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c-typeck.c (build_unary_op): Do not expand array-refs via pointer arithmetic.

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2011-04-26  Richard Guenther  <rguenther@suse.de>

	* c-typeck.c (build_unary_op): Do not expand array-refs via
	pointer arithmetic.  Only adjust qualifiers for function types.

From-SVN: r172958
This commit is contained in:
Richard Biener 2011-04-26 10:12:34 +00:00
parent 961562d8d8
commit e73a83fc7c
1 changed files with 3 additions and 11 deletions
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14
gcc/c-typeck.c
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@ -3737,12 +3737,6 @@ build_unary_op (location_t location,
tree op0 = TREE_OPERAND (arg, 0);
if (!c_mark_addressable (op0))
return error_mark_node;
return build_binary_op (location, PLUS_EXPR,
(TREE_CODE (TREE_TYPE (op0)) == ARRAY_TYPE
? array_to_pointer_conversion (location,
op0)
: op0),
TREE_OPERAND (arg, 1), 1);
}
/* Anything not already handled and not a true memory reference
@ -3769,10 +3763,11 @@ build_unary_op (location_t location,
argtype = TREE_TYPE (arg);
/* If the lvalue is const or volatile, merge that into the type
to which the address will point. This should only be needed
to which the address will point. This is only needed
for function types. */
if ((DECL_P (arg) || REFERENCE_CLASS_P (arg))
&& (TREE_READONLY (arg) || TREE_THIS_VOLATILE (arg)))
&& (TREE_READONLY (arg) || TREE_THIS_VOLATILE (arg))
&& TREE_CODE (argtype) == FUNCTION_TYPE)
{
int orig_quals = TYPE_QUALS (strip_array_types (argtype));
int quals = orig_quals;
@ -3782,9 +3777,6 @@ build_unary_op (location_t location,
if (TREE_THIS_VOLATILE (arg))
quals |= TYPE_QUAL_VOLATILE;
gcc_assert (quals == orig_quals
|| TREE_CODE (argtype) == FUNCTION_TYPE);
argtype = c_build_qualified_type (argtype, quals);
}