; LLVM IR from rociodellasala/TP3_SO :: Kernel (time)

; 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: nounwind uwtable
define dso_local void @calculateTime(ptr noundef %0, ptr noundef %1, ptr noundef %2) #0 {
  %4 = alloca ptr, align 8
  %5 = alloca ptr, align 8
  %6 = alloca ptr, align 8
  store ptr %0, ptr %4, align 8, !tbaa !5
  store ptr %1, ptr %5, align 8, !tbaa !5
  store ptr %2, ptr %6, align 8, !tbaa !5
  %7 = call i32 (...) @hour()
  %8 = load ptr, ptr %4, align 8, !tbaa !5
  store i32 %7, ptr %8, align 4, !tbaa !9
  %9 = call i32 (...) @minutes()
  %10 = load ptr, ptr %5, align 8, !tbaa !5
  store i32 %9, ptr %10, align 4, !tbaa !9
  %11 = call i32 (...) @seconds()
  %12 = load ptr, ptr %6, align 8, !tbaa !5
  store i32 %11, ptr %12, align 4, !tbaa !9
  %13 = load ptr, ptr %4, align 8, !tbaa !5
  %14 = load i32, ptr %13, align 4, !tbaa !9
  %15 = icmp eq i32 %14, 1
  br i1 %15, label %16, label %18

16:                                               ; preds = %3
  %17 = load ptr, ptr %4, align 8, !tbaa !5
  store i32 22, ptr %17, align 4, !tbaa !9
  br label %37

18:                                               ; preds = %3
  %19 = load ptr, ptr %4, align 8, !tbaa !5
  %20 = load i32, ptr %19, align 4, !tbaa !9
  %21 = icmp eq i32 %20, 2
  br i1 %21, label %22, label %24

22:                                               ; preds = %18
  %23 = load ptr, ptr %4, align 8, !tbaa !5
  store i32 23, ptr %23, align 4, !tbaa !9
  br label %36

24:                                               ; preds = %18
  %25 = load ptr, ptr %4, align 8, !tbaa !5
  %26 = load i32, ptr %25, align 4, !tbaa !9
  %27 = icmp eq i32 %26, 0
  br i1 %27, label %28, label %30

28:                                               ; preds = %24
  %29 = load ptr, ptr %4, align 8, !tbaa !5
  store i32 21, ptr %29, align 4, !tbaa !9
  br label %35

30:                                               ; preds = %24
  %31 = load ptr, ptr %4, align 8, !tbaa !5
  %32 = load i32, ptr %31, align 4, !tbaa !9
  %33 = sub nsw i32 %32, 3
  %34 = load ptr, ptr %4, align 8, !tbaa !5
  store i32 %33, ptr %34, align 4, !tbaa !9
  br label %35

35:                                               ; preds = %30, %28
  br label %36

36:                                               ; preds = %35, %22
  br label %37

37:                                               ; preds = %36, %16
  ret void
}

declare i32 @hour(...) #1

declare i32 @minutes(...) #1

declare i32 @seconds(...) #1

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 = { "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 = !{!"any pointer", !7, i64 0}
!7 = !{!"omnipotent char", !8, i64 0}
!8 = !{!"Simple C/C++ TBAA"}
!9 = !{!10, !10, i64 0}
!10 = !{!"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: nounwind uwtable
define dso_local void @calculateTime(ptr nocapture noundef %0, ptr nocapture noundef writeonly %1, ptr nocapture noundef writeonly %2) local_unnamed_addr #0 {
  %4 = tail call i32 (...) @hour() #2
  store i32 %4, ptr %0, align 4, !tbaa !5
  %5 = tail call i32 (...) @minutes() #2
  store i32 %5, ptr %1, align 4, !tbaa !5
  %6 = tail call i32 (...) @seconds() #2
  store i32 %6, ptr %2, align 4, !tbaa !5
  %7 = load i32, ptr %0, align 4, !tbaa !5
  %8 = icmp ult i32 %7, 3
  %. = select i1 %8, i32 21, i32 -3
  %switch.offset = add nsw i32 %7, %.
  store i32 %switch.offset, ptr %0, align 4, !tbaa !5
  ret void
}

declare i32 @hour(...) local_unnamed_addr #1

declare i32 @minutes(...) local_unnamed_addr #1

declare i32 @seconds(...) local_unnamed_addr #1

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


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