[PATCH][4.1] Fix PR26763
Wed Apr 5 10:34:00 GMT 2006
On Tue, 4 Apr 2006, Roger Sayle wrote:
> On Mon, 3 Apr 2006, Richard Guenther wrote:
> > 2006-04-03 Richard Guenther <email@example.com>
> > PR tree-optimization/26763
> > * fold-const.c (fold_binary): Fold PTR + CST CMP PTR + CST
> > only for EQ_EXPR and NE_EXPR.
> > * gcc.dg/torture/pr26763-1.c: New testcase.
> > * gcc.dg/torture/pr26763-2.c: Likewise.
> And this version is OK for the gcc-4_1-branch. Let's keep an
> eye open for possible performance issues. This fix is fine as
> this is a serious wrong-code regression, but if it costs a lot
> in performance, we'll need to investigate (prioritize) a longer
> term solution to recover these optimizations.
We now have PR27039. But I really have no idea what to do here.
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