From patchwork Sun Nov  6 21:05:05 2011
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Subject: PR lto/50964: [trans-mem] fail gracefully when -flto and -fgnu-tm
From: Aldy Hernandez <aldyh@redhat.com>
X-Patchwork-Id: 123967
Message-Id: <4EB6F681.9050000@redhat.com>
To: Diego Novillo <dnovillo@google.com>
Cc: gcc-patches <gcc-patches@gcc.gnu.org>,
 Richard Guenther <richard.guenther@gmail.com>
Date: Sun, 06 Nov 2011 13:05:05 -0800

> "LTO support is currently not supported with transactional memory"
>
> 'support' mentioned one too many times.  Maybe 'LTO is currently not
> supported with transactional memory'?
>
>
> Diego.

How is this?
* opts.c (finish_options): Error out when using -flto and
	-fgnu-tm.


Index: opts.c
===================================================================
--- opts.c	(revision 181028)
+++ opts.c	(working copy)
@@ -784,6 +784,8 @@ finish_options (struct gcc_options *opts
 #endif
       if (!opts->x_flag_fat_lto_objects && !HAVE_LTO_PLUGIN)
         error_at (loc, "-fno-fat-lto-objects are supported only with linker plugin.");
+      if (opts->x_flag_tm)
+	error_at (loc, "LTO is currently not supported with transactional memory");
 }
   if ((opts->x_flag_lto_partition_balanced != 0) + (opts->x_flag_lto_partition_1to1 != 0)
        + (opts->x_flag_lto_partition_none != 0) >= 1)