Branch: refs/heads/blead
Home: https://github.com/Perl/perl5
Commit: 84564318489ffdf8dcabe85187fe28b06d0c7537
https://github.com/Perl/perl5/commit/84564318489ffdf8dcabe85187fe28b06d0c7537
Author: Richard Leach <richardle...@users.noreply.github.com>
Date: 2024-06-11 (Tue, 11 Jun 2024)
Changed paths:
M pp_hot.c
Log Message:
-----------
Perl_leave_adjust_stacks: additional efficiency for mortal copies
The existing code has a fast path for copying a SVt_NULL or SVt_IV. For all
other types, a new SVt_NULL is passed into sv_setsv_flags, where it will
be upgraded into the required type by sv_upgrade().
This commit makes two changes:
1) Special case copying a SVt_NV where possible, as sv_setsv_flags does.
2) It's safe and more efficient to directly create a new type of SVt_PVNV
or below, rather than upgrade it later, so do that.
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