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[Bug tree-optimization/55177] missed optimizations with __builtin_bswap
- From: "ubizjak at gmail dot com" <gcc-bugzilla at gcc dot gnu dot org>
- To: gcc-bugs at gcc dot gnu dot org
- Date: Fri, 23 Jan 2015 14:00:01 +0000
- Subject: [Bug tree-optimization/55177] missed optimizations with __builtin_bswap
- Auto-submitted: auto-generated
- References: <bug-55177-4 at http dot gcc dot gnu dot org/bugzilla/>
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=55177
--- Comment #16 from UroÅ Bizjak <ubizjak at gmail dot com> ---
(In reply to David Woodhouse from comment #15)
> {
> return (p->data[0] << 24) | (p->data[1] << 16) | (p->data[2] << 8) |
> p->data[1];
> }
p->data[3] ?
> unsigned add(struct pkt *p)
> {
> return (p->data[0] << 24) + (p->data[1] << 16) + (p->data[2] << 8) +
> p->data[1];
... and here?