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LibJS: Remove redundant Store op

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If the property for GetByValue in Generator::load_from_reference
is a calculated value this would be stored in an allocated
register and returned from the function. Not all callers want
this information however, so now only give it out when asked for.

Reduced the instruction count for Kraken/ai-astar.js function
"neighbours" from 214 to 192.
This commit is contained in:
Todderod 2023-11-08 20:21:48 +01:00 • committed by Andreas Kling
parent 13726fd3b7
commit bb9230bbcd
3 changed files with 21 additions and 12 deletions
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6
Userland/Libraries/LibJS/Bytecode/Generator.h
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@ -98,7 +98,11 @@ public:
Register this_value; // [[ThisValue]]
};
CodeGenerationErrorOr<Optional<ReferenceRegisters>> emit_load_from_reference(JS::ASTNode const&);
enum class CollectRegisters {
Yes,
No
};
CodeGenerationErrorOr<Optional<ReferenceRegisters>> emit_load_from_reference(JS::ASTNode const&, CollectRegisters);
CodeGenerationErrorOr<void> emit_store_to_reference(JS::ASTNode const&);
CodeGenerationErrorOr<void> emit_store_to_reference(ReferenceRegisters const&);
CodeGenerationErrorOr<void> emit_delete_reference(JS::ASTNode const&);