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gimple-fold.c (get_symbol_constant_value): Allow all GIMPLE register type zero-constants.

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2014-11-26  Richard Biener  <rguenther@suse.de>

	* gimple-fold.c (get_symbol_constant_value): Allow all
	GIMPLE register type zero-constants.

From-SVN: r218076
This commit is contained in:
Richard Biener 2014-11-26 10:15:25 +00:00
parent 42bc352001
commit b8a8c4723c
2 changed files with 7 additions and 3 deletions
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7
gcc/ChangeLog
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@ -1,4 +1,9 @@
2014-11-25 Mark Wielaard <mjw@redhat.com>
2014-11-26 Richard Biener <rguenther@suse.de>
* gimple-fold.c (get_symbol_constant_value): Allow all
GIMPLE register type zero-constants.
2014-11-26 Mark Wielaard <mjw@redhat.com>
* dwarf2out.c (gen_subprogram_die): Add DW_AT_noreturn when the
function decl has TREE_THIS_VOLATILE.

3
gcc/gimple-fold.c
View file

@ -254,8 +254,7 @@ get_symbol_constant_value (tree sym)
have zero as the initializer if they may not be
overridden at link or run time. */
if (!val
&& (INTEGRAL_TYPE_P (TREE_TYPE (sym))
|| SCALAR_FLOAT_TYPE_P (TREE_TYPE (sym))))
&& is_gimple_reg_type (TREE_TYPE (sym)))
return build_zero_cst (TREE_TYPE (sym));
}