; LLVM IR from CerebusOSS/CereLink :: Central/Instrument.ll (ZN10Instrument7StandbyEv)

; 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.cbPKT_SYSINFO = type { %struct.cbPKT_HEADER, i32, i32, i32, i32, i32, i32 }
%struct.cbPKT_HEADER = type { i64, i16, i16, i16, i8, i8 }

; Function Attrs: nocallback nofree nosync nounwind willreturn memory(argmem: readwrite)
declare void @llvm.lifetime.start.p0(i64 immarg, ptr nocapture) #0

; Function Attrs: nocallback nofree nosync nounwind willreturn memory(argmem: readwrite)
declare void @llvm.lifetime.end.p0(i64 immarg, ptr nocapture) #0

; Function Attrs: mustprogress uwtable
declare dso_local noundef i32 @_ZN10Instrument4SendEPv(ptr noundef nonnull align 8 dereferenceable(12516), ptr noundef) #1 align 2

; Function Attrs: mustprogress uwtable
define dso_local void @_ZN10Instrument7StandbyEv(ptr noundef nonnull align 8 dereferenceable(12516) %0) #1 align 2 {
  %2 = alloca ptr, align 8
  %3 = alloca %struct.cbPKT_SYSINFO, align 1
  store ptr %0, ptr %2, align 8, !tbaa !5
  %4 = load ptr, ptr %2, align 8
  call void @llvm.lifetime.start.p0(i64 40, ptr %3) #2
  %5 = getelementptr inbounds %struct.cbPKT_SYSINFO, ptr %3, i32 0, i32 0
  %6 = getelementptr inbounds %struct.cbPKT_HEADER, ptr %5, i32 0, i32 0
  store i64 0, ptr %6, align 1, !tbaa !9
  %7 = getelementptr inbounds %struct.cbPKT_SYSINFO, ptr %3, i32 0, i32 0
  %8 = getelementptr inbounds %struct.cbPKT_HEADER, ptr %7, i32 0, i32 1
  store i16 -32768, ptr %8, align 1, !tbaa !15
  %9 = getelementptr inbounds %struct.cbPKT_SYSINFO, ptr %3, i32 0, i32 0
  %10 = getelementptr inbounds %struct.cbPKT_HEADER, ptr %9, i32 0, i32 2
  store i16 146, ptr %10, align 1, !tbaa !16
  %11 = getelementptr inbounds %struct.cbPKT_SYSINFO, ptr %3, i32 0, i32 0
  %12 = getelementptr inbounds %struct.cbPKT_HEADER, ptr %11, i32 0, i32 3
  store i16 6, ptr %12, align 1, !tbaa !17
  %13 = getelementptr inbounds %struct.cbPKT_SYSINFO, ptr %3, i32 0, i32 5
  store i32 20, ptr %13, align 1, !tbaa !18
  %14 = call noundef i32 @_ZN10Instrument4SendEPv(ptr noundef nonnull align 8 dereferenceable(12516) %4, ptr noundef %3)
  call void @llvm.lifetime.end.p0(i64 40, ptr %3) #2
  ret void
}

attributes #0 = { nocallback nofree nosync nounwind willreturn memory(argmem: readwrite) }
attributes #1 = { mustprogress 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 #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 = !{!"any pointer", !7, i64 0}
!7 = !{!"omnipotent char", !8, i64 0}
!8 = !{!"Simple C++ TBAA"}
!9 = !{!10, !12, i64 0}
!10 = !{!"_ZTS13cbPKT_SYSINFO", !11, i64 0, !14, i64 16, !14, i64 20, !14, i64 24, !14, i64 28, !14, i64 32, !14, i64 36}
!11 = !{!"_ZTS12cbPKT_HEADER", !12, i64 0, !13, i64 8, !13, i64 10, !13, i64 12, !7, i64 14, !7, i64 15}
!12 = !{!"long", !7, i64 0}
!13 = !{!"short", !7, i64 0}
!14 = !{!"int", !7, i64 0}
!15 = !{!10, !13, i64 8}
!16 = !{!10, !13, i64 10}
!17 = !{!10, !13, i64 12}
!18 = !{!10, !14, i64 32}


; 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"

%struct.cbPKT_SYSINFO = type { %struct.cbPKT_HEADER, i32, i32, i32, i32, i32, i32 }
%struct.cbPKT_HEADER = type { i64, i16, i16, i16, i8, i8 }

; Function Attrs: mustprogress nocallback nofree nosync nounwind willreturn memory(argmem: readwrite)
declare void @llvm.lifetime.start.p0(i64 immarg, ptr nocapture) #0

; Function Attrs: mustprogress nocallback nofree nosync nounwind willreturn memory(argmem: readwrite)
declare void @llvm.lifetime.end.p0(i64 immarg, ptr nocapture) #0

; Function Attrs: mustprogress uwtable
declare dso_local noundef i32 @_ZN10Instrument4SendEPv(ptr noundef nonnull align 8 dereferenceable(12516), ptr noundef) local_unnamed_addr #1 align 2

; Function Attrs: mustprogress uwtable
define dso_local void @_ZN10Instrument7StandbyEv(ptr noundef nonnull align 8 dereferenceable(12516) %0) local_unnamed_addr #1 align 2 {
  %2 = alloca %struct.cbPKT_SYSINFO, align 8
  call void @llvm.lifetime.start.p0(i64 40, ptr nonnull %2) #2
  store i64 0, ptr %2, align 8, !tbaa !5
  %3 = getelementptr inbounds i8, ptr %2, i64 8
  store i16 -32768, ptr %3, align 8, !tbaa !13
  %4 = getelementptr inbounds i8, ptr %2, i64 10
  store i16 146, ptr %4, align 2, !tbaa !14
  %5 = getelementptr inbounds i8, ptr %2, i64 12
  store i16 6, ptr %5, align 4, !tbaa !15
  %6 = getelementptr inbounds i8, ptr %2, i64 32
  store i32 20, ptr %6, align 8, !tbaa !16
  %7 = call noundef i32 @_ZN10Instrument4SendEPv(ptr noundef nonnull align 8 dereferenceable(12516) %0, ptr noundef nonnull %2)
  call void @llvm.lifetime.end.p0(i64 40, ptr nonnull %2) #2
  ret void
}

attributes #0 = { mustprogress nocallback nofree nosync nounwind willreturn memory(argmem: readwrite) }
attributes #1 = { mustprogress 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 #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, !8, i64 0}
!6 = !{!"_ZTS13cbPKT_SYSINFO", !7, i64 0, !12, i64 16, !12, i64 20, !12, i64 24, !12, i64 28, !12, i64 32, !12, i64 36}
!7 = !{!"_ZTS12cbPKT_HEADER", !8, i64 0, !11, i64 8, !11, i64 10, !11, i64 12, !9, i64 14, !9, i64 15}
!8 = !{!"long", !9, i64 0}
!9 = !{!"omnipotent char", !10, i64 0}
!10 = !{!"Simple C++ TBAA"}
!11 = !{!"short", !9, i64 0}
!12 = !{!"int", !9, i64 0}
!13 = !{!6, !11, i64 8}
!14 = !{!6, !11, i64 10}
!15 = !{!6, !11, i64 12}
!16 = !{!6, !12, i64 32}


; Effective O3 passes: EarlyCSEPass,GlobalOptPass,InferAlignmentPass,InferFunctionAttrsPass,InstCombinePass,SROAPass