On 01/07/2012 03:36 AM, Jakub Jelinek wrote:
> PR gcov-profile/50127
> * bb-reorder.c (partition_hot_cold_basic_blocks): Clear
> bb->aux before running df_analyze.
Ok except,
> + /* Clear bb->aux fields that the above routines were using. */
> + FOR_EACH_BB (bb)
> +bb->au
Hi!
When tree-prof/bb-reorg.c is compiled with 32-bit host cc1 with
-fprofile-use, it is miscompiled. The problem is
that partition_hot_cold_basic_blocks leaves garbage (other bb
pointers) in bb->aux of some basic blocks and df_analyze
assumes (like other passes) that it is cleared and uses
->aux
