#21064: Enable NTL's '-march=native' more cautiously
-------------------------------------+-------------------------------------
Reporter: leif | Owner: leif
Type: defect | Status: needs_review
Priority: blocker | Milestone: sage-7.3
Component: packages: | Resolution:
standard |
Keywords: assembler shlx | Merged in:
mulx |
Authors: Leif Leonhardy | Reviewers:
Report Upstream: N/A | Work issues:
Branch: | Commit:
u/leif/enable_NTL_native_more_safely|
41ea5daf35f02a6e53bd62a08a423a472edbb2d4
Dependencies: | Stopgaps:
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Comment (by leif):
P.S.: I'll probably write some script which converts `-march=native` in
`*FLAGS` to `-march=native -mno-foo -mno-bar ...` as appropriate, but
including (and regularly updating!) such somewhere in Sage is something
for future tickets. (We could do that, i.e., build `SAGE_NATIVE_*FLAGS`,
in Sage's top-level `configure`, and again after having installed Sage's
GCC and probably binutils. But in general, `-march=native` ''is supposed
to work '''without''' additional hacks'' on platforms where GCC supports
that option.)
--
Ticket URL: <https://trac.sagemath.org/ticket/21064#comment:20>
Sage <http://www.sagemath.org>
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