; LLVM IR from eclipse-threadx/threadx :: utility/benchmarks/thread_metric (tm_message_processing_test)

; 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"

@tm_message_sent = external dso_local global [4 x i64], align 16
@tm_message_received = external dso_local global [4 x i64], align 16
@tm_message_processing_counter = external dso_local global i64, align 8

; Function Attrs: nounwind uwtable
define dso_local void @tm_message_processing_thread_0_entry() #0 {
  store i64 286335522, ptr @tm_message_sent, align 16, !tbaa !5
  store i64 858997828, ptr getelementptr inbounds ([4 x i64], ptr @tm_message_sent, i64 0, i64 1), align 8, !tbaa !5
  store i64 1431660134, ptr getelementptr inbounds ([4 x i64], ptr @tm_message_sent, i64 0, i64 2), align 16, !tbaa !5
  store i64 2004322440, ptr getelementptr inbounds ([4 x i64], ptr @tm_message_sent, i64 0, i64 3), align 8, !tbaa !5
  br label %1

1:                                                ; preds = %8, %0
  %2 = call i32 @tm_queue_send(i32 noundef 0, ptr noundef @tm_message_sent)
  %3 = call i32 @tm_queue_receive(i32 noundef 0, ptr noundef @tm_message_received)
  %4 = load i64, ptr getelementptr inbounds ([4 x i64], ptr @tm_message_received, i64 0, i64 3), align 8, !tbaa !5
  %5 = load i64, ptr getelementptr inbounds ([4 x i64], ptr @tm_message_sent, i64 0, i64 3), align 8, !tbaa !5
  %6 = icmp ne i64 %4, %5
  br i1 %6, label %7, label %8

7:                                                ; preds = %1
  br label %13

8:                                                ; preds = %1
  %9 = load i64, ptr getelementptr inbounds ([4 x i64], ptr @tm_message_sent, i64 0, i64 3), align 8, !tbaa !5
  %10 = add i64 %9, 1
  store i64 %10, ptr getelementptr inbounds ([4 x i64], ptr @tm_message_sent, i64 0, i64 3), align 8, !tbaa !5
  %11 = load i64, ptr @tm_message_processing_counter, align 8, !tbaa !5
  %12 = add i64 %11, 1
  store i64 %12, ptr @tm_message_processing_counter, align 8, !tbaa !5
  br label %1

13:                                               ; preds = %7
  ret void
}

declare i32 @tm_queue_send(i32 noundef, ptr noundef) #1

declare i32 @tm_queue_receive(i32 noundef, ptr noundef) #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 = !{!"long", !7, i64 0}
!7 = !{!"omnipotent char", !8, i64 0}
!8 = !{!"Simple C/C++ TBAA"}


; 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"

@tm_message_sent = external dso_local global [4 x i64], align 16
@tm_message_received = external dso_local global [4 x i64], align 16
@tm_message_processing_counter = external dso_local local_unnamed_addr global i64, align 8

; Function Attrs: nounwind uwtable
define dso_local void @tm_message_processing_thread_0_entry() local_unnamed_addr #0 {
  store i64 286335522, ptr @tm_message_sent, align 16, !tbaa !5
  store i64 858997828, ptr getelementptr inbounds (i8, ptr @tm_message_sent, i64 8), align 8, !tbaa !5
  store i64 1431660134, ptr getelementptr inbounds (i8, ptr @tm_message_sent, i64 16), align 16, !tbaa !5
  store i64 2004322440, ptr getelementptr inbounds (i8, ptr @tm_message_sent, i64 24), align 8, !tbaa !5
  %1 = tail call i32 @tm_queue_send(i32 noundef 0, ptr noundef nonnull @tm_message_sent) #2
  %2 = tail call i32 @tm_queue_receive(i32 noundef 0, ptr noundef nonnull @tm_message_received) #2
  %3 = load i64, ptr getelementptr inbounds (i8, ptr @tm_message_received, i64 24), align 8, !tbaa !5
  %4 = load i64, ptr getelementptr inbounds (i8, ptr @tm_message_sent, i64 24), align 8, !tbaa !5
  %.not1 = icmp eq i64 %3, %4
  br i1 %.not1, label %.lr.ph, label %._crit_edge

.lr.ph:                                           ; preds = %0, %.lr.ph
  %5 = phi i64 [ %11, %.lr.ph ], [ %3, %0 ]
  %6 = add i64 %5, 1
  store i64 %6, ptr getelementptr inbounds (i8, ptr @tm_message_sent, i64 24), align 8, !tbaa !5
  %7 = load i64, ptr @tm_message_processing_counter, align 8, !tbaa !5
  %8 = add i64 %7, 1
  store i64 %8, ptr @tm_message_processing_counter, align 8, !tbaa !5
  %9 = tail call i32 @tm_queue_send(i32 noundef 0, ptr noundef nonnull @tm_message_sent) #2
  %10 = tail call i32 @tm_queue_receive(i32 noundef 0, ptr noundef nonnull @tm_message_received) #2
  %11 = load i64, ptr getelementptr inbounds (i8, ptr @tm_message_received, i64 24), align 8, !tbaa !5
  %12 = load i64, ptr getelementptr inbounds (i8, ptr @tm_message_sent, i64 24), align 8, !tbaa !5
  %.not = icmp eq i64 %11, %12
  br i1 %.not, label %.lr.ph, label %._crit_edge

._crit_edge:                                      ; preds = %.lr.ph, %0
  ret void
}

declare i32 @tm_queue_send(i32 noundef, ptr noundef) local_unnamed_addr #1

declare i32 @tm_queue_receive(i32 noundef, ptr noundef) 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 = !{!"long", !7, i64 0}
!7 = !{!"omnipotent char", !8, i64 0}
!8 = !{!"Simple C/C++ TBAA"}


; Effective O3 passes: EarlyCSEPass,GVNPass,GlobalOptPass,InstCombinePass,JumpThreadingPass,LoopRotatePass,LoopSimplifyPass,LoopUnrollPass,SimplifyCFGPass,TailCallElimPass