* c-parse.in (asm_string): New.  Don't allow wide strings in
	'asm'.
	(simple_asm_expr, asm_argument, asm_operand, asm_clobbers): Use
	asm_string instead of STRING.

testsuite:
	* gcc.dg/asm-wide-1.c: New test.

From-SVN: r92952