; LLVM IR from tenok-rtos/tenok :: user/shell (ps)

; 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 = external hidden unnamed_addr constant [3 x i8], align 1
@.str.1 = external hidden unnamed_addr constant [7 x i8], align 1
@.str.2 = external hidden unnamed_addr constant [93 x i8], align 1
@.str.3 = external hidden unnamed_addr constant [17 x i8], align 1

; Function Attrs: nounwind uwtable
define dso_local i32 @ps(i32 noundef %0, ptr noundef %1) #0 {
  %3 = alloca i32, align 4
  %4 = alloca i32, align 4
  %5 = alloca ptr, align 8
  store i32 %0, ptr %4, align 4, !tbaa !5
  store ptr %1, ptr %5, align 8, !tbaa !9
  %6 = load i32, ptr %4, align 4, !tbaa !5
  %7 = icmp eq i32 %6, 1
  br i1 %7, label %8, label %9

8:                                                ; preds = %2
  call void @ps_print()
  store i32 0, ptr %3, align 4
  br label %26

9:                                                ; preds = %2
  %10 = load i32, ptr %4, align 4, !tbaa !5
  %11 = icmp eq i32 %10, 2
  br i1 %11, label %12, label %25

12:                                               ; preds = %9
  %13 = load ptr, ptr %5, align 8, !tbaa !9
  %14 = getelementptr inbounds ptr, ptr %13, i64 1
  %15 = load ptr, ptr %14, align 8, !tbaa !9
  %16 = call i32 @strcmp(ptr noundef @.str, ptr noundef %15) #3
  %17 = icmp ne i32 %16, 0
  br i1 %17, label %18, label %24

18:                                               ; preds = %12
  %19 = load ptr, ptr %5, align 8, !tbaa !9
  %20 = getelementptr inbounds ptr, ptr %19, i64 1
  %21 = load ptr, ptr %20, align 8, !tbaa !9
  %22 = call i32 @strcmp(ptr noundef @.str.1, ptr noundef %21) #3
  %23 = icmp ne i32 %22, 0
  br i1 %23, label %25, label %24

24:                                               ; preds = %18, %12
  call void @shell_puts(ptr noundef @.str.2)
  store i32 0, ptr %3, align 4
  br label %26

25:                                               ; preds = %18, %9
  call void @shell_puts(ptr noundef @.str.3)
  store i32 1, ptr %3, align 4
  br label %26

26:                                               ; preds = %25, %24, %8
  %27 = load i32, ptr %3, align 4
  ret i32 %27
}

; Function Attrs: nounwind uwtable
declare hidden void @ps_print() #0

; Function Attrs: nounwind willreturn memory(read)
declare i32 @strcmp(ptr noundef, ptr noundef) #1

declare void @shell_puts(ptr noundef) #2

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 = { nounwind willreturn memory(read) "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 willreturn memory(read) }

!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 = !{!10, !10, i64 0}
!10 = !{!"any pointer", !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 = external hidden unnamed_addr constant [3 x i8], align 1
@.str.1 = external hidden unnamed_addr constant [7 x i8], align 1
@.str.2 = external hidden unnamed_addr constant [93 x i8], align 1
@.str.3 = external hidden unnamed_addr constant [17 x i8], align 1

; Function Attrs: nounwind uwtable
define dso_local range(i32 0, 2) i32 @ps(i32 noundef %0, ptr nocapture noundef readonly %1) local_unnamed_addr #0 {
  switch i32 %0, label %11 [
    i32 1, label %3
    i32 2, label %4
  ]

3:                                                ; preds = %2
  tail call void @ps_print()
  br label %12

4:                                                ; preds = %2
  %5 = getelementptr inbounds i8, ptr %1, i64 8
  %6 = load ptr, ptr %5, align 8, !tbaa !5
  %7 = tail call i32 @strcmp(ptr noundef nonnull dereferenceable(1) @.str, ptr noundef nonnull dereferenceable(1) %6) #3
  %.not = icmp eq i32 %7, 0
  br i1 %.not, label %10, label %8

8:                                                ; preds = %4
  %9 = tail call i32 @strcmp(ptr noundef nonnull dereferenceable(1) @.str.1, ptr noundef nonnull dereferenceable(1) %6) #3
  %.not5 = icmp eq i32 %9, 0
  br i1 %.not5, label %10, label %11

10:                                               ; preds = %8, %4
  tail call void @shell_puts(ptr noundef nonnull @.str.2) #4
  br label %12

11:                                               ; preds = %2, %8
  tail call void @shell_puts(ptr noundef nonnull @.str.3) #4
  br label %12

12:                                               ; preds = %11, %10, %3
  %.0 = phi i32 [ 0, %3 ], [ 1, %11 ], [ 0, %10 ]
  ret i32 %.0
}

; Function Attrs: nounwind uwtable
declare hidden void @ps_print() local_unnamed_addr #0

; Function Attrs: mustprogress nofree nounwind willreturn memory(argmem: read)
declare i32 @strcmp(ptr nocapture noundef, ptr nocapture noundef) local_unnamed_addr #1

declare void @shell_puts(ptr noundef) local_unnamed_addr #2

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 = { mustprogress nofree nounwind willreturn memory(argmem: read) "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 willreturn memory(read) }
attributes #4 = { 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"}


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