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tree.h (may_be_aliased): Trust TREE_ADDRESSABLE from TREE_PUBLIC and DECL_EXTERNAL decls.

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2014-06-04  Richard Biener  <rguenther@suse.de>

	* tree.h (may_be_aliased): Trust TREE_ADDRESSABLE from
	TREE_PUBLIC and DECL_EXTERNAL decls.

From-SVN: r211233
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Richard Biener 2014-06-04 13:51:18 +00:00 • committed by Richard Biener
parent 9ccac7012c
commit 38af3208d5
2 changed files with 6 additions and 3 deletions
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5
gcc/ChangeLog
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@ -1,3 +1,8 @@
2014-06-04 Richard Biener <rguenther@suse.de>
* tree.h (may_be_aliased): Trust TREE_ADDRESSABLE from
TREE_PUBLIC and DECL_EXTERNAL decls.
2014-06-04 Matthew Fortune <matthew.fortune@imgtec.com>
* regcprop.c (copyprop_hardreg_forward_1): Account for

4
gcc/tree.h
View file

@ -4528,9 +4528,7 @@ static inline bool
may_be_aliased (const_tree var)
{
return (TREE_CODE (var) != CONST_DECL
&& (TREE_PUBLIC (var)
|| DECL_EXTERNAL (var)
|| TREE_ADDRESSABLE (var))
&& TREE_ADDRESSABLE (var)
&& !((TREE_STATIC (var) || TREE_PUBLIC (var) || DECL_EXTERNAL (var))
&& ((TREE_READONLY (var)
&& !TYPE_NEEDS_CONSTRUCTING (TREE_TYPE (var)))