; LLVM IR from Dev-XYS/Algorithms :: Aho-Corasick-Automaton.ll (Z6insertPc)

; 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
@idc = external dso_local global i32, align 4

; Function Attrs: nobuiltin allocsize(0)
declare noundef nonnull ptr @_Znwm(i64 noundef) #0

declare i32 @__gxx_personality_v0(...)

; Function Attrs: nobuiltin nounwind
declare void @_ZdlPvm(ptr noundef, i64 noundef) #1

; Function Attrs: mustprogress uwtable
define dso_local void @_Z6insertPc(ptr noundef %0) #2 personality ptr @__gxx_personality_v0 {
  %2 = alloca ptr, align 8
  %3 = alloca i32, align 4
  %4 = alloca i32, align 4
  %5 = alloca ptr, align 8
  %6 = alloca i32, align 4
  %7 = alloca ptr, align 8
  %8 = alloca i32, align 4
  store ptr %0, ptr %2, align 8, !tbaa !5
  call void @llvm.lifetime.start.p0(i64 4, ptr %3) #5
  %9 = load ptr, ptr %2, align 8, !tbaa !5
  %10 = call i64 @strlen(ptr noundef %9) #6
  %11 = trunc i64 %10 to i32
  store i32 %11, ptr %3, align 4, !tbaa !9
  call void @llvm.lifetime.start.p0(i64 4, ptr %4) #5
  call void @llvm.lifetime.start.p0(i64 8, ptr %5) #5
  %12 = load ptr, ptr @root, align 8, !tbaa !5
  store ptr %12, ptr %5, align 8, !tbaa !5
  call void @llvm.lifetime.start.p0(i64 4, ptr %6) #5
  store i32 0, ptr %6, align 4, !tbaa !9
  br label %13

13:                                               ; preds = %52, %1
  %14 = load i32, ptr %6, align 4, !tbaa !9
  %15 = load i32, ptr %3, align 4, !tbaa !9
  %16 = icmp slt i32 %14, %15
  br i1 %16, label %18, label %17

17:                                               ; preds = %13
  call void @llvm.lifetime.end.p0(i64 4, ptr %6) #5
  br label %55

18:                                               ; preds = %13
  %19 = load ptr, ptr %2, align 8, !tbaa !5
  %20 = load i32, ptr %6, align 4, !tbaa !9
  %21 = sext i32 %20 to i64
  %22 = getelementptr inbounds i8, ptr %19, i64 %21
  %23 = load i8, ptr %22, align 1, !tbaa !11
  %24 = sext i8 %23 to i32
  %25 = sub nsw i32 %24, 97
  store i32 %25, ptr %4, align 4, !tbaa !9
  %26 = load ptr, ptr %5, align 8, !tbaa !5
  %27 = getelementptr inbounds %struct.node, ptr %26, i32 0, i32 1
  %28 = load i32, ptr %4, align 4, !tbaa !9
  %29 = sext i32 %28 to i64
  %30 = getelementptr inbounds [26 x ptr], ptr %27, i64 0, i64 %29
  %31 = load ptr, ptr %30, align 8, !tbaa !5
  %32 = icmp eq ptr %31, null
  br i1 %32, label %33, label %45

33:                                               ; preds = %18
  %34 = call noalias noundef nonnull ptr @_Znwm(i64 noundef 232) #7
  invoke void @_ZN4nodeC1Ev(ptr noundef nonnull align 8 dereferenceable(232) %34)
          to label %35 unwind label %41

35:                                               ; preds = %33
  %36 = load ptr, ptr %5, align 8, !tbaa !5
  %37 = getelementptr inbounds %struct.node, ptr %36, i32 0, i32 1
  %38 = load i32, ptr %4, align 4, !tbaa !9
  %39 = sext i32 %38 to i64
  %40 = getelementptr inbounds [26 x ptr], ptr %37, i64 0, i64 %39
  store ptr %34, ptr %40, align 8, !tbaa !5
  br label %45

41:                                               ; preds = %33
  %42 = landingpad { ptr, i32 }
          cleanup
  %43 = extractvalue { ptr, i32 } %42, 0
  store ptr %43, ptr %7, align 8
  %44 = extractvalue { ptr, i32 } %42, 1
  store i32 %44, ptr %8, align 4
  call void @_ZdlPvm(ptr noundef %34, i64 noundef 232) #8
  call void @llvm.lifetime.end.p0(i64 4, ptr %6) #5
  call void @llvm.lifetime.end.p0(i64 8, ptr %5) #5
  call void @llvm.lifetime.end.p0(i64 4, ptr %4) #5
  call void @llvm.lifetime.end.p0(i64 4, ptr %3) #5
  br label %60

45:                                               ; preds = %35, %18
  %46 = load ptr, ptr %5, align 8, !tbaa !5
  %47 = getelementptr inbounds %struct.node, ptr %46, i32 0, i32 1
  %48 = load i32, ptr %4, align 4, !tbaa !9
  %49 = sext i32 %48 to i64
  %50 = getelementptr inbounds [26 x ptr], ptr %47, i64 0, i64 %49
  %51 = load ptr, ptr %50, align 8, !tbaa !5
  store ptr %51, ptr %5, align 8, !tbaa !5
  br label %52

52:                                               ; preds = %45
  %53 = load i32, ptr %6, align 4, !tbaa !9
  %54 = add nsw i32 %53, 1
  store i32 %54, ptr %6, align 4, !tbaa !9
  br label %13, !llvm.loop !12

55:                                               ; preds = %17
  %56 = load i32, ptr @idc, align 4, !tbaa !9
  %57 = add nsw i32 %56, 1
  store i32 %57, ptr @idc, align 4, !tbaa !9
  %58 = load ptr, ptr %5, align 8, !tbaa !5
  %59 = getelementptr inbounds %struct.node, ptr %58, i32 0, i32 0
  store i32 %57, ptr %59, align 8, !tbaa !14
  call void @llvm.lifetime.end.p0(i64 8, ptr %5) #5
  call void @llvm.lifetime.end.p0(i64 4, ptr %4) #5
  call void @llvm.lifetime.end.p0(i64 4, ptr %3) #5
  ret void

60:                                               ; preds = %41
  %61 = load ptr, ptr %7, align 8
  %62 = load i32, ptr %8, align 4
  %63 = insertvalue { ptr, i32 } poison, ptr %61, 0
  %64 = insertvalue { ptr, i32 } %63, i32 %62, 1
  resume { ptr, i32 } %64
}

; Function Attrs: nocallback nofree nosync nounwind willreturn memory(argmem: readwrite)
declare void @llvm.lifetime.start.p0(i64 immarg, ptr nocapture) #3

; Function Attrs: nounwind willreturn memory(read)
declare i64 @strlen(ptr noundef) #4

; Function Attrs: nocallback nofree nosync nounwind willreturn memory(argmem: readwrite)
declare void @llvm.lifetime.end.p0(i64 immarg, ptr nocapture) #3

declare void @_ZN4nodeC1Ev(ptr)

attributes #0 = { nobuiltin 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 #1 = { nobuiltin 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" }
attributes #2 = { 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 #3 = { nocallback nofree nosync nounwind willreturn memory(argmem: readwrite) }
attributes #4 = { nounwind willreturn memory(read) "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 #5 = { nounwind }
attributes #6 = { nounwind willreturn memory(read) }
attributes #7 = { builtin allocsize(0) }
attributes #8 = { builtin 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++ TBAA"}
!9 = !{!10, !10, i64 0}
!10 = !{!"int", !7, i64 0}
!11 = !{!7, !7, i64 0}
!12 = distinct !{!12, !13}
!13 = !{!"llvm.loop.mustprogress"}
!14 = !{!15, !10, i64 0}
!15 = !{!"_ZTS4node", !10, i64 0, !7, i64 8, !6, i64 216, !6, i64 224}


; 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
@idc = external dso_local local_unnamed_addr global i32, align 4

; Function Attrs: nobuiltin allocsize(0)
declare noundef nonnull ptr @_Znwm(i64 noundef) local_unnamed_addr #0

declare i32 @__gxx_personality_v0(...)

; Function Attrs: nobuiltin nounwind
declare void @_ZdlPvm(ptr noundef, i64 noundef) local_unnamed_addr #1

; Function Attrs: mustprogress uwtable
define dso_local void @_Z6insertPc(ptr nocapture noundef readonly %0) local_unnamed_addr #2 personality ptr @__gxx_personality_v0 {
  %2 = tail call i64 @strlen(ptr noundef nonnull dereferenceable(1) %0) #4
  %3 = trunc i64 %2 to i32
  %.016 = load ptr, ptr @root, align 8, !tbaa !5
  %4 = icmp sgt i32 %3, 0
  br i1 %4, label %.lr.ph.preheader, label %._crit_edge

.lr.ph.preheader:                                 ; preds = %1
  %wide.trip.count = and i64 %2, 2147483647
  br label %.lr.ph

._crit_edge:                                      ; preds = %20, %1
  %.0.lcssa = phi ptr [ %.016, %1 ], [ %.0, %20 ]
  %5 = load i32, ptr @idc, align 4, !tbaa !9
  %6 = add nsw i32 %5, 1
  store i32 %6, ptr @idc, align 4, !tbaa !9
  store i32 %6, ptr %.0.lcssa, align 8, !tbaa !11
  ret void

.lr.ph:                                           ; preds = %.lr.ph.preheader, %20
  %indvars.iv = phi i64 [ 0, %.lr.ph.preheader ], [ %indvars.iv.next, %20 ]
  %.018 = phi ptr [ %.016, %.lr.ph.preheader ], [ %.0, %20 ]
  %7 = getelementptr inbounds i8, ptr %0, i64 %indvars.iv
  %8 = load i8, ptr %7, align 1, !tbaa !13
  %9 = sext i8 %8 to i64
  %10 = add nsw i64 %9, -97
  %11 = getelementptr inbounds i8, ptr %.018, i64 8
  %12 = getelementptr inbounds [26 x ptr], ptr %11, i64 0, i64 %10
  %13 = load ptr, ptr %12, align 8, !tbaa !5
  %14 = icmp eq ptr %13, null
  br i1 %14, label %15, label %20

15:                                               ; preds = %.lr.ph
  %16 = tail call noalias noundef nonnull dereferenceable(232) ptr @_Znwm(i64 noundef 232) #5
  invoke void @_ZN4nodeC1Ev(ptr noundef nonnull align 8 dereferenceable(232) %16)
          to label %17 unwind label %18

17:                                               ; preds = %15
  store ptr %16, ptr %12, align 8, !tbaa !5
  br label %20

18:                                               ; preds = %15
  %19 = landingpad { ptr, i32 }
          cleanup
  tail call void @_ZdlPvm(ptr noundef nonnull %16, i64 noundef 232) #6
  resume { ptr, i32 } %19

20:                                               ; preds = %17, %.lr.ph
  %.0 = phi ptr [ %16, %17 ], [ %13, %.lr.ph ]
  %indvars.iv.next = add nuw nsw i64 %indvars.iv, 1
  %exitcond.not = icmp eq i64 %indvars.iv.next, %wide.trip.count
  br i1 %exitcond.not, label %._crit_edge, label %.lr.ph, !llvm.loop !14
}

; Function Attrs: mustprogress nofree nounwind willreturn memory(argmem: read)
declare i64 @strlen(ptr nocapture noundef) local_unnamed_addr #3

declare void @_ZN4nodeC1Ev(ptr) local_unnamed_addr

attributes #0 = { nobuiltin 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 #1 = { nobuiltin 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" }
attributes #2 = { 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 #3 = { mustprogress nofree nounwind willreturn memory(argmem: read) "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 willreturn memory(read) }
attributes #5 = { builtin allocsize(0) }
attributes #6 = { builtin 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++ 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 = !{!7, !7, i64 0}
!14 = distinct !{!14, !15}
!15 = !{!"llvm.loop.mustprogress"}


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