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riscv-gcc-1
Commit dcffa15b by Richard Stallman
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(int_fits_type_p): Negative ints never fit unsigned 

types, and unsigned ints with top-bit-set never fit signed types.

From-SVN: r2126
parent e8375399
Showing with 4 additions and 2 deletions
gcc/tree.c
......@@ -3131,10 +3131,12 @@ int_fits_type_p (c, type)
{
if (TREE_UNSIGNED (type))
return (!INT_CST_LT_UNSIGNED (TYPE_MAX_VALUE (type), c)
&& !INT_CST_LT_UNSIGNED (c, TYPE_MIN_VALUE (type)));
&& !INT_CST_LT_UNSIGNED (c, TYPE_MIN_VALUE (type))
&& (TREE_INT_CST_HIGH (c) >= 0 || TREE_UNSIGNED (TREE_TYPE (c))));
else
return (!INT_CST_LT (TYPE_MAX_VALUE (type), c)
&& !INT_CST_LT (c, TYPE_MIN_VALUE (type)));
&& !INT_CST_LT (c, TYPE_MIN_VALUE (type))
&& (TREE_INT_CST_HIGH (c) >= 0 || !TREE_UNSIGNED (TREE_TYPE (c))));
}
/* Return the innermost context enclosing DECL that is
......
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