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re PR middle-end/29299 (gcc "used" attribute has no effect on local-scope static variables) 

PR middle-end/29299
	* cfgexpand.c (expand_used_vars_for_block): Vars marked used by user
	are used.

From-SVN: r117863
This commit is contained in:
Jan Hubicka 2006-10-18 23:39:52 +02:00 committed by Jan Hubicka
parent c4c7fca31f
commit 1368453c6a
2 changed files with 12 additions and 1 deletions
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6
gcc/ChangeLog
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@ -1,3 +1,9 @@
2006-10-18 Jan Hubicka <jh@suse.cz>
PR middle-end/29299
* cfgexpand.c (expand_used_vars_for_block): Vars marked used by user
are used.
2006-10-18 Marcin Dalecki <martin@dalecki.de>
* omp-low.c (expand_parallel_call): Use BSI_SAME_STMT instead of

7
gcc/cfgexpand.c
View File

@ -764,7 +764,12 @@ expand_used_vars_for_block (tree block, bool toplevel)
/* Expand all variables at this level. */
for (t = BLOCK_VARS (block); t ; t = TREE_CHAIN (t))
if (TREE_USED (t))
if (TREE_USED (t)
/* Force local static variables to be output when marked by
used attribute. For unit-at-a-time, cgraph code already takes
care of this. */
|| (!flag_unit_at_a_time && TREE_STATIC (t)
&& DECL_PRESERVE_P (t)))
expand_one_var (t, toplevel);
this_sv_num = stack_vars_num;