Open Quuxplusone opened 3 years ago
Bugzilla Link | PR50975 |
Status | NEW |
Importance | P enhancement |
Reported by | Nico Weber (nicolasweber@gmx.de) |
Reported on | 2021-07-03 19:05:52 -0700 |
Last modified on | 2021-10-22 13:58:51 -0700 |
Version | unspecified |
Hardware | PC All |
CC | dblaikie@gmail.com, gkm@fb.com, jezreel@gmail.com, llvm-bugs@lists.llvm.org, smeenai@fb.com, vyng@google.com |
Fixed by commit(s) | |
Attachments | |
Blocks | |
Blocked by | |
See also |
I can upload a repro file if that's useful (it's 840MB uncompressed).
Would be useful yeah, I'd like to have a look
Gah, that was the old "use unoptimized build to measure stuff" problem again. /me hangs head in shame
With an optimized build, lld still takes 3s, which subjectively feels too big of a slowdown relative to a release build. But at least it's comfortably faster than ld64.
So I uploaded the repro anyways, here it is: https://drive.google.com/file/d/1tnaTp9mgmTS1h0pHpUvRZaSMSHVMzzJF/view?usp=sharing (184 MB compressed, 840 MB uncompressed, probably nice test case anyways -- it's an unoptimized (no -O flag) -g1 build. Maybe that's just that much more data -- but maybe we also do something silly with debug info.)
But definitely less bad than I though -- apologies again for that.