Re: x86-64, I definitely can't make sense out of that

[Dale Johannesen <dalej at apple dot com>]

On Feb 4, 2006, at 7:06 AM, Andrew Pinski wrote:
> > 		signs_all[4] = { !(sx > 0), !(sy > 0), !(sz > 0),  0 },
>
>
> C++ front-end produces:
> <<cleanup_point   const int signs_all[4] = {0};>>;
> <<cleanup_point signs_all[0] = (int) sx <= 0 >>>;
> <<< Unknown tree: expr_stmt  signs_all[1] = (int) sy <= 0 >>>;
> <<< Unknown tree: expr_stmt  signs_all[2] = (int) sz <= 0 >>>;
>
> While the C front-end is producing:
> const int signs_all[4] = {(int) sx <= 0, (int) sy <= 0, (int) sz <= 0, 
> 0};
>
> Dale Johannesen and I came up with a patch to the C++ front-end
> for this except it did not work with some C++ cases.

Yes, we had it in Apple's branch for a while and had to back it out.  
The place to look is split_nonconstant_init in cp/typeck2.c if you want 
to try.  The tricky part is making sure the entire object is 
initialized in all cases when only a partial initializer is specified.