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(convert_and_check): Don't diagnose overflow in constant expression 

merely because conversion overflowed.

From-SVN: r9626
This commit is contained in:
Richard Kenner 1995-05-11 18:48:51 -04:00
parent 5be1df77c9
commit 868fc7506b
1 changed files with 4 additions and 0 deletions
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4
gcc/c-common.c
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@ -1369,6 +1369,10 @@ convert_and_check (type, expr)
{
TREE_OVERFLOW (t) = 0;
/* Do not diagnose overflow in a constant expression merely
because a conversion overflowed. */
TREE_CONSTANT_OVERFLOW (t) = TREE_CONSTANT_OVERFLOW (expr);
/* No warning for converting 0x80000000 to int. */
if (!(TREE_UNSIGNED (type) < TREE_UNSIGNED (TREE_TYPE (expr))
&& TREE_CODE (TREE_TYPE (expr)) == INTEGER_TYPE