Re: [Patch] hard-widen-limits [was Re: Syntax tables for multiple modes [was: bug#22983: syntax-ppss returns wrong result.]]

[Vitalie Spinu]

>> On Sun, Apr 24 2016 18:19, Andreas Schwab wrote:

> Vitalie Spinu <address@hidden> writes:

>>>> On Sun, Apr 24 2016 15:20, Andreas Schwab wrote:
>>
>>> Vitalie Spinu <address@hidden> writes:
>>
>>>> @@ -1692,7 +1692,7 @@ exec_byte_code (Lisp_Object bytestr, Lisp_Object 
>>>> vector, Lisp_Object maxdepth,
>>>>  
>>>>    CASE (Bwiden):
>>>>      BEFORE_POTENTIAL_GC ();
>>>> -    PUSH (Fwiden ());
>>>> +    TOP = Fwiden (TOP);
>>
>>> You are clobbering the stack here.  Instead of pushing a new value you
>>> are overwriting an unrelated value on the stack.
>>
>> I don't think so. I pick an argument form the stack and put the return value 
>> in
>> it. This is what all one-arg functions do in bytecode.c.

> But nobody is pushing that argument.

I am not pushing anything. I am just overriding. PUSH in above diff is a deleted
line.

  Vitalie