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[Bug bootstrap/50686] [4.7 regression] IRIX 6.5 bootstrap failure: ICE in in lookup_cfa_1, at dwarf2cfi.c:595
- From: "bernds at gcc dot gnu.org" <gcc-bugzilla at gcc dot gnu dot org>
- To: gcc-bugs at gcc dot gnu dot org
- Date: Mon, 17 Oct 2011 16:34:42 +0000
- Subject: [Bug bootstrap/50686] [4.7 regression] IRIX 6.5 bootstrap failure: ICE in in lookup_cfa_1, at dwarf2cfi.c:595
- Auto-submitted: auto-generated
- References: <bug-50686-4@http.gcc.gnu.org/bugzilla/>
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=50686
--- Comment #14 from Bernd Schmidt <bernds at gcc dot gnu.org> 2011-10-17 16:34:42 UTC ---
Ok, so there are two restore_state notes following each other; note 374 and
note 375. We'll want a breakpoint in add_cfi to catch the two calls where these
notes are added. I'd expect it's from connect_traces, and at
cfi->dw_cfi_opc = DW_CFA_restore_state;
add_cfi (cfi);
in that function I'd like to see some state:
p debug_rtx (prev_ti->head)
p debug_rtx (ti->head)
p debug_cfi_row (ti->beg_row)
for each time we reach this code.