https://gcc.gnu.org/bugzilla/show_bug.cgi?id=93398
Bug ID: 93398
Summary: PGO bootstrap is not reproducible
Product: gcc
Version: 9.2.1
Status: UNCONFIRMED
Severity: normal
Priority: P3
Component: bootstrap
Assignee: unassigned at gcc dot gnu.org
Reporter: marxin at gcc dot gnu.org
CC: hubicka at gcc dot gnu.org
Target Milestone: ---
Right now I've run twice profiledbootstrap on x86_64 and it ends with a
different binary:
$ objfolderdiff.py before after
80/ 669: c-family/c-common.o: different
96/ 669: c-family/c-warn.o: different
102/ 669: c/c-decl.o: different
108/ 669: c/c-typeck.o: different
121/ 669: cfgexpand.o: different
127/ 669: cgraph.o: different
130/ 669: cgraphunit.o: different
143/ 669: cp/class.o: different
144/ 669: cp/constexpr.o: different
153/ 669: cp/decl.o: different
211/ 669: dominance.o: different
219/ 669: dwarf2out.o: different
232/ 669: final.o: different
284/ 669: function.o: different
291/ 669: gcc.o: different
297/ 669: generic-match.o: different
304/ 669: ggc-page.o: different
325/ 669: gimple-ssa-strength-reduction.o: different
366/ 669: i386.o: different
384/ 669: insn-recog.o: different
387/ 669: ipa-comdats.o: different
389/ 669: ipa-devirt.o: different
393/ 669: ipa-icf.o: different
409/ 669: ipa.o: different
437/ 669: lra-remat.o: different
486/ 669: predict.o: different
556/ 669: tree-affine.o: different
560/ 669: tree-chrec.o: different
562/ 669: tree-data-ref.o: different
567/ 669: tree-eh.o: different
601/ 669: tree-ssa-loop-niter.o: different
612/ 669: tree-ssa-reassoc.o: different
616/ 669: tree-ssa-strlen.o: different
617/ 669: tree-ssa-structalias.o: different
622/ 669: tree-ssa-threadupdate.o: different
643/ 669: tree.o: different
652/ 669: var-tracking.o: different
654/ 669: varpool.o: different
