nounwind willreturn memory(argmem: write) }
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 = !{!"_ZTSN3PBD6ShaderE", !7, i64 0, !10, i64 4, !11, i64 8, !11, i64 56, !8, i64 104}
!7 = !{!"bool", !8, i64 0}
!8 = !{!"omnipotent char", !9, i64 0}
!9 = !{!"Simple C++ TBAA"}
!10 = !{!"int", !8, i64 0}
!11 = !{!"_ZTSSt3mapINSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEEEjSt4lessIS5_ESaISt4pairIKS5_jEEE", !12, i64 0}
!12 = !{!"_ZTSSt8_Rb_treeINSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEEESt4pairIKS5_jESt10_Select1stIS8_ESt4lessIS5_ESaIS8_EE", !13, i64 0}
!13 = !{!"_ZTSNSt8_Rb_treeINSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEEESt4pairIKS5_jESt10_Select1stIS8_ESt4lessIS5_ESaIS8_EE13_Rb_tree_implISC_Lb1EEE", !14, i64 0, !16, i64 8}
!14 = !{!"_ZTSSt20_Rb_tree_key_compareISt4lessINSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEEEEE", !15, i64 0}
!15 = !{!"_ZTSSt4lessINSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEEEE"}
!16 = !{!"_ZTSSt15_Rb_tree_header", !17, i64 0, !20, i64 32}
!17 = !{!"_ZTSSt18_Rb_tree_node_base", !18, i64 0, !19, i64 8, !19, i64 16, !19, i64 24}
!18 = !{!"_ZTSSt14_Rb_tree_color", !8, i64 0}
!19 = !{!"any pointer", !8, i64 0}
!20 = !{!"long", !8, i64 0}
!21 = !{!10, !10, i64 0}


; Effective O3 passes: EarlyCSEPass,GVNPass,GlobalOptPass,IndVarSimplifyPass,InferFunctionAttrsPass,InstCombinePass,LICMPass,LoopIdiomRecognizePass,LoopRotatePass,SROAPass,SimplifyCFGPass,TailCallElimPass