From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: by sourceware.org (Postfix, from userid 1075) id DB11738930EC; Mon, 26 Apr 2021 20:25:35 +0000 (GMT) DKIM-Filter: OpenDKIM Filter v2.11.0 sourceware.org DB11738930EC To: gcc-cvs-wwwdocs@gcc.gnu.org Subject: gcc-wwwdocs branch master updated. 08249747b2539776f2f071438e6c496e174bfcfc X-Git-Refname: refs/heads/master X-Git-Reftype: branch X-Git-Oldrev: c88fea4535093106bb9dcb1548194e1d94b0bd2a X-Git-Newrev: 08249747b2539776f2f071438e6c496e174bfcfc Message-Id: <20210426202535.DB11738930EC@sourceware.org> Date: Mon, 26 Apr 2021 20:25:35 +0000 (GMT) From: Jan Hubicka X-BeenThere: gcc-cvs-wwwdocs@gcc.gnu.org X-Mailman-Version: 2.1.29 Precedence: list List-Id: Gcc-cvs-wwwdocs mailing list List-Unsubscribe: , List-Archive: List-Help: List-Subscribe: , X-List-Received-Date: Mon, 26 Apr 2021 20:25:36 -0000 This is an automated email from the git hooks/post-receive script. It was generated because a ref change was pushed to the repository containing the project "gcc-wwwdocs". The branch, master has been updated via 08249747b2539776f2f071438e6c496e174bfcfc (commit) from c88fea4535093106bb9dcb1548194e1d94b0bd2a (commit) Those revisions listed above that are new to this repository have not appeared on any other notification email; so we list those revisions in full, below. - Log ----------------------------------------------------------------- commit 08249747b2539776f2f071438e6c496e174bfcfc Author: Jan Hubicka Date: Mon Apr 26 22:25:18 2021 +0200 Document IPA/LTO/FDO changes. diff --git a/htdocs/gcc-11/changes.html b/htdocs/gcc-11/changes.html index 6f58cfe8..2c98b9a3 100644 --- a/htdocs/gcc-11/changes.html +++ b/htdocs/gcc-11/changes.html @@ -170,6 +170,39 @@ a work-in-progress.

use -g together with -gdwarf-2, -gdwarf-3 or -gdwarf-4. +
  • + Inter-procedural optimization improvements: +
      +
    • A new IPA-modref pass was added to track side effects of function calls + and improve precision of points-to-analysis. The pass can be controlled + by the -fipa-modref option. +
      • +
    • The identical code folding pass (controlled by -fipa-icf) + was significantly improved to increase the number of + unified functions and to reduce compile-time memory use.
      • +
    • IPA-CP (Interprocedural constant propagation) + heuristics improved its estimation of potential usefulness of + known loop bounds and strides by taking the estimated frequency of + these loops into account.
      • + +
    • + Link-time optimization improvements: +
        +
      • The LTO bytecode format was optimized for smaller object files and + faster streaming.
        • +
      • Memory allocation of the linking stage was improved to reduce peak + memory use.
        • +
      +
      • +
    • + Profile driven optimization improvements: +
        +
      • + Using -fprofile-values, + was improved by tracking more target values for e.g. indirect calls. +
        • +
      +
    ----------------------------------------------------------------------- Summary of changes: htdocs/gcc-11/changes.html | 33 +++++++++++++++++++++++++++++++++ 1 file changed, 33 insertions(+) hooks/post-receive -- gcc-wwwdocs