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Issue #1691 - Part 5: Don't pre-create module metadata object when compiling. https://bugzilla.mozilla.org/show_bug.cgi?id=1489477

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(cherry picked from commit d83bad49f6b03894548fbf85fc18ad7e8cc19a93)
This commit is contained in:
Brian Smith 2023-04-09 09:49:27 -05:00 • committed by roytam1
commit c965fbdd10
11 changed files with 81 additions and 11 deletions
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18
js/src/jit/BaselineCompiler.cpp
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@ -4695,17 +4695,27 @@ BaselineCompiler::emit_JSOP_JUMPTARGET()
return true;
}
typedef JSObject* (*GetOrCreateModuleMetaObjectFn)(JSContext*, HandleObject);
static const VMFunction GetOrCreateModuleMetaObjectInfo =
FunctionInfo<GetOrCreateModuleMetaObjectFn>(js::GetOrCreateModuleMetaObject,
"GetOrCreateModuleMetaObject");
bool
BaselineCompiler::emit_JSOP_IMPORTMETA()
{
RootedModuleObject module(cx, GetModuleObjectForScript(script));
MOZ_ASSERT(module);
JSObject* metaObject = GetOrCreateModuleMetaObject(cx, module);
if (!metaObject)
return false;
frame.syncStack(0);
frame.push(ObjectValue(*metaObject));
prepareVMCall();
pushArg(ImmGCPtr(module));
if (!callVM(GetOrCreateModuleMetaObjectInfo)) {
return false;
}
masm.tagValue(JSVAL_TYPE_OBJECT, ReturnReg, R0);
frame.push(R0);
return true;
}