[PR49888, VTA] don't keep VALUEs bound to modified MEMs

[H.J. Lu]

On Tue, Jun 12, 2012 at 1:42 PM, Richard Henderson <rth@redhat.com> wrote:
> On 2012-06-05 12:33, Alexandre Oliva wrote:
>> for  gcc/ChangeLog
>> from  Alexandre Oliva  <aoliva@redhat.com>
>>
>>       PR debug/49888
>>       * var-tracking.c: Include alias.h.
>>       (overlapping_mems): New struct.
>>       (drop_overlapping_mem_locs): New.
>>       (clobber_overlapping_mems): New.
>>       (var_mem_delete_and_set, var_mem_delete): Call it.
>>       (val_bind): Likewise, but only if modified.
>>       (compute_bb_dataflow, emit_notes_in_bb): Call it on MEMs.
>>       * Makefile.in (var-tracking.o): Depend in $(ALIAS_H).
>>
>> for  gcc/testsuite/ChangeLog
>> from  Alexandre Oliva  <aoliva@redhat.com>
>>
>>       PR debug/49888
>>       * gcc.dg/guality/pr49888.c: New.
>
> Ok.
>
>

It caused:

http://gcc.gnu.org/bugzilla/show_bug.cgi?id=53671


-- 
H.J.