[PATCH, CHKP] Restore transparent alias chains

[Ilya Enkovich]

Ping. This patch doesn't affect not instrumented code.

Thanks,
Ilya

2015-03-20 11:20 GMT+03:00 Ilya Enkovich <enkovich.gnu@gmail.com>:
> Hi,
>
> Identifiers read with input_identifier miss IDENTIFIER_TRANSPARENT_ALIAS bit.  We always expect it for instrumentation clones, thus restore it input_cgraph_1.  Bootstrapped and tested on x86_64-unknown-linux-gnu.  OK for trunk?
>
> Thanks,
> Ilya
> --
> 2015-03-20  Ilya Enkovich  <ilya.enkovich@intel.com>
>
>         * lto-cgraph.c (input_cgraph_1): Always link instrumented
>         assembler name with original one.
>
>
> diff --git a/gcc/lto-cgraph.c b/gcc/lto-cgraph.c
> index c875fed..d782327 100644
> --- a/gcc/lto-cgraph.c
> +++ b/gcc/lto-cgraph.c
> @@ -1613,9 +1613,8 @@ input_cgraph_1 (struct lto_file_decl_data *file_data,
>                 }
>
>               /* Restore decl names reference.  */
> -             if (IDENTIFIER_TRANSPARENT_ALIAS (DECL_ASSEMBLER_NAME (cnode->decl))
> -                 && !TREE_CHAIN (DECL_ASSEMBLER_NAME (cnode->decl)))
> -               TREE_CHAIN (DECL_ASSEMBLER_NAME (cnode->decl))
> +             IDENTIFIER_TRANSPARENT_ALIAS (DECL_ASSEMBLER_NAME (cnode->decl)) = 1;
> +             TREE_CHAIN (DECL_ASSEMBLER_NAME (cnode->decl))
>                   = DECL_ASSEMBLER_NAME (cnode->orig_decl);
>             }
>         }