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[Bug bootstrap/49815] [4.7 regression] ICE in cselib_record_set, at cselib.c:2241 compiling 64-bit libjava on SPARC
- From: "ebotcazou at gcc dot gnu.org" <gcc-bugzilla at gcc dot gnu dot org>
- To: gcc-bugs at gcc dot gnu dot org
- Date: Fri, 22 Jul 2011 14:38:25 +0000
- Subject: [Bug bootstrap/49815] [4.7 regression] ICE in cselib_record_set, at cselib.c:2241 compiling 64-bit libjava on SPARC
- Auto-submitted: auto-generated
- References: <bug-49815-4@http.gcc.gnu.org/bugzilla/>
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=49815
--- Comment #9 from Eric Botcazou <ebotcazou at gcc dot gnu.org> 2011-07-22 14:37:50 UTC ---
> Ah, I see. adjust_insn call isn't guarded by MAY_HAVE_DEBUG_STMTS, therefore
> if -fvar-tracking-assignments gives up due to insanely large hash tables, it
> won't be reset during vt_finalize.
My assumption as well.
> BTW, wouldn't it be better to model the insn completely rather than partially?
> In particular, in addition to the arguments being copied have also the
> copy/clobber for all the other arguments, except for the sp = sp - something
> which would be another set.
What other arguments? Does vt_add_function_parameters not see them all? I'm
not sure I understand the need to model the stack decrement either given that
the CFA register is the frame pointer.