; LLVM IR from MiRoboticsLab/cyberdog_ros2 :: cyberdog_interaction/cyberdog_touch/src (InputEventReader)

; 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"

%class.InputEventCircularReader = type { ptr, ptr, ptr, ptr, i64 }
%struct.input_event = type { %struct.timeval, i16, i16, i32 }
%struct.timeval = type { i64, i64 }

; Function Attrs: mustprogress uwtable
define dso_local void @_ZN24InputEventCircularReaderC2Em(ptr noundef nonnull align 8 dereferenceable(40) %0, i64 noundef %1) unnamed_addr #0 align 2 {
  %3 = alloca ptr, align 8
  %4 = alloca i64, align 8
  store ptr %0, ptr %3, align 8, !tbaa !5
  store i64 %1, ptr %4, align 8, !tbaa !9
  %5 = load ptr, ptr %3, align 8
  %6 = getelementptr inbounds %class.InputEventCircularReader, ptr %5, i32 0, i32 0
  %7 = load i64, ptr %4, align 8, !tbaa !9
  %8 = mul i64 %7, 2
  %9 = call { i64, i1 } @llvm.umul.with.overflow.i64(i64 %8, i64 24)
  %10 = extractvalue { i64, i1 } %9, 1
  %11 = extractvalue { i64, i1 } %9, 0
  %12 = select i1 %10, i64 -1, i64 %11
  %13 = call noalias noundef nonnull ptr @_Znam(i64 noundef %12) #3
  store ptr %13, ptr %6, align 8, !tbaa !11
  %14 = getelementptr inbounds %class.InputEventCircularReader, ptr %5, i32 0, i32 1
  %15 = getelementptr inbounds %class.InputEventCircularReader, ptr %5, i32 0, i32 0
  %16 = load ptr, ptr %15, align 8, !tbaa !11
  %17 = load i64, ptr %4, align 8, !tbaa !9
  %18 = getelementptr inbounds %struct.input_event, ptr %16, i64 %17
  store ptr %18, ptr %14, align 8, !tbaa !13
  %19 = getelementptr inbounds %class.InputEventCircularReader, ptr %5, i32 0, i32 2
  %20 = getelementptr inbounds %class.InputEventCircularReader, ptr %5, i32 0, i32 0
  %21 = load ptr, ptr %20, align 8, !tbaa !11
  store ptr %21, ptr %19, align 8, !tbaa !14
  %22 = getelementptr inbounds %class.InputEventCircularReader, ptr %5, i32 0, i32 3
  %23 = getelementptr inbounds %class.InputEventCircularReader, ptr %5, i32 0, i32 0
  %24 = load ptr, ptr %23, align 8, !tbaa !11
  store ptr %24, ptr %22, align 8, !tbaa !15
  %25 = getelementptr inbounds %class.InputEventCircularReader, ptr %5, i32 0, i32 4
  %26 = load i64, ptr %4, align 8, !tbaa !9
  store i64 %26, ptr %25, align 8, !tbaa !16
  ret void
}

; Function Attrs: nocallback nofree nosync nounwind speculatable willreturn memory(none)
declare { i64, i1 } @llvm.umul.with.overflow.i64(i64, i64) #1

; Function Attrs: nobuiltin allocsize(0)
declare noundef nonnull ptr @_Znam(i64 noundef) #2

attributes #0 = { 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 #1 = { nocallback nofree nosync nounwind speculatable willreturn memory(none) }
attributes #2 = { nobuiltin allocsize(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 = { builtin allocsize(0) }

!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, !10, i64 0}
!10 = !{!"long", !7, i64 0}
!11 = !{!12, !6, i64 0}
!12 = !{!"_ZTS24InputEventCircularReader", !6, i64 0, !6, i64 8, !6, i64 16, !6, i64 24, !10, i64 32}
!13 = !{!12, !6, i64 8}
!14 = !{!12, !6, i64 16}
!15 = !{!12, !6, i64 24}
!16 = !{!12, !10, 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.input_event = type { %struct.timeval, i16, i16, i32 }
%struct.timeval = type { i64, i64 }

; Function Attrs: mustprogress uwtable
define dso_local void @_ZN24InputEventCircularReaderC2Em(ptr nocapture noundef nonnull writeonly align 8 dereferenceable(40) %0, i64 noundef %1) unnamed_addr #0 align 2 {
  %3 = shl i64 %1, 1
  %4 = tail call { i64, i1 } @llvm.umul.with.overflow.i64(i64 %3, i64 24)
  %5 = extractvalue { i64, i1 } %4, 1
  %6 = extractvalue { i64, i1 } %4, 0
  %7 = select i1 %5, i64 -1, i64 %6
  %8 = tail call noalias noundef nonnull ptr @_Znam(i64 noundef %7) #3
  store ptr %8, ptr %0, align 8, !tbaa !5
  %9 = getelementptr inbounds i8, ptr %0, i64 8
  %10 = getelementptr inbounds %struct.input_event, ptr %8, i64 %1
  store ptr %10, ptr %9, align 8, !tbaa !11
  %11 = getelementptr inbounds i8, ptr %0, i64 16
  store ptr %8, ptr %11, align 8, !tbaa !12
  %12 = getelementptr inbounds i8, ptr %0, i64 24
  store ptr %8, ptr %12, align 8, !tbaa !13
  %13 = getelementptr inbounds i8, ptr %0, i64 32
  store i64 %1, ptr %13, align 8, !tbaa !14
  ret void
}

; Function Attrs: mustprogress nocallback nofree nosync nounwind speculatable willreturn memory(none)
declare { i64, i1 } @llvm.umul.with.overflow.i64(i64, i64) #1

; Function Attrs: nobuiltin allocsize(0)
declare noundef nonnull ptr @_Znam(i64 noundef) local_unnamed_addr #2

attributes #0 = { 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 #1 = { mustprogress nocallback nofree nosync nounwind speculatable willreturn memory(none) }
attributes #2 = { nobuiltin allocsize(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 = { builtin allocsize(0) }

!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 0}
!6 = !{!"_ZTS24InputEventCircularReader", !7, i64 0, !7, i64 8, !7, i64 16, !7, i64 24, !10, i64 32}
!7 = !{!"any pointer", !8, i64 0}
!8 = !{!"omnipotent char", !9, i64 0}
!9 = !{!"Simple C++ TBAA"}
!10 = !{!"long", !8, i64 0}
!11 = !{!6, !7, i64 8}
!12 = !{!6, !7, i64 16}
!13 = !{!6, !7, i64 24}
!14 = !{!6, !10, i64 32}


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