From mboxrd@z Thu Jan 1 00:00:00 1970 From: Gerald Pfeifer To: Mark Mitchell Cc: geoffk@cygnus.com, ddolan@andrew.cmu.edu, gcc@gcc.gnu.org, oldham@codesourcery.com Subject: Re: SSA implementation Date: Thu, 29 Jun 2000 12:24:00 -0000 Message-id: References: <20000629121100U.mitchell@codesourcery.com> X-SW-Source: 2000-06/msg00767.html On Thu, 29 Jun 2000, Mark Mitchell wrote: > We will be contributing a dead-code elimination pass in the very near > future that operates on the SSA form. One big improvement is that > this algorithm is a) very fast and b) can eliminate loops in things > like: > > void f () { > int i; > for (i = 0; i < 100; ++i) > ; > } When you do so, please don't also update the "Deleting ``empty'' loops" section in the GCC manual. Some time ago I added a note that in the future the behavior described there will change which apparently is going to happen now. :-) Gerald -- Gerald "Jerry" pfeifer@dbai.tuwien.ac.at http://www.dbai.tuwien.ac.at/~pfeifer/ Have a look at http://petition.eurolinux.org -- it's not about Linux, btw!