; LLVM IR from HRI-EU/Rcs :: src/RcsCore/Rcs_filters.ll (ZN3Rcs12RampFilterND7iterateEv)

; 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.Rcs::SecondOrderLPFND" = type { ptr, ptr, i64 }

; 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: 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

; Function Attrs: nobuiltin nounwind
declare void @_ZdaPv(ptr noundef) #3

; Function Attrs: mustprogress uwtable
define dso_local void @_ZN3Rcs12RampFilterND7iterateEv(ptr noundef nonnull align 8 dereferenceable(40) %0) unnamed_addr #4 align 2 {
  %2 = alloca ptr, align 8
  %3 = alloca ptr, align 8
  store ptr %0, ptr %2, align 8, !tbaa !5
  %4 = load ptr, ptr %2, align 8
  call void @llvm.lifetime.start.p0(i64 8, ptr %3) #5
  %5 = getelementptr inbounds %"class.Rcs::SecondOrderLPFND", ptr %4, i32 0, i32 2
  %6 = load i64, ptr %5, align 8, !tbaa !9
  %7 = call { i64, i1 } @llvm.umul.with.overflow.i64(i64 %6, i64 8)
  %8 = extractvalue { i64, i1 } %7, 1
  %9 = extractvalue { i64, i1 } %7, 0
  %10 = select i1 %8, i64 -1, i64 %9
  %11 = call noalias noundef nonnull ptr @_Znam(i64 noundef %10) #6
  store ptr %11, ptr %3, align 8, !tbaa !5
  %12 = load ptr, ptr %3, align 8, !tbaa !5
  %13 = load ptr, ptr %4, align 8, !tbaa !12
  %14 = getelementptr inbounds ptr, ptr %13, i64 7
  %15 = load ptr, ptr %14, align 8
  call void %15(ptr noundef nonnull align 8 dereferenceable(40) %4, ptr noundef %12)
  %16 = load ptr, ptr %3, align 8, !tbaa !5
  %17 = icmp eq ptr %16, null
  br i1 %17, label %19, label %18

18:                                               ; preds = %1
  call void @_ZdaPv(ptr noundef %16) #7
  br label %19

19:                                               ; preds = %18, %1
  call void @llvm.lifetime.end.p0(i64 8, ptr %3) #5
  ret void
}

attributes #0 = { nocallback nofree nosync nounwind willreturn memory(argmem: readwrite) }
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 = { nobuiltin nounwind "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 = { 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 #5 = { nounwind }
attributes #6 = { builtin allocsize(0) }
attributes #7 = { builtin 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, !11, i64 16}
!10 = !{!"_ZTSN3Rcs16SecondOrderLPFNDE", !6, i64 8, !11, i64 16}
!11 = !{!"long", !7, i64 0}
!12 = !{!13, !13, i64 0}
!13 = !{!"vtable pointer", !8, 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"

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

; Function Attrs: nobuiltin nounwind
declare void @_ZdaPv(ptr noundef) local_unnamed_addr #1

; Function Attrs: mustprogress uwtable
define dso_local void @_ZN3Rcs12RampFilterND7iterateEv(ptr noundef nonnull align 8 dereferenceable(40) %0) unnamed_addr #2 align 2 {
  %2 = getelementptr inbounds i8, ptr %0, i64 16
  %3 = load i64, ptr %2, align 8, !tbaa !5
  %4 = icmp ugt i64 %3, 2305843009213693951
  %5 = shl i64 %3, 3
  %6 = select i1 %4, i64 -1, i64 %5
  %7 = tail call noalias noundef nonnull ptr @_Znam(i64 noundef %6) #3
  %8 = load ptr, ptr %0, align 8, !tbaa !11
  %9 = getelementptr inbounds i8, ptr %8, i64 56
  %10 = load ptr, ptr %9, align 8
  tail call void %10(ptr noundef nonnull align 8 dereferenceable(40) %0, ptr noundef nonnull %7)
  tail call void @_ZdaPv(ptr noundef nonnull %7) #4
  ret void
}

attributes #0 = { 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 #1 = { nobuiltin nounwind "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 = { 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 #3 = { builtin allocsize(0) }
attributes #4 = { builtin 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, !10, i64 16}
!6 = !{!"_ZTSN3Rcs16SecondOrderLPFNDE", !7, i64 8, !10, i64 16}
!7 = !{!"any pointer", !8, i64 0}
!8 = !{!"omnipotent char", !9, i64 0}
!9 = !{!"Simple C++ TBAA"}
!10 = !{!"long", !8, i64 0}
!11 = !{!12, !12, i64 0}
!12 = !{!"vtable pointer", !9, i64 0}


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