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Max Bernstein
f4c7ad48ce
Add a new `Primitive.attr :always_inline`. Force inline ISEQs with this attribute. This is helpful for e.g. `BasicObject#!=`, which is otherwise megamorphic, and very small. Other JITs also have a "always inline small methods" policy but I didn't want to wade into that yet.
19 lines
652 B
Ruby
19 lines
652 B
Ruby
# ZJIT uses a Ruby definition of BasicObject#!= so it can inline the call to #==.
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# Register it only for ZJIT, leaving the C definition in place otherwise.
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class BasicObject
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with_zjit do
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if Primitive.rb_builtin_basic_definition_p(:!=)
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undef :!=
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def !=(other) # :nodoc:
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# Keep the replacement classified as a basic method like the C definition,
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# and have ZJIT inline it even when its size heuristics would say no.
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Primitive.attr! :c_trace, :always_inline
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# Negate truthiness without calling a possibly redefined #!.
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Primitive.rb_builtin_bool_negate(self == other)
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end
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end
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end
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end
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