tree d02a9adfe2c157bf6906275aebf734a357903cd4
parent ae699eaf16f5c007cf255cb3bbef98b2aee7fed7
author justin_michaud@apple.com <justin_michaud@apple.com@268f45cc-cd09-0410-ab3c-d52691b4dbfc> 1558155516 +0000
committer justin_michaud@apple.com <justin_michaud@apple.com@268f45cc-cd09-0410-ab3c-d52691b4dbfc> 1558155516 +0000

[WASM-References] Add support for Anyref in parameters and return types, Ref.null and Ref.is_null for Anyref values.
https://bugs.webkit.org/show_bug.cgi?id=197969

JSTests:

Reviewed by Keith Miller.

Support the anyref type in Builder.js, plus add some extra error logging.
Add new folder for wasm references tests.

* wasm.yaml:
* wasm/Builder.js:
(const._isValidValue):
* wasm/references/anyref_modules.js: Added.
(Call.3.RefIsNull.End.End.WebAssembly.js.ident):
(Call.3.RefIsNull.End.End.WebAssembly.js.make_null):
(Call.3.RefIsNull.End.End.WebAssembly):
(undefined):
* wasm/references/is_null.js: Added.
* wasm/references/is_null_error.js: Added.
* wasm/spec-harness/index.js:
* wasm/wasm.json:

Source/JavaScriptCore:

Reviewed by Keith Miller.

Add a new runtime option for wasm references.
Add support for Anyref as a value type.
Add support for Anyref in parameters and return types of Wasm functions. JSValues are marshalled into/out of wasm Anyrefs
        as a black box, except null which becomes a Nullref value. Nullref is not expressible in the bytecode or in the js API.
Add Ref.null and Ref.is_null for Anyref values. Support for these functions with funcrefs is out of scope.

* runtime/Options.h:
* wasm/WasmAirIRGenerator.cpp:
(JSC::Wasm::AirIRGenerator::tmpForType):
(JSC::Wasm::AirIRGenerator::AirIRGenerator):
(JSC::Wasm::AirIRGenerator::addConstant):
(JSC::Wasm::AirIRGenerator::addRefIsNull):
(JSC::Wasm::AirIRGenerator::addReturn):
* wasm/WasmB3IRGenerator.cpp:
(JSC::Wasm::B3IRGenerator::addRefIsNull):
* wasm/WasmCallingConvention.h:
(JSC::Wasm::CallingConventionAir::marshallArgument const):
(JSC::Wasm::CallingConventionAir::setupCall const):
* wasm/WasmFormat.h:
(JSC::Wasm::isValueType):
* wasm/WasmFunctionParser.h:
(JSC::Wasm::FunctionParser<Context>::FunctionParser):
(JSC::Wasm::FunctionParser<Context>::parseExpression):
(JSC::Wasm::FunctionParser<Context>::parseUnreachableExpression):
* wasm/WasmValidate.cpp:
(JSC::Wasm::Validate::addRefIsNull):
* wasm/generateWasmOpsHeader.py:
(bitSet):
* wasm/js/JSToWasm.cpp:
(JSC::Wasm::createJSToWasmWrapper):
* wasm/js/WasmToJS.cpp:
(JSC::Wasm::wasmToJS):
* wasm/js/WebAssemblyFunction.cpp:
(JSC::callWebAssemblyFunction):
(JSC::WebAssemblyFunction::jsCallEntrypointSlow):
* wasm/wasm.json:

Tools:

Run wasm tests additionally with wasmBBQUsesAir=0.

Reviewed by Keith Miller.

* Scripts/run-jsc-stress-tests:


git-svn-id: http://svn.webkit.org/repository/webkit/trunk@245496 268f45cc-cd09-0410-ab3c-d52691b4dbfc