Re: [patch] experimenting with renumbering of pseudos after expand

2012-10-01 Thread Richard Guenther
On Mon, Oct 1, 2012 at 2:06 PM, Steven Bosscher wrote: > Hello, > > For most code, expand creates a lot of pseudos that are cleaned up in > subsequent passes, if they even live long enough to make it there. On > average, for cc1 preprocessed source, the number of "holes" in > regno_reg_rtx is abou

[patch] experimenting with renumbering of pseudos after expand

2012-10-01 Thread Steven Bosscher
Hello, For most code, expand creates a lot of pseudos that are cleaned up in subsequent passes, if they even live long enough to make it there. On average, for cc1 preprocessed source, the number of "holes" in regno_reg_rtx is about half the size of that array, or in other words: regno_reg_rtx is