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author | John Hawthorn <john@hawthorn.email> | 2022-08-15 16:14:12 -0700 |
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committer | GitHub <noreply@github.com> | 2022-08-15 16:14:12 -0700 |
commit | 0608a9a08693286a7d84845a216927ff2e3c9951 (patch) | |
tree | b3b0f619edd8f90cbfac7c75e5199a2ce141f1c7 /lib/rdoc/generator/texinfo.rb | |
parent | e49db0f760722bf44ed2c5b31f67d929e9156dbe (diff) |
Optimize Marshal dump/load for large (> 31-bit) FIXNUM (#6229)
* Optimize Marshal dump of large fixnum
Marshal's FIXNUM type only supports 31-bit fixnums, so on 64-bit
platforms the 63-bit fixnums need to be represented in Marshal's
BIGNUM.
Previously this was done by converting to a bugnum and serializing the
bignum object.
This commit avoids allocating the intermediate bignum object, instead
outputting the T_FIXNUM directly to a Marshal bignum. This maintains the
same representation as the previous implementation, including not using
LINKs for these large fixnums (an artifact of the previous
implementation always allocating a new BIGNUM).
This commit also avoids unnecessary st_lookups on immediate values,
which we know will not be in that table.
* Fastpath for loading FIXNUM from Marshal bignum
* Run update-deps
Notes
Notes:
Merged-By: jhawthorn <john@hawthorn.email>
Diffstat (limited to 'lib/rdoc/generator/texinfo.rb')
0 files changed, 0 insertions, 0 deletions