https://gcc.gnu.org/bugzilla/show_bug.cgi?id=108130
Bug ID: 108130
Summary: [13 Regression] LTO compile time hog seen on
bootstrap-lto config since r13-4684-g7450b25566b7a7
Product: gcc
Version: 13.0
Status: UNCONFIRMED
Keywords: compile-time-hog
Severity: normal
Priority: P3
Component: ipa
Assignee: unassigned at gcc dot gnu.org
Reporter: marxin at gcc dot gnu.org
CC: jamborm at gcc dot gnu.org, marxin at gcc dot gnu.org
Target Milestone: ---
I noticed linking of e.g. cc1plus gets much slower in stage2 with a WPA hog in:
58.15% lto1 [.] lto_symtab_encoder_lookup
19.95% lto1 [.] may_need_named_section_p
18.77% lto1 [.] rename_statics
0.50% lto1 [.] lto_symtab_encoder_lookup
0.09% lto1 [.] lto_symtab_encoder_encode_body_p
The WPA phase takes >5 minutes, while it used to take ~30 seconds on my
machine.
