[Bug target/47564] [4.6 Regression] internal compiler error in memory_address_addr_space, at explow.c:504

["jakub at gcc dot gnu.org" <gcc-bugzilla at gcc dot gnu dot org>]

http://gcc.gnu.org/bugzilla/show_bug.cgi?id=47564

Jakub Jelinek <jakub at gcc dot gnu.org> changed:

           What    |Removed                     |Added
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             Status|NEW                         |ASSIGNED
         AssignedTo|unassigned at gcc dot       |jakub at gcc dot gnu.org
                   |gnu.org                     |

--- Comment #8 from Jakub Jelinek <jakub at gcc dot gnu.org> 2011-02-02 10:00:11 UTC ---
Created attachment 23211
  --> http://gcc.gnu.org/bugzilla/attachment.cgi?id=23211
gcc46-pr47564.patch

Updated fix.  For 4.7 I'd say we want to split this reinitialization up, into
reinitializations that matter for tree optimizations (ideally those could be
saved into (and restored from) some save area pointed to from
TARGET_OPTION_NODE, e.g. init_set_costs can be saved into target_cfgloop
structure), and initializations that only matter from expand_gimple_cfg entry
till free_after_compilation (there we could remember the last
TARGET_OPTION_NODE (or global) and if current TARGET_OPTION_NODE (or global) is
different from it, call the init_* calls at the beginning of expand_gimple_cfg.