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tree-dfa.c (remove_referenced_var): If removing a variable which has subvars...

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2007-11-08  Richard Guenther  <rguenther@suse.de>

	* tree-dfa.c (remove_referenced_var): If removing a
	variable which has subvars, also remove those from
	the referenced vars.  Do not create a variable annotation.

From-SVN: r130030
This commit is contained in:
Richard Guenther 2007-11-08 22:35:44 +00:00 • committed by Richard Biener
parent 35a3be486a
commit 7d32e17a1a
2 changed files with 20 additions and 2 deletions
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6
gcc/ChangeLog
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@ -1,3 +1,9 @@
2007-11-08 Richard Guenther <rguenther@suse.de>
* tree-dfa.c (remove_referenced_var): If removing a
variable which has subvars, also remove those from
the referenced vars. Do not create a variable annotation.
2007-11-08 Bob Wilson <bob.wilson@acm.org>
* config/xtensa/xtensa.c (xtensa_expand_prologue): Remove first

16
gcc/tree-dfa.c
View file

@ -751,10 +751,22 @@ remove_referenced_var (tree var)
struct tree_decl_minimal in;
void **loc;
unsigned int uid = DECL_UID (var);
subvar_t sv;
/* If we remove a var, we should also remove its subvars, as we kill
their parent var and its annotation. */
if (var_can_have_subvars (var)
&& (sv = get_subvars_for_var (var)))
{
unsigned int i;
tree subvar;
for (i = 0; VEC_iterate (tree, sv, i, subvar); ++i)
remove_referenced_var (subvar);
}
clear_call_clobbered (var);
v_ann = get_var_ann (var);
ggc_free (v_ann);
if ((v_ann = var_ann (var)))
ggc_free (v_ann);
var->base.ann = NULL;
gcc_assert (DECL_P (var));
in.uid = uid;