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tree-ssa-copyrename.c (copy_rename_partition_coalesce): Check for arificial variables, not is_gimple_tmp_var.

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* tree-ssa-copyrename.c (copy_rename_partition_coalesce):
	Check for arificial variables, not is_gimple_tmp_var.
	* tree-ssa-live.c (var_union): Likewise.

From-SVN: r86057
This commit is contained in:
Nathanael Nerode 2004-08-16 15:19:31 +00:00
parent 82cb25749b
commit dffc9ae5a9
3 changed files with 10 additions and 3 deletions
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6
gcc/ChangeLog
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@ -1,3 +1,9 @@
2004-08-16 Nathanael Nerode <neroden@gcc.gnu.org>
* tree-ssa-copyrename.c (copy_rename_partition_coalesce):
Check for arificial variables, not is_gimple_tmp_var.
* tree-ssa-live.c (var_union): Likewise.
2004-08-16 Nathan Sidwell <nathan@codesourcery.com>
* calls.c (load_register_parameters): Remove spurious FIXME token.

4
gcc/tree-ssa-copyrename.c
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@ -195,8 +195,8 @@ copy_rename_partition_coalesce (var_map map, tree var1, tree var2, FILE *debug)
return;
}
gimp1 = is_gimple_tmp_var (root1);
gimp2 = is_gimple_tmp_var (root2);
gimp1 = (TREE_CODE (root1) == VAR_DECL && DECL_ARTIFICIAL (root1));
gimp2 = (TREE_CODE (root2) == VAR_DECL && DECL_ARTIFICIAL (root2));
/* Never attempt to coalesce 2 user variables unless one is an inline
variable. */

3
gcc/tree-ssa-live.c
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@ -135,7 +135,8 @@ var_union (var_map map, tree var1, tree var2)
/* If there is no root_var set, or its not a user variable, set the
root_var to this one. */
if (!root_var || is_gimple_tmp_var (root_var))
if (!root_var
|| (TREE_CODE (root_var) == VAR_DECL && DECL_ARTIFICIAL (root_var)))
{
other_var = root_var;
root_var = var2;