c-common.c (handle_aligned_attribute, [...]): Do not strip NOPS from INTEGER_CSTs.
* c-common.c (handle_aligned_attribute, check_function_sentinel, get_nonnull_operand, handle_sentinel_attribute, check_function_arguments_recurse): Do not strip NOPS from INTEGER_CSTs. * c-decl.c (check_bitfield_type_and_width, build_enumerator): Likewise. * c-format.c (get_constant): Likewise. * c-parser.c (c_parser_postfix_expression): Likewise. * c-typeck.c (set_init_index): Likewise. (convert_arguments): Don't check for NOP_EXPR containing integer constant. From-SVN: r96760
This commit is contained in:
Joseph Myers
Joseph Myers
parent
e498b9f1a0
commit
f6d1c3a69b
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@ -1,3 +1,17 @@
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2005-03-20 Joseph S. Myers <joseph@codesourcery.com>
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* c-common.c (handle_aligned_attribute, check_function_sentinel,
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get_nonnull_operand, handle_sentinel_attribute,
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check_function_arguments_recurse): Do not strip NOPS from
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INTEGER_CSTs.
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* c-decl.c (check_bitfield_type_and_width, build_enumerator):
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Likewise.
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* c-format.c (get_constant): Likewise.
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* c-parser.c (c_parser_postfix_expression): Likewise.
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* c-typeck.c (set_init_index): Likewise.
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(convert_arguments): Don't check for NOP_EXPR containing integer
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constant.
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2005-03-20 Kazu Hirata <kazu@cs.umass.edu>
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* builtins.c (fold_fixed_mathfn, fold_builtin_trunc,
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@ -4481,12 +4481,6 @@ handle_aligned_attribute (tree *node, tree ARG_UNUSED (name), tree args,
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else if (TYPE_P (*node))
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type = node, is_type = 1;
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/* Strip any NOPs of any kind. */
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while (TREE_CODE (align_expr) == NOP_EXPR
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|| TREE_CODE (align_expr) == CONVERT_EXPR
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|| TREE_CODE (align_expr) == NON_LVALUE_EXPR)
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align_expr = TREE_OPERAND (align_expr, 0);
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if (TREE_CODE (align_expr) != INTEGER_CST)
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{
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error ("requested alignment is not a constant");
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@ -5119,7 +5113,6 @@ check_function_sentinel (tree attrs, tree params)
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if (TREE_VALUE (attr))
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{
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tree p = TREE_VALUE (TREE_VALUE (attr));
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STRIP_NOPS (p);
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pos = TREE_INT_CST_LOW (p);
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}
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@ -5199,13 +5192,7 @@ check_nonnull_arg (void * ARG_UNUSED (ctx), tree param,
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static bool
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get_nonnull_operand (tree arg_num_expr, unsigned HOST_WIDE_INT *valp)
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{
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/* Strip any conversions from the arg number and verify they
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are constants. */
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while (TREE_CODE (arg_num_expr) == NOP_EXPR
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|| TREE_CODE (arg_num_expr) == CONVERT_EXPR
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|| TREE_CODE (arg_num_expr) == NON_LVALUE_EXPR)
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arg_num_expr = TREE_OPERAND (arg_num_expr, 0);
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/* Verify the arg number is a constant. */
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if (TREE_CODE (arg_num_expr) != INTEGER_CST
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|| TREE_INT_CST_HIGH (arg_num_expr) != 0)
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return false;
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@ -5324,7 +5311,6 @@ handle_sentinel_attribute (tree *node, tree name, tree args,
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{
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tree position = TREE_VALUE (args);
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STRIP_NOPS (position);
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if (TREE_CODE (position) != INTEGER_CST)
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{
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warning ("requested position is not an integer constant");
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@ -5402,10 +5388,6 @@ check_function_arguments_recurse (void (*callback)
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/* Extract the argument number, which was previously checked
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to be valid. */
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format_num_expr = TREE_VALUE (TREE_VALUE (attrs));
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while (TREE_CODE (format_num_expr) == NOP_EXPR
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|| TREE_CODE (format_num_expr) == CONVERT_EXPR
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|| TREE_CODE (format_num_expr) == NON_LVALUE_EXPR)
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format_num_expr = TREE_OPERAND (format_num_expr, 0);
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gcc_assert (TREE_CODE (format_num_expr) == INTEGER_CST
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&& !TREE_INT_CST_HIGH (format_num_expr));
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@ -3637,9 +3637,6 @@ check_bitfield_type_and_width (tree *type, tree *width, const char *orig_name)
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unsigned HOST_WIDE_INT w;
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const char *name = orig_name ? orig_name: _("<anonymous>");
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/* Necessary? */
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STRIP_NOPS (*width);
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/* Detect and ignore out of range field width and process valid
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field widths. */
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if (!INTEGRAL_TYPE_P (TREE_TYPE (*width))
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@ -5624,10 +5621,6 @@ build_enumerator (tree name, tree value)
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/* Validate and default VALUE. */
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/* Remove no-op casts from the value. */
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if (value)
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STRIP_TYPE_NOPS (value);
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if (value != 0)
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{
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/* Don't issue more errors for error_mark_node (i.e. an
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@ -147,17 +147,12 @@ check_format_string (tree argument, unsigned HOST_WIDE_INT format_num,
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return true;
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}
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/* Strip any conversions from the expression, verify it is a constant,
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and store its value. If validated_p is true, abort on errors.
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/* Verify EXPR is a constant, and store its value.
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If validated_p is true, abort on errors.
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Returns true on success, false otherwise. */
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static bool
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get_constant (tree expr, unsigned HOST_WIDE_INT *value, int validated_p)
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{
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while (TREE_CODE (expr) == NOP_EXPR
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|| TREE_CODE (expr) == CONVERT_EXPR
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|| TREE_CODE (expr) == NON_LVALUE_EXPR)
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expr = TREE_OPERAND (expr, 0);
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if (TREE_CODE (expr) != INTEGER_CST || TREE_INT_CST_HIGH (expr) != 0)
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{
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gcc_assert (!validated_p);
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@ -5019,7 +5019,6 @@ c_parser_postfix_expression (c_parser *parser)
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tree c;
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c = fold (e1.value);
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STRIP_NOPS (c);
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if (TREE_CODE (c) != INTEGER_CST)
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error ("first argument to %<__builtin_choose_expr%> not"
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" a constant");
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@ -2234,11 +2234,6 @@ convert_arguments (tree typelist, tree values, tree function, tree fundecl)
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/* Change in signedness doesn't matter
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if a constant value is unaffected. */
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;
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/* Likewise for a constant in a NOP_EXPR. */
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else if (TREE_CODE (val) == NOP_EXPR
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&& TREE_CODE (TREE_OPERAND (val, 0)) == INTEGER_CST
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&& int_fits_type_p (TREE_OPERAND (val, 0), type))
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;
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/* If the value is extended from a narrower
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unsigned type, it doesn't matter whether we
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pass it as signed or unsigned; the value
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@ -5205,21 +5200,6 @@ set_init_index (tree first, tree last)
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return;
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}
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while ((TREE_CODE (first) == NOP_EXPR
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|| TREE_CODE (first) == CONVERT_EXPR
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|| TREE_CODE (first) == NON_LVALUE_EXPR)
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&& (TYPE_MODE (TREE_TYPE (first))
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== TYPE_MODE (TREE_TYPE (TREE_OPERAND (first, 0)))))
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first = TREE_OPERAND (first, 0);
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if (last)
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while ((TREE_CODE (last) == NOP_EXPR
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|| TREE_CODE (last) == CONVERT_EXPR
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|| TREE_CODE (last) == NON_LVALUE_EXPR)
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&& (TYPE_MODE (TREE_TYPE (last))
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== TYPE_MODE (TREE_TYPE (TREE_OPERAND (last, 0)))))
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last = TREE_OPERAND (last, 0);
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if (TREE_CODE (first) != INTEGER_CST)
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error_init ("nonconstant array index in initializer");
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else if (last != 0 && TREE_CODE (last) != INTEGER_CST)
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