On Sun, Mar 09, 2014 at 09:41:59AM -0700, Ian Lance Taylor wrote:
> >>> Attached patch avoids a bunch of:
> >>>
> >>> ../../../gcc-svn/trunk/libgcc/crtstuff.c: In function 'frame_dummy':
> >>> ../../../gcc-svn/trunk/libgcc/crtstuff.c:463:19: warning: array
> >>> subscript is above array bounds [-Warray-bounds]
> >>> if (__JCR_LIST__[0])
> >>> ^
> >>>
> >>> when compiling libgcc.
> >>>
> >>> 2014-03-08 Uros Bizjak <[email protected]>
> >>>
> >>> * crtstuff.c (__JCR_LIST__): Declare as zero-length array.
I guess the only thing to avoid the warning (and potential miscompilation)
is to hide the access from the optimizers through something like:
void *jcr_list;
__asm ("" : "=g" (jcr_list) : "0" (__JCR_LIST__));
and then use jcr_list instead of __JCR_LIST__.
Jakub
