; LLVM IR from PaulBatchelor/sndkit :: lil (lil)

; 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._lil_value_t = type { i64, ptr }

; 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 uwtable
define dso_local i32 @lil_append_char(ptr noundef %0, i8 noundef signext %1) #1 {
  %3 = alloca i32, align 4
  %4 = alloca ptr, align 8
  %5 = alloca i8, align 1
  %6 = alloca ptr, align 8
  %7 = alloca i32, align 4
  store ptr %0, ptr %4, align 8, !tbaa !5
  store i8 %1, ptr %5, align 1, !tbaa !9
  call void @llvm.lifetime.start.p0(i64 8, ptr %6) #3
  %8 = load ptr, ptr %4, align 8, !tbaa !5
  %9 = getelementptr inbounds %struct._lil_value_t, ptr %8, i32 0, i32 1
  %10 = load ptr, ptr %9, align 8, !tbaa !10
  %11 = load ptr, ptr %4, align 8, !tbaa !5
  %12 = getelementptr inbounds %struct._lil_value_t, ptr %11, i32 0, i32 0
  %13 = load i64, ptr %12, align 8, !tbaa !13
  %14 = add i64 %13, 2
  %15 = call ptr @realloc(ptr noundef %10, i64 noundef %14) #4
  store ptr %15, ptr %6, align 8, !tbaa !5
  %16 = load ptr, ptr %6, align 8, !tbaa !5
  %17 = icmp ne ptr %16, null
  br i1 %17, label %19, label %18

18:                                               ; preds = %2
  store i32 0, ptr %3, align 4
  store i32 1, ptr %7, align 4
  br label %35

19:                                               ; preds = %2
  %20 = load i8, ptr %5, align 1, !tbaa !9
  %21 = load ptr, ptr %6, align 8, !tbaa !5
  %22 = load ptr, ptr %4, align 8, !tbaa !5
  %23 = getelementptr inbounds %struct._lil_value_t, ptr %22, i32 0, i32 0
  %24 = load i64, ptr %23, align 8, !tbaa !13
  %25 = add i64 %24, 1
  store i64 %25, ptr %23, align 8, !tbaa !13
  %26 = getelementptr inbounds i8, ptr %21, i64 %24
  store i8 %20, ptr %26, align 1, !tbaa !9
  %27 = load ptr, ptr %6, align 8, !tbaa !5
  %28 = load ptr, ptr %4, align 8, !tbaa !5
  %29 = getelementptr inbounds %struct._lil_value_t, ptr %28, i32 0, i32 0
  %30 = load i64, ptr %29, align 8, !tbaa !13
  %31 = getelementptr inbounds i8, ptr %27, i64 %30
  store i8 0, ptr %31, align 1, !tbaa !9
  %32 = load ptr, ptr %6, align 8, !tbaa !5
  %33 = load ptr, ptr %4, align 8, !tbaa !5
  %34 = getelementptr inbounds %struct._lil_value_t, ptr %33, i32 0, i32 1
  store ptr %32, ptr %34, align 8, !tbaa !10
  store i32 1, ptr %3, align 4
  store i32 1, ptr %7, align 4
  br label %35

35:                                               ; preds = %19, %18
  call void @llvm.lifetime.end.p0(i64 8, ptr %6) #3
  %36 = load i32, ptr %3, align 4
  ret i32 %36
}

; Function Attrs: nounwind allocsize(1)
declare ptr @realloc(ptr noundef, i64 noundef) #2

attributes #0 = { nocallback nofree nosync nounwind willreturn memory(argmem: readwrite) }
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 allocsize(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 #3 = { nounwind }
attributes #4 = { nounwind allocsize(1) }

!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 = !{!7, !7, i64 0}
!10 = !{!11, !6, i64 8}
!11 = !{!"_lil_value_t", !12, i64 0, !6, i64 8}
!12 = !{!"long", !7, i64 0}
!13 = !{!11, !12, 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 nounwind willreturn uwtable
define dso_local range(i32 0, 2) i32 @lil_append_char(ptr nocapture noundef %0, i8 noundef signext %1) local_unnamed_addr #0 {
  %3 = getelementptr inbounds i8, ptr %0, i64 8
  %4 = load ptr, ptr %3, align 8, !tbaa !5
  %5 = load i64, ptr %0, align 8, !tbaa !11
  %6 = add i64 %5, 2
  %7 = tail call ptr @realloc(ptr noundef %4, i64 noundef %6) #2
  %.not = icmp eq ptr %7, null
  br i1 %.not, label %13, label %8

8:                                                ; preds = %2
  %9 = load i64, ptr %0, align 8, !tbaa !11
  %10 = add i64 %9, 1
  store i64 %10, ptr %0, align 8, !tbaa !11
  %11 = getelementptr inbounds i8, ptr %7, i64 %9
  store i8 %1, ptr %11, align 1, !tbaa !12
  %12 = getelementptr inbounds i8, ptr %7, i64 %10
  store i8 0, ptr %12, align 1, !tbaa !12
  store ptr %7, ptr %3, align 8, !tbaa !5
  br label %13

13:                                               ; preds = %2, %8
  %.0 = phi i32 [ 1, %8 ], [ 0, %2 ]
  ret i32 %.0
}

; Function Attrs: mustprogress nounwind willreturn allockind("realloc") allocsize(1) memory(argmem: readwrite, inaccessiblemem: readwrite)
declare noalias noundef ptr @realloc(ptr allocptr nocapture noundef, i64 noundef) local_unnamed_addr #1

attributes #0 = { 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 #1 = { mustprogress nounwind willreturn allockind("realloc") allocsize(1) 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 #2 = { nounwind allocsize(1) }

!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 8}
!6 = !{!"_lil_value_t", !7, i64 0, !10, i64 8}
!7 = !{!"long", !8, i64 0}
!8 = !{!"omnipotent char", !9, i64 0}
!9 = !{!"Simple C/C++ TBAA"}
!10 = !{!"any pointer", !8, i64 0}
!11 = !{!6, !7, i64 0}
!12 = !{!8, !8, i64 0}


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