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From: "segher at gcc dot gnu.org" <gcc-bugzilla@gcc.gnu.org> To: gcc-bugs@gcc.gnu.org Subject: [Bug rtl-optimization/94148] New: The DF framework uses bb->aux, which is for passes only Date: Wed, 11 Mar 2020 16:57:33 +0000 [thread overview] Message-ID: <bug-94148-4@http.gcc.gnu.org/bugzilla/> (raw) https://gcc.gnu.org/bugzilla/show_bug.cgi?id=94148 Bug ID: 94148 Summary: The DF framework uses bb->aux, which is for passes only Product: gcc Version: unknown Status: UNCONFIRMED Severity: normal Priority: P3 Component: rtl-optimization Assignee: unassigned at gcc dot gnu.org Reporter: segher at gcc dot gnu.org Target Milestone: --- df-core.c:df_worklist_dataflow_doublequeue uses bb->aux, clobbering it, while that field is documented as /* Auxiliary info specific to a pass. */ PTR GTY ((skip (""))) aux; and some passes that do use DF also use bb->aux. This gives problems with overlapping lifetimes. This blocks fixing PR94042 properly.
next reply other threads:[~2020-03-11 16:57 UTC|newest] Thread overview: 9+ messages / expand[flat|nested] mbox.gz Atom feed top 2020-03-11 16:57 segher at gcc dot gnu.org [this message] 2020-03-11 16:57 ` [Bug rtl-optimization/94148] " segher at gcc dot gnu.org 2020-03-12 9:01 ` rguenth at gcc dot gnu.org 2020-03-12 13:55 ` segher at gcc dot gnu.org 2020-03-13 17:53 ` segher at gcc dot gnu.org 2020-03-13 22:58 ` segher at gcc dot gnu.org 2020-03-13 22:59 ` segher at gcc dot gnu.org 2020-05-07 11:56 ` jakub at gcc dot gnu.org 2020-07-13 11:12 ` segher at gcc dot gnu.org
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