This is the mail archive of the gcc-patches@gcc.gnu.org mailing list for the GCC project.

Index Nav:	[Date Index] [Subject Index] [Author Index] [Thread Index]
Message Nav:	[Date Prev] [Date Next]	[Thread Prev] [Thread Next]
Other format:	[Raw text]

[patch] fix TM clone drops at LTO time

From: Aldy Hernandez <aldyh at redhat dot com>
To: gcc-patches <gcc-patches at gcc dot gnu dot org>, Richard Henderson <rth at redhat dot com>
Date: Mon, 23 Jan 2012 11:16:39 -0600
Subject: [patch] fix TM clone drops at LTO time

While working on PR51698, I've noticed the LTO/TM rabbit hole goes much deeper.

The compiler is dropping transactional clones with -flto because the externally_visible bit is unset for clones. This is so because cgraph_copy_node_for_versioning unconditionally zaps it. I have fixed the TM infrastructure to set the bit on the clones if the original version had it set.

This patch will be needed to get PR51698 and LTO working with TM.

OK?

Attachment: curr
Description: Text document

Follow-Ups:
- Re: [patch] fix TM clone drops at LTO time
  - From: Richard Henderson

Index Nav:	[Date Index] [Subject Index] [Author Index] [Thread Index]
Message Nav:	[Date Prev] [Date Next]	[Thread Prev] [Thread Next]