Bug 1812285 - wasm::InitExprInterpreter: use inline capacity for `::stack`. r=yury.
The Dart Barista-3 benchmark gives the initial expression interpreter a lot of
work. Profiling shows that wasm::InitExprInterpreter::stack heap-allocates
around 37000 short-lifetime blocks to hold the stacked values. Using a
48-element inline capacity removes all of those allocations. (40 removes
almost all, but not all).
Similar ridealong fix: for the wasm parser iterator Iter<Policy>::valueStack_,
increase inline capacity from 16 to 32. This takes out another 2500
allocations.
Differential Revision:
https://phabricator.services.mozilla.com/D167926
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is(_frm.contentWindow.location.href, "http://mochi.test:8888/tests/caps/tests/mochitest/file_bug1367586-target.html",
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case 2:
is(_frm.contentWindow.location.href, "http://mochi.test:8888/tests/caps/tests/mochitest/file_bug1367586-followon.html",
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case 3:
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