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[PATCH][PR 56727] Bypass PLT for recursive calls

From: Yuri Gribov <tetra2005 at gmail dot com>
To: GCC Patches <gcc-patches at gcc dot gnu dot org>
Cc: Jan Hubicka <hubicka at ucw dot cz>, Jakub Jelinek <jakub at redhat dot com>, Alexander Monakov <amonakov at ispras dot ru>
Date: Sat, 1 Jul 2017 21:43:09 +0100
Subject: [PATCH][PR 56727] Bypass PLT for recursive calls
Authentication-results: sourceware.org; auth=none

Hi all,

This is a fix for https://gcc.gnu.org/bugzilla/show_bug.cgi?id=56727
which replaces recursive PLT calls with direct calls to static
aliases.

In presense of function aliases this patch takes a conservative
approach and keeps the PLT call (Jan suggested to optimize more
aggressively even when aliases are present but I haven't implemented
this).

-Y

Attachment: pr56727.patch
Description: Binary data

Follow-Ups:
- Re: [PATCH][PR 56727] Bypass PLT for recursive calls
  - From: Rainer Orth

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