; LLVM IR from jspd-group/pegit :: src (main)

; 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: nounwind uwtable
define dso_local zeroext i1 @create_tag(i32 noundef %0, ptr noundef %1) #0 {
  %3 = alloca i1, align 1
  %4 = alloca i32, align 4
  %5 = alloca ptr, align 8
  store i32 %0, ptr %4, align 4, !tbaa !5
  store ptr %1, ptr %5, align 8, !tbaa !9
  %6 = load i32, ptr %4, align 4, !tbaa !5
  %7 = icmp eq i32 %6, 1
  br i1 %7, label %8, label %9

8:                                                ; preds = %2
  call void (...) @list_tags()
  store i1 true, ptr %3, align 1
  br label %28

9:                                                ; preds = %2
  %10 = load i32, ptr %4, align 4, !tbaa !5
  %11 = icmp eq i32 %10, 2
  br i1 %11, label %12, label %16

12:                                               ; preds = %9
  %13 = load ptr, ptr %5, align 8, !tbaa !9
  %14 = getelementptr inbounds ptr, ptr %13, i64 1
  %15 = load ptr, ptr %14, align 8, !tbaa !9
  call void @set_tag(ptr noundef null, i64 noundef 0, ptr noundef %15)
  br label %27

16:                                               ; preds = %9
  %17 = load ptr, ptr %5, align 8, !tbaa !9
  %18 = getelementptr inbounds ptr, ptr %17, i64 1
  %19 = load ptr, ptr %18, align 8, !tbaa !9
  %20 = load ptr, ptr %5, align 8, !tbaa !9
  %21 = getelementptr inbounds ptr, ptr %20, i64 1
  %22 = load ptr, ptr %21, align 8, !tbaa !9
  %23 = call i64 @strlen(ptr noundef %22) #3
  %24 = load ptr, ptr %5, align 8, !tbaa !9
  %25 = getelementptr inbounds ptr, ptr %24, i64 2
  %26 = load ptr, ptr %25, align 8, !tbaa !9
  call void @set_tag(ptr noundef %19, i64 noundef %23, ptr noundef %26)
  br label %27

27:                                               ; preds = %16, %12
  store i1 true, ptr %3, align 1
  br label %28

28:                                               ; preds = %27, %8
  %29 = load i1, ptr %3, align 1
  ret i1 %29
}

declare void @list_tags(...) #1

declare void @set_tag(ptr noundef, i64 noundef, ptr noundef) #1

; Function Attrs: nounwind willreturn memory(read)
declare i64 @strlen(ptr noundef) #2

attributes #0 = { 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 = { "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) "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, !6, i64 0}
!6 = !{!"int", !7, i64 0}
!7 = !{!"omnipotent char", !8, i64 0}
!8 = !{!"Simple C/C++ TBAA"}
!9 = !{!10, !10, i64 0}
!10 = !{!"any pointer", !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: nounwind uwtable
define dso_local noundef zeroext i1 @create_tag(i32 noundef %0, ptr nocapture noundef readonly %1) local_unnamed_addr #0 {
  switch i32 %0, label %7 [
    i32 1, label %3
    i32 2, label %4
  ]

3:                                                ; preds = %2
  tail call void (...) @list_tags() #3
  br label %13

4:                                                ; preds = %2
  %5 = getelementptr inbounds i8, ptr %1, i64 8
  %6 = load ptr, ptr %5, align 8, !tbaa !5
  tail call void @set_tag(ptr noundef null, i64 noundef 0, ptr noundef %6) #3
  br label %13

7:                                                ; preds = %2
  %8 = getelementptr inbounds i8, ptr %1, i64 8
  %9 = load ptr, ptr %8, align 8, !tbaa !5
  %10 = tail call i64 @strlen(ptr noundef nonnull dereferenceable(1) %9) #4
  %11 = getelementptr inbounds i8, ptr %1, i64 16
  %12 = load ptr, ptr %11, align 8, !tbaa !5
  tail call void @set_tag(ptr noundef %9, i64 noundef %10, ptr noundef %12) #3
  br label %13

13:                                               ; preds = %4, %7, %3
  ret i1 true
}

declare void @list_tags(...) local_unnamed_addr #1

declare void @set_tag(ptr noundef, i64 noundef, ptr noundef) local_unnamed_addr #1

; Function Attrs: mustprogress nofree nounwind willreturn memory(argmem: read)
declare i64 @strlen(ptr nocapture noundef) local_unnamed_addr #2

attributes #0 = { 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 = { "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: 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 #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/C++ TBAA"}


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