------- Comment #4 from rguenth at gcc dot gnu dot org 2008-09-22 12:22 -------
All XFAILs left are due to the SCCVN union value-numbering optimization being
disabled:
#if FIXME
/* If this is a reference to a union member, record the union
member size as operand. Do so only if we are doing
expression insertion (during FRE), as PRE currently gets
confused with this. */
if (may_insert
&& TREE_CODE (DECL_CONTEXT (TREE_OPERAND (ref, 1))) == UNION_TYPE
&& integer_zerop (DECL_FIELD_OFFSET (TREE_OPERAND (ref, 1)))
&& integer_zerop (DECL_FIELD_BIT_OFFSET (TREE_OPERAND (ref, 1))))
temp.op0 = TYPE_SIZE (TREE_TYPE (TREE_OPERAND (ref, 1)));
else
#endif
if you simply enable it it miscompiles GCC. The testsuites of all languages
are clean though.
--
rguenth at gcc dot gnu dot org changed:
What |Removed |Added
----------------------------------------------------------------------------
Summary|[4.4 Regression] XFAILs from|[4.4 Regression] XFAILs from
|PRE rewrite |PRE rewrite, SCCVN union
| |optimization disabled
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=37145
