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(c_sizeof, build_c_cast): Set TREE_OVERFLOW in addition to TREE_CONSTANT_OVERFLOW. 

(c_sizeof, build_c_cast): Set TREE_OVERFLOW in addition
to TREE_CONSTANT_OVERFLOW.
(store_init_value): STRIP_TYPE_NOPS is required before
constant_expression_warning.

From-SVN: r4825
This commit is contained in:
Paul Eggert 1993-07-02 01:26:01 +00:00
parent 2ac3624bab
commit 10d5caece7
1 changed files with 12 additions and 7 deletions
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19
gcc/c-typeck.c
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@ -761,8 +761,8 @@ c_sizeof (type)
t = size_binop (CEIL_DIV_EXPR, TYPE_SIZE (type),
size_int (TYPE_PRECISION (char_type_node)));
/* size_binop does not put the constant in range, so do it now. */
if (TREE_CODE (t) == INTEGER_CST)
TREE_CONSTANT_OVERFLOW (t) |= force_fit_type (t, 0);
if (TREE_CODE (t) == INTEGER_CST && force_fit_type (t, 0))
TREE_CONSTANT_OVERFLOW (t) = TREE_OVERFLOW (t) = 1;
return t;
}
@ -3870,7 +3870,7 @@ build_c_cast (type, expr)
}
else
{
tree otype;
tree otype, ovalue;
/* If casting to void, avoid the error that would come
from default_conversion in the case of a non-lvalue array. */
@ -3925,11 +3925,15 @@ build_c_cast (type, expr)
&& !TREE_CONSTANT (value))
warning ("cast to pointer from integer of different size");
ovalue = value;
value = convert (type, value);
/* Ignore any integer overflow caused by the cast. */
if (TREE_CODE (value) == INTEGER_CST)
TREE_CONSTANT_OVERFLOW (value) = 0;
{
TREE_OVERFLOW (value) = TREE_OVERFLOW (ovalue);
TREE_CONSTANT_OVERFLOW (value) = TREE_CONSTANT_OVERFLOW (ovalue);
}
}
if (value == expr && pedantic)
@ -4535,10 +4539,11 @@ store_init_value (decl, init)
}
#endif
/* ANSI wants warnings about out-of-range constant initializers. */
constant_expression_warning (value);
DECL_INITIAL (decl) = value;
/* ANSI wants warnings about out-of-range constant initializers. */
STRIP_TYPE_NOPS (value);
constant_expression_warning (value);
}
/* Methods for storing and printing names for error messages. */