; LLVM IR from simon-zerisenay/42_Push_Swap :: libft (ft_strdup)

; 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_strdup(ptr noundef %0) #0 {
  %2 = alloca ptr, align 8
  %3 = alloca ptr, align 8
  %4 = alloca ptr, align 8
  %5 = alloca ptr, align 8
  %6 = alloca i32, align 4
  %7 = alloca i32, align 4
  store ptr %0, ptr %3, align 8, !tbaa !5
  call void @llvm.lifetime.start.p0(i64 8, ptr %4) #4
  call void @llvm.lifetime.start.p0(i64 8, ptr %5) #4
  call void @llvm.lifetime.start.p0(i64 4, ptr %6) #4
  %8 = load ptr, ptr %3, align 8, !tbaa !5
  %9 = call i64 @ft_strlen(ptr noundef %8)
  %10 = trunc i64 %9 to i32
  store i32 %10, ptr %6, align 4, !tbaa !9
  %11 = load i32, ptr %6, align 4, !tbaa !9
  %12 = add nsw i32 %11, 1
  %13 = sext i32 %12 to i64
  %14 = mul i64 %13, 1
  %15 = call noalias ptr @malloc(i64 noundef %14) #5
  store ptr %15, ptr %4, align 8, !tbaa !5
  %16 = load ptr, ptr %4, align 8, !tbaa !5
  %17 = icmp ne ptr %16, null
  br i1 %17, label %19, label %18

18:                                               ; preds = %1
  store ptr null, ptr %2, align 8
  store i32 1, ptr %7, align 4
  br label %36

19:                                               ; preds = %1
  %20 = load ptr, ptr %4, align 8, !tbaa !5
  store ptr %20, ptr %5, align 8, !tbaa !5
  br label %21

21:                                               ; preds = %25, %19
  %22 = load ptr, ptr %3, align 8, !tbaa !5
  %23 = load i8, ptr %22, align 1, !tbaa !11
  %24 = icmp ne i8 %23, 0
  br i1 %24, label %25, label %33

25:                                               ; preds = %21
  %26 = load ptr, ptr %3, align 8, !tbaa !5
  %27 = load i8, ptr %26, align 1, !tbaa !11
  %28 = load ptr, ptr %5, align 8, !tbaa !5
  store i8 %27, ptr %28, align 1, !tbaa !11
  %29 = load ptr, ptr %5, align 8, !tbaa !5
  %30 = getelementptr inbounds i8, ptr %29, i32 1
  store ptr %30, ptr %5, align 8, !tbaa !5
  %31 = load ptr, ptr %3, align 8, !tbaa !5
  %32 = getelementptr inbounds i8, ptr %31, i32 1
  store ptr %32, ptr %3, align 8, !tbaa !5
  br label %21, !llvm.loop !12

33:                                               ; preds = %21
  %34 = load ptr, ptr %5, align 8, !tbaa !5
  store i8 0, ptr %34, align 1, !tbaa !11
  %35 = load ptr, ptr %4, align 8, !tbaa !5
  store ptr %35, ptr %2, align 8
  store i32 1, ptr %7, align 4
  br label %36

36:                                               ; preds = %33, %18
  call void @llvm.lifetime.end.p0(i64 4, ptr %6) #4
  call void @llvm.lifetime.end.p0(i64 8, ptr %5) #4
  call void @llvm.lifetime.end.p0(i64 8, ptr %4) #4
  %37 = load ptr, ptr %2, align 8
  ret ptr %37
}

; 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

; 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 = !{!7, !7, i64 0}
!12 = distinct !{!12, !13}
!13 = !{!"llvm.loop.mustprogress"}


; 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 noalias noundef ptr @ft_strdup(ptr noundef %0) local_unnamed_addr #0 {
  %2 = tail call i64 @ft_strlen(ptr noundef %0) #3
  %3 = shl i64 %2, 32
  %sext = add i64 %3, 4294967296
  %4 = ashr exact i64 %sext, 32
  %5 = tail call noalias ptr @malloc(i64 noundef %4) #4
  %.not = icmp eq ptr %5, null
  br i1 %.not, label %11, label %.preheader

.preheader:                                       ; preds = %1
  %6 = load i8, ptr %0, align 1, !tbaa !5
  %.not1516 = icmp eq i8 %6, 0
  br i1 %.not1516, label %._crit_edge, label %.lr.ph

.lr.ph:                                           ; preds = %.preheader, %.lr.ph
  %7 = phi i8 [ %10, %.lr.ph ], [ %6, %.preheader ]
  %.01118 = phi ptr [ %8, %.lr.ph ], [ %5, %.preheader ]
  %.01217 = phi ptr [ %9, %.lr.ph ], [ %0, %.preheader ]
  store i8 %7, ptr %.01118, align 1, !tbaa !5
  %8 = getelementptr inbounds i8, ptr %.01118, i64 1
  %9 = getelementptr inbounds i8, ptr %.01217, i64 1
  %10 = load i8, ptr %9, align 1, !tbaa !5
  %.not15 = icmp eq i8 %10, 0
  br i1 %.not15, label %._crit_edge, label %.lr.ph, !llvm.loop !8

._crit_edge:                                      ; preds = %.lr.ph, %.preheader
  %.011.lcssa = phi ptr [ %5, %.preheader ], [ %8, %.lr.ph ]
  store i8 0, ptr %.011.lcssa, align 1, !tbaa !5
  br label %11

11:                                               ; preds = %1, %._crit_edge
  ret ptr %5
}

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

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 = { nounwind }
attributes #4 = { 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 = !{!"omnipotent char", !7, i64 0}
!7 = !{!"Simple C/C++ TBAA"}
!8 = distinct !{!8, !9}
!9 = !{!"llvm.loop.mustprogress"}


; Effective O3 passes: CorrelatedValuePropagationPass,EarlyCSEPass,GVNPass,GlobalOptPass,InferFunctionAttrsPass,InstCombinePass,InstSimplifyPass,JumpThreadingPass,LCSSAPass,LoopRotatePass,LoopSimplifyPass,LoopUnrollPass,PostOrderFunctionAttrsPass,ReassociatePass,SROAPass,SimplifyCFGPass,TailCallElimPass