; LLVM IR from rociodellasala/TP3_SO :: Userland/threadTest (threadTest)

; 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"

@flagTask1 = external dso_local global i32, align 4
@.str = external hidden unnamed_addr constant [17 x i8], align 1

; Function Attrs: nounwind uwtable
define dso_local void @functionTask1() #0 {
  br label %1

1:                                                ; preds = %4, %0
  %2 = load i32, ptr @flagTask1, align 4, !tbaa !5
  %3 = icmp ne i32 %2, 0
  br i1 %3, label %4, label %5

4:                                                ; preds = %1
  br label %1, !llvm.loop !9

5:                                                ; preds = %1
  call void (ptr, ...) @printf(ptr noundef @.str)
  call void (...) @exitThread()
  ret void
}

declare void @printf(ptr noundef, ...) #1

declare void @exitThread(...) #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 = !{!"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"

@flagTask1 = external dso_local local_unnamed_addr global i32, align 4
@.str = external hidden unnamed_addr constant [17 x i8], align 1

; Function Attrs: nounwind uwtable
define dso_local void @functionTask1() local_unnamed_addr #0 {
  %.pr = load i32, ptr @flagTask1, align 4, !tbaa !5
  %.not = icmp eq i32 %.pr, 0
  br i1 %.not, label %1, label %.split, !llvm.loop !9

.split:                                           ; preds = %0, %.split
  br label %.split

1:                                                ; preds = %0
  tail call void (ptr, ...) @printf(ptr noundef nonnull @.str) #2
  tail call void (...) @exitThread() #2
  ret void
}

declare void @printf(ptr noundef, ...) local_unnamed_addr #1

declare void @exitThread(...) 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"}
!9 = distinct !{!9, !10}
!10 = !{!"llvm.loop.mustprogress"}


; Effective O3 passes: CorrelatedValuePropagationPass,GlobalOptPass,InstCombinePass,JumpThreadingPass,LICMPass,LoopSimplifyPass,LoopUnrollPass,SimplifyCFGPass,TailCallElimPass