; LLVM IR from rociodellasala/TP3_SO :: Kernel (video_driver)

; 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: 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: nocallback nofree nounwind willreturn memory(argmem: write)
declare void @llvm.memset.p0.i64(ptr nocapture writeonly, i8, i64, i1 immarg) #1

; Function Attrs: nounwind uwtable
declare dso_local i32 @countDigits(i64 noundef) #2

; Function Attrs: nounwind uwtable
declare dso_local void @print_stringColor(ptr noundef, ptr noundef) #2

; Function Attrs: nounwind uwtable
define dso_local void @print_intColor(i64 noundef %0, ptr noundef %1) #2 {
  %3 = alloca i64, align 8
  %4 = alloca ptr, align 8
  %5 = alloca [16 x i8], align 16
  %6 = alloca i32, align 4
  store i64 %0, ptr %3, align 8, !tbaa !5
  store ptr %1, ptr %4, align 8, !tbaa !9
  call void @llvm.lifetime.start.p0(i64 16, ptr %5) #3
  call void @llvm.memset.p0.i64(ptr align 16 %5, i8 0, i64 16, i1 false)
  call void @llvm.lifetime.start.p0(i64 4, ptr %6) #3
  %7 = load i64, ptr %3, align 8, !tbaa !5
  %8 = call i32 @countDigits(i64 noundef %7)
  %9 = sub nsw i32 %8, 1
  store i32 %9, ptr %6, align 4, !tbaa !11
  br label %10

10:                                               ; preds = %13, %2
  %11 = load i32, ptr %6, align 4, !tbaa !11
  %12 = icmp sge i32 %11, 0
  br i1 %12, label %13, label %25

13:                                               ; preds = %10
  %14 = load i64, ptr %3, align 8, !tbaa !5
  %15 = urem i64 %14, 10
  %16 = add i64 %15, 48
  %17 = trunc i64 %16 to i8
  %18 = load i32, ptr %6, align 4, !tbaa !11
  %19 = sext i32 %18 to i64
  %20 = getelementptr inbounds [16 x i8], ptr %5, i64 0, i64 %19
  store i8 %17, ptr %20, align 1, !tbaa !13
  %21 = load i64, ptr %3, align 8, !tbaa !5
  %22 = udiv i64 %21, 10
  store i64 %22, ptr %3, align 8, !tbaa !5
  %23 = load i32, ptr %6, align 4, !tbaa !11
  %24 = add nsw i32 %23, -1
  store i32 %24, ptr %6, align 4, !tbaa !11
  br label %10, !llvm.loop !14

25:                                               ; preds = %10
  %26 = getelementptr inbounds [16 x i8], ptr %5, i64 0, i64 0
  %27 = load ptr, ptr %4, align 8, !tbaa !9
  call void @print_stringColor(ptr noundef %26, ptr noundef %27)
  call void @llvm.lifetime.end.p0(i64 4, ptr %6) #3
  call void @llvm.lifetime.end.p0(i64 16, ptr %5) #3
  ret void
}

attributes #0 = { nocallback nofree nosync nounwind willreturn memory(argmem: readwrite) }
attributes #1 = { nocallback nofree nounwind willreturn memory(argmem: write) }
attributes #2 = { 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 #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 = !{!"long", !7, i64 0}
!7 = !{!"omnipotent char", !8, i64 0}
!8 = !{!"Simple C/C++ TBAA"}
!9 = !{!10, !10, i64 0}
!10 = !{!"any pointer", !7, i64 0}
!11 = !{!12, !12, i64 0}
!12 = !{!"int", !7, i64 0}
!13 = !{!7, !7, i64 0}
!14 = distinct !{!14, !15}
!15 = !{!"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: mustprogress nocallback nofree nosync nounwind willreturn memory(argmem: readwrite)
declare void @llvm.lifetime.start.p0(i64 immarg, ptr nocapture) #0

; Function Attrs: mustprogress nocallback nofree nosync nounwind willreturn memory(argmem: readwrite)
declare void @llvm.lifetime.end.p0(i64 immarg, ptr nocapture) #0

; Function Attrs: mustprogress nocallback nofree nounwind willreturn memory(argmem: write)
declare void @llvm.memset.p0.i64(ptr nocapture writeonly, i8, i64, i1 immarg) #1

; Function Attrs: nounwind uwtable
declare dso_local i32 @countDigits(i64 noundef) local_unnamed_addr #2

; Function Attrs: nounwind uwtable
declare dso_local void @print_stringColor(ptr noundef, ptr noundef) local_unnamed_addr #2

; Function Attrs: nounwind uwtable
define dso_local void @print_intColor(i64 noundef %0, ptr noundef %1) local_unnamed_addr #2 {
  %3 = alloca [16 x i8], align 16
  call void @llvm.lifetime.start.p0(i64 16, ptr nonnull %3) #3
  call void @llvm.memset.p0.i64(ptr noundef nonnull align 16 dereferenceable(16) %3, i8 0, i64 16, i1 false)
  %4 = tail call i32 @countDigits(i64 noundef %0)
  %5 = icmp sgt i32 %4, 0
  br i1 %5, label %.lr.ph.preheader, label %._crit_edge

.lr.ph.preheader:                                 ; preds = %2
  %6 = zext nneg i32 %4 to i64
  %xtraiter = and i64 %6, 1
  %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
  %indvars.iv.next.prol = add nsw i64 %6, -1
  %7 = urem i64 %0, 10
  %8 = trunc nuw nsw i64 %7 to i8
  %9 = or disjoint i8 %8, 48
  %10 = getelementptr inbounds [16 x i8], ptr %3, i64 0, i64 %indvars.iv.next.prol
  store i8 %9, ptr %10, align 1, !tbaa !5
  %11 = udiv i64 %0, 10
  br label %.lr.ph.prol.loopexit

.lr.ph.prol.loopexit:                             ; preds = %.lr.ph.prol, %.lr.ph.preheader
  %indvars.iv.unr = phi i64 [ %6, %.lr.ph.preheader ], [ %indvars.iv.next.prol, %.lr.ph.prol ]
  %.067.unr = phi i64 [ %0, %.lr.ph.preheader ], [ %11, %.lr.ph.prol ]
  %12 = icmp eq i32 %4, 1
  br i1 %12, label %._crit_edge, label %.lr.ph

.lr.ph:                                           ; preds = %.lr.ph.prol.loopexit, %.lr.ph
  %indvars.iv = phi i64 [ %indvars.iv.next.1, %.lr.ph ], [ %indvars.iv.unr, %.lr.ph.prol.loopexit ]
  %.067 = phi i64 [ %22, %.lr.ph ], [ %.067.unr, %.lr.ph.prol.loopexit ]
  %indvars.iv.next = add nsw i64 %indvars.iv, -1
  %13 = urem i64 %.067, 10
  %14 = trunc nuw nsw i64 %13 to i8
  %15 = or disjoint i8 %14, 48
  %16 = getelementptr inbounds [16 x i8], ptr %3, i64 0, i64 %indvars.iv.next
  store i8 %15, ptr %16, align 1, !tbaa !5
  %17 = udiv i64 %.067, 10
  %indvars.iv.next.1 = add nsw i64 %indvars.iv, -2
  %18 = urem i64 %17, 10
  %19 = trunc nuw nsw i64 %18 to i8
  %20 = or disjoint i8 %19, 48
  %21 = getelementptr inbounds [16 x i8], ptr %3, i64 0, i64 %indvars.iv.next.1
  store i8 %20, ptr %21, align 1, !tbaa !5
  %22 = udiv i64 %.067, 100
  %23 = icmp ugt i64 %indvars.iv.next, 1
  br i1 %23, label %.lr.ph, label %._crit_edge, !llvm.loop !8

._crit_edge:                                      ; preds = %.lr.ph.prol.loopexit, %.lr.ph, %2
  call void @print_stringColor(ptr noundef nonnull %3, ptr noundef %1)
  call void @llvm.lifetime.end.p0(i64 16, ptr nonnull %3) #3
  ret void
}

attributes #0 = { mustprogress nocallback nofree nosync nounwind willreturn memory(argmem: readwrite) }
attributes #1 = { mustprogress nocallback nofree nounwind willreturn memory(argmem: write) }
attributes #2 = { 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 #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}
!9 = !{!"llvm.loop.mustprogress"}


; Effective O3 passes: CorrelatedValuePropagationPass,EarlyCSEPass,GlobalOptPass,IPSCCPPass,IndVarSimplifyPass,InferFunctionAttrsPass,InstCombinePass,JumpThreadingPass,LoopRotatePass,LoopSimplifyPass,LoopUnrollPass,SROAPass,SimplifyCFGPass,TailCallElimPass