; LLVM IR from brpapa/algorithms :: solutions/uri/1200.ll (Z6prefixP4llde)

; 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"

%struct.llde = type { i8, ptr, ptr }

@qteTotal = external dso_local global i32, align 4
@qte = external dso_local global i32, align 4
@.str = external hidden unnamed_addr constant [5 x i8], align 1

; Function Attrs: mustprogress uwtable
define dso_local void @_Z6prefixP4llde(ptr noundef %0) #0 {
  %2 = alloca ptr, align 8
  store ptr %0, ptr %2, align 8, !tbaa !5
  %3 = load ptr, ptr %2, align 8, !tbaa !5
  %4 = icmp eq ptr %3, null
  br i1 %4, label %5, label %6

5:                                                ; preds = %1
  br label %26

6:                                                ; preds = %1
  %7 = load ptr, ptr %2, align 8, !tbaa !5
  %8 = getelementptr inbounds %struct.llde, ptr %7, i32 0, i32 0
  %9 = load i8, ptr %8, align 8, !tbaa !9
  %10 = sext i8 %9 to i32
  %11 = load i32, ptr @qte, align 4, !tbaa !11
  %12 = add nsw i32 %11, 1
  store i32 %12, ptr @qte, align 4, !tbaa !11
  %13 = load i32, ptr @qteTotal, align 4, !tbaa !11
  %14 = sub nsw i32 %13, 1
  %15 = icmp eq i32 %11, %14
  %16 = zext i1 %15 to i64
  %17 = select i1 %15, i8 10, i8 32
  %18 = sext i8 %17 to i32
  %19 = call i32 (ptr, ...) @printf(ptr noundef @.str, i32 noundef %10, i32 noundef %18)
  %20 = load ptr, ptr %2, align 8, !tbaa !5
  %21 = getelementptr inbounds %struct.llde, ptr %20, i32 0, i32 1
  %22 = load ptr, ptr %21, align 8, !tbaa !13
  call void @_Z6prefixP4llde(ptr noundef %22)
  %23 = load ptr, ptr %2, align 8, !tbaa !5
  %24 = getelementptr inbounds %struct.llde, ptr %23, i32 0, i32 2
  %25 = load ptr, ptr %24, align 8, !tbaa !14
  call void @_Z6prefixP4llde(ptr noundef %25)
  br label %26

26:                                               ; preds = %6, %5
  ret void
}

declare i32 @printf(ptr noundef, ...) #1

attributes #0 = { mustprogress 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" }

!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++ TBAA"}
!9 = !{!10, !7, i64 0}
!10 = !{!"_ZTS4llde", !7, i64 0, !6, i64 8, !6, i64 16}
!11 = !{!12, !12, i64 0}
!12 = !{!"int", !7, i64 0}
!13 = !{!10, !6, i64 8}
!14 = !{!10, !6, i64 16}


; 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"

@qteTotal = external dso_local local_unnamed_addr global i32, align 4
@qte = external dso_local local_unnamed_addr global i32, align 4
@.str = external hidden unnamed_addr constant [5 x i8], align 1

; Function Attrs: mustprogress nofree nounwind uwtable
define dso_local void @_Z6prefixP4llde(ptr noundef readonly %0) local_unnamed_addr #0 {
  %2 = icmp eq ptr %0, null
  br i1 %2, label %tailrecurse._crit_edge, label %tailrecurse

tailrecurse:                                      ; preds = %1, %tailrecurse
  %.tr4 = phi ptr [ %15, %tailrecurse ], [ %0, %1 ]
  %3 = load i8, ptr %.tr4, align 8, !tbaa !5
  %4 = sext i8 %3 to i32
  %5 = load i32, ptr @qte, align 4, !tbaa !10
  %6 = add nsw i32 %5, 1
  store i32 %6, ptr @qte, align 4, !tbaa !10
  %7 = load i32, ptr @qteTotal, align 4, !tbaa !10
  %8 = add nsw i32 %7, -1
  %9 = icmp eq i32 %5, %8
  %10 = select i1 %9, i32 10, i32 32
  %11 = tail call i32 (ptr, ...) @printf(ptr noundef nonnull dereferenceable(1) @.str, i32 noundef %4, i32 noundef %10)
  %12 = getelementptr inbounds i8, ptr %.tr4, i64 8
  %13 = load ptr, ptr %12, align 8, !tbaa !12
  tail call void @_Z6prefixP4llde(ptr noundef %13)
  %14 = getelementptr inbounds i8, ptr %.tr4, i64 16
  %15 = load ptr, ptr %14, align 8, !tbaa !13
  %16 = icmp eq ptr %15, null
  br i1 %16, label %tailrecurse._crit_edge, label %tailrecurse

tailrecurse._crit_edge:                           ; preds = %tailrecurse, %1
  ret void
}

; Function Attrs: nofree nounwind
declare noundef i32 @printf(ptr nocapture noundef readonly, ...) local_unnamed_addr #1

attributes #0 = { mustprogress nofree 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 = { nofree 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" }

!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, !7, i64 0}
!6 = !{!"_ZTS4llde", !7, i64 0, !9, i64 8, !9, i64 16}
!7 = !{!"omnipotent char", !8, i64 0}
!8 = !{!"Simple C++ TBAA"}
!9 = !{!"any pointer", !7, i64 0}
!10 = !{!11, !11, i64 0}
!11 = !{!"int", !7, i64 0}
!12 = !{!6, !9, i64 8}
!13 = !{!6, !9, i64 16}


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