; LLVM IR from lzyrapx/Competitive-Programming :: hihocoder/1036(tire树).ll (Z5checkPc)

; 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.TreeNode = type { [26 x i32], i32, i8 }

@node = external dso_local global [1000000 x %struct.TreeNode], align 16

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

; Function Attrs: mustprogress nounwind uwtable
define dso_local noundef zeroext i1 @_Z5checkPc(ptr noundef %0) #1 {
  %2 = alloca i1, align 1
  %3 = alloca ptr, align 8
  %4 = alloca i32, align 4
  %5 = alloca i32, align 4
  %6 = alloca i32, align 4
  store ptr %0, ptr %3, align 8, !tbaa !5
  call void @llvm.lifetime.start.p0(i64 4, ptr %4) #2
  call void @llvm.lifetime.start.p0(i64 4, ptr %5) #2
  store i32 0, ptr %4, align 4, !tbaa !9
  store i32 0, ptr %5, align 4, !tbaa !9
  br label %7

7:                                                ; preds = %37, %1
  %8 = load ptr, ptr %3, align 8, !tbaa !5
  %9 = load i32, ptr %4, align 4, !tbaa !9
  %10 = sext i32 %9 to i64
  %11 = getelementptr inbounds i8, ptr %8, i64 %10
  %12 = load i8, ptr %11, align 1, !tbaa !11
  %13 = icmp ne i8 %12, 0
  br i1 %13, label %14, label %40

14:                                               ; preds = %7
  %15 = load i32, ptr %5, align 4, !tbaa !9
  %16 = sext i32 %15 to i64
  %17 = getelementptr inbounds [1000000 x %struct.TreeNode], ptr @node, i64 0, i64 %16
  %18 = getelementptr inbounds %struct.TreeNode, ptr %17, i32 0, i32 0
  %19 = load ptr, ptr %3, align 8, !tbaa !5
  %20 = load i32, ptr %4, 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
  %26 = sext i32 %25 to i64
  %27 = getelementptr inbounds [26 x i32], ptr %18, i64 0, i64 %26
  %28 = load i32, ptr %27, align 4, !tbaa !9
  store i32 %28, ptr %5, align 4, !tbaa !9
  %29 = load i32, ptr %5, align 4, !tbaa !9
  %30 = sext i32 %29 to i64
  %31 = getelementptr inbounds [1000000 x %struct.TreeNode], ptr @node, i64 0, i64 %30
  %32 = getelementptr inbounds %struct.TreeNode, ptr %31, i32 0, i32 2
  %33 = load i8, ptr %32, align 4, !tbaa !12, !range !15, !noundef !16
  %34 = trunc i8 %33 to i1
  br i1 %34, label %35, label %36

35:                                               ; preds = %14
  store i1 true, ptr %2, align 1
  store i32 1, ptr %6, align 4
  br label %41

36:                                               ; preds = %14
  br label %37

37:                                               ; preds = %36
  %38 = load i32, ptr %4, align 4, !tbaa !9
  %39 = add nsw i32 %38, 1
  store i32 %39, ptr %4, align 4, !tbaa !9
  br label %7, !llvm.loop !17

40:                                               ; preds = %7
  store i1 false, ptr %2, align 1
  store i32 1, ptr %6, align 4
  br label %41

41:                                               ; preds = %40, %35
  call void @llvm.lifetime.end.p0(i64 4, ptr %5) #2
  call void @llvm.lifetime.end.p0(i64 4, ptr %4) #2
  %42 = load i1, ptr %2, align 1
  ret i1 %42
}

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

attributes #0 = { nocallback nofree nosync nounwind willreturn memory(argmem: readwrite) }
attributes #1 = { mustprogress 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 #2 = { 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 = !{!13, !14, i64 108}
!13 = !{!"_ZTS8TreeNode", !7, i64 0, !10, i64 104, !14, i64 108}
!14 = !{!"bool", !7, i64 0}
!15 = !{i8 0, i8 2}
!16 = !{}
!17 = distinct !{!17, !18}
!18 = !{!"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"

%struct.TreeNode = type { [26 x i32], i32, i8 }

@node = external dso_local local_unnamed_addr global [1000000 x %struct.TreeNode], align 16

; Function Attrs: mustprogress nofree norecurse nosync nounwind willreturn memory(read, inaccessiblemem: none) uwtable
define dso_local noundef zeroext i1 @_Z5checkPc(ptr nocapture noundef readonly %0) local_unnamed_addr #0 {
  %2 = load i8, ptr %0, align 1, !tbaa !5
  %.not10.not = icmp eq i8 %2, 0
  br i1 %.not10.not, label %._crit_edge, label %.lr.ph

3:                                                ; preds = %.lr.ph
  %indvars.iv.next = add nuw nsw i64 %indvars.iv, 1
  %4 = getelementptr inbounds i8, ptr %0, i64 %indvars.iv.next
  %5 = load i8, ptr %4, align 1, !tbaa !5
  %.not.not = icmp eq i8 %5, 0
  br i1 %.not.not, label %._crit_edge, label %.lr.ph, !llvm.loop !8

.lr.ph:                                           ; preds = %1, %3
  %indvars.iv = phi i64 [ %indvars.iv.next, %3 ], [ 0, %1 ]
  %6 = phi i8 [ %5, %3 ], [ %2, %1 ]
  %.012 = phi i32 [ %12, %3 ], [ 0, %1 ]
  %7 = sext i32 %.012 to i64
  %8 = getelementptr inbounds [1000000 x %struct.TreeNode], ptr @node, i64 0, i64 %7
  %9 = sext i8 %6 to i64
  %10 = add nsw i64 %9, -97
  %11 = getelementptr inbounds [26 x i32], ptr %8, i64 0, i64 %10
  %12 = load i32, ptr %11, align 4, !tbaa !10
  %13 = sext i32 %12 to i64
  %14 = getelementptr inbounds [1000000 x %struct.TreeNode], ptr @node, i64 0, i64 %13, i32 2
  %15 = load i8, ptr %14, align 4, !tbaa !12, !range !15, !noundef !16
  %16 = trunc nuw i8 %15 to i1
  br i1 %16, label %._crit_edge, label %3

._crit_edge:                                      ; preds = %.lr.ph, %3, %1
  %.not.lcssa = phi i1 [ false, %1 ], [ %16, %3 ], [ %16, %.lr.ph ]
  ret i1 %.not.lcssa
}

attributes #0 = { mustprogress nofree norecurse nosync nounwind willreturn memory(read, inaccessiblemem: none) 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" }

!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++ TBAA"}
!8 = distinct !{!8, !9}
!9 = !{!"llvm.loop.mustprogress"}
!10 = !{!11, !11, i64 0}
!11 = !{!"int", !6, i64 0}
!12 = !{!13, !14, i64 108}
!13 = !{!"_ZTS8TreeNode", !6, i64 0, !11, i64 104, !14, i64 108}
!14 = !{!"bool", !6, i64 0}
!15 = !{i8 0, i8 2}
!16 = !{}


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