; LLVM IR from 48d31kh413k/1337-push_swap-42 :: libft (ft_substr)

; 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_substr(ptr noundef %0, i32 noundef %1, i64 noundef %2) #0 {
  %4 = alloca ptr, align 8
  %5 = alloca ptr, align 8
  %6 = alloca i32, align 4
  %7 = alloca i64, align 8
  %8 = alloca ptr, align 8
  %9 = alloca i64, align 8
  %10 = alloca i64, align 8
  %11 = alloca i32, align 4
  store ptr %0, ptr %5, align 8, !tbaa !5
  store i32 %1, ptr %6, align 4, !tbaa !9
  store i64 %2, ptr %7, align 8, !tbaa !11
  call void @llvm.lifetime.start.p0(i64 8, ptr %8) #4
  call void @llvm.lifetime.start.p0(i64 8, ptr %9) #4
  call void @llvm.lifetime.start.p0(i64 8, ptr %10) #4
  %12 = load ptr, ptr %5, align 8, !tbaa !5
  %13 = icmp ne ptr %12, null
  br i1 %13, label %15, label %14

14:                                               ; preds = %3
  store ptr null, ptr %4, align 8
  store i32 1, ptr %11, align 4
  br label %51

15:                                               ; preds = %3
  %16 = load ptr, ptr %5, align 8, !tbaa !5
  %17 = call i64 @ft_strlen(ptr noundef %16)
  store i64 %17, ptr %9, align 8, !tbaa !11
  store i64 0, ptr %10, align 8, !tbaa !11
  %18 = load i32, ptr %6, align 4, !tbaa !9
  %19 = zext i32 %18 to i64
  %20 = load i64, ptr %9, align 8, !tbaa !11
  %21 = icmp ult i64 %19, %20
  br i1 %21, label %22, label %27

22:                                               ; preds = %15
  %23 = load i64, ptr %9, align 8, !tbaa !11
  %24 = load i32, ptr %6, align 4, !tbaa !9
  %25 = zext i32 %24 to i64
  %26 = sub i64 %23, %25
  store i64 %26, ptr %10, align 8, !tbaa !11
  br label %27

27:                                               ; preds = %22, %15
  %28 = load i64, ptr %10, align 8, !tbaa !11
  %29 = load i64, ptr %7, align 8, !tbaa !11
  %30 = icmp ugt i64 %28, %29
  br i1 %30, label %31, label %33

31:                                               ; preds = %27
  %32 = load i64, ptr %7, align 8, !tbaa !11
  store i64 %32, ptr %10, align 8, !tbaa !11
  br label %33

33:                                               ; preds = %31, %27
  %34 = load i64, ptr %10, align 8, !tbaa !11
  %35 = add i64 %34, 1
  %36 = mul i64 1, %35
  %37 = call noalias ptr @malloc(i64 noundef %36) #5
  store ptr %37, ptr %8, align 8, !tbaa !5
  %38 = load ptr, ptr %8, align 8, !tbaa !5
  %39 = icmp ne ptr %38, null
  br i1 %39, label %41, label %40

40:                                               ; preds = %33
  store ptr null, ptr %4, align 8
  store i32 1, ptr %11, align 4
  br label %51

41:                                               ; preds = %33
  %42 = load ptr, ptr %8, align 8, !tbaa !5
  %43 = load ptr, ptr %5, align 8, !tbaa !5
  %44 = load i32, ptr %6, align 4, !tbaa !9
  %45 = zext i32 %44 to i64
  %46 = getelementptr inbounds i8, ptr %43, i64 %45
  %47 = load i64, ptr %10, align 8, !tbaa !11
  %48 = add i64 %47, 1
  %49 = call i64 @ft_strlcpy(ptr noundef %42, ptr noundef %46, i64 noundef %48)
  %50 = load ptr, ptr %8, align 8, !tbaa !5
  store ptr %50, ptr %4, align 8
  store i32 1, ptr %11, align 4
  br label %51

51:                                               ; preds = %41, %40, %14
  call void @llvm.lifetime.end.p0(i64 8, ptr %10) #4
  call void @llvm.lifetime.end.p0(i64 8, ptr %9) #4
  call void @llvm.lifetime.end.p0(i64 8, ptr %8) #4
  %52 = load ptr, ptr %4, align 8
  ret ptr %52
}

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

declare i64 @ft_strlen(ptr noundef) #2

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

declare i64 @ft_strlcpy(ptr noundef, ptr noundef, i64 noundef) #2

; 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 = { "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 = !{!"int", !7, i64 0}
!11 = !{!12, !12, i64 0}
!12 = !{!"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_substr(ptr noundef %0, i32 noundef %1, i64 noundef %2) local_unnamed_addr #0 {
  %.not = icmp eq ptr %0, null
  br i1 %.not, label %12, label %4

4:                                                ; preds = %3
  %5 = tail call i64 @ft_strlen(ptr noundef nonnull %0) #4
  %6 = zext i32 %1 to i64
  %spec.select = tail call i64 @llvm.usub.sat.i64(i64 %5, i64 %6)
  %.1 = tail call i64 @llvm.umin.i64(i64 %spec.select, i64 %2)
  %7 = add i64 %.1, 1
  %8 = tail call noalias ptr @malloc(i64 noundef %7) #5
  %.not22 = icmp eq ptr %8, null
  br i1 %.not22, label %12, label %9

9:                                                ; preds = %4
  %10 = getelementptr inbounds i8, ptr %0, i64 %6
  %11 = tail call i64 @ft_strlcpy(ptr noundef nonnull %8, ptr noundef nonnull %10, i64 noundef %7) #4
  br label %12

12:                                               ; preds = %4, %3, %9
  %.016 = phi ptr [ %8, %9 ], [ null, %3 ], [ null, %4 ]
  ret ptr %.016
}

declare i64 @ft_strlen(ptr 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

declare i64 @ft_strlcpy(ptr noundef, ptr noundef, i64 noundef) local_unnamed_addr #1

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

; 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 = { "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: EarlyCSEPass,GlobalOptPass,InferFunctionAttrsPass,InstCombinePass,PostOrderFunctionAttrsPass,SROAPass,SimplifyCFGPass,TailCallElimPass