[Bug target/13722] [3.4/3.5 regression] [ia64] ICE in push_secondary_reload
------- Additional Comments From zack at codesourcery dot com 2004-01-23 23:24 -------
Subject: Re: PR 13722 candidate fix
Andreas Schwab <schwab@suse.de> writes:
> "Zack Weinberg" <zack@codesourcery.com> writes:
>
>> I'm at a bit of a loss trying to find the miscompilation. It's going
>> wrong somewhere either in Name_Find or Load_Source_File or their
>> subroutines, and I don't know which. Could you try to run it under
>> the debugger and find out where the broken code is?
>
> I tried, but unfortunately gdb (even the one from CVS) is unable to
> properly interpret the debug information that gcc is generating, making it
> pretty much impossible to track variables and their values.
This unfortunately puts us into shot-in-the-dark territory. However,
Jim pointed out one problem (lack of REG_INC notes in all cases) and
I found another (probably more serious; fixup insns generated for
unadjustible POST_MODIFY were being emitted in the wrong place). So,
if you wouldn't mind trying the appended revision (changes only
ia64.c)?
zw
------- Additional Comments From zack at codesourcery dot com 2004-01-23 23:24 -------
Created an attachment (id=5566)
--> (http://gcc.gnu.org/bugzilla/attachment.cgi?id=5566&action=view)
--
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=13722
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