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[Bug optimization/12800] [tree-ssa] Store dropped after cast to pointer from integer of different size
- From: "falk dot hueffner at student dot uni-tuebingen dot de" <gcc-bugzilla at gcc dot gnu dot org>
- To: gcc-bugs at gcc dot gnu dot org
- Date: 28 Oct 2003 00:56:43 -0000
- Subject: [Bug optimization/12800] [tree-ssa] Store dropped after cast to pointer from integer of different size
- References: <20031028001552.12800.falk@debian.org>
- Reply-to: gcc-bugzilla at gcc dot gnu dot org
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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?