Re: [PATCH] IPA ICF: make hash values finer

2015-03-24 Thread Jan Hubicka
> >From 1943aa293c1ff7622cf9090a834d7bd9dfaaf086 Mon Sep 17 00:00:00 2001 > From: mliska > Date: Mon, 23 Mar 2015 15:36:11 +0100 > Subject: [PATCH] IPA ICF: enhance hash value calculated in TU > > gcc/ChangeLog: > > 2015-03-23 Jan Hubicka > Martin Liska > > * ipa-icf-gimple

[PATCH] IPA ICF: make hash values finer

2015-03-24 Thread Martin Liška
Hello. Following patch should be final speed-up patch for IPA ICF. It just basically enhances hash values of a symbol, computed in a TU. Having finer hash values, we do not spend so much time in WPA phase. It shows, we can reduce utilization from 14% -> 9% (_w/o_ WPA streaming out). Time report