; LLVM IR from niessner/Matterport :: code/gaps/pkgs/RNBasics/RNType.ll (ZN11RNClassTypeC2EPKc)

; 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.RNClassType = type { i32, ptr }

@.str.1 = external hidden unnamed_addr constant [41 x i8], align 1
@.str.2 = external hidden unnamed_addr constant [11 x i8], align 1
@.str.3 = external hidden unnamed_addr constant [88 x i8], align 1
@_ZL12RNnclass_ids = external hidden global i32, align 4

; Function Attrs: nounwind willreturn memory(read)
declare i64 @strlen(ptr noundef) #0

; Function Attrs: nobuiltin allocsize(0)
declare noundef nonnull ptr @_Znam(i64 noundef) #1

declare void @_Z7RNAbortPKcz(ptr noundef, ...) #2

; Function Attrs: nounwind
declare ptr @strcpy(ptr noundef, ptr noundef) #3

; Function Attrs: mustprogress uwtable
define dso_local void @_ZN11RNClassTypeC2EPKc(ptr noundef nonnull align 8 dereferenceable(16) %0, ptr noundef %1) unnamed_addr #4 align 2 {
  %3 = alloca ptr, align 8
  %4 = alloca ptr, align 8
  store ptr %0, ptr %3, align 8, !tbaa !5
  store ptr %1, ptr %4, align 8, !tbaa !5
  %5 = load ptr, ptr %3, align 8
  %6 = load i32, ptr @_ZL12RNnclass_ids, align 4, !tbaa !9
  %7 = add nsw i32 %6, 1
  store i32 %7, ptr @_ZL12RNnclass_ids, align 4, !tbaa !9
  %8 = getelementptr inbounds %class.RNClassType, ptr %5, i32 0, i32 0
  store i32 %7, ptr %8, align 8, !tbaa !11
  %9 = load ptr, ptr %4, align 8, !tbaa !5
  %10 = icmp ne ptr %9, null
  br i1 %10, label %13, label %11

11:                                               ; preds = %2
  %12 = getelementptr inbounds %class.RNClassType, ptr %5, i32 0, i32 1
  store ptr null, ptr %12, align 8, !tbaa !13
  br label %28

13:                                               ; preds = %2
  %14 = load ptr, ptr %4, align 8, !tbaa !5
  %15 = call i64 @strlen(ptr noundef %14) #5
  %16 = add i64 %15, 1
  %17 = call noalias noundef nonnull ptr @_Znam(i64 noundef %16) #6
  %18 = getelementptr inbounds %class.RNClassType, ptr %5, i32 0, i32 1
  store ptr %17, ptr %18, align 8, !tbaa !13
  %19 = getelementptr inbounds %class.RNClassType, ptr %5, i32 0, i32 1
  %20 = load ptr, ptr %19, align 8, !tbaa !13
  %21 = icmp ne ptr %20, null
  br i1 %21, label %23, label %22

22:                                               ; preds = %13
  call void (ptr, ...) @_Z7RNAbortPKcz(ptr noundef @.str.1, ptr noundef @.str.2, i32 noundef 60, ptr noundef @.str.3)
  br label %23

23:                                               ; preds = %22, %13
  %24 = getelementptr inbounds %class.RNClassType, ptr %5, i32 0, i32 1
  %25 = load ptr, ptr %24, align 8, !tbaa !13
  %26 = load ptr, ptr %4, align 8, !tbaa !5
  %27 = call ptr @strcpy(ptr noundef %25, ptr noundef %26) #7
  br label %28

28:                                               ; preds = %23, %11
  ret void
}

attributes #0 = { nounwind willreturn memory(read) "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 = { nobuiltin allocsize(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 = { "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 "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 = { 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 #5 = { nounwind willreturn memory(read) }
attributes #6 = { builtin allocsize(0) }
attributes #7 = { 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}
!11 = !{!12, !10, i64 0}
!12 = !{!"_ZTS11RNClassType", !10, i64 0, !6, i64 8}
!13 = !{!12, !6, i64 8}


; 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"

@_ZL12RNnclass_ids = external hidden local_unnamed_addr global i32, align 4

; Function Attrs: mustprogress nofree nounwind willreturn memory(argmem: read)
declare i64 @strlen(ptr nocapture noundef) local_unnamed_addr #0

; Function Attrs: nobuiltin allocsize(0)
declare noundef nonnull ptr @_Znam(i64 noundef) local_unnamed_addr #1

; Function Attrs: mustprogress nofree nounwind willreturn memory(argmem: readwrite)
declare ptr @strcpy(ptr noalias noundef returned writeonly, ptr noalias nocapture noundef readonly) local_unnamed_addr #2

; Function Attrs: mustprogress uwtable
define dso_local void @_ZN11RNClassTypeC2EPKc(ptr nocapture noundef nonnull writeonly align 8 dereferenceable(16) %0, ptr noundef readonly %1) unnamed_addr #3 align 2 {
  %3 = load i32, ptr @_ZL12RNnclass_ids, align 4, !tbaa !5
  %4 = add nsw i32 %3, 1
  store i32 %4, ptr @_ZL12RNnclass_ids, align 4, !tbaa !5
  store i32 %4, ptr %0, align 8, !tbaa !9
  %.not = icmp eq ptr %1, null
  br i1 %.not, label %5, label %7

5:                                                ; preds = %2
  %6 = getelementptr inbounds i8, ptr %0, i64 8
  store ptr null, ptr %6, align 8, !tbaa !12
  br label %13

7:                                                ; preds = %2
  %8 = tail call i64 @strlen(ptr noundef nonnull dereferenceable(1) %1) #4
  %9 = add i64 %8, 1
  %10 = tail call noalias noundef nonnull ptr @_Znam(i64 noundef %9) #5
  %11 = getelementptr inbounds i8, ptr %0, i64 8
  store ptr %10, ptr %11, align 8, !tbaa !12
  %12 = tail call ptr @strcpy(ptr noundef nonnull dereferenceable(1) %10, ptr noundef nonnull dereferenceable(1) %1) #6
  br label %13

13:                                               ; preds = %7, %5
  ret void
}

attributes #0 = { mustprogress nofree nounwind willreturn memory(argmem: read) "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 = { nobuiltin allocsize(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 nofree nounwind willreturn memory(argmem: readwrite) "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 = { 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 #4 = { nounwind willreturn memory(read) }
attributes #5 = { builtin allocsize(0) }
attributes #6 = { 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 = !{!"int", !7, i64 0}
!7 = !{!"omnipotent char", !8, i64 0}
!8 = !{!"Simple C++ TBAA"}
!9 = !{!10, !6, i64 0}
!10 = !{!"_ZTS11RNClassType", !6, i64 0, !11, i64 8}
!11 = !{!"any pointer", !7, i64 0}
!12 = !{!10, !11, i64 8}


; Effective O3 passes: EarlyCSEPass,GlobalOptPass,IPSCCPPass,InferFunctionAttrsPass,InstCombinePass,PostOrderFunctionAttrsPass,SROAPass,SimplifyCFGPass,TailCallElimPass