On 2015/05/19 15:15:41, wingo wrote:
Another thing that could work would be to write errors into a buffer
instead,
and the buffer doesn't get copied. An ExpressionClassifier would become a
pointer to the start of the buffer, along with a mask of
invalid-production
errors seen since the start of the buffer. I guess you'd allocate the
buffer
in
the zone. This could also allow for varying sizes of errors, if that
mattered.
I tried this and it didn't help. On the other hand, adding a simple "if
(errors
== 0) return" shortcut to Accumulate() golfed me down to 910M instructions,
which is getting there.
https://codereview.chromium.org/1140813008/
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