ed15724846
Vars without initialisers don't need to allocate a VariableProxy, as the proxy expression is not really needed for anything. So, we can special case declaration parsing to look ahead for a '=' (plus a few other cases), and skip the variable proxy allocation if it isn't there. As a side-effect, variables that are only declared but never used are no longer marked is_used, and thus not allocated. This saves on generating dead code. Change-Id: Ie4f04c6b5c1138df4c2e17acf1f0150459b3b571 Reviewed-on: https://chromium-review.googlesource.com/c/1434376 Commit-Queue: Leszek Swirski <leszeks@chromium.org> Reviewed-by: Toon Verwaest <verwaest@chromium.org> Reviewed-by: Ross McIlroy <rmcilroy@chromium.org> Cr-Commit-Position: refs/heads/master@{#59129} |
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| bugs/harmony | ||
| debug | ||
| protocol | ||
| regress | ||
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| BUILD.gn | ||
| debugger.status | ||
| test-api.js | ||
| testcfg.py | ||