absl::Span<Predicate* const> operands, bool is_and) {
  Predicate::Kind pred_kind =
      is_and ? Predicate::Kind::kAnd : Predicate::Kind::kOr;

  IncrementStackDepth stack_frame(this);
  if (stack_frame.HasOverflowed()) {
    return MakeInternedAndOr(
        std::vector<Predicate*>(operands.begin(), operands.end()), pred_kind);
  }

  Predicate::Kind other_pred_kind =
      is_and ? Predicate::Kind::kOr : Predicate::Kind::kAnd;

	AAMCASH:    0x070B1 << 15, // amcas.h
	AAMCASW:    0x070B2 << 15, // amcas.w
	AAMCASV:    0x070B3 << 15, // amcas.d
	AAMADDW:    0x070C2 << 15, // amadd.w
	AAMADDV:    0x070C3 << 15, // amadd.d
	AAMANDW:    0x070C4 << 15, // amand.w
	AAMANDV:    0x070C5 << 15, // amand.d
	AAMORW:     0x070C6 << 15, // amor.w
	AAMORV:     0x070C7 << 15, // amor.d
	AAMXORW:    0x070C8 << 15, // amxor.w
	AAMXORV:    0x070C9 << 15, // amxor.d

		syntax.Div: allNumeric,
		syntax.Rem: allInteger,

		syntax.And:    allInteger,
		syntax.Or:     allInteger,
		syntax.Xor:    allInteger,
		syntax.AndNot: allInteger,

		syntax.AndAnd: allBoolean,
		syntax.OrOr:   allBoolean,
	}
}

// If e != nil, it must be the binary expression; it may be nil for non-constant expressions

	AFADDD & obj.AMask:   rFFFEncoding,
	AFSUBD & obj.AMask:   rFFFEncoding,
	AFMULD & obj.AMask:   rFFFEncoding,
	AFDIVD & obj.AMask:   rFFFEncoding,
	AFMIND & obj.AMask:   rFFFEncoding,
	AFMAXD & obj.AMask:   rFFFEncoding,
	AFSQRTD & obj.AMask:  rFFFEncoding,
	AFMADDD & obj.AMask:  rFFFFEncoding,
	AFMSUBD & obj.AMask:  rFFFFEncoding,
	AFNMSUBD & obj.AMask: rFFFFEncoding,

 * services from this registry or its parents.</li>
 *
 * </ul>
 *
 * <p>Service instances are created on demand. {@link #getFactory(Class)} looks for a service instance which implements {@code Factory<T>} where {@code T} is the expected type.</p>
 *

	// map of regular username to credentials
	iamUsersMap map[string]UserIdentity
	// map of regular username to policy names
	iamUserPolicyMap *xsync.MapOf[string, MappedPolicy]

	// STS accounts are loaded on demand and not via the periodic IAM reload.
	// map of STS access key to credentials
	iamSTSAccountsMap map[string]UserIdentity
	// map of STS access key to policy names
	iamSTSPolicyMap *xsync.MapOf[string, MappedPolicy]