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tree-ssa-alias.c (create_name_tags): If PTR points to a volatile type, mark the tag volatile.

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* tree-ssa-alias.c (create_name_tags): If PTR points to a
	volatile type, mark the tag volatile.
	(get_tmt_for): If TAG_TYPE is a volatile type, mark the tag
	volatile.

From-SVN: r88232
This commit is contained in:
Diego Novillo 2004-09-28 13:45:05 +00:00 committed by Diego Novillo
parent 45fbb18639
commit 38e05395ac
2 changed files with 11 additions and 1 deletions
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7
gcc/ChangeLog
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@ -1,3 +1,10 @@
2004-09-28 Diego Novillo <dnovillo@redhat.com>
* tree-ssa-alias.c (create_name_tags): If PTR points to a
volatile type, mark the tag volatile.
(get_tmt_for): If TAG_TYPE is a volatile type, mark the tag
volatile.
2004-09-28 Andrew Pinski <pinskia@physics.uc.edu>
* tree.def (vec_cond_expr): Fix. Change 'e'

5
gcc/tree-ssa-alias.c
View File

@ -809,6 +809,9 @@ create_name_tags (struct alias_info *ai)
continue;
}
TREE_THIS_VOLATILE (pi->name_mem_tag)
|= TREE_THIS_VOLATILE (TREE_TYPE (TREE_TYPE (ptr)));
/* Mark the new name tag for renaming. */
bitmap_set_bit (vars_to_rename, var_ann (pi->name_mem_tag)->uid);
}
@ -2138,7 +2141,7 @@ get_tmt_for (tree ptr, struct alias_info *ai)
}
/* If the pointed-to type is volatile, so is the tag. */
TREE_THIS_VOLATILE (tag) = TREE_THIS_VOLATILE (tag_type);
TREE_THIS_VOLATILE (tag) |= TREE_THIS_VOLATILE (tag_type);
/* Make sure that the type tag has the same alias set as the
pointed-to type. */