; LLVM IR from vczh/herodb :: Kernel/Source/Vlpp.ll (ZNK2vl5regex10RegexTokeneqEPKw)

; 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.vl::regex::RegexToken" = type { i64, i64, i64, ptr, i64, i8, i64, i64, i64, i64 }

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

; Function Attrs: nounwind willreturn memory(read)
declare i32 @wcsncmp(ptr noundef, ptr noundef, i64 noundef) #0

; Function Attrs: mustprogress nounwind uwtable
define dso_local noundef zeroext i1 @_ZNK2vl5regex10RegexTokeneqEPKw(ptr noundef nonnull align 8 dereferenceable(80) %0, ptr noundef %1) #1 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 ptr, ptr %4, align 8, !tbaa !5
  %7 = call i64 @wcslen(ptr noundef %6) #2
  %8 = getelementptr inbounds %"class.vl::regex::RegexToken", ptr %5, i32 0, i32 1
  %9 = load i64, ptr %8, align 8, !tbaa !9
  %10 = icmp eq i64 %7, %9
  br i1 %10, label %11, label %19

11:                                               ; preds = %2
  %12 = getelementptr inbounds %"class.vl::regex::RegexToken", ptr %5, i32 0, i32 3
  %13 = load ptr, ptr %12, align 8, !tbaa !13
  %14 = load ptr, ptr %4, align 8, !tbaa !5
  %15 = getelementptr inbounds %"class.vl::regex::RegexToken", ptr %5, i32 0, i32 1
  %16 = load i64, ptr %15, align 8, !tbaa !9
  %17 = call i32 @wcsncmp(ptr noundef %13, ptr noundef %14, i64 noundef %16) #2
  %18 = icmp eq i32 %17, 0
  br label %19

19:                                               ; preds = %11, %2
  %20 = phi i1 [ false, %2 ], [ %18, %11 ]
  ret i1 %20
}

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 = { 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 = { nounwind willreturn memory(read) }

!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 8}
!10 = !{!"_ZTSN2vl5regex10RegexTokenE", !11, i64 0, !11, i64 8, !11, i64 16, !6, i64 24, !11, i64 32, !12, i64 40, !11, i64 48, !11, i64 56, !11, i64 64, !11, i64 72}
!11 = !{!"long", !7, i64 0}
!12 = !{!"bool", !7, i64 0}
!13 = !{!10, !6, i64 24}


; 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 nofree nounwind willreturn memory(argmem: read)
declare i64 @wcslen(ptr nocapture noundef) local_unnamed_addr #0

; Function Attrs: mustprogress nofree nounwind willreturn memory(read)
declare i32 @wcsncmp(ptr noundef, ptr noundef, i64 noundef) local_unnamed_addr #1

; Function Attrs: mustprogress nofree nounwind willreturn memory(read) uwtable
define dso_local noundef zeroext i1 @_ZNK2vl5regex10RegexTokeneqEPKw(ptr nocapture noundef nonnull readonly align 8 dereferenceable(80) %0, ptr noundef readonly %1) local_unnamed_addr #2 align 2 {
  %3 = tail call i64 @wcslen(ptr noundef %1) #3
  %4 = getelementptr inbounds i8, ptr %0, i64 8
  %5 = load i64, ptr %4, align 8, !tbaa !5
  %6 = icmp eq i64 %3, %5
  br i1 %6, label %7, label %12

7:                                                ; preds = %2
  %8 = getelementptr inbounds i8, ptr %0, i64 24
  %9 = load ptr, ptr %8, align 8, !tbaa !12
  %10 = tail call i32 @wcsncmp(ptr noundef %9, ptr noundef %1, i64 noundef %3) #3
  %11 = icmp eq i32 %10, 0
  br label %12

12:                                               ; preds = %7, %2
  %13 = phi i1 [ false, %2 ], [ %11, %7 ]
  ret i1 %13
}

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 = { mustprogress nofree 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 #2 = { mustprogress nofree nounwind willreturn memory(read) 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 = { nounwind willreturn memory(read) }

!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 8}
!6 = !{!"_ZTSN2vl5regex10RegexTokenE", !7, i64 0, !7, i64 8, !7, i64 16, !10, i64 24, !7, i64 32, !11, i64 40, !7, i64 48, !7, i64 56, !7, i64 64, !7, i64 72}
!7 = !{!"long", !8, i64 0}
!8 = !{!"omnipotent char", !9, i64 0}
!9 = !{!"Simple C++ TBAA"}
!10 = !{!"any pointer", !8, i64 0}
!11 = !{!"bool", !8, i64 0}
!12 = !{!6, !10, i64 24}


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