Branch: refs/heads/blead
Home: https://github.com/Perl/perl5
Commit: 0b2197e03b2b2b41b15ca3889712700c3b0cfcf5
https://github.com/Perl/perl5/commit/0b2197e03b2b2b41b15ca3889712700c3b0cfcf5
Author: Nicholas Clark <n...@ccl4.org>
Date: 2021-09-21 (Tue, 21 Sep 2021)
Changed paths:
M Makefile.SH
Log Message:
-----------
`make distclean` should delete `makedepend_file`
Commit: 4b6b6165ecccd54b9fa91b2042c9655ef13dc6cc
https://github.com/Perl/perl5/commit/4b6b6165ecccd54b9fa91b2042c9655ef13dc6cc
Author: Nicholas Clark <n...@ccl4.org>
Date: 2021-09-21 (Tue, 21 Sep 2021)
Changed paths:
M hv.c
Log Message:
-----------
In Perl_hv_iternext_flags() move a variable to a tighter scope
`xhv` was added to avoid repeated dereferences from the HV head in June 2001
as part of commit cbec93472053303a:
Revert #10656 for performance reasons but leave in the
use of Hv*() macros -- in comments, so that grepping the
source is easier, from Abhijit. (Also add the ENV_HV_NAME speedup
suggested by Sarathy, also by Abhijit.)
Most uses were eliminated in May 2005 by commit bfcb351493b97935:
Move hv_name, hv_eiter and hv_riter into a new aux structure.
Provide (more efficient) _get and _set macros.
Adjust the core to use them.
and commit 7b2c381cf37e4e46:
Move the xpv_pv/xrv_rv member into the SV head, in a union with
IV and UV. Avoid allocating a body for IVs and RVs.
The only other read of `xhv` was eliminated in June 2005 by commit
b79f7545f218479c:
Store the xhv_aux structure after the main array.
This reduces the size of HV bodies from 24 to 20 bytes on a 32 bit
build. It has the side effect of defined %symbol_table:: now always
being true. defined %hash is already deprecated.
After that change xhv remained, saving the first deference, but it was
still dereferenced each time within a loop to read `xhv_max`.
Ideally that commit would have made this change - replace `xhv` with a
single lookup of HvMAX() in the scope where it is needed.
Compare: https://github.com/Perl/perl5/compare/1707eb284b1f...4b6b6165eccc
