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Add a size_of test for Rule.

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MozReview-Commit-ID: J9y9cl0rpxX
This commit is contained in:
Bobby Holley 2017-06-01 09:17:43 -07:00
parent 6fe0e30c16
commit b815cabaf7
1 changed files with 5 additions and 0 deletions
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5
tests/unit/stylo/size_of.rs
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@ -19,6 +19,11 @@ fn size_of_selectors_dummy_types() {
assert_eq!(align_of::<dummies::Atom>(), align_of::<style::Atom>()); assert_eq!(align_of::<dummies::Atom>(), align_of::<style::Atom>());
} }
// The size of this is critical to performance on the bloom-basic microbenchmark.
// When iterating over a large Rule array, we want to be able to fast-reject
// selectors (with the inline hashes) with as few cache misses as possible.
size_of_test!(test_size_of_rule, style::stylist::Rule, 64);
size_of_test!(test_size_of_property_declaration, style::properties::PropertyDeclaration, 32); size_of_test!(test_size_of_property_declaration, style::properties::PropertyDeclaration, 32);
// This is huge, but we allocate it on the stack and then never move it, // This is huge, but we allocate it on the stack and then never move it,