; LLVM IR from vczh/herodb :: Kernel/Source/Vlpp.ll (ZN2vl14regex_internal7IsCharsERPKwS2_Rw)

; 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"

; 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: nounwind willreturn memory(read)
declare ptr @wcschr(ptr noundef, i32 noundef signext) #1

; Function Attrs: mustprogress nounwind uwtable
define dso_local noundef zeroext i1 @_ZN2vl14regex_internal7IsCharsERPKwS2_Rw(ptr noundef nonnull align 8 dereferenceable(8) %0, ptr noundef %1, ptr noundef nonnull align 4 dereferenceable(4) %2) #2 {
  %4 = alloca i1, align 1
  %5 = alloca ptr, align 8
  %6 = alloca ptr, align 8
  %7 = alloca ptr, align 8
  %8 = alloca ptr, align 8
  %9 = alloca i32, align 4
  store ptr %0, ptr %5, align 8, !tbaa !5
  store ptr %1, ptr %6, align 8, !tbaa !5
  store ptr %2, ptr %7, align 8, !tbaa !5
  call void @llvm.lifetime.start.p0(i64 8, ptr %8) #3
  %10 = load ptr, ptr %6, align 8, !tbaa !5
  %11 = load ptr, ptr %5, align 8, !tbaa !5
  %12 = load ptr, ptr %11, align 8, !tbaa !5
  %13 = load i32, ptr %12, align 4, !tbaa !9
  %14 = call ptr @wcschr(ptr noundef %10, i32 noundef signext %13) #4
  store ptr %14, ptr %8, align 8, !tbaa !5
  %15 = load ptr, ptr %8, align 8, !tbaa !5
  %16 = icmp ne ptr %15, null
  br i1 %16, label %17, label %23

17:                                               ; preds = %3
  %18 = load ptr, ptr %5, align 8, !tbaa !5
  %19 = load ptr, ptr %18, align 8, !tbaa !5
  %20 = getelementptr inbounds i32, ptr %19, i32 1
  store ptr %20, ptr %18, align 8, !tbaa !5
  %21 = load i32, ptr %19, align 4, !tbaa !9
  %22 = load ptr, ptr %7, align 8, !tbaa !5
  store i32 %21, ptr %22, align 4, !tbaa !9
  store i1 true, ptr %4, align 1
  store i32 1, ptr %9, align 4
  br label %24

23:                                               ; preds = %3
  store i1 false, ptr %4, align 1
  store i32 1, ptr %9, align 4
  br label %24

24:                                               ; preds = %23, %17
  call void @llvm.lifetime.end.p0(i64 8, ptr %8) #3
  %25 = load i1, ptr %4, align 1
  ret i1 %25
}

attributes #0 = { nocallback nofree nosync nounwind willreturn memory(argmem: readwrite) }
attributes #1 = { 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 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 #3 = { nounwind }
attributes #4 = { 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, !10, i64 0}
!10 = !{!"wchar_t", !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"

; Function Attrs: mustprogress nofree nounwind willreturn memory(read)
declare ptr @wcschr(ptr noundef, i32 noundef signext) local_unnamed_addr #0

; Function Attrs: mustprogress nofree nounwind willreturn memory(read, argmem: readwrite) uwtable
define dso_local noundef zeroext i1 @_ZN2vl14regex_internal7IsCharsERPKwS2_Rw(ptr nocapture noundef nonnull align 8 dereferenceable(8) %0, ptr noundef readonly %1, ptr nocapture noundef nonnull writeonly align 4 dereferenceable(4) %2) local_unnamed_addr #1 {
  %4 = load ptr, ptr %0, align 8, !tbaa !5
  %5 = load i32, ptr %4, align 4, !tbaa !9
  %6 = tail call ptr @wcschr(ptr noundef %1, i32 noundef signext %5) #2
  %.not = icmp ne ptr %6, null
  br i1 %.not, label %7, label %9

7:                                                ; preds = %3
  %8 = getelementptr inbounds i8, ptr %4, i64 4
  store ptr %8, ptr %0, align 8, !tbaa !5
  store i32 %5, ptr %2, align 4, !tbaa !9
  br label %9

9:                                                ; preds = %3, %7
  ret i1 %.not
}

attributes #0 = { 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 #1 = { mustprogress nofree nounwind willreturn memory(read, argmem: readwrite) 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, !10, i64 0}
!10 = !{!"wchar_t", !7, i64 0}


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