; 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_lowercase_letter(ptr noundef %0) #1 {
  %2 = alloca i32, align 4
  %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
  %7 = load ptr, ptr %3, align 8, !tbaa !5
  %8 = getelementptr inbounds i8, ptr %7, i64 0
  %9 = load i8, ptr %8, align 1, !tbaa !9
  %10 = zext i8 %9 to i32
  store i32 %10, ptr %4, align 4, !tbaa !10
  call void @llvm.lifetime.start.p0(i64 4, ptr %5) #2
  %11 = load ptr, ptr %3, align 8, !tbaa !5
  %12 = getelementptr inbounds i8, ptr %11, i64 1
  %13 = load i8, ptr %12, align 1, !tbaa !9
  %14 = zext i8 %13 to i32
  store i32 %14, ptr %5, align 4, !tbaa !10
  %15 = load i32, ptr %4, align 4, !tbaa !10
  %16 = icmp sle i32 %15, 128
  br i1 %16, label %17, label %26

17:                                               ; preds = %1
  %18 = load i32, ptr %4, align 4, !tbaa !10
  %19 = icmp sge i32 %18, 97
  br i1 %19, label %20, label %23

20:                                               ; preds = %17
  %21 = load i32, ptr %4, align 4, !tbaa !10
  %22 = icmp sle i32 %21, 122
  br label %23

23:                                               ; preds = %20, %17
  %24 = phi i1 [ false, %17 ], [ %22, %20 ]
  %25 = zext i1 %24 to i32
  store i32 %25, ptr %2, align 4
  store i32 1, ptr %6, align 4
  br label %40

26:                                               ; preds = %1
  %27 = load i32, ptr %4, align 4, !tbaa !10
  %28 = icmp eq i32 %27, 163
  br i1 %28, label %29, label %37

29:                                               ; preds = %26
  %30 = load i32, ptr %5, align 4, !tbaa !10
  %31 = icmp sge i32 %30, 225
  br i1 %31, label %32, label %35

32:                                               ; preds = %29
  %33 = load i32, ptr %5, align 4, !tbaa !10
  %34 = icmp sle i32 %33, 250
  br label %35

35:                                               ; preds = %32, %29
  %36 = phi i1 [ false, %29 ], [ %34, %32 ]
  br label %37

37:                                               ; preds = %35, %26
  %38 = phi i1 [ false, %26 ], [ %36, %35 ]
  %39 = zext i1 %38 to i32
  store i32 %39, ptr %2, align 4
  store i32 1, ptr %6, align 4
  br label %40

40:                                               ; preds = %37, %23
  call void @llvm.lifetime.end.p0(i64 4, ptr %5) #2
  call void @llvm.lifetime.end.p0(i64 4, ptr %4) #2
  %41 = load i32, ptr %2, align 4
  ret i32 %41
}

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_lowercase_letter(ptr nocapture noundef readonly %0) local_unnamed_addr #0 {
  %2 = load i8, ptr %0, align 1, !tbaa !5
  %3 = icmp ult i8 %2, -127
  br i1 %3, label %4, label %7

4:                                                ; preds = %1
  %5 = add i8 %2, -97
  %6 = icmp ult i8 %5, 26
  br label %13

7:                                                ; preds = %1
  %8 = getelementptr inbounds i8, ptr %0, i64 1
  %9 = load i8, ptr %8, align 1, !tbaa !5
  %10 = icmp eq i8 %2, -93
  %11 = add i8 %9, 31
  %12 = icmp ult i8 %11, 26
  %narrow = select i1 %10, i1 %12, i1 false
  br label %13

13:                                               ; preds = %7, %4
  %.0.in = phi i1 [ %6, %4 ], [ %narrow, %7 ]
  %.0 = zext i1 %.0.in to i32
  ret i32 %.0
}

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