; LLVM IR from yettabaa/cub3D :: Common/Libft (ft_memmove)

; 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_memmove(ptr noundef %0, ptr 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
  store ptr %0, ptr %4, align 8, !tbaa !5
  store ptr %1, ptr %5, align 8, !tbaa !5
  store i64 %2, ptr %6, align 8, !tbaa !9
  call void @llvm.lifetime.start.p0(i64 8, ptr %7) #3
  store i64 1, ptr %7, align 8, !tbaa !9
  %8 = load ptr, ptr %4, align 8, !tbaa !5
  %9 = load ptr, ptr %5, align 8, !tbaa !5
  %10 = icmp ugt ptr %8, %9
  br i1 %10, label %11, label %31

11:                                               ; preds = %3
  br label %12

12:                                               ; preds = %16, %11
  %13 = load i64, ptr %7, align 8, !tbaa !9
  %14 = load i64, ptr %6, align 8, !tbaa !9
  %15 = icmp ule i64 %13, %14
  br i1 %15, label %16, label %30

16:                                               ; preds = %12
  %17 = load ptr, ptr %5, align 8, !tbaa !5
  %18 = load i64, ptr %6, align 8, !tbaa !9
  %19 = load i64, ptr %7, align 8, !tbaa !9
  %20 = sub i64 %18, %19
  %21 = getelementptr inbounds i8, ptr %17, i64 %20
  %22 = load i8, ptr %21, align 1, !tbaa !11
  %23 = load ptr, ptr %4, align 8, !tbaa !5
  %24 = load i64, ptr %6, align 8, !tbaa !9
  %25 = load i64, ptr %7, align 8, !tbaa !9
  %26 = sub i64 %24, %25
  %27 = getelementptr inbounds i8, ptr %23, i64 %26
  store i8 %22, ptr %27, align 1, !tbaa !11
  %28 = load i64, ptr %7, align 8, !tbaa !9
  %29 = add i64 %28, 1
  store i64 %29, ptr %7, align 8, !tbaa !9
  br label %12, !llvm.loop !12

30:                                               ; preds = %12
  br label %36

31:                                               ; preds = %3
  %32 = load ptr, ptr %4, align 8, !tbaa !5
  %33 = load ptr, ptr %5, align 8, !tbaa !5
  %34 = load i64, ptr %6, align 8, !tbaa !9
  %35 = call ptr @ft_memcpy(ptr noundef %32, ptr noundef %33, i64 noundef %34)
  br label %36

36:                                               ; preds = %31, %30
  %37 = load ptr, ptr %4, align 8, !tbaa !5
  call void @llvm.lifetime.end.p0(i64 8, ptr %7) #3
  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 ptr @ft_memcpy(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 }

!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}
!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 noundef ptr @ft_memmove(ptr noundef returned %0, ptr noundef %1, i64 noundef %2) local_unnamed_addr #0 {
  %4 = ptrtoint ptr %0 to i64
  %5 = ptrtoint ptr %1 to i64
  %6 = icmp ugt ptr %0, %1
  br i1 %6, label %.preheader, label %41

.preheader:                                       ; preds = %3
  %.not17 = icmp eq i64 %2, 0
  br i1 %.not17, label %.loopexit, label %iter.check

iter.check:                                       ; preds = %.preheader
  %7 = add i64 %2, 1
  %umax = tail call i64 @llvm.umax.i64(i64 %7, i64 2)
  %8 = add i64 %umax, -1
  %min.iters.check = icmp ult i64 %7, 5
  %9 = sub i64 %5, %4
  %diff.check = icmp ult i64 %9, 16
  %or.cond = or i1 %min.iters.check, %diff.check
  br i1 %or.cond, label %.lr.ph.preheader, label %vector.main.loop.iter.check

vector.main.loop.iter.check:                      ; preds = %iter.check
  %min.iters.check20 = icmp ult i64 %7, 17
  br i1 %min.iters.check20, label %vec.epilog.ph, label %vector.ph

vector.ph:                                        ; preds = %vector.main.loop.iter.check
  %n.vec = and i64 %8, -16
  %invariant.gep = getelementptr i8, ptr %1, i64 -15
  %invariant.gep32 = getelementptr i8, ptr %0, i64 -15
  br label %vector.body

vector.body:                                      ; preds = %vector.body, %vector.ph
  %index = phi i64 [ 0, %vector.ph ], [ %index.next, %vector.body ]
  %offset.idx.neg = xor i64 %index, -1
  %10 = add i64 %offset.idx.neg, %2
  %gep = getelementptr i8, ptr %invariant.gep, i64 %10
  %wide.load = load <16 x i8>, ptr %gep, align 1, !tbaa !5
  %gep33 = getelementptr i8, ptr %invariant.gep32, i64 %10
  store <16 x i8> %wide.load, ptr %gep33, align 1, !tbaa !5
  %index.next = add nuw i64 %index, 16
  %11 = icmp eq i64 %index.next, %n.vec
  br i1 %11, label %middle.block, label %vector.body, !llvm.loop !8

middle.block:                                     ; preds = %vector.body
  %cmp.n = icmp eq i64 %8, %n.vec
  br i1 %cmp.n, label %.loopexit, label %vec.epilog.iter.check

vec.epilog.iter.check:                            ; preds = %middle.block
  %ind.end24 = or disjoint i64 %n.vec, 1
  %n.vec.remaining = and i64 %8, 12
  %min.epilog.iters.check = icmp eq i64 %n.vec.remaining, 0
  br i1 %min.epilog.iters.check, label %.lr.ph.preheader, label %vec.epilog.ph

vec.epilog.ph:                                    ; preds = %vector.main.loop.iter.check, %vec.epilog.iter.check
  %vec.epilog.resume.val = phi i64 [ %n.vec, %vec.epilog.iter.check ], [ 0, %vector.main.loop.iter.check ]
  %n.vec23 = and i64 %8, -4
  %ind.end = or disjoint i64 %n.vec23, 1
  %invariant.gep34 = getelementptr i8, ptr %1, i64 -3
  %invariant.gep36 = getelementptr i8, ptr %0, i64 -3
  br label %vec.epilog.vector.body

vec.epilog.vector.body:                           ; preds = %vec.epilog.vector.body, %vec.epilog.ph
  %index25 = phi i64 [ %vec.epilog.resume.val, %vec.epilog.ph ], [ %index.next30, %vec.epilog.vector.body ]
  %offset.idx26.neg = xor i64 %index25, -1
  %12 = add i64 %offset.idx26.neg, %2
  %gep35 = getelementptr i8, ptr %invariant.gep34, i64 %12
  %wide.load27 = load <4 x i8>, ptr %gep35, align 1, !tbaa !5
  %gep37 = getelementptr i8, ptr %invariant.gep36, i64 %12
  store <4 x i8> %wide.load27, ptr %gep37, align 1, !tbaa !5
  %index.next30 = add nuw i64 %index25, 4
  %13 = icmp eq i64 %index.next30, %n.vec23
  br i1 %13, label %vec.epilog.middle.block, label %vec.epilog.vector.body, !llvm.loop !12

vec.epilog.middle.block:                          ; preds = %vec.epilog.vector.body
  %cmp.n31 = icmp eq i64 %8, %n.vec23
  br i1 %cmp.n31, label %.loopexit, label %.lr.ph.preheader

.lr.ph.preheader:                                 ; preds = %vec.epilog.middle.block, %iter.check, %vec.epilog.iter.check
  %.018.ph = phi i64 [ 1, %iter.check ], [ %ind.end24, %vec.epilog.iter.check ], [ %ind.end, %vec.epilog.middle.block ]
  %14 = sub i64 %umax, %.018.ph
  %xtraiter = and i64 %14, 3
  %lcmp.mod.not = icmp eq i64 %xtraiter, 0
  br i1 %lcmp.mod.not, label %.lr.ph.prol.loopexit, label %.lr.ph.prol

.lr.ph.prol:                                      ; preds = %.lr.ph.preheader, %.lr.ph.prol
  %.018.prol = phi i64 [ %19, %.lr.ph.prol ], [ %.018.ph, %.lr.ph.preheader ]
  %prol.iter = phi i64 [ %prol.iter.next, %.lr.ph.prol ], [ 0, %.lr.ph.preheader ]
  %15 = sub i64 %2, %.018.prol
  %16 = getelementptr inbounds i8, ptr %1, i64 %15
  %17 = load i8, ptr %16, align 1, !tbaa !5
  %18 = getelementptr inbounds i8, ptr %0, i64 %15
  store i8 %17, ptr %18, align 1, !tbaa !5
  %19 = add nuw i64 %.018.prol, 1
  %prol.iter.next = add i64 %prol.iter, 1
  %prol.iter.cmp.not = icmp eq i64 %prol.iter.next, %xtraiter
  br i1 %prol.iter.cmp.not, label %.lr.ph.prol.loopexit, label %.lr.ph.prol, !llvm.loop !13

.lr.ph.prol.loopexit:                             ; preds = %.lr.ph.prol, %.lr.ph.preheader
  %.018.unr = phi i64 [ %.018.ph, %.lr.ph.preheader ], [ %19, %.lr.ph.prol ]
  %20 = sub i64 %.018.ph, %umax
  %21 = icmp ugt i64 %20, -4
  br i1 %21, label %.loopexit, label %.lr.ph

.lr.ph:                                           ; preds = %.lr.ph.prol.loopexit, %.lr.ph
  %.018 = phi i64 [ %40, %.lr.ph ], [ %.018.unr, %.lr.ph.prol.loopexit ]
  %22 = sub i64 %2, %.018
  %23 = getelementptr inbounds i8, ptr %1, i64 %22
  %24 = load i8, ptr %23, align 1, !tbaa !5
  %25 = getelementptr inbounds i8, ptr %0, i64 %22
  store i8 %24, ptr %25, align 1, !tbaa !5
  %.neg = xor i64 %.018, -1
  %26 = add i64 %.neg, %2
  %27 = getelementptr inbounds i8, ptr %1, i64 %26
  %28 = load i8, ptr %27, align 1, !tbaa !5
  %29 = getelementptr inbounds i8, ptr %0, i64 %26
  store i8 %28, ptr %29, align 1, !tbaa !5
  %30 = add nuw i64 %.018, 2
  %31 = sub i64 %2, %30
  %32 = getelementptr inbounds i8, ptr %1, i64 %31
  %33 = load i8, ptr %32, align 1, !tbaa !5
  %34 = getelementptr inbounds i8, ptr %0, i64 %31
  store i8 %33, ptr %34, align 1, !tbaa !5
  %35 = add nuw i64 %.018, 3
  %36 = sub i64 %2, %35
  %37 = getelementptr inbounds i8, ptr %1, i64 %36
  %38 = load i8, ptr %37, align 1, !tbaa !5
  %39 = getelementptr inbounds i8, ptr %0, i64 %36
  store i8 %38, ptr %39, align 1, !tbaa !5
  %40 = add nuw i64 %.018, 4
  %exitcond.3 = icmp eq i64 %7, %40
  br i1 %exitcond.3, label %.loopexit, label %.lr.ph, !llvm.loop !15

41:                                               ; preds = %3
  %42 = tail call ptr @ft_memcpy(ptr noundef %0, ptr noundef %1, i64 noundef %2) #3
  br label %.loopexit

.loopexit:                                        ; preds = %.lr.ph.prol.loopexit, %.lr.ph, %middle.block, %vec.epilog.middle.block, %.preheader, %41
  ret ptr %0
}

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

; Function Attrs: nocallback nofree nosync nounwind speculatable willreturn memory(none)
declare i64 @llvm.umax.i64(i64, i64) #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 = { nocallback nofree nosync nounwind speculatable willreturn memory(none) }
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, !6, i64 0}
!6 = !{!"omnipotent char", !7, i64 0}
!7 = !{!"Simple C/C++ TBAA"}
!8 = distinct !{!8, !9, !10, !11}
!9 = !{!"llvm.loop.mustprogress"}
!10 = !{!"llvm.loop.isvectorized", i32 1}
!11 = !{!"llvm.loop.unroll.runtime.disable"}
!12 = distinct !{!12, !9, !10, !11}
!13 = distinct !{!13, !14}
!14 = !{!"llvm.loop.unroll.disable"}
!15 = distinct !{!15, !9, !10}


; Effective O3 passes: EarlyCSEPass,GlobalOptPass,IndVarSimplifyPass,InferFunctionAttrsPass,InstCombinePass,InstSimplifyPass,JumpThreadingPass,LCSSAPass,LICMPass,LoopLoadEliminationPass,LoopRotatePass,LoopSimplifyPass,LoopUnrollPass,LoopVectorizePass,PostOrderFunctionAttrsPass,SROAPass,SimplifyCFGPass,TailCallElimPass