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ZAM optimizations for record creation

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includes reworking of managing "auxiliary" information for ZAM instructions
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Vern Paxson 2024-01-18 10:15:29 -08:00 • committed by Arne Welzel
parent 9f94360cfc
commit 91cab9931d
8 changed files with 341 additions and 207 deletions
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9
src/Type.h
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@ -30,10 +30,12 @@ using TableValPtr = IntrusivePtr<TableVal>;
namespace detail {
class Attributes;
class CompositeHash;
class Expr;
class ListExpr;
class Attributes;
class ZAMCompiler;
using ListExprPtr = IntrusivePtr<ListExpr>;
// The following tracks how to initialize a given record field.
@ -734,7 +736,7 @@ private:
// Field initializations that can be deferred to first access,
// beneficial for fields that are separately initialized prior
// to first access. Nil pointers mean "skip initializing the field".
std::vector<std::unique_ptr<detail::FieldInit>> deferred_inits;
std::vector<std::shared_ptr<detail::FieldInit>> deferred_inits;
// Field initializations that need to be done upon record creation,
// rather than deferred. These are expressions whose value might
@ -742,10 +744,11 @@ private:
//
// Such initializations are uncommon, so we represent them using
// <fieldoffset, init> pairs.
std::vector<std::pair<int, std::unique_ptr<detail::FieldInit>>> creation_inits;
std::vector<std::pair<int, std::shared_ptr<detail::FieldInit>>> creation_inits;
class CreationInitsOptimizer;
friend zeek::RecordVal;
friend zeek::detail::ZAMCompiler;
const auto& DeferredInits() const { return deferred_inits; }
const auto& CreationInits() const { return creation_inits; }