On 1/20/06, Steven Bosscher <[EMAIL PROTECTED]> wrote: > On Tuesday 03 January 2006 17:27, Richard Henderson wrote: > > On Mon, Jan 02, 2006 at 12:45:49AM -0500, Daniel Berlin wrote: > > > ... the real > > > solution is to transfer the information that the stack space sharing > > > knows into some simple set form, and use *that directly* in alias.c, and > > > check it *first*, so that if they have the same stack slot, we say there > > > is a dependence, even if the memory expressions/types/etc look > > > different. > > > > ... And that doesn't work for the test case, because we've > > carefuly thrown away any information that might have given > > us any information wrt the stack slots. > > > > I'll have to give this some thought. > > Hi rth, > > Is your "think this over"-process still runnig? ;-) > > We've tried to add some more food for thought in the audit trail > of PR25654, which is tracking this issue. Hope you'll add your > thoughts so far, so that we can make some progress on getting a > PR GCC 4.1 regression fixed...
A patch was also posted based on ideas in the audit trail. It's third incarnation at http://gcc.gnu.org/ml/gcc-patches/2006-01/msg00967.html would need a review. Richard.
