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Re: master 9227864: Further fix for aborts due to GC losing pseudovector
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From: |
Stefan Monnier |
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Subject: |
Re: master 9227864: Further fix for aborts due to GC losing pseudovectors |
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Date: |
Tue, 26 May 2020 13:46:22 -0400 |
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User-agent: |
Gnus/5.13 (Gnus v5.13) Emacs/28.0.50 (gnu/linux) |
> I guess the recent bugs also make it impossible to do a 32-bit
> --wide-int USE_LSB_TAG build.
Indeed.
> My suspicion is that that would actually be faster,
We had USE_LSB_TAGS for wide-int, originally, but experiments showed
that for wide-int MSB_TAGs was slightly faster, presumably because the
tagging/untagging is simpler. Speed was (so far) the only reason why we
didn't use LSB_TAGs for wide-int.
Stefan