[Bug optimization/12800] [tree-ssa] Store dropped after cast to pointer from integer of different size

falk dot hueffner at student dot uni-tuebingen dot de gcc-bugzilla@gcc.gnu.org
Tue Oct 28 01:05:00 GMT 2003


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http://gcc.gnu.org/bugzilla/show_bug.cgi?id=12800



------- Additional Comments From falk dot hueffner at student dot uni-tuebingen dot de  2003-10-28 00:56 -------
Subject: Re:  [tree-ssa] Store dropped after cast to pointer from integer of different size

"dnovillo at redhat dot com" <gcc-bugzilla@gcc.gnu.org> writes:

> On Mon, 2003-10-27 at 19:15, falk at debian dot org wrote:
> > void op_stw_raw_T0_A0(int T2)
> > {
> >   *(char *) T2 = 0;
> > }
> > 
> Why do you expect this to work?  T2 is an integer, not a pointer.

Well, the result of this is implementation defined, and gcc used to
support converting pointers to numbers and back. Do you think this
should be dropped?



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