; LLVM IR from Skyness60/C-Garbage-Collector :: src (gc_utils)

; 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 ptr @ft_realloc(ptr noundef %0, i64 noundef %1, i64 noundef %2) #0 {
  %4 = alloca ptr, align 8
  %5 = alloca ptr, align 8
  %6 = alloca i64, align 8
  %7 = alloca i64, align 8
  %8 = alloca ptr, align 8
  %9 = alloca i32, align 4
  store ptr %0, ptr %5, align 8, !tbaa !5
  store i64 %1, ptr %6, align 8, !tbaa !9
  store i64 %2, ptr %7, align 8, !tbaa !9
  call void @llvm.lifetime.start.p0(i64 8, ptr %8) #4
  %10 = load i64, ptr %7, align 8, !tbaa !9
  %11 = icmp eq i64 %10, 0
  br i1 %11, label %12, label %14

12:                                               ; preds = %3
  %13 = load ptr, ptr %5, align 8, !tbaa !5
  call void @free(ptr noundef %13) #4
  store ptr null, ptr %4, align 8
  store i32 1, ptr %9, align 4
  br label %42

14:                                               ; preds = %3
  %15 = load i64, ptr %7, align 8, !tbaa !9
  %16 = call noalias ptr @malloc(i64 noundef %15) #5
  store ptr %16, ptr %8, align 8, !tbaa !5
  %17 = load ptr, ptr %8, align 8, !tbaa !5
  %18 = icmp ne ptr %17, null
  br i1 %18, label %21, label %19

19:                                               ; preds = %14
  %20 = load ptr, ptr %5, align 8, !tbaa !5
  call void @free(ptr noundef %20) #4
  store ptr null, ptr %4, align 8
  store i32 1, ptr %9, align 4
  br label %42

21:                                               ; preds = %14
  %22 = load ptr, ptr %5, align 8, !tbaa !5
  %23 = icmp ne ptr %22, null
  br i1 %23, label %24, label %40

24:                                               ; preds = %21
  %25 = load i64, ptr %6, align 8, !tbaa !9
  %26 = load i64, ptr %7, align 8, !tbaa !9
  %27 = icmp ult i64 %25, %26
  br i1 %27, label %28, label %33

28:                                               ; preds = %24
  %29 = load ptr, ptr %8, align 8, !tbaa !5
  %30 = load ptr, ptr %5, align 8, !tbaa !5
  %31 = load i64, ptr %6, align 8, !tbaa !9
  %32 = call ptr @ft_memcpy(ptr noundef %29, ptr noundef %30, i64 noundef %31)
  br label %38

33:                                               ; preds = %24
  %34 = load ptr, ptr %8, align 8, !tbaa !5
  %35 = load ptr, ptr %5, align 8, !tbaa !5
  %36 = load i64, ptr %7, align 8, !tbaa !9
  %37 = call ptr @ft_memcpy(ptr noundef %34, ptr noundef %35, i64 noundef %36)
  br label %38

38:                                               ; preds = %33, %28
  %39 = load ptr, ptr %5, align 8, !tbaa !5
  call void @free(ptr noundef %39) #4
  br label %40

40:                                               ; preds = %38, %21
  %41 = load ptr, ptr %8, align 8, !tbaa !5
  store ptr %41, ptr %4, align 8
  store i32 1, ptr %9, align 4
  br label %42

42:                                               ; preds = %40, %19, %12
  call void @llvm.lifetime.end.p0(i64 8, ptr %8) #4
  %43 = load ptr, ptr %4, align 8
  ret ptr %43
}

; Function Attrs: nocallback nofree nosync nounwind willreturn memory(argmem: readwrite)
declare void @llvm.lifetime.start.p0(i64 immarg, ptr nocapture) #1

; Function Attrs: nounwind
declare void @free(ptr noundef) #2

; Function Attrs: nounwind allocsize(0)
declare noalias ptr @malloc(i64 noundef) #3

; Function Attrs: nounwind uwtable
declare hidden ptr @ft_memcpy(ptr noundef, ptr noundef, i64 noundef) #0

; Function Attrs: nocallback nofree nosync nounwind willreturn memory(argmem: readwrite)
declare void @llvm.lifetime.end.p0(i64 immarg, ptr nocapture) #1

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 = { nocallback nofree nosync nounwind willreturn memory(argmem: readwrite) }
attributes #2 = { 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 #3 = { nounwind allocsize(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 #4 = { nounwind }
attributes #5 = { nounwind allocsize(0) }

!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, !10, i64 0}
!10 = !{!"long", !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 ptr @ft_realloc(ptr noundef %0, i64 noundef %1, i64 noundef %2) local_unnamed_addr #0 {
  %4 = icmp eq i64 %2, 0
  br i1 %4, label %5, label %6

5:                                                ; preds = %3
  tail call void @free(ptr noundef %0) #4
  br label %12

6:                                                ; preds = %3
  %7 = tail call noalias ptr @malloc(i64 noundef %2) #5
  %.not = icmp eq ptr %7, null
  br i1 %.not, label %8, label %9

8:                                                ; preds = %6
  tail call void @free(ptr noundef %0) #4
  br label %12

9:                                                ; preds = %6
  %.not20 = icmp eq ptr %0, null
  br i1 %.not20, label %12, label %10

10:                                               ; preds = %9
  %. = tail call i64 @llvm.umin.i64(i64 %1, i64 %2)
  %11 = tail call ptr @ft_memcpy(ptr noundef nonnull %7, ptr noundef nonnull %0, i64 noundef %.)
  tail call void @free(ptr noundef nonnull %0) #4
  br label %12

12:                                               ; preds = %9, %10, %8, %5
  %.0 = phi ptr [ null, %5 ], [ null, %8 ], [ %7, %10 ], [ %7, %9 ]
  ret ptr %.0
}

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

; Function Attrs: mustprogress nofree nounwind willreturn allockind("alloc,uninitialized") allocsize(0) memory(inaccessiblemem: readwrite)
declare noalias noundef ptr @malloc(i64 noundef) local_unnamed_addr #2

; Function Attrs: nounwind uwtable
declare hidden ptr @ft_memcpy(ptr noundef, ptr noundef, i64 noundef) local_unnamed_addr #0

; Function Attrs: nocallback nofree nosync nounwind speculatable willreturn memory(none)
declare i64 @llvm.umin.i64(i64, i64) #3

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 = { 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 #2 = { mustprogress nofree nounwind willreturn allockind("alloc,uninitialized") allocsize(0) memory(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 #3 = { nocallback nofree nosync nounwind speculatable willreturn memory(none) }
attributes #4 = { nounwind }
attributes #5 = { nounwind allocsize(0) }

!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)"}


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