; LLVM IR from cvra/robot-software :: lib/msgbus (messagebus)

; 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"

%struct.topic_s = type { ptr, i64, ptr, ptr, [65 x i8], i8, ptr, ptr, ptr, %struct.messagebus_topic_stats_t }
%struct.messagebus_topic_stats_t = type { i32 }

declare void @messagebus_lock_acquire(ptr noundef) #0

; Function Attrs: nocallback nofree nosync nounwind willreturn memory(argmem: readwrite)
declare void @llvm.lifetime.start.p0(i64 immarg, ptr nocapture) #1

; Function Attrs: nocallback nofree nosync nounwind willreturn memory(argmem: readwrite)
declare void @llvm.lifetime.end.p0(i64 immarg, ptr nocapture) #1

declare void @messagebus_lock_release(ptr noundef) #0

; Function Attrs: nocallback nofree nounwind willreturn memory(argmem: readwrite)
declare void @llvm.memcpy.p0.p0.i64(ptr noalias nocapture writeonly, ptr noalias nocapture readonly, i64, i1 immarg) #2

; Function Attrs: nounwind uwtable
define dso_local zeroext i1 @messagebus_topic_read(ptr noundef %0, ptr noundef %1, i64 noundef %2) #3 {
  %4 = alloca ptr, align 8
  %5 = alloca ptr, align 8
  %6 = alloca i64, align 8
  %7 = alloca i8, align 1
  store ptr %0, ptr %4, align 8, !tbaa !5
  store ptr %1, ptr %5, align 8, !tbaa !5
  store i64 %2, ptr %6, align 8, !tbaa !9
  call void @llvm.lifetime.start.p0(i64 1, ptr %7) #4
  store i8 0, ptr %7, align 1, !tbaa !11
  %8 = load ptr, ptr %4, align 8, !tbaa !5
  %9 = getelementptr inbounds %struct.topic_s, ptr %8, i32 0, i32 2
  %10 = load ptr, ptr %9, align 8, !tbaa !13
  call void @messagebus_lock_acquire(ptr noundef %10)
  %11 = load ptr, ptr %4, align 8, !tbaa !5
  %12 = getelementptr inbounds %struct.topic_s, ptr %11, i32 0, i32 5
  %13 = load i8, ptr %12, align 1, !tbaa !17, !range !18, !noundef !19
  %14 = trunc i8 %13 to i1
  br i1 %14, label %15, label %21

15:                                               ; preds = %3
  store i8 1, ptr %7, align 1, !tbaa !11
  %16 = load ptr, ptr %5, align 8, !tbaa !5
  %17 = load ptr, ptr %4, align 8, !tbaa !5
  %18 = getelementptr inbounds %struct.topic_s, ptr %17, i32 0, i32 0
  %19 = load ptr, ptr %18, align 8, !tbaa !20
  %20 = load i64, ptr %6, align 8, !tbaa !9
  call void @llvm.memcpy.p0.p0.i64(ptr align 1 %16, ptr align 1 %19, i64 %20, i1 false)
  br label %21

21:                                               ; preds = %15, %3
  %22 = load ptr, ptr %4, align 8, !tbaa !5
  %23 = getelementptr inbounds %struct.topic_s, ptr %22, i32 0, i32 2
  %24 = load ptr, ptr %23, align 8, !tbaa !13
  call void @messagebus_lock_release(ptr noundef %24)
  %25 = load i8, ptr %7, align 1, !tbaa !11, !range !18, !noundef !19
  %26 = trunc i8 %25 to i1
  call void @llvm.lifetime.end.p0(i64 1, ptr %7) #4
  ret i1 %26
}

attributes #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 = { nocallback nofree nosync nounwind willreturn memory(argmem: readwrite) }
attributes #2 = { nocallback nofree nounwind willreturn memory(argmem: readwrite) }
attributes #3 = { 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 #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"}
!9 = !{!10, !10, i64 0}
!10 = !{!"long", !7, i64 0}
!11 = !{!12, !12, i64 0}
!12 = !{!"_Bool", !7, i64 0}
!13 = !{!14, !6, i64 16}
!14 = !{!"topic_s", !6, i64 0, !10, i64 8, !6, i64 16, !6, i64 24, !7, i64 32, !12, i64 97, !6, i64 104, !6, i64 112, !6, i64 120, !15, i64 128}
!15 = !{!"", !16, i64 0}
!16 = !{!"int", !7, i64 0}
!17 = !{!14, !12, i64 97}
!18 = !{i8 0, i8 2}
!19 = !{}
!20 = !{!14, !6, 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"

declare void @messagebus_lock_acquire(ptr noundef) local_unnamed_addr #0

declare void @messagebus_lock_release(ptr noundef) local_unnamed_addr #0

; Function Attrs: mustprogress nocallback nofree nounwind willreturn memory(argmem: readwrite)
declare void @llvm.memcpy.p0.p0.i64(ptr noalias nocapture writeonly, ptr noalias nocapture readonly, i64, i1 immarg) #1

; Function Attrs: nounwind uwtable
define dso_local noundef zeroext i1 @messagebus_topic_read(ptr nocapture noundef readonly %0, ptr nocapture noundef writeonly %1, i64 noundef %2) local_unnamed_addr #2 {
  %4 = getelementptr inbounds i8, ptr %0, i64 16
  %5 = load ptr, ptr %4, align 8, !tbaa !5
  tail call void @messagebus_lock_acquire(ptr noundef %5) #3
  %6 = getelementptr inbounds i8, ptr %0, i64 97
  %7 = load i8, ptr %6, align 1, !tbaa !14, !range !15, !noundef !16
  %8 = trunc nuw i8 %7 to i1
  br i1 %8, label %9, label %11

9:                                                ; preds = %3
  %10 = load ptr, ptr %0, align 8, !tbaa !17
  tail call void @llvm.memcpy.p0.p0.i64(ptr align 1 %1, ptr align 1 %10, i64 %2, i1 false)
  br label %11

11:                                               ; preds = %9, %3
  %12 = load ptr, ptr %4, align 8, !tbaa !5
  tail call void @messagebus_lock_release(ptr noundef %12) #3
  ret i1 %8
}

attributes #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 nocallback nofree nounwind willreturn memory(argmem: readwrite) }
attributes #2 = { 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 #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, !7, i64 16}
!6 = !{!"topic_s", !7, i64 0, !10, i64 8, !7, i64 16, !7, i64 24, !8, i64 32, !11, i64 97, !7, i64 104, !7, i64 112, !7, i64 120, !12, i64 128}
!7 = !{!"any pointer", !8, i64 0}
!8 = !{!"omnipotent char", !9, i64 0}
!9 = !{!"Simple C/C++ TBAA"}
!10 = !{!"long", !8, i64 0}
!11 = !{!"_Bool", !8, i64 0}
!12 = !{!"", !13, i64 0}
!13 = !{!"int", !8, i64 0}
!14 = !{!6, !11, i64 97}
!15 = !{i8 0, i8 2}
!16 = !{}
!17 = !{!6, !7, i64 0}


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