; LLVM IR from kala13x/libxutils :: src/data (str)

; 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"

%struct.XString = type { ptr, i64, i64, i16, i8, i8 }

; Function Attrs: nounwind
declare void @free(ptr noundef) #0

; Function Attrs: nounwind uwtable
define dso_local void @XString_Clear(ptr noundef %0) #1 {
  %2 = alloca ptr, align 8
  store ptr %0, ptr %2, align 8, !tbaa !5
  %3 = load ptr, ptr %2, align 8, !tbaa !5
  %4 = icmp eq ptr %3, null
  br i1 %4, label %5, label %6

5:                                                ; preds = %1
  br label %36

6:                                                ; preds = %1
  %7 = load ptr, ptr %2, align 8, !tbaa !5
  %8 = getelementptr inbounds %struct.XString, ptr %7, i32 0, i32 2
  %9 = load i64, ptr %8, align 8, !tbaa !9
  %10 = icmp ugt i64 %9, 0
  br i1 %10, label %11, label %20

11:                                               ; preds = %6
  %12 = load ptr, ptr %2, align 8, !tbaa !5
  %13 = getelementptr inbounds %struct.XString, ptr %12, i32 0, i32 0
  %14 = load ptr, ptr %13, align 8, !tbaa !13
  %15 = icmp ne ptr %14, null
  br i1 %15, label %16, label %20

16:                                               ; preds = %11
  %17 = load ptr, ptr %2, align 8, !tbaa !5
  %18 = getelementptr inbounds %struct.XString, ptr %17, i32 0, i32 0
  %19 = load ptr, ptr %18, align 8, !tbaa !13
  call void @free(ptr noundef %19) #2
  br label %20

20:                                               ; preds = %16, %11, %6
  %21 = load ptr, ptr %2, align 8, !tbaa !5
  %22 = getelementptr inbounds %struct.XString, ptr %21, i32 0, i32 4
  %23 = load i8, ptr %22, align 2, !tbaa !14
  %24 = icmp ne i8 %23, 0
  br i1 %24, label %25, label %27

25:                                               ; preds = %20
  %26 = load ptr, ptr %2, align 8, !tbaa !5
  call void @free(ptr noundef %26) #2
  br label %36

27:                                               ; preds = %20
  %28 = load ptr, ptr %2, align 8, !tbaa !5
  %29 = getelementptr inbounds %struct.XString, ptr %28, i32 0, i32 3
  store i16 0, ptr %29, align 8, !tbaa !15
  %30 = load ptr, ptr %2, align 8, !tbaa !5
  %31 = getelementptr inbounds %struct.XString, ptr %30, i32 0, i32 1
  store i64 0, ptr %31, align 8, !tbaa !16
  %32 = load ptr, ptr %2, align 8, !tbaa !5
  %33 = getelementptr inbounds %struct.XString, ptr %32, i32 0, i32 2
  store i64 0, ptr %33, align 8, !tbaa !9
  %34 = load ptr, ptr %2, align 8, !tbaa !5
  %35 = getelementptr inbounds %struct.XString, ptr %34, i32 0, i32 0
  store ptr null, ptr %35, align 8, !tbaa !13
  br label %36

36:                                               ; preds = %27, %25, %5
  ret void
}

attributes #0 = { 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 #1 = { 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 }

!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"}
!9 = !{!10, !11, i64 16}
!10 = !{!"XString", !6, i64 0, !11, i64 8, !11, i64 16, !12, i64 24, !7, i64 26, !7, i64 27}
!11 = !{!"long", !7, i64 0}
!12 = !{!"short", !7, i64 0}
!13 = !{!10, !6, i64 0}
!14 = !{!10, !7, i64 26}
!15 = !{!10, !12, i64 24}
!16 = !{!10, !11, 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"

; Function Attrs: mustprogress nounwind willreturn allockind("free") memory(argmem: readwrite, inaccessiblemem: readwrite)
declare void @free(ptr allocptr nocapture noundef) local_unnamed_addr #0

; Function Attrs: mustprogress nounwind willreturn uwtable
define dso_local void @XString_Clear(ptr noundef %0) local_unnamed_addr #1 {
  %2 = icmp eq ptr %0, null
  br i1 %2, label %14, label %3

3:                                                ; preds = %1
  %4 = getelementptr inbounds i8, ptr %0, i64 16
  %5 = load i64, ptr %4, align 8, !tbaa !5
  %.not = icmp eq i64 %5, 0
  br i1 %.not, label %9, label %6

6:                                                ; preds = %3
  %7 = load ptr, ptr %0, align 8, !tbaa !12
  %.not11 = icmp eq ptr %7, null
  br i1 %.not11, label %9, label %8

8:                                                ; preds = %6
  tail call void @free(ptr noundef nonnull %7) #3
  br label %9

9:                                                ; preds = %8, %6, %3
  %10 = getelementptr inbounds i8, ptr %0, i64 26
  %11 = load i8, ptr %10, align 2, !tbaa !13
  %.not12 = icmp eq i8 %11, 0
  br i1 %.not12, label %13, label %12

12:                                               ; preds = %9
  tail call void @free(ptr noundef nonnull %0) #3
  br label %14

13:                                               ; preds = %9
  tail call void @llvm.memset.p0.i64(ptr noundef nonnull align 8 dereferenceable(26) %0, i8 0, i64 26, i1 false)
  br label %14

14:                                               ; preds = %1, %13, %12
  ret void
}

; Function Attrs: nocallback nofree nounwind willreturn memory(argmem: write)
declare void @llvm.memset.p0.i64(ptr nocapture writeonly, i8, i64, i1 immarg) #2

attributes #0 = { mustprogress nounwind willreturn allockind("free") memory(argmem: readwrite, inaccessiblemem: readwrite) "alloc-family"="malloc" "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 willreturn 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 = { nocallback nofree nounwind willreturn memory(argmem: write) }
attributes #3 = { 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, !10, i64 16}
!6 = !{!"XString", !7, i64 0, !10, i64 8, !10, i64 16, !11, i64 24, !8, i64 26, !8, i64 27}
!7 = !{!"any pointer", !8, i64 0}
!8 = !{!"omnipotent char", !9, i64 0}
!9 = !{!"Simple C/C++ TBAA"}
!10 = !{!"long", !8, i64 0}
!11 = !{!"short", !8, i64 0}
!12 = !{!6, !7, i64 0}
!13 = !{!6, !8, i64 26}


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