; LLVM IR from xirc/cp-algorithm :: atcoder/abc114/C/main.ll (Z5matchi)

; 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: mustprogress nounwind uwtable
define dso_local noundef zeroext i1 @_Z5matchi(i32 noundef %0) #0 {
  %2 = alloca i32, align 4
  %3 = alloca i32, align 4
  %4 = alloca i32, align 4
  %5 = alloca i32, align 4
  %6 = alloca i32, align 4
  store i32 %0, ptr %2, align 4, !tbaa !5
  call void @llvm.lifetime.start.p0(i64 4, ptr %3) #2
  store i32 0, ptr %3, align 4, !tbaa !5
  call void @llvm.lifetime.start.p0(i64 4, ptr %4) #2
  store i32 0, ptr %4, align 4, !tbaa !5
  call void @llvm.lifetime.start.p0(i64 4, ptr %5) #2
  store i32 0, ptr %5, align 4, !tbaa !5
  br label %7

7:                                                ; preds = %30, %1
  %8 = load i32, ptr %2, align 4, !tbaa !5
  %9 = icmp sgt i32 %8, 0
  br i1 %9, label %10, label %33

10:                                               ; preds = %7
  call void @llvm.lifetime.start.p0(i64 4, ptr %6) #2
  %11 = load i32, ptr %2, align 4, !tbaa !5
  %12 = srem i32 %11, 10
  store i32 %12, ptr %6, align 4, !tbaa !5
  %13 = load i32, ptr %6, align 4, !tbaa !5
  %14 = icmp eq i32 %13, 3
  br i1 %14, label %15, label %18

15:                                               ; preds = %10
  %16 = load i32, ptr %3, align 4, !tbaa !5
  %17 = add nsw i32 %16, 1
  store i32 %17, ptr %3, align 4, !tbaa !5
  br label %18

18:                                               ; preds = %15, %10
  %19 = load i32, ptr %6, align 4, !tbaa !5
  %20 = icmp eq i32 %19, 5
  br i1 %20, label %21, label %24

21:                                               ; preds = %18
  %22 = load i32, ptr %4, align 4, !tbaa !5
  %23 = add nsw i32 %22, 1
  store i32 %23, ptr %4, align 4, !tbaa !5
  br label %24

24:                                               ; preds = %21, %18
  %25 = load i32, ptr %6, align 4, !tbaa !5
  %26 = icmp eq i32 %25, 7
  br i1 %26, label %27, label %30

27:                                               ; preds = %24
  %28 = load i32, ptr %5, align 4, !tbaa !5
  %29 = add nsw i32 %28, 1
  store i32 %29, ptr %5, align 4, !tbaa !5
  br label %30

30:                                               ; preds = %27, %24
  %31 = load i32, ptr %2, align 4, !tbaa !5
  %32 = sdiv i32 %31, 10
  store i32 %32, ptr %2, align 4, !tbaa !5
  call void @llvm.lifetime.end.p0(i64 4, ptr %6) #2
  br label %7, !llvm.loop !9

33:                                               ; preds = %7
  %34 = load i32, ptr %3, align 4, !tbaa !5
  %35 = icmp sgt i32 %34, 0
  br i1 %35, label %36, label %42

36:                                               ; preds = %33
  %37 = load i32, ptr %4, align 4, !tbaa !5
  %38 = icmp sgt i32 %37, 0
  br i1 %38, label %39, label %42

39:                                               ; preds = %36
  %40 = load i32, ptr %5, align 4, !tbaa !5
  %41 = icmp sgt i32 %40, 0
  br label %42

42:                                               ; preds = %39, %36, %33
  %43 = phi i1 [ false, %36 ], [ false, %33 ], [ %41, %39 ]
  call void @llvm.lifetime.end.p0(i64 4, ptr %5) #2
  call void @llvm.lifetime.end.p0(i64 4, ptr %4) #2
  call void @llvm.lifetime.end.p0(i64 4, ptr %3) #2
  ret i1 %43
}

; Function Attrs: nocallback nofree nosync nounwind willreturn memory(argmem: readwrite)
declare void @llvm.lifetime.start.p0(i64 immarg, ptr nocapture) #1

; Function Attrs: nocallback nofree nosync nounwind willreturn memory(argmem: readwrite)
declare void @llvm.lifetime.end.p0(i64 immarg, ptr nocapture) #1

attributes #0 = { 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 #1 = { nocallback nofree nosync nounwind willreturn memory(argmem: readwrite) }
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 = !{!"int", !7, i64 0}
!7 = !{!"omnipotent char", !8, i64 0}
!8 = !{!"Simple C++ TBAA"}
!9 = distinct !{!9, !10}
!10 = !{!"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 nofree norecurse nosync nounwind willreturn memory(none) uwtable
define dso_local noundef zeroext i1 @_Z5matchi(i32 noundef %0) local_unnamed_addr #0 {
  %2 = icmp sgt i32 %0, 0
  br i1 %2, label %.lr.ph, label %._crit_edge

.lr.ph:                                           ; preds = %1, %.lr.ph
  %.022 = phi i32 [ %10, %.lr.ph ], [ %0, %1 ]
  %.01321 = phi i32 [ %.1, %.lr.ph ], [ 0, %1 ]
  %.01420 = phi i32 [ %.115, %.lr.ph ], [ 0, %1 ]
  %.01619 = phi i32 [ %spec.select, %.lr.ph ], [ 0, %1 ]
  %3 = urem i32 %.022, 10
  %4 = icmp eq i32 %3, 3
  %5 = zext i1 %4 to i32
  %spec.select = add nuw nsw i32 %.01619, %5
  %6 = icmp eq i32 %3, 5
  %7 = zext i1 %6 to i32
  %.115 = add nuw nsw i32 %.01420, %7
  %8 = icmp eq i32 %3, 7
  %9 = zext i1 %8 to i32
  %.1 = add nuw nsw i32 %.01321, %9
  %10 = udiv i32 %.022, 10
  %.not = icmp ult i32 %.022, 10
  br i1 %.not, label %._crit_edge.loopexit, label %.lr.ph, !llvm.loop !5

._crit_edge.loopexit:                             ; preds = %.lr.ph
  %11 = icmp ne i32 %spec.select, 0
  %12 = icmp ne i32 %.115, 0
  %13 = select i1 %11, i1 %12, i1 false
  %14 = icmp ne i32 %.1, 0
  %15 = select i1 %13, i1 %14, i1 false
  br label %._crit_edge

._crit_edge:                                      ; preds = %._crit_edge.loopexit, %1
  %.016.lcssa = phi i1 [ false, %1 ], [ %15, %._crit_edge.loopexit ]
  ret i1 %.016.lcssa
}

attributes #0 = { mustprogress nofree norecurse nosync nounwind willreturn memory(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 = distinct !{!5, !6}
!6 = !{!"llvm.loop.mustprogress"}


; Effective O3 passes: GVNPass,GlobalOptPass,IPSCCPPass,InferFunctionAttrsPass,InstCombinePass,InstSimplifyPass,LCSSAPass,LoopRotatePass,LoopSimplifyPass,LoopUnrollPass,PostOrderFunctionAttrsPass,ReassociatePass,SROAPass,SimplifyCFGPass