Re: [Tinycc-devel] Bug

[Ben Hinkle]

The long long is trying to generate code to compute the negative in '-1LL'. Since the text segment doesn't exist yet the compiler seg-v's. The gen_opl function should follow the same pattern as gen_opic and gen_opif

    c1 = (v1->r & (VT_VALMASK | VT_LVAL | VT_SYM)) == VT_CONST;
    c2 = (v2->r & (VT_VALMASK | VT_LVAL | VT_SYM)) == VT_CONST;
    if (c1 && c2) {
do the computation at compile-time

    } else {

generate code

    }

 

I haven't written the fix but if I have time soon I'd like to give it a shot.

-Ben
 

On 7/5/06, PerfectDark <address@hidden> wrote:

This is known bug and I didnt heard that it was fixed by someone. I tested tcc mostly under win32 and code like that always lead to crush:

//--------------------
long long g_llSomethingVariable = -1LL;

#include <stdio.h>

int main( int argc, char ** argv )
{
return 0;
}
//--------------------

>Could you please provide an example code that triggers this bug?
>
>On Tue, Jul 04, 2006 at 08:39:43PM +0100, Eric Chubb wrote:
>> From: "Eric Chubb" <address@hidden>
>> To: < address@hidden>
>> Date: Tue, 4 Jul 2006 20:39:43 +0100
>> Message-ID: <address@hidden>
>> Subject: [Tinycc-devel] Bug
>>
>> When you try and assign a value to a global variable just before main, the
>> compiler crashes
>>
>
>> _______________________________________________
>> Tinycc-devel mailing list
>> address@hidden
>> http://lists.nongnu.org/mailman/listinfo/tinycc-devel
>



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