; LLVM IR from lionsoul2014/friso :: src (friso_GBK)

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

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

; Function Attrs: nounwind uwtable
define dso_local i32 @gbk_letter_number(ptr noundef %0) #1 {
  %2 = alloca ptr, align 8
  %3 = alloca i32, align 4
  %4 = alloca i32, align 4
  store ptr %0, ptr %2, align 8, !tbaa !5
  call void @llvm.lifetime.start.p0(i64 4, ptr %3) #2
  %5 = load ptr, ptr %2, align 8, !tbaa !5
  %6 = getelementptr inbounds i8, ptr %5, i64 0
  %7 = load i8, ptr %6, align 1, !tbaa !9
  %8 = zext i8 %7 to i32
  store i32 %8, ptr %3, align 4, !tbaa !10
  call void @llvm.lifetime.start.p0(i64 4, ptr %4) #2
  %9 = load ptr, ptr %2, align 8, !tbaa !5
  %10 = getelementptr inbounds i8, ptr %9, i64 1
  %11 = load i8, ptr %10, align 1, !tbaa !9
  %12 = zext i8 %11 to i32
  store i32 %12, ptr %4, align 4, !tbaa !10
  %13 = load i32, ptr %3, align 4, !tbaa !10
  %14 = icmp eq i32 %13, 162
  br i1 %14, label %15, label %31

15:                                               ; preds = %1
  %16 = load i32, ptr %4, align 4, !tbaa !10
  %17 = icmp sge i32 %16, 161
  br i1 %17, label %18, label %21

18:                                               ; preds = %15
  %19 = load i32, ptr %4, align 4, !tbaa !10
  %20 = icmp sle i32 %19, 176
  br i1 %20, label %29, label %21

21:                                               ; preds = %18, %15
  %22 = load i32, ptr %4, align 4, !tbaa !10
  %23 = icmp sge i32 %22, 240
  br i1 %23, label %24, label %27

24:                                               ; preds = %21
  %25 = load i32, ptr %4, align 4, !tbaa !10
  %26 = icmp sle i32 %25, 254
  br label %27

27:                                               ; preds = %24, %21
  %28 = phi i1 [ false, %21 ], [ %26, %24 ]
  br label %29

29:                                               ; preds = %27, %18
  %30 = phi i1 [ true, %18 ], [ %28, %27 ]
  br label %31

31:                                               ; preds = %29, %1
  %32 = phi i1 [ false, %1 ], [ %30, %29 ]
  %33 = zext i1 %32 to i32
  call void @llvm.lifetime.end.p0(i64 4, ptr %4) #2
  call void @llvm.lifetime.end.p0(i64 4, ptr %3) #2
  ret i32 %33
}

attributes #0 = { nocallback nofree nosync nounwind willreturn memory(argmem: readwrite) }
attributes #1 = { 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/C++ TBAA"}
!9 = !{!7, !7, i64 0}
!10 = !{!11, !11, i64 0}
!11 = !{!"int", !7, i64 0}


; 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(argmem: read) uwtable
define dso_local range(i32 0, 2) i32 @gbk_letter_number(ptr nocapture noundef readonly %0) local_unnamed_addr #0 {
  %2 = load i8, ptr %0, align 1, !tbaa !5
  %3 = getelementptr inbounds i8, ptr %0, i64 1
  %4 = load i8, ptr %3, align 1, !tbaa !5
  %5 = icmp eq i8 %2, -94
  br i1 %5, label %6, label %12

6:                                                ; preds = %1
  %7 = add i8 %4, 95
  %or.cond = icmp ult i8 %7, 16
  br i1 %or.cond, label %12, label %8

8:                                                ; preds = %6
  %9 = add i8 %4, 16
  %10 = icmp ult i8 %9, 15
  %11 = zext i1 %10 to i32
  br label %12

12:                                               ; preds = %8, %6, %1
  %13 = phi i32 [ 0, %1 ], [ %11, %8 ], [ 1, %6 ]
  ret i32 %13
}

attributes #0 = { mustprogress nofree norecurse nosync nounwind willreturn memory(argmem: read) 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/C++ TBAA"}


; Effective O3 passes: EarlyCSEPass,GlobalOptPass,IPSCCPPass,InferFunctionAttrsPass,InstCombinePass,PostOrderFunctionAttrsPass,SROAPass,SimplifyCFGPass