; LLVM IR from ryanlayer/giggle :: src (metadata_index)

; 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"

@.str.10 = external hidden unnamed_addr constant [23 x i8], align 1

; 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: noreturn
declare void @err(i32 noundef, ptr noundef, ...) #1

; Function Attrs: nounwind uwtable
define dso_local signext i8 @data_type_enum_to_char(i32 noundef %0) #2 {
  %2 = alloca i32, align 4
  %3 = alloca i8, align 1
  store i32 %0, ptr %2, align 4, !tbaa !5
  call void @llvm.lifetime.start.p0(i64 1, ptr %3) #3
  store i8 0, ptr %3, align 1, !tbaa !9
  %4 = load i32, ptr %2, align 4, !tbaa !5
  switch i32 %4, label %13 [
    i32 0, label %5
    i32 1, label %6
    i32 2, label %7
    i32 3, label %8
    i32 4, label %9
    i32 5, label %10
    i32 6, label %11
    i32 7, label %12
  ]

5:                                                ; preds = %1
  store i8 99, ptr %3, align 1, !tbaa !9
  br label %15

6:                                                ; preds = %1
  store i8 98, ptr %3, align 1, !tbaa !9
  br label %15

7:                                                ; preds = %1
  store i8 104, ptr %3, align 1, !tbaa !9
  br label %15

8:                                                ; preds = %1
  store i8 105, ptr %3, align 1, !tbaa !9
  br label %15

9:                                                ; preds = %1
  store i8 108, ptr %3, align 1, !tbaa !9
  br label %15

10:                                               ; preds = %1
  store i8 102, ptr %3, align 1, !tbaa !9
  br label %15

11:                                               ; preds = %1
  store i8 100, ptr %3, align 1, !tbaa !9
  br label %15

12:                                               ; preds = %1
  store i8 115, ptr %3, align 1, !tbaa !9
  br label %15

13:                                               ; preds = %1
  %14 = load i32, ptr %2, align 4, !tbaa !5
  call void (i32, ptr, ...) @err(i32 noundef 1, ptr noundef @.str.10, i32 noundef %14) #4
  unreachable

15:                                               ; preds = %12, %11, %10, %9, %8, %7, %6, %5
  %16 = load i8, ptr %3, align 1, !tbaa !9
  call void @llvm.lifetime.end.p0(i64 1, ptr %3) #3
  ret i8 %16
}

attributes #0 = { nocallback nofree nosync nounwind willreturn memory(argmem: readwrite) }
attributes #1 = { noreturn "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 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 = { nounwind }
attributes #4 = { noreturn }

!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/C++ TBAA"}
!9 = !{!7, !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"

@.str.10 = external hidden unnamed_addr constant [23 x i8], align 1

; Function Attrs: noreturn
declare void @err(i32 noundef, ptr noundef, ...) local_unnamed_addr #0

; Function Attrs: nounwind uwtable
define dso_local signext range(i8 98, 116) i8 @data_type_enum_to_char(i32 noundef %0) local_unnamed_addr #1 {
  %2 = icmp ult i32 %0, 8
  br i1 %2, label %switch.lookup, label %3

3:                                                ; preds = %1
  tail call void (i32, ptr, ...) @err(i32 noundef 1, ptr noundef nonnull @.str.10, i32 noundef %0) #2
  unreachable

switch.lookup:                                    ; preds = %1
  %4 = shl nuw nsw i32 %0, 3
  %switch.shiftamt = zext nneg i32 %4 to i64
  %switch.downshift = lshr i64 8314883427843727971, %switch.shiftamt
  %switch.masked = trunc i64 %switch.downshift to i8
  ret i8 %switch.masked
}

attributes #0 = { noreturn "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 = { 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 = { noreturn 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)"}


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