------- Comment #5 from iains at gcc dot gnu dot org 2010-05-15 08:59 -------
(In reply to comment #4)
> Subject: Re: [4.6 Regression] emutls is broken under a
> range of circumstances.
>
> The problem is because emultls is handling declarations in a way so references
> are not visible to
> middle end. I guess we need to put DECL_PRESERVE at the emultls variable so
> it
> stays innert.
Index: gcc/varasm.c
===================================================================
--- gcc/varasm.c (revision 159429)
+++ gcc/varasm.c (working copy)
@@ -386,6 +386,7 @@ emutls_decl (tree decl)
DECL_TLS_MODEL (to) = TLS_MODEL_EMULATED;
DECL_ARTIFICIAL (to) = 1;
DECL_IGNORED_P (to) = 1;
+ DECL_PRESERVE_P (to) = 1;
TREE_READONLY (to) = 0;
SET_DECL_ASSEMBLER_NAME (to, DECL_NAME (to));
if (DECL_ONE_ONLY (decl))
looks good so far .. I'll have to wait for the bootstrap on x86_64 to
succeed/fail to try it there too (PR44146
--
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=44132
