; LLVM IR from DmitrySoshnikov/mmgc :: src/Value/Value.ll (ZN5Value7getTypeEv)

; 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.Value = type { i32 }

@_ZN5Value4TRUEE = external dso_local constant i32, align 4
@_ZN5Value5FALSEE = external dso_local constant i32, align 4

; Function Attrs: mustprogress nounwind uwtable
define dso_local noundef i32 @_ZN5Value7getTypeEv(ptr noundef nonnull align 4 dereferenceable(4) %0) #0 align 2 {
  %2 = alloca i32, align 4
  %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.Value, ptr %4, i32 0, i32 0
  %6 = load i32, ptr %5, align 4, !tbaa !9
  %7 = and i32 %6, 1
  %8 = icmp ne i32 %7, 0
  br i1 %8, label %9, label %10

9:                                                ; preds = %1
  store i32 0, ptr %2, align 4
  br label %23

10:                                               ; preds = %1
  %11 = getelementptr inbounds %class.Value, ptr %4, i32 0, i32 0
  %12 = load i32, ptr %11, align 4, !tbaa !9
  %13 = load i32, ptr @_ZN5Value4TRUEE, align 4, !tbaa !12
  %14 = icmp eq i32 %12, %13
  br i1 %14, label %20, label %15

15:                                               ; preds = %10
  %16 = getelementptr inbounds %class.Value, ptr %4, i32 0, i32 0
  %17 = load i32, ptr %16, align 4, !tbaa !9
  %18 = load i32, ptr @_ZN5Value5FALSEE, align 4, !tbaa !12
  %19 = icmp eq i32 %17, %18
  br i1 %19, label %20, label %21

20:                                               ; preds = %15, %10
  store i32 2, ptr %2, align 4
  br label %23

21:                                               ; preds = %15
  br label %22

22:                                               ; preds = %21
  store i32 1, ptr %2, align 4
  br label %23

23:                                               ; preds = %22, %20, %9
  %24 = load i32, ptr %2, align 4
  ret i32 %24
}

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 0}
!10 = !{!"_ZTS5Value", !11, i64 0}
!11 = !{!"int", !7, i64 0}
!12 = !{!11, !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"

@_ZN5Value4TRUEE = external dso_local local_unnamed_addr constant i32, align 4
@_ZN5Value5FALSEE = external dso_local local_unnamed_addr constant i32, align 4

; Function Attrs: mustprogress nofree norecurse nosync nounwind willreturn memory(argmem: read) uwtable
define dso_local noundef range(i32 0, 3) i32 @_ZN5Value7getTypeEv(ptr nocapture noundef nonnull readonly align 4 dereferenceable(4) %0) local_unnamed_addr #0 align 2 {
  %2 = load i32, ptr %0, align 4, !tbaa !5
  %3 = and i32 %2, 1
  %.not = icmp eq i32 %3, 0
  br i1 %.not, label %4, label %9

4:                                                ; preds = %1
  %5 = load i32, ptr @_ZN5Value4TRUEE, align 4, !tbaa !10
  %6 = icmp eq i32 %2, %5
  %7 = load i32, ptr @_ZN5Value5FALSEE, align 4
  %8 = icmp eq i32 %2, %7
  %or.cond = select i1 %6, i1 true, i1 %8
  %spec.select = select i1 %or.cond, i32 2, i32 1
  br label %9

9:                                                ; preds = %4, %1
  %.0 = phi i32 [ 0, %1 ], [ %spec.select, %4 ]
  ret i32 %.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 0}
!6 = !{!"_ZTS5Value", !7, i64 0}
!7 = !{!"int", !8, i64 0}
!8 = !{!"omnipotent char", !9, i64 0}
!9 = !{!"Simple C++ TBAA"}
!10 = !{!7, !7, i64 0}


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