; LLVM IR from SSBMTonberry/pocketlzma :: ref_spec/lzma1900/CPP/Common/CommandLineParser.ll (ZN18NCommandLineParser7CParserD2Ev)

; 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.NCommandLineParser::CParser" = type { ptr, %class.CObjectVector, i32, %class.AString, %class.UString }
%class.CObjectVector = type { %class.CRecordVector }
%class.CRecordVector = type { ptr, i32, i32 }
%class.AString = type { ptr, i32, i32 }
%class.UString = type { ptr, i32, i32 }
%"struct.NCommandLineParser::CSwitchResult" = type { i8, i8, i32, %class.CObjectVector }

; Function Attrs: mustprogress nounwind uwtable
declare dso_local void @_ZN7UStringD2Ev(ptr noundef nonnull align 8 dereferenceable(16)) unnamed_addr #0 align 2

; Function Attrs: mustprogress nounwind uwtable
declare dso_local void @_ZN7AStringD2Ev(ptr noundef nonnull align 8 dereferenceable(16)) unnamed_addr #0 align 2

; Function Attrs: mustprogress nounwind uwtable
declare dso_local void @_ZN13CObjectVectorI7UStringED2Ev(ptr noundef nonnull align 8 dereferenceable(16)) unnamed_addr #0 align 2

; Function Attrs: mustprogress nounwind uwtable
define dso_local void @_ZN18NCommandLineParser7CParserD2Ev(ptr noundef nonnull align 8 dereferenceable(64) %0) unnamed_addr #0 align 2 {
  %2 = alloca ptr, align 8
  store ptr %0, ptr %2, align 8, !tbaa !5
  %3 = load ptr, ptr %2, align 8
  %4 = getelementptr inbounds %"class.NCommandLineParser::CParser", ptr %3, i32 0, i32 0
  %5 = load ptr, ptr %4, align 8, !tbaa !9
  %6 = icmp eq ptr %5, null
  br i1 %6, label %19, label %7

7:                                                ; preds = %1
  %8 = getelementptr inbounds i8, ptr %5, i64 -8
  %9 = load i64, ptr %8, align 8
  %10 = getelementptr inbounds %"struct.NCommandLineParser::CSwitchResult", ptr %5, i64 %9
  %11 = icmp eq ptr %5, %10
  br i1 %11, label %16, label %12

12:                                               ; preds = %12, %7
  %13 = phi ptr [ %10, %7 ], [ %14, %12 ]
  %14 = getelementptr inbounds %"struct.NCommandLineParser::CSwitchResult", ptr %13, i64 -1
  call void @_ZN18NCommandLineParser13CSwitchResultD2Ev(ptr noundef nonnull align 8 dereferenceable(24) %14) #3
  %15 = icmp eq ptr %14, %5
  br i1 %15, label %16, label %12

16:                                               ; preds = %12, %7
  %17 = mul i64 24, %9
  %18 = add i64 %17, 8
  call void @_ZdaPvm(ptr noundef %8, i64 noundef %18) #4
  br label %19

19:                                               ; preds = %16, %1
  %20 = getelementptr inbounds %"class.NCommandLineParser::CParser", ptr %3, i32 0, i32 4
  call void @_ZN7UStringD2Ev(ptr noundef nonnull align 8 dereferenceable(16) %20) #3
  %21 = getelementptr inbounds %"class.NCommandLineParser::CParser", ptr %3, i32 0, i32 3
  call void @_ZN7AStringD2Ev(ptr noundef nonnull align 8 dereferenceable(16) %21) #3
  %22 = getelementptr inbounds %"class.NCommandLineParser::CParser", ptr %3, i32 0, i32 1
  call void @_ZN13CObjectVectorI7UStringED2Ev(ptr noundef nonnull align 8 dereferenceable(16) %22) #3
  ret void
}

; Function Attrs: inlinehint mustprogress nounwind uwtable
declare dso_local void @_ZN18NCommandLineParser13CSwitchResultD2Ev(ptr noundef nonnull align 8 dereferenceable(24)) unnamed_addr #1 align 2

; Function Attrs: nobuiltin nounwind
declare void @_ZdaPvm(ptr noundef, i64 noundef) #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 = { 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 #2 = { nobuiltin 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 }
attributes #4 = { builtin 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, !6, i64 0}
!10 = !{!"_ZTSN18NCommandLineParser7CParserE", !6, i64 0, !11, i64 8, !13, i64 24, !14, i64 32, !15, i64 48}
!11 = !{!"_ZTS13CObjectVectorI7UStringE", !12, i64 0}
!12 = !{!"_ZTS13CRecordVectorIPvE", !6, i64 0, !13, i64 8, !13, i64 12}
!13 = !{!"int", !7, i64 0}
!14 = !{!"_ZTS7AString", !6, i64 0, !13, i64 8, !13, i64 12}
!15 = !{!"_ZTS7UString", !6, i64 0, !13, i64 8, !13, i64 12}


; 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.NCommandLineParser::CSwitchResult" = type { i8, i8, i32, %class.CObjectVector }
%class.CObjectVector = type { %class.CRecordVector }
%class.CRecordVector = type { ptr, i32, i32 }

; Function Attrs: mustprogress nounwind uwtable
declare dso_local void @_ZN7UStringD2Ev(ptr noundef nonnull align 8 dereferenceable(16)) unnamed_addr #0 align 2

; Function Attrs: mustprogress nounwind uwtable
declare dso_local void @_ZN7AStringD2Ev(ptr noundef nonnull align 8 dereferenceable(16)) unnamed_addr #0 align 2

; Function Attrs: mustprogress nounwind uwtable
declare dso_local void @_ZN13CObjectVectorI7UStringED2Ev(ptr noundef nonnull align 8 dereferenceable(16)) unnamed_addr #0 align 2

; Function Attrs: mustprogress nounwind uwtable
define dso_local void @_ZN18NCommandLineParser7CParserD2Ev(ptr noundef nonnull align 8 dereferenceable(64) %0) unnamed_addr #0 align 2 {
  %2 = load ptr, ptr %0, align 8, !tbaa !5
  %3 = icmp eq ptr %2, null
  br i1 %3, label %14, label %4

4:                                                ; preds = %1
  %5 = getelementptr inbounds i8, ptr %2, i64 -8
  %6 = load i64, ptr %5, align 8
  %7 = icmp eq i64 %6, 0
  br i1 %7, label %.loopexit, label %.preheader.preheader

.preheader.preheader:                             ; preds = %4
  %8 = getelementptr inbounds %"struct.NCommandLineParser::CSwitchResult", ptr %2, i64 %6
  br label %.preheader

.preheader:                                       ; preds = %.preheader.preheader, %.preheader
  %9 = phi ptr [ %10, %.preheader ], [ %8, %.preheader.preheader ]
  %10 = getelementptr inbounds i8, ptr %9, i64 -24
  tail call void @_ZN18NCommandLineParser13CSwitchResultD2Ev(ptr noundef nonnull align 8 dereferenceable(24) %10) #3
  %11 = icmp eq ptr %10, %2
  br i1 %11, label %.loopexit, label %.preheader

.loopexit:                                        ; preds = %.preheader, %4
  %12 = mul i64 %6, 24
  %13 = add i64 %12, 8
  tail call void @_ZdaPvm(ptr noundef nonnull %5, i64 noundef %13) #4
  br label %14

14:                                               ; preds = %.loopexit, %1
  %15 = getelementptr inbounds i8, ptr %0, i64 48
  tail call void @_ZN7UStringD2Ev(ptr noundef nonnull align 8 dereferenceable(16) %15) #3
  %16 = getelementptr inbounds i8, ptr %0, i64 32
  tail call void @_ZN7AStringD2Ev(ptr noundef nonnull align 8 dereferenceable(16) %16) #3
  %17 = getelementptr inbounds i8, ptr %0, i64 8
  tail call void @_ZN13CObjectVectorI7UStringED2Ev(ptr noundef nonnull align 8 dereferenceable(16) %17) #3
  ret void
}

; Function Attrs: inlinehint mustprogress nounwind uwtable
declare dso_local void @_ZN18NCommandLineParser13CSwitchResultD2Ev(ptr noundef nonnull align 8 dereferenceable(24)) unnamed_addr #1 align 2

; Function Attrs: nobuiltin nounwind
declare void @_ZdaPvm(ptr noundef, i64 noundef) local_unnamed_addr #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 = { 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 #2 = { nobuiltin 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 }
attributes #4 = { builtin 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 = !{!"_ZTSN18NCommandLineParser7CParserE", !7, i64 0, !10, i64 8, !12, i64 24, !13, i64 32, !14, i64 48}
!7 = !{!"any pointer", !8, i64 0}
!8 = !{!"omnipotent char", !9, i64 0}
!9 = !{!"Simple C++ TBAA"}
!10 = !{!"_ZTS13CObjectVectorI7UStringE", !11, i64 0}
!11 = !{!"_ZTS13CRecordVectorIPvE", !7, i64 0, !12, i64 8, !12, i64 12}
!12 = !{!"int", !8, i64 0}
!13 = !{!"_ZTS7AString", !7, i64 0, !12, i64 8, !12, i64 12}
!14 = !{!"_ZTS7UString", !7, i64 0, !12, i64 8, !12, i64 12}


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