------- Comment #10 from dave at hiauly1 dot hia dot nrc dot ca 2009-03-07
16:52 -------
Subject: Re: [4.4 Regression] ICE at dwarf2out.c:10353 in
loc_descriptor_from_tree_1
> Can you reproduce it with stage1 cc1plus (or non-bootstrapped cc1plus) built
> by
> some older gcc, or only with stage2/stage3 cc1plus? Wonder if cc1plus hasn't
> been miscompiled. In any case, as this can't be reproduced with a
> cross-compiler, somebody with hppa-linux access needs to debug it.
I can't reproduce it with stage1 cc1plus, only with stage2/stage3 cc1plus.
The bug appeared after the following change:
2009-03-01 Jan Hubicka <j...@suse.cz>
PR debug/39267
* tree.h (BLOCK_NONLOCALIZED_VARS, BLOCK_NUM_NONLOCALIZED_VARS,
Looking at dwarf2out.c, I see:
case PARM_DECL:
if (DECL_HAS_VALUE_EXPR_P (loc))
return loc_descriptor_from_tree_1 (DECL_VALUE_EXPR (loc),
want_address);
(gdb) p loc->decl_common.decl_flag_3
$11 = 1
but
DECL_VALUE_EXPR (loc) returns NULL_TREE.
Dave
--
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=39355
