; LLVM IR from NervanaSystems/ngraph :: src/ngraph/interval.ll (ZNK6ngraph8Interval4sizeEv)

; 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.ngraph::Interval" = type { i64, i64 }

; Function Attrs: mustprogress nounwind uwtable
define dso_local noundef i64 @_ZNK6ngraph8Interval4sizeEv(ptr noundef nonnull align 8 dereferenceable(16) %0) #0 align 2 {
  %2 = alloca i64, align 8
  %3 = alloca ptr, align 8
  store ptr %0, ptr %3, align 8, !tbaa !5
  %4 = load ptr, ptr %3, align 8
  %5 = getelementptr inbounds %"class.ngraph::Interval", ptr %4, i32 0, i32 1
  %6 = load i64, ptr %5, align 8, !tbaa !9
  %7 = icmp eq i64 %6, 9223372036854775807
  br i1 %7, label %8, label %14

8:                                                ; preds = %1
  %9 = getelementptr inbounds %"class.ngraph::Interval", ptr %4, i32 0, i32 0
  %10 = load i64, ptr %9, align 8, !tbaa !12
  %11 = icmp eq i64 %10, 9223372036854775807
  %12 = zext i1 %11 to i64
  %13 = select i1 %11, i64 0, i64 9223372036854775807
  store i64 %13, ptr %2, align 8
  br label %21

14:                                               ; preds = %1
  %15 = getelementptr inbounds %"class.ngraph::Interval", ptr %4, i32 0, i32 1
  %16 = load i64, ptr %15, align 8, !tbaa !9
  %17 = getelementptr inbounds %"class.ngraph::Interval", ptr %4, i32 0, i32 0
  %18 = load i64, ptr %17, align 8, !tbaa !12
  %19 = sub nsw i64 %16, %18
  %20 = add nsw i64 %19, 1
  store i64 %20, ptr %2, align 8
  br label %21

21:                                               ; preds = %14, %8
  %22 = load i64, ptr %2, align 8
  ret i64 %22
}

attributes #0 = { mustprogress 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" }

!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 8}
!10 = !{!"_ZTSN6ngraph8IntervalE", !11, i64 0, !11, i64 8}
!11 = !{!"long", !7, i64 0}
!12 = !{!10, !11, 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: mustprogress nofree norecurse nosync nounwind willreturn memory(argmem: read) uwtable
define dso_local noundef range(i64 -9223372036854775807, -9223372036854775808) i64 @_ZNK6ngraph8Interval4sizeEv(ptr nocapture noundef nonnull readonly align 8 dereferenceable(16) %0) local_unnamed_addr #0 align 2 {
  %2 = getelementptr inbounds i8, ptr %0, i64 8
  %3 = load i64, ptr %2, align 8, !tbaa !5
  %4 = icmp eq i64 %3, 9223372036854775807
  %5 = load i64, ptr %0, align 8, !tbaa !10
  %6 = icmp eq i64 %5, 9223372036854775807
  %7 = select i1 %6, i64 0, i64 9223372036854775807
  %8 = add nsw i64 %3, 1
  %9 = sub i64 %8, %5
  %.0 = select i1 %4, i64 %7, i64 %9
  ret i64 %.0
}

attributes #0 = { mustprogress nofree norecurse nosync nounwind willreturn memory(argmem: read) 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" }

!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 8}
!6 = !{!"_ZTSN6ngraph8IntervalE", !7, i64 0, !7, i64 8}
!7 = !{!"long", !8, i64 0}
!8 = !{!"omnipotent char", !9, i64 0}
!9 = !{!"Simple C++ TBAA"}
!10 = !{!6, !7, i64 0}


; Effective O3 passes: CorrelatedValuePropagationPass,EarlyCSEPass,GlobalOptPass,IPSCCPPass,InstCombinePass,PostOrderFunctionAttrsPass,ReassociatePass,SROAPass,SimplifyCFGPass