; LLVM IR from Dev-XYS/Algorithms :: Aho-Corasick-Automaton.ll (Z5printP4nodei)

; 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.node = type { i32, [26 x ptr], ptr, ptr }

@root = external dso_local global ptr, align 8
@s = external dso_local global [1000 x [1000 x i8]], align 16
@len = external dso_local global [1000 x i32], align 16
@.str = external hidden unnamed_addr constant [29 x i8], align 1

; Function Attrs: mustprogress uwtable
define dso_local void @_Z5printP4nodei(ptr noundef %0, i32 noundef %1) #0 {
  %3 = alloca ptr, align 8
  %4 = alloca i32, align 4
  store ptr %0, ptr %3, align 8, !tbaa !5
  store i32 %1, ptr %4, align 4, !tbaa !9
  br label %5

5:                                                ; preds = %9, %2
  %6 = load ptr, ptr %3, align 8, !tbaa !5
  %7 = load ptr, ptr @root, align 8, !tbaa !5
  %8 = icmp ne ptr %6, %7
  br i1 %8, label %9, label %29

9:                                                ; preds = %5
  %10 = load i32, ptr %4, align 4, !tbaa !9
  %11 = load ptr, ptr %3, align 8, !tbaa !5
  %12 = getelementptr inbounds %struct.node, ptr %11, i32 0, i32 0
  %13 = load i32, ptr %12, align 8, !tbaa !11
  %14 = sext i32 %13 to i64
  %15 = getelementptr inbounds [1000 x i32], ptr @len, i64 0, i64 %14
  %16 = load i32, ptr %15, align 4, !tbaa !9
  %17 = sub nsw i32 %10, %16
  %18 = add nsw i32 %17, 1
  %19 = load ptr, ptr %3, align 8, !tbaa !5
  %20 = getelementptr inbounds %struct.node, ptr %19, i32 0, i32 0
  %21 = load i32, ptr %20, align 8, !tbaa !11
  %22 = sext i32 %21 to i64
  %23 = getelementptr inbounds [1000 x [1000 x i8]], ptr @s, i64 0, i64 %22
  %24 = getelementptr inbounds [1000 x i8], ptr %23, i64 0, i64 0
  %25 = call i32 (ptr, ...) @printf(ptr noundef @.str, i32 noundef %18, ptr noundef %24)
  %26 = load ptr, ptr %3, align 8, !tbaa !5
  %27 = getelementptr inbounds %struct.node, ptr %26, i32 0, i32 3
  %28 = load ptr, ptr %27, align 8, !tbaa !13
  store ptr %28, ptr %3, align 8, !tbaa !5
  br label %5, !llvm.loop !14

29:                                               ; preds = %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, !10, i64 0}
!10 = !{!"int", !7, i64 0}
!11 = !{!12, !10, i64 0}
!12 = !{!"_ZTS4node", !10, i64 0, !7, i64 8, !6, i64 216, !6, i64 224}
!13 = !{!12, !6, i64 224}
!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"

@root = external dso_local local_unnamed_addr global ptr, align 8
@s = external dso_local global [1000 x [1000 x i8]], align 16
@len = external dso_local local_unnamed_addr global [1000 x i32], align 16
@.str = external hidden unnamed_addr constant [29 x i8], align 1

; Function Attrs: mustprogress nofree nounwind uwtable
define dso_local void @_Z5printP4nodei(ptr noundef readonly %0, i32 noundef %1) local_unnamed_addr #0 {
  %3 = load ptr, ptr @root, align 8, !tbaa !5
  %.not4 = icmp eq ptr %3, %0
  br i1 %.not4, label %._crit_edge, label %.lr.ph

.lr.ph:                                           ; preds = %2
  %4 = add i32 %1, 1
  br label %5

5:                                                ; preds = %.lr.ph, %5
  %.05 = phi ptr [ %0, %.lr.ph ], [ %14, %5 ]
  %6 = load i32, ptr %.05, align 8, !tbaa !9
  %7 = sext i32 %6 to i64
  %8 = getelementptr inbounds [1000 x i32], ptr @len, i64 0, i64 %7
  %9 = load i32, ptr %8, align 4, !tbaa !12
  %10 = sub i32 %4, %9
  %11 = getelementptr inbounds [1000 x [1000 x i8]], ptr @s, i64 0, i64 %7
  %12 = tail call i32 (ptr, ...) @printf(ptr noundef nonnull dereferenceable(1) @.str, i32 noundef %10, ptr noundef nonnull %11)
  %13 = getelementptr inbounds i8, ptr %.05, i64 224
  %14 = load ptr, ptr %13, align 8, !tbaa !13
  %15 = load ptr, ptr @root, align 8, !tbaa !5
  %.not = icmp eq ptr %14, %15
  br i1 %.not, label %._crit_edge, label %5, !llvm.loop !14

._crit_edge:                                      ; preds = %5, %2
  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, !6, i64 0}
!6 = !{!"any pointer", !7, i64 0}
!7 = !{!"omnipotent char", !8, i64 0}
!8 = !{!"Simple C++ TBAA"}
!9 = !{!10, !11, i64 0}
!10 = !{!"_ZTS4node", !11, i64 0, !7, i64 8, !6, i64 216, !6, i64 224}
!11 = !{!"int", !7, i64 0}
!12 = !{!11, !11, i64 0}
!13 = !{!10, !6, i64 224}
!14 = distinct !{!14, !15}
!15 = !{!"llvm.loop.mustprogress"}


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