; LLVM IR from aap/pdp6 :: tools (rel)

; 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"

@type = external dso_local global i32, align 4
@.str.2 = external hidden unnamed_addr constant [9 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: nounwind uwtable
declare dso_local i32 @chsp() #1

; Function Attrs: nounwind uwtable
declare dso_local i64 @num() #1

declare i32 @printf(ptr noundef, ...) #2

; Function Attrs: nounwind uwtable
define dso_local void @type0() #1 {
  %1 = alloca i32, align 4
  %2 = alloca i32, align 4
  call void @llvm.lifetime.start.p0(i64 4, ptr %1) #3
  br label %3

3:                                                ; preds = %14, %0
  %4 = call i32 @chsp()
  store i32 %4, ptr %1, align 4, !tbaa !5
  %5 = load i32, ptr %1, align 4, !tbaa !5
  %6 = icmp ne i32 %5, -1
  br i1 %6, label %7, label %15

7:                                                ; preds = %3
  %8 = load i32, ptr %1, align 4, !tbaa !5
  switch i32 %8, label %14 [
    i32 58, label %9
  ]

9:                                                ; preds = %7
  %10 = call i64 @num()
  %11 = trunc i64 %10 to i32
  store i32 %11, ptr @type, align 4, !tbaa !5
  %12 = load i32, ptr @type, align 4, !tbaa !5
  %13 = call i32 (ptr, ...) @printf(ptr noundef @.str.2, i32 noundef %12)
  store i32 1, ptr %2, align 4
  br label %16

14:                                               ; preds = %7
  br label %3, !llvm.loop !9

15:                                               ; preds = %3
  store i32 0, ptr %2, align 4
  br label %16

16:                                               ; preds = %15, %9
  call void @llvm.lifetime.end.p0(i64 4, ptr %1) #3
  %17 = load i32, ptr %2, align 4
  switch i32 %17, label %19 [
    i32 0, label %18
    i32 1, label %18
  ]

18:                                               ; preds = %16, %16
  ret void

19:                                               ; preds = %16
  unreachable
}

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 = { "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 }

!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 = 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"

@type = external dso_local local_unnamed_addr global i32, align 4
@.str.2 = external hidden unnamed_addr constant [9 x i8], align 1

; Function Attrs: nounwind uwtable
declare dso_local i32 @chsp() local_unnamed_addr #0

; Function Attrs: nounwind uwtable
declare dso_local i64 @num() local_unnamed_addr #0

; Function Attrs: nofree nounwind
declare noundef i32 @printf(ptr nocapture noundef readonly, ...) local_unnamed_addr #1

; Function Attrs: nounwind uwtable
define dso_local void @type0() local_unnamed_addr #0 {
  br label %1

1:                                                ; preds = %1, %0
  %2 = tail call i32 @chsp()
  switch i32 %2, label %1 [
    i32 -1, label %.loopexit
    i32 58, label %3
  ]

3:                                                ; preds = %1
  %4 = tail call i64 @num()
  %5 = trunc i64 %4 to i32
  store i32 %5, ptr @type, align 4, !tbaa !5
  %6 = tail call i32 (ptr, ...) @printf(ptr noundef nonnull dereferenceable(1) @.str.2, i32 noundef %5)
  br label %.loopexit

.loopexit:                                        ; preds = %1, %3
  ret void
}

attributes #0 = { 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 = { nofree nounwind "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 = !{!"int", !7, i64 0}
!7 = !{!"omnipotent char", !8, i64 0}
!8 = !{!"Simple C/C++ TBAA"}


; Effective O3 passes: EarlyCSEPass,GlobalOptPass,InferFunctionAttrsPass,InstCombinePass,JumpThreadingPass,LoopSimplifyPass,LoopUnrollPass,SROAPass,SimplifyCFGPass,TailCallElimPass